Home

EOS User Manual

1. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program and you want it to be of the greatest possible use to the public the best way to achieve this is to make it free software which everyone can redistribute and change under these terms To do so attach the following notices to the program It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty and each file should have at least the copyright line and a pointer to where the full notice is found lt one line to give the program s name and a brief idea of what it does gt Copyright C lt year gt lt name of author gt This program is free software you can redistribute it and or modify it under the terms of the GNU General Public License as published by the Free Software Foundation either version 2 of the License or at your option any later version This program is distributed in the hope that it will be useful but WITHOUT ANY WAR MERCHANTABILITY or GNU General Public RANTY without even the implied warranty of FITNESS FOR A PARTICULAR PURPOSE See the License for more details You should have received a copy of the GNU General Public License along with this program if not write to the Free Software Foundation Inc EOS User Manual 218 CHAPTER 5 OPEN SOURCE LICENSES 51 Franklin Street Fifth Floo
2. See Also show tacacs EOS User Manual 16 CHAPTER 2 CLICOMMANDS l clear counters Name clear counters Clear interface counters set all counters to 0 Synopsis clear counters interface session Description This command clears counters for the specified interface or for all interfaces if none is specified With the session modifier the clearing is effective only within the current CLI session i e other CLI sessions are unaffected This command is useful when looking for small changes in packet or error counters it in effect establishes a baseline and future uses of the show interfaces or show interfaces counters commands will be relative to the baseline Mode Privileged EXEC See Also show interfaces show interfaces counters EOS User Manual 17 CHAPTER 2 CLICOMMANDS l clear mac address table dynamic Name clear mac address table dynamic Clear dynamic entries from the MAC address table Synopsis clear mac address table dynamic vlanv an d interfacename Description Clears the dynamic entries in the MAC address table The command when used with no arguments clears all the dynamic entries in the MAC address table The entries to be cleared can also be filtered by specifying the vlanId of the vlan or an interface for which the entries are to be cleared Mode Priviliged EXEC See Also vlan show mac address table EOS User Manual 18 CHAPTER 2 CLICOMMANDS l clear sp
3. Synopsis Description See Also show errdisable recovery Display a summary of recovery timer settings and recovery status for errdisabled interfaces show errdisable recovery The command displays errdisable recovery timer setting for each errdisable reason cause and recovery status for errdisabled interfaces that have recovery timers The command shows the er rdisable causes and the time left before the recovery timeout for the errdisabled interfaces The command does not display status for interfaces that are errdisabled due to causes for which timer recovery is not enabled EXEC show interfaces status errdisabled errdisable recovery cause errdisable recovery interval EOS User Manual 93 CHAPTER 2 CLICOMMANDS l show error Name show error Display details about a particular system error message Synopsis show error number Description Displays the details of a particular system error message The number specified is the error number All system errors are numbered and start from 0 If the error number passed in has not been generated yet the command returns a message indicating so Mode EXEC EOS User Manual 94 CHAPTER 2 CLICOMMANDS l show extensions Name show extensions Display status of EOS extensions Synopsis show extensions detail Description Displays status of the EOS extensions that are present in the extensions filesystem and or installed Extensions can
4. show spanning tree detail Name Synopsis Description show spanning tree detail Display a detailed description of the spanning tree protocol state show spanning tree detail The show spanning tree detail command displays a detailed listing of the state of the spanning tree protocol running on the switch Here is an example of the command output Rstp is executing the rstp Spanning Tree protocol Bridge Identifier has priority 32768 sysid 0 address 001c 7301 0089 Configured hello time 2 max age 20 forward delay 15 transmit hold count 6 We are the root of the spanning tree Number of topology changes 1 last change occurred 272586 seconds ago from Ethernet20 Times hello 2 max age 20 forward delay 15 Port 1 Ethernet1 of Rstp is designated forwarding Port path cost 2000 Port priority 128 Port Identifier 128 1 Designated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301 0089 Designated port id is 128 1 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 1 Link type is point to point by default Internal BPDU sent 136064 received 0 taggedErr 0 otherErr 0 Port 2 Ethernet2 of Rstp is designated forwarding Port path cost 2000 Port priority 128 Port Identifier 128 2 Designated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301
5. Mode EXEC See Also show interfaces Interface Range Syntax EOS User Manual 108 CHAPTER 2 CLICOMMANDS l show interfaces status errdisabled Name Mode Synopsis Description See Also show interfaces status errdisabled Display a summary status of errdisabled interfaces show interfaces interface status errdisabled The command displays status of the specified errdisabled interface or for all errdisabled interfaces if no interface is specified The status shows the interface name link status and the errdisable reasons which are also referred to as errdisable causes EXEC show errdisable recovery EOS User Manual 109 CHAPTER 2 CLICOMMANDS l show interfaces switchport Name Mode Synopsis Description See Also show interfaces switchport Display configured switching properties of interfaces show interfaces interface range switchport show interfaces switchport displays the current configuration of the specified interface range or of all interfaces if no interface range is specified For example consider the following configuration vlan 1 20 interface Ethernet1 switchport access vlan 2 switchport trunk native vlan 13 switchport trunk allowed vlan 1 2 7 10 20 switchport mode trunk The output of the show interfaces Ethernet1 switchport command is localhost show interfaces ethl switchport Name Etl Switchport Enabled Administrative Mode
6. show environment cooling Name show environment cooling Display cooling related status of the system Synopsis show environment cooling Description Displays the system fan status fan speed configuration and ambient temperature Mode EXEC See Also show environment temperature EOS User Manual 89 CHAPTER 2 CLICOMMANDS show environment power Name Mode Synopsis Description See Also show environment power Display cooling related status of the system show environment power Displays the system fan status fan speed configuration and ambient temperature EXEC show environment temperature EOS User Manual 90 CHAPTER 2 CLICOMMANDS l show environment temperature Name show environment temperature Display the current operating temperature Synopsis show environment temperature Description Displays the current operating temperature of the system Mode EXEC See Also show environment cooling EOS User Manual 91 CHAPTER 2 CLICOMMANDS l show errdisable detect Name show errdisable detect Display a summary of errdisable detection settings Synopsis show errdisable detect Description The command displays the errdisable detection setting for the errdisable causes Mode EXEC See Also show errdisable recovery EOS User Manual 92 CHAPTER 2 CLICOMMANDS l show errdisable recovery Name Mode
7. Name Synopsis Description Mode See Also pwd Display the current working directory pwd Display the URL of the current working directory Privileged EXEC cd EOS User Manual 77 CHAPTER 2 CLICOMMANDS l reload Name Synopsis Description Mode See Also reload Reset and restart the system reload power now The reload command can be used to reset the system When the optional power argument is spec ified the system is power cycled Otherwise a soft reset is performed Unless the optional now argument is specified there is a prompt if there are unsaved changes and a prompt to confirm the reload If there are unsaved changes the prompt will allow saving the running confg and also viewing the differences between running config and startup config The power cycle option is a way to reset the system completely including memory states and other hardware logic that may not be cleared on a soft reset While this option is available the simple reload command is sufficient for resetting the system Privileged EXEC copy startup config running config EOS User Manual 78 CHAPTER 2 CLICOMMANDS l rename Name rename Rename a file Synopsis rename source url destination url Description Renames source url to destination url source url and destination url must be on the same filesys tem If destination url already exists it is overwritten Mo
8. One VLAN called the native VLAN of the interface is used for untagged traffic it is configured using the switchport trunk native vlan command Typically access mode is used for interfaces that connect to hosts whereas trunk mode is used for interfaces that connect to other switches The no and default forms of the command both revert the interface to the default switching mode which is access mode Interface Configuration switchport access vlan switchport trunk allowed vlan switchport trunk native vlan show interfaces switchport EOS User Manual 190 CHAPTER 2 CLICOMMANDS l switchport trunk allowed vlan Name Synopsis Description Mode switchport trunk allowed vlan Configure the allowed VLAN set for an interface in trunk mode switchport trunk allowed vlan except vlanSet switchport trunk allowed vlan add remove vlanSet switchport trunk allowed vlan all none no switchport trunk allowed vlan default switchport trunk allowed vlan The switchport trunk allowed vlan command configures the allowed VLAN set of an interface that is in trunk mode The vlanSet argument must be a comma separated list of individual VLAN IDs and or hyphen separated VLAN ID pairs indicating a range of VLAN IDs where each VLAN ID is an integer in the range 1 through 4094 The following are all examples of valid vlanSet arguments e 1234 e 1 3 5 7 e 100 200 e 5 100 1000 99 3000 4094 When the interface is
9. Public License instead of this License EOS User Manual 219
10. VFAT but if you use Windows to format the drive be sure not to select NTFS Accessing the Network Aboot can access networks via the management Ethernet port s On a switch with two manage ment ports Aboot provides network interfaces mgmt 1 and mgmt 2 These ports are unconfigured by default you can configure management port settings using Aboot shell commands like ifconfig and udhcpc Once a management interface is configured properly you can use wget to transfer files from an HTTP or FTP server t ftp to transfer files from a TFTP server or mount to mount an NES filesys tem Configuring Aboot Aboot reads its configuration from boot config on the internal flash boot config is a plain ASCII text file containing a series of configuration settings one per line Each configuration setting is a line of the form NAME VALUE where NAME is the setting name like SWI and VALUE is its value Both NAME and VALUE may not contain spaces Blank lines and lines beginning with a character are treated as comments and are ignored EOS User Manual 210 CHAPTER 4 ABOOT SWI Aboot attempts to boot the software image specified by SWI automatically The SWI variable encodes a full local or network path using the same format accepted by the boot command Aboot accepts a number of SWI path formats If SWI is not specified in boot config or an error occurs while booting the SWI due to an incorrect path or an unavailable HTTP server
11. Without this argument the datagram defaults to 72 bytes The timeout argument can be used to specify a timeout interval for the echo requests You can use Ctrl C to interrupt the ping command This is helpful when the timeout period is long and the host you are trying to connect to is unreachable A summary output is shown at the end of the ping command showing you the number of packets transmitted received roundtrip time and average latency If the destination host is unreachable and you are certain that there is no problem in the network you can use the show ip route command to see the current routing table of the system Privileged EXEC show ip route EOS User Manual 75 CHAPTER 2 CLICOMMANDS l prompt Name prompt Set the CLI prompt Synopsis prompt prompt no prompt Description Sets the Command Line Interface CLI prompt to prompt Any of the following escape sequences may be present in prompt h The hostname of the switch up to the first H The hostname of the switch p The prompt string for the current mode for example gt in user EXEC mode in privileged EXEC mode or config in global configuration mode s A space character t A tab character Yo A percent character The no form of the command reverts the prompt to its default value of h p Mode Global Configuration See Also hostname EOS User Manual 76 CHAPTER 2 CLICOMMANDS l pwd
12. as table header lines are not filtered out For example nz is often helpful for filtering the output of the show interface counters command so that you see only the lines for interfaces that have non zero counters so334 show interfaces counters rt Po Et 1 Et Et Et Et al Po2 Por Et Et Et Et Et al Po2 so334 Mode EOS User Manual O xu aan N wo I om dO Privileged EXEC InOctets 320 320 65400630 59834349 9838654 584418602 69671947 OutOctets 320 320 1899920 1933200 1900688 56281330 3833888 nz InUcastPkts 332230 0 OutUcastPkts 32751 0 0 0 0 0 3 0 InMcastPkts 5 5 449879 433533 27431 0 460960 OutMcastPkts 5 5 13195 13425 13207 26632 InBcastPkts 428953 CHAO EY E LO A OutBcastPkts OO O O O SOLO 74 CHAPTER 2 CLICOMMANDS l ping Name Synopsis Mode See Also Description ping Ping another host to test network connectivity ping hostname df bit repeat count size num timeout seconds The ping command is similar to the standard ping command in unix You can specify a hostname or the IP address of the host you are trying to reach The df bit argument can be used to set the do not fragment bit The repeat argument can be used to specify how many times to repeat the echo request The default is 5 echo packets The size argument can be used to specify the datagram size
13. t t obligations then both it and this tion of the Program Ll is held invalid or as a consequence you Program by at all For example if a patent ty free redistribution of the irectly or indirectly through you then icense would be to unenforceable under he balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances t is not the purpose of t uch claims this section ntegrity of the free software mplemented by public license enerous contributions to hrough system it is up to the au I p S i i g t distribution system which is practices his section to induce you to infringe any atents or other property right claims or to contest validity of any has the sole purpose of protecting the Many people have made the wide range of software distributed that system in reliance on consistent application of that thor donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice This section is inte be a consequence of he rest o 8 If the distribu certain countries eit original copyright ho may add an explicit g those countries so that distr countries not thus excluded the limitation as if written i her by pa 9 The Free Software Foundat of the General Public License lder who places the Program unde eographical distribution limitat
14. 10 Ethernet12 forwarding vlans 11 20 If the link state of interface Ethernet 1 goes down the output of the command becomes localhost show interfaces switchport backup Switch backup interface pair Ethernet11 Ethernet12 Primary Interface Ethernet11 State Down Backup Interface Ethernet12 State Up Ethernet11 forwarding vlans Ethernet12 forwarding vlans 1 20 If the Spanning Tree protocol mode is changed to something other than backup the output of the command becomes localhost show interfaces switchport backup Switch backup interface pair Ethernet11 Ethernet12 Primary Interface Ethernet11 State Inactive Configuration Backup Interface Ethernet12 State Inactive Configuration EOS User Manual 111 CHAPTER 2 CLICOMMANDS Mode EXEC EOS User Manual 112 CHAPTER 2 CLICOMMANDS l show interfaces transceiver properties Name show interfaces transceiver properties Display speed duplex and media type properties of the interface Synopsis show interfaces interface range transceiver properties Description Displays the configured and operational speed and duplex of a range of interfaces or all interfaces if no range is specified In addition the media type is displayed The media type is helpful in distinguishing transceivers based on their capabilities Mode EXEC See Also show interfaces status show interfaces Interface Range Syntax EOS User Manual 113 CHAPTER 2 CLICOMMANDS l
15. A eee Phe bead 164 BOW WPS fc ea ee Sa he os Be Se as GS eh as SR ee See Ae 165 ROW UREIG e ek gay be Beers Ge ae GA Ok Gad eee we Cw ee aw eae ba dae eee FS 166 BR VOUS fon ita ee A A ae es Be a a Oe oe we BS eb es a Be es 167 BROW VIG oe soe a A Re ee Re Ea a sh aes AG wate Go a ee he oo Sew 168 SHUI o e go eee eee bee es SA eo ee ake eee dae Re eee bee eee So 169 EOS User Manual vi CONTENTS o COMMUNTIY 6c Ae a een aA ee ae ee Pe ee e 170 Snimp server COME sk aw ee a ew a Ra EA ee ewe ee wee 171 Sup Server SOW sdk oe Geos we ae ee OA eS ee Cae ee Seb ede ee eed amp S 172 RMP ROVER MABE oe oe EA Ape A EEE Ses Ae Sb R wo ee 173 SGMP BEEN USEF Les Se MR ee eR OR RS A ee RE 174 Ss a fo bo eh Seek Ee wR Re RSE See ek Me ea ee be ees 175 Ja CORE i sok ok AG ee a A Re Ree eR AG EE oe SS 176 spanning tree Torwardaimie e sora s oe twa ee A RA ees 177 PANNE mes NOR PE 0 2 A OM A AA lide ds 178 RPMI MARES ccoo adas de A ee EEE eS be A 179 SPUMMINEACES mode ica A A e A A AA 180 Spanninie Wee POLE PUO S oo ee ee e ae eae a 181 SPALMINE ACES POMAR Cae a he SR ee ee a 182 SPaNMINE Aes POMIAS AUER cosas eR RR ERE ERE ARES eR EN ES De RES 183 spanning SES POST eoo se SA ee a SE e SA ae SR ee bee a ee 184 RPAUMINE MICS TOOL o AG ee e AR Re A eR DAG We RS BS 185 spanning tree transmit bold count 2 0 6 ee ee ee ee ee 186 SWUCOPOIACESEE V A cc aa Bee A See a AG whee Oh a ee ee oe AS Soe 187 Switchport BACKUD IMSTAES ooo ee ee eee
16. EB ee ee ee 26 OEE 6 6 cae pan de Pe ROAR ee ee eRe ey hee eRe ee oe pd ey eT eRe Ro 27 JescNpRON s cif ek oe eee eek a Ee bea eee eee Eee ee be Bs 28 MAIG a Ae Ree oS AE Ba RS ws 29 Oe weak oe Bae ee ARE ee ee A A A AAA Se a 30 WM ey Bake ee Rees yy Gta e Ge ee he a eee pes E AS Buen apres et Ae ode its plis 31 URI eke eee Coe ee ee ek a eee AAA oe eee ee eS 32 ONO a bw aes A aa ba Geo RI A alte we a ede e el oe N 33 CWADIG e bc bw awe et Be Pa he ea ee Be eee be eee ee eee eee ee a EA 34 e sv Ge e Sl we Bae a he ee Re aS eal Yee be ae ea x 35 CR bee een dye PARR ey ee eRe RE eS Game ee pd eee See BS 36 ENVIE Sa GA A ee a SO a SAS eS Se eb ee ae eee 37 PASO SAIGON e Ss ea Ghar a ee A Re RR ela A Be oe 8 38 edisable recovery CAUSE e a ee a eS OO ee ee ee 39 ernaisable eco WEI aia Sek A ee A a Re ee See a RR eS 40 CH eet eke O Coe ee ee oe ee A eee ee ee ee eee ES 41 ROI EEE RU aed SG EA AAA A Re BEE A 42 IAS a AA E A A A Oe ee ee Ae 43 ME a a A A ee O AA Oo e be A 44 MERIC AA IA 45 ITEHACe Parece ono cr aa E A Sk e GS ae de ds a a Ae ge 46 IP USAN loa a a a A e A A A Em Ee Boe S 47 eo PI NN 48 ip PEO SROOPING QUES aa ca a A a A A e a E G 49 IP PIMP snooping FODUSIMESS lt s scenic a a ee ee ee 51 EOS User Manual ii CONTENTS IP MPTP SMOOPIIS QU o back ee CR aA ee ae eee aed ae ee 52 INABIOO snooping SANG cocer a alae Sea ee wa eee ee ea eee N 53 POSES gt 0 e we Kae SRR PEE eee Soe ek oe bd dw te Gee bas 54 IP TOU
17. Fwd Instance Priority MAC addr Time Age Dly Rstp 32768 32768 sys id 0 001c 7301 0089 2 20 15 Mode EXEC EOS User Manual 149 CHAPTER 2 CLICOMMANDS l show spanning tree bridge detail Name show spanning tree bridge detail Display a detailed description of the spanning tree protocol bridge configuration Synopsis show spanning tree bridge detail Description The show spanning tree bridge detail command displays a list of the spanning tree protocol con figuration information for each spanning tree instance running on the switch The switch currently supports only one instance so the list is somewhat short Here is an example of the command output Rstp Bridge ID Priority 32768 priority 32768 sys id ext 0 Address 001c 7301 0089 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Mode EXEC EOS User Manual 150 CHAPTER 2 CLICOMMANDS l show spanning tree counters Here is an example of the command output por Et Et Et Et Et Et hernet5 hernet6 hernet7 hernet8 hernet22 hernet24 Mode EXEC EOS User Manual sent received taggedErr 582 582 582 582 583 3 0 0 381 381 582 o ooooo otherErr O lt ES Name show spanning tree counters Display the spanning tree BPDU counters Synopsis show spanning tree counters Description The show spanning tree counters command displays the state of the spanning tree BPDU counters 151 CHAPTER 2 CLICOMMANDS
18. License and other open source licenses License text for EOS components can be viewed by running show version license in the EOS CLI Complete source code is available from http www aristanetworks com en gpl or by contacting support aristanetworks com GNU GENERAL PUBLIC LICENSE Version 2 June 1991 Copyright C 1989 1991 Free Software Foundation Inc 51 Franklin Street Fifth Floor Boston MA 02110 1301 USA Everyone is permitted to copy and distribute verbatim copies of this license document but changing it is not allowed Preamble The licenses for most software are designed to take away your freedom to share and change it By contrast the GNU General Public License is intended to guarantee your freedom to share and change free software to make sure the software is free for all its users This General Public License applies to most of the Free Software Foundation s software and to any other program whose authors commit to using it Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead You can apply it to your programs too When we speak of free software we are referring to freedom not price Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software and charge for this service if you wish that you receive source code or can get it if you want it that you can change the software or use pieces of
19. Vlan3 and Vlan5 use the command show startup config interface vlan 1 3 5 Privileged EXEC EOS User Manual 161 CHAPTER 2 CLICOMMANDS l show tacacs Name show tacacs Display TACACS status Synopsis show tacacs Description Displays any TACACS servers that have been configured as well as any TACACS server groups and the list of servers in each group The following counters that track the interactions between EOS and each TACACS server will also be displayed e Connection opens Attempts to initiate a new TCP connection to the server e Connections closes Connections closed by the client normally after being successfully established e Connection disconnects Connections that were closed by the server e Connection failures Failed connection attempts not including timeouts e Connection timeouts Connection attempts that failed due to timeout e Messages sent Messages sent by the client over established connections e Messages received Messages received from the server e Receive errors Messages received from the server that resulted in some sort of error For example incorrect session id e Receive timeouts Timeouts occurred while waiting for a message from the server e Send timeouts Timeouts occurred while waiting to send a message while the socket was not writable Mode EXEC See Also tacacs server host EOS User Manual 162 CHAPTER 2 CLICOMMANDS l show tech su
20. and a notice that there is no wa or el and that users rranty a warranty License Exception if t the Program is not required to print an hese requirements apply to the modified wo dentifiable sections of that work a nd can be reasonably considered hemselves then this License and 1 ections when you distribute them as istribute the same sections as part n the Program the distribution of T a t s d O the who t e ntire w Thus it is not the inte your rights to work writ exercise the right to co collective works based o n the Program n addition mere aggregation of ith the Program or wit storage or distributio he scope of this n mediu to fH License under Section 2 i se saying that y announcement rk as a whole I le must be on the his License whose permissions for other licensees extend to hole and thus to each and every part regardless of w nt of this section to claim rights or ten entirely by you rather the inte ntrol the distribution of derivative or But whe ou provide may redistribute the program under these conditions and telling the user how to view a copy of this he Program itself is interactive but does not normally print such an announcement your work based on f re not derived from the Program independent and separate wor ts terms do not apply to separate works of a whole which is a work based ks in those n
21. arguments are not available the executable name will be shown in brackets EXEC show uptime show processes top EOS User Manual 135 CHAPTER 2 CLICOMMANDS l show processes top Name Synopsis Description show processes top Show a dynamic real time view of system processes and CPU utilization show processes top Top runs interactively filling the terminal window with a dynamic display of system process and CPU utilization A variety of single character commands are available to modify the output Enter while show processes top is running for a help screen with all the supported commands Enter q or Ctrl C to exit and return to the Cli prompt The default columns in the process display consist of PID Process ID USER Effective username of the task s owner PR Priority of the task NI Nice value of the task VIRT Total amount of virtual memory used by the task kb RES Resident size the non swapped physical memory used by the task kb SHR Amount of shared memory used by the task kb S Process state D Uninterruptible sleep PR Running S Sleeping T Traced or stopped Z Zombie YoCPU Cpu utilization percentage Cpu time used by this process divided by the time the process has been running MEM Memory usage ratio Process resident memory usage divided by the total physical memory size TIME Cumulative CPU time for the task COMMAND The program name asso
22. host ip address hostname no logging host ip address hostname Description You can use this command in Global Configuration mode to configure the IP address or hostname of your Syslog server System log messages are then sent to this server in addition to being logged to the system buffer To configure the logging level of messages sent to the Syslog server please see the logging trap command Mode Global Configuration See Also logging trap show logging EOS User Manual 62 CHAPTER 2 CLICOMMANDS l logging level Name logging level Configure the logging level for a facility Synopsis logging level facility name severity no logging level facility name Description You can use this command in Global Configuration mode to configure the logging level of any of the system facilities The severity may be specified either as a number between 0 and 7 or as one of the keywords emergencies alerts critical errors warnings notifications informational or debugging The configured level is passed on to the software objects for the specified facility and various debug messages can be seen based on the set severity level The no form of the command reverts the logging level for the facility to the default value of 7 debugging Mode Global Configuration See Also show logging EOS User Manual 63 CHAPTER 2 CLICOMMANDS l logging on Name logging on Enable logging to all supported destinati
23. host without specified a hostname Global Configuration tacacs server key tacacs server timeout EOS User Manual 194 CHAPTER 2 CLICOMMANDS l tacacs server key Name tacacs server key Set the shared secret key used to communicate with TACACS servers Synopsis tacacs server key encryption key no tacacs server key Description The tacacs server key configuration command sets the shared secret key used to perform encryption when communicating with any TACACS server for which a different key has not been explicitly provided To communicate with multiple TACACS servers that each have a different key specify a server specific key when using the tacacs server host command To clear this key from the configuration use the no tacacs server key command Mode Global Configuration See Also tacacs server host EOS User Manual 195 CHAPTER 2 CLICOMMANDS l tacacs server timeout Name tacacs server timeout Set the maximum time to wait for a TACACS response Synopsis tacacs server timeout 7 7000 no tacacs server timeout Description The tacacs server timeout configuration command sets the timeout used when communicating with any TACACS server for which a different timeout has not been explicitly provided In the case of multiple TACACS servers in a redundant configuration the timeout will be used to decide when to fail over and attempt to communicate with another server If only a single TACACS s
24. i e the mode is not statically on then the physical interface may be one of the ports considered by LACP However LACP only considers a set of compatible ports show port channel limits displays the sets of architecturally mutually compatible ports Of the set of ports in a compatible set that are configured to be in the same port channel LACP will consider only interfaces that have the same attributes e g speed duplex Further LACP considers only active interfaces for example those whose link status is up show port channel will display information about interfaces that are part of the port channel but are not being considered as candidates by LACP By default we only print LACP information about ports that are actually bundled by LACP into the aggregate such ports have status Bundled If all ports is specified then we also print EOS User Manual 123 Mode See Also CHAPTER 2 CLICOMMANDS information about ports that are not part of the bundle but are considered as candidates by LACP Candidates for LACP aggregation may have status other than Bundled If LACP negotiated the port as a standby port then the status is Standby If we are still waiting for the remote LACP to return then the port status is In Negotiation Finally if LACP negotiated an aggregate for this port which differs from the primary aggregate for this port channel then there must be some mis configuration the a
25. in trunk mode the allowed VLAN set is the set of VLANs of which the interface is a member provided that those VLANs have been created with the vlan command Note that unlike the switchport access vlan command the switchport trunk allowed vlan command does not create the VLANs if they don t already exist The switchport trunk allowed vlan except vlanSet and switchport trunk allowed vlan all none forms of the command completely replace the previously configured allowed VLAN set The switchport trunk allowed vlan add remove vianSet form of the command modifies the previously configured allowed VLAN set The no and default forms of the command both revert the allowed VLAN set to the default value of all Note that the allowed VLAN set only has significance when the interface is in trunk mode as configured by the switchport mode trunk command If the interface is in access mode then the configured allowed VLAN set is stored in the running configuration but has no effect until the interface is put into trunk mode Interface Configuration EOS User Manual 191 CHAPTER 2 CLICOMMANDS See Also switchport mode switchport trunk native vlan vlan show interfaces switchport EOS User Manual 192 CHAPTER 2 CLICOMMANDS l switchport trunk native vlan Name Synopsis Description Mode See Also switchport trunk native vlan Configure the native VLAN for an interface in trunk mode switchport trunk nati
26. is to be enabled as arguments By default mirror sources are configured to mirror traffic in both directions An optional direction argument may be specified to restrict traffic to only one direction A mirror source can be a physical interface or a LAG Once an interface is a LAG member it inherits the mirroring configuration of its LAG If a LAG member is configured as a mirror source the configuration only takes effect when the interface is removed from the LAG If a interface is configured as a mirror source or destination in any session then the interface cannot be configured as a mirror source or destination in any other session The no forms of the command can be used to change direction of mirror source to both remove a source remove the destination or to remove the entire session monitor session monl source Ethernet1 Configures Ethernetl as a source in mirroring session mon1 monitor session monl destination Ethernet2 Configures Ethernet2 as the destination in mirroring session mon1 monitor session monl source Ethernet4 rx EOS User Manual 69 CHAPTER 2 CLICOMMANDS Configures Ethernet4 as an ingress only mirror source monitor session monl source Ethernetl tx Changes Ethernet to be an egress only mirror source no monitor session monl source Ethernetl tx Reverts Ethernetl to be a bidirectional mirror source default no monitor session monl source Ethernet4 Removes Ethernet4 as a mirror source Mode Glob
27. it in new free programs and that you know you can do these things To protect your rights we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights These restrictions translate to certain responsibilities for you if you distribute copies of the software or if you modify it EOS User Manual 213 CHAPTER 5 OPEN SOURCE LICENSES For example if you distribute copies of such a program whether gratis or for a fee you must give the recipients all the rights that you have You must make sure that they too receive or can get the source code And you must show them these terms so they know their rights We protect your rights with two steps 1 copyright the software and 2 offer you this license which gives you legal permission to copy distribute and or modify the software Also for each author s protection and ours we want to make certain that everyone understands that there is no warranty for this free software If the software is modified by someone else and passed on we want its recipients to know that what they have is not the original so that any problems introduced by others will not reflect on the original authors reputations Finally any free program is threatened constantly by software patents We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses in effect making the program proprietary To pr
28. the current aging time for MAC ad dress table entries The aging time may be configured with the mac address table aging time command Mode EXEC See Also mac address table aging time EOS User Manual 128 CHAPTER 2 CLICOMMANDS l show monitor session Name See Also Synopsis Description show monitor session Shows the configured mirror session show monitor session name The show monitor session command can be used to show all the mirror sessions currently config ured The command takes an optional argument name which filters the output of the command to only a paricular session Here is an example output from the command show monitor session session1 Session sessionl Source Ports Rx Only Et2 Tx Only Etl Both Et3 Inactive Et4 Interface Mode Conflict Destination Port Et6 In this output each mirror source is listed with the direction in which it is mirroring Interfaces that belongs to a channel group are marked as an inactive mirror source or destination monitor session EOS User Manual 129 CHAPTER 2 CLICOMMANDS l show ntp associations Name show ntp associations Display the current operating configuration Synopsis _ show ntp associations Description Displays the current operating configuration of the system as a sequence of configuration commands Mode EXEC See Also show ntp status EOS User Manual 130 CHAPTER 2 CLICOMMANDS
29. the full port name e g Et1 for Ethernetl The MAC address entries can be filtered by a number of options to the show mac address table command e If an entry type is specified the display shows only entries of that type Just dynamic entries show mac address table dynamic Just static entries show mac address table static Just multicast entries show mac address table multicast EOS User Manual 126 CHAPTER 2 CLICOMMANDS Entries corresponding to a specific VLAN are shown with the vlan argument show mac address table vlan 1 This shows all host entries learned on VLAN 1 Entries corresponding to a specific port on the device are shown with the interface argument show mac address table interface Ethernet1 This shows all hosts learned on Ethernet Entries corresponding to a specific MAC address are shown with the address argument show mac address table address 00 11 22 33 44 55 This shows all instances of the host 00 11 22 33 44 55 being learned on any port or VLAN To show just a summary count of addresses in the table use the count argument show mac address table count Mode EXEC See Also vlan EOS User Manual 127 CHAPTER 2 CLICOMMANDS l show mac address table aging time Name show mac address table aging time Display the configured MAC address table aging time Synopsis show mac address table aging time Description The show mac address table aging time command displays
30. tree root Display a summary of the spanning tree protocol information for the root bridge of the network Synopsis show spanning tree root Description The show spanning tree root command displays a summary of the spanning tree protocol informa tion for the current root bridge of the network for each spanning tree protocol instance The switch currently supports only one instance so the list is somewhat short Here is an example of the command output localhost show spanning tree root Root ID Root Hello Max Fwd Instance Priority MAC addr Cost Time Age Dly Root Port Rstp 32768 001c 7301 0089 000000000 2 20 15 None Mode EXEC EOS User Manual 156 CHAPTER 2 CLICOMMANDS l show spanning tree root detail Name show spanning tree root detail Display a detailed description of the spanning tree protocol information for the root bridge of the network Synopsis show spanning tree root detail Description The show spanning tree root detail command displays a detailed description of the spanning tree protocol information for the current root bridge of the network for each spanning tree protocol instance The switch currently supports only one instance so the list is somewhat short Here is an example of the command output localhost show spanning tree root detail Rstp Root ID Priority 32768 Address 001c 7301 0089 This bridge is the root Mode EXEC EOS User Manual 157 CHAPTER 2 CLICOMMANDS l show spanning tree
31. you terms of the ho wrote it contest nt is to another work not based on the Program h a work based on the Program n does not bring the other work under on a volume of 3 You may copy and distribute the Program or a work based on it n object code or executable form under the terms of Sections 1 and 2 above provided that you also do one of the following a Accompany i source code W with the complete corresponding machine readable hich must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange or b Accompany i EOS User Manual with a written offer valid for at least three 215 CHAPTER 5 OPEN SOURCE LICENSES years to give any third party for a charge no more than your cost of physically performing source distribution a complete machine readable copy of the corresponding source code to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange or c Accompany it with the information you received as to the offer to distribute corresponding source code This alternative is allowed only for noncommercial distribution and only if you received the program in object code or executable form with such an offer in accord with Subsection b above The source code for a work means the preferred form of the work for making modifications to it For an executable work complete sour
32. 0 ca eR ER ee Rw ee we Sy 110 Show intermaces Switchpart DAGKUIP o secco ee RY ERR ERE ee eS 111 show interfaces transceiver properes gt o s co casos EX SERS SES ORAS OER SER RO 113 BROW IESO cd POG ee SRE RE ERS a ee eee Se Re Pe 114 SHOW Ip igmp SMOOPUIS gc kc eek Ee we ER Re SR Se kG Me ee he bb Rees 115 SHOW Ip HAP Shoping tO ca ii A A eR AGE Be RG ES 116 show IP TEMP snooping BF oi e a AE A ee eR EAR SY A 117 shov IPOD o eita rr EM BODE AA bits BA ees 118 show Ip igmp SNOOP QU fk eek eee eS Leads 119 Show ip TEMP shooping QU ccoo a we Eee eR ae ee ew 120 e eoe ea a ae ee eee Pee eee PE ee 121 SOW IP TOWE 66 ce a tee a eS Oe E Cae a oe SS ee ee eS 122 Brew IAG onc ee a eR a ds SRE RE ERE AEE Ew eR ER Eee Be REE 123 Reve IGE BIE cio a SA ee as SE E e SE A es SR ee eee Le A 125 show maras ble xs oi Ge e A Re Re Re eR AG RG Bs 126 show mac address table aging time ee ee 128 SHOW mMOMiOr SESSION iaa iaa o Aa ee a AG ee he ee he A ASS 8 129 Showy nip ASSOCIAMONE lt lt o o oe eee eee hs Lh he eee ees 130 Ry TURES ec Sgt A ERR RS ESS PHBE A ie WEE a SG 131 el AAA 132 show port chanmel limits eoo ou Shae aE ra a a a Eee a 133 Slow Privilefe 3 coe PR dd OE Ae be eae eee Phe bees 134 A eS Ree a woe Ae 135 Boy praCesses TOP a aa Ge ae GA Gb eee Oe Ee OK wR Ee dee eee ES 136 Bow DIES EOL o a SO we a A ew ES ae Rh es ae A 138 SHOW IMI O COMNS merate 2 aca A ee a A ee ha ee ee ASS G 139 SHOW SAMD ic bb cea eee eee SA ee ee cake Bee hae e
33. 0089 Designated port id is 128 2 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 1 Link type is point to point by default Internal BPDU sent 136064 received 0 taggedErr 0 otherErr 0 Port 3 Ethernet3 of Rstp is designated forwarding Port path cost 2000 Port priority 128 Port Identifier 128 3 Designated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301 0089 Designated port id is 128 3 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 1 Link type is point to point by default Internal BPDU sent 136064 received 0 taggedErr 0 otherErr 0 EOS User Manual 152 Port 24 Ethernet24 of Rstp is backup discarding CHAPTER 2 CLICOMMANDS Port 4 Ethernet4 of Rstp is designated forwarding Port path cost 2000 Port priority 128 Port Identifier 128 4 Designated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301 0089 Designated port id is 128 4 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 1 Link type is point to point by default Internal BPDU sent 136064 received 0 taggedErr 0 otherErr 0 Port 20 Ethernet20 of Rstp is designated forwarding Port path cost 2000 Port priority 128 Port Identifier 128 20 Des
34. 2k ke A ee OS AR Bee See AA e A 55 BCP port pron cy ee RRR eee e A A ee eee Tee ES 56 DEPTI ok koe ede oe bee eek ae whee Ee bea eee eb ee dew ee eee 57 ea IN 58 IA a ARE A ee A A A DR e ee 59 ra a E SN NN Manes 60 ESMAS o AA AAA A e EA 61 LOTUS SE ici ea ha IA ae we a eld e AA AA 62 a ce ne Pe a ee ee ee be ee ee eee eee eee 63 IGS CN oe Se wa Re a he ee A ae Ee al E SE bee ae eas 64 gona WE es ad PRR a a DRE RE ERE ERE De RS eee Te Es 65 OE foes YR ee a amp FOE Re Ge SE A es Se AROS ee 66 maccaddress table SEIS IDE 2 0 a A RR a ee Ae Be SS eS 67 DRUI so Gh dare Ge aids Bae eG Geb ote ae A BG OS Ee Oe ed ee ceed 68 ONO SESSION ccc ae Re a a Re Dae a A ee Ree Oh ae BS Ges 69 MMO Ok a Ee ee eee oe A ee A eS 71 CW oe eke de ee ee ass e US aed Sy ER ae RADA A Re oe O eS 72 OPE a eae Ob eA eho we Ge A eS Bo ee Oe eG 73 ME ea A Cal ee ea ROR Ea EO Bee be a oe eS 74 PINE bk abe hee A SA ee ee ee BA eee ae Phew bea o 75 POMPE ee yoi eiee Wa ee eae G SR ee ow an GS ee ae ee ee ae Bee 76 A ese hy Ge ee ec ee ee ae ae ee ee oe ae at ee Ge 77 POG A ARAN 78 CAS A A Bey E E A E Geta AE AA te A 79 OMS ls a eee bee ee a a a a dd e e eed 80 EOS User Manual iii CONTENTS Service SEQUCHOS MUMbEM lt o sake o de Ae ae ee Pe ee 81 SHOW ATEN 82 Slvigw gaa method UATE nu ono s Ge a ee OA eS Be Cae ee Seb ede ee od ES 83 RW ie RESISTE A A ee OE A a oe A ee 84 show EOOECOUDE nro Se a ee BR RK PRE ERS AS we ee eee Se Re Pe 85 SHOW DOULCKIENSION
35. 7 CHAPTER 2 CLICOMMANDS l show ip igmp snooping mr Name show ip igmp snooping mrouter Show multicast router status Synopsis show ip igmp snooping mrouter vlan vlanld detail Description This command can be used to see the status of multicast routers along with their details The list can be filtered by specifying a vlanld See Also ip igmp snooping vlan mrouter show ip igmp snooping querier EOS User Manual 118 CHAPTER 2 CLICOMMANDS l show ip igmp snooping qu Name show ip igmp snooping querier Show multicast querier status Synopsis show ip igmp snooping querier vlan vianld detail Description This command can be used to see the multicast queriers along with their details The list can be filtered by specifying a vlanId See Also show ip igmp snooping mrouter EOS User Manual 119 CHAPTER 2 CLICOMMANDS l show ip igmp snooping qu Name show ip igmp snooping querier status Show switch layer 2 querier status Synopsis show ip igmp snooping querier status vlan vlanld Description This command can be used to see the configuration and operational status of layer 2 querier on the switch The list can be filtered by specifying a vlanId See Also ip igmp snooping querier EOS User Manual 120 CHAPTER 2 CLICOMMANDS l show ip interface Name show ip interface Show IP information for an interface Synopsis show ip interface interface Descrip
36. ARISTA EOS User Manual Software Release 4 0 1 April 8 2009 http www aristanetworks com email support aristanetworks com EOS User Manual Contents 1 Upgrade Procedure 1 2 CLI Commands 4 Interface Range Syntax o co sope eas Bh eb ob ae Ree dea WE OE EEE eo 5 aag DUENUC AON enable e e oe dd EA ENG AAA E DEORE EY HUE a ea 6 o o o o ee o a aoea a eR ee aE T A R a 7 ARA ADIUEAON Ele Bh ee A Ghee aes RAO a aa A te Bees 8 aaa authorization config commands 2 sr ecetes et eeure tro 9 ada BIOUP SIVE A a ew bee eM eee ed ee ee ee ee 10 Danner loii e ee ek ae ea bee ee eee eee ee eee a 11 ENE Mad sucio a ee RS By Ge a OA Be ee E ee Ss Sw 12 OGRE REI sus dos a Fao ck ee de ER a oie bn eR ww eR we ARE 13 DO ee hte Sere Be ls th ee ern eo bree ean Bp Be Sheed be ep ee a eae 14 MINI AA 15 clear aaa counters tacas oo oco ee eR ke ER Ree Ee De a eee 16 CaS eet ink BOR ed ES Ea ee Hate BRS aed E eee ey a ap es 17 clear mac pddress tablexiwmamiic cicle eee ees Ree E aed 18 CORE spanning mee counie ea the ee RE gs OK Ae ee ewe eee Se Od Hoe eae S 19 clear spanning tres counters SESSION ek a ee 20 clear spanning tree detected protocols ee 21 A A IN A PRA ae OA ee ed ee ee 22 CONTENTS ClOCK NMEN ceo A ek ee aA ek ee de ede Pee 23 CONDENSA oia ba ee ala de ee a ee wa eee ee ea eee 24 o s o gn ob ek ee ees Ge ae ee OA a a ee Soe Be Oe ee be a oe ee Goes Bs 25 COPY cons we By eo ee ee RR ee Se Ge oe te ee Ew ee
37. Description Displays a listing of the communities that have been configured for the SNMP agent Mode EXEC See Also snmp server community EOS User Manual 141 CHAPTER 2 CLICOMMANDS l show snmp enginelD Name show snmp engineID Displays the SNMP agent s engineID Synopsis show snmp engineID Description Displays the SNMP agent s engineID which is used for SNMPv3 authentication Mode EXEC See Also snmp server engineID EOS User Manual 142 CHAPTER 2 CLICOMMANDS l show snmp group Name show snmp group Display details of the configured SNMP groups Synopsis _ show snmp group Description Displays a listing of the groups that have been configured for the SNMP agent Mode EXEC See Also snmp server group EOS User Manual 143 CHAPTER 2 CLICOMMANDS l show snmp host Name show snmp host Display details of the configured SNMP trap destination hosts Synopsis _ show snmp host Description Displays a listing of the hosts that have been configured to receive traps or informs from the SNMP agent Mode EXEC See Also snmp server host EOS User Manual 144 CHAPTER 2 CLICOMMANDS l show snmp user Name show snmp user Display details of the configured SNMP users Synopsis show snmp user Description Displays a listing of the users that have been configured for the SNMP agent
38. Erase the contents of the startup configuration Synopsis erase startup config Description Erase the contents of the startup configuration file flash startup config if it exists Mode Privileged EXEC See Also startup config EOS User Manual 38 CHAPTER 2 CLICOMMANDS l errdisable recovery cause Name errdisable recovery cause Enable the errdisable recovery for a cause Synopsis errdisable recovery cause bpduguard no errdisable recovery cause bpduguard default errdisable recovery cause bpduguard Description The errdisable recovery cause command enables the errdisable recovery timer for the specified cause The no and default forms of the command reverts back the errdisable recovery for the cause to the default disabled setting Mode Global Configuration See Also show errdisable recovery show interfaces status errdisabled errdisable recovery interval EOS User Manual 39 CHAPTER 2 CLICOMMANDS l errdisable recovery interval Name errdisable recovery interval Configure the errdisable recovery timer interval Synopsis errdisable recovery interval seconds no errdisable recovery interval default errdisable recovery interval Description The errdisable recovery interval command configures the errdisable recovery timer interval The interval value may be between 30 to 86400 seconds The no and default forms of the command reverts the timer interval to the default value of 300 secon
39. Es LAER Bh A E ES 188 MARCHA IIE os or Gk ae SS BORE Bie EG AAA REE Ee BEY a RES 190 switchport tmk allowed vlan es ocean N 191 SWitchport tank tative vlati eos o Ce a a e a o a N 193 TACA SEUS OSE on EA eR e e RA a Oe eae e Chae a E N 194 a a oeoc ae Ge ee ad E a Sw a SAS ee SE ee ca ee e A 195 TCAUS SeTVEr EGEL Gb ee we be ema ee bh ba dm ee oe b SG 196 Me MOE see Se By lorcet RN 197 terana RAE ooo a Bee eels ROG eg E A A ee eee a BS 198 OM a a hae eb aoe oe ee bbe e SO OE bh a aes 199 EOS User Manual vii CONTENTS sename SECTS kkk es ee a a a a Be we Pe e N 200 RAD ss ci AA Be ok Bee GO al ER eee eo ee ee bt oe eS 201 DORIS ccs Sole a es ety hy SEN oe hy me ae oe any bee Gets eee aye A a ve oe ee Ge 202 3 File Formats 203 TUI ORRE EA ae DA ee eh RAE EE Ae eee ee ba 204 STPS 6 6 54 bo ee beads ee ER ee eR Se ER ee ea ee Ee ee A Ew oe Y 205 4 Aboot 206 5 Open Source Licenses 213 EOS User Manual viii CHAPTER 1 UPGRADE PROCEDURE Chapter 1 Upgrade Procedure UPGRADE DOWNGRADE PROCEDURES The active EOS image on an Arista Networks switch can be modified via the boot system command Using this command you can select an image file and location from flash allowing the switch to be easily upgraded or downgraded to any desired image Modifying the active EOS image on an Arista Networks switch is a four step process Use copy to transfer the image file onto the switch if the image already exists on the switch this s
40. Ethernet2 forwards vlans 11 20 while blocking vlans 1 10 If either of the interfaces goes down the other takes over forwarding the failed interface s vlans The upstream switches connected to the interfaces in the backup interface pair should normally continue to run the Spanning Tree protocol They can be configured as edge ports or portfast ports to ensure that the interfaces become forwarding quickly when one of the interfaces goes down and then comes back up again EOS User Manual 188 CHAPTER 2 CLICOMMANDS Mode Interface Configuration EOS User Manual 189 CHAPTER 2 CLICOMMANDS l switchport mode Name Synopsis Description Mode See Also switchport mode Set the switching mode of an interface switchport mode access trunk no switchport mode default switchport mode The switchport mode command configures an interface to be in one of the two possible switching modes access or trunk In access mode the interface is a member of precisely one VLAN called the access VLAN which is configured using the switchport access vlan command Untagged frames received on the interface are associated with the access VLAN Tagged frames received on the interface are dropped unless they are tagged with the access VLAN Frames sent over the interface are always untagged In trunk mode the interface may be a member of many VLANs the set of VLANs is config ured using the switchport trunk allowed vlan comand
41. IP domain of the system Synopsis ip domain name string no ip domain name Description This configuration command can be used to configure the domain name of the system such as aristanetworks com Once the domain name is set hostnames used in other commands such as copy or ping do not need to be fully qualified When using this command you also need a nameserver setup so that name resolution can be per formed Mode Global Configuration See Also ip name server EOS User Manual 47 CHAPTER 2 CLICOMMANDS l Name ip igmp snooping Configure IGMP snooping Synopsis no ip igmp snooping no default ip igmp snooping vlan vlan range Description This command can be used to enable or disable igmp snooping globally or for a particular vlan or vlan range The effective snooping state of a vlan is determined by the combination of vlan snooping state and global snooping state Mode Global Configuration See Also show ip igmp snooping EOS User Manual 48 CHAPTER 2 CLICOMMANDS ip igmp snooping querier Name ip igmp snooping querier Configure multicast querier properties Synopsis no ip igmp snooping querier Description Mode no default ip igmp snooping vlan vian range querier ip igmp snooping querier vlan vlan range querier query interval seconds no ip igmp snooping querier vlan vlan range querier query interval ip igmp snooping querier vlan vlan range querier max respon
42. MANDS l show boot extensions Name show boot extensions Display EOS extension boot configuration Synopsis show boot extensions Description Displays which extensions will be installed when EOS boots The extensions are listed in the order in which they will be installed The boot extensions file has the same format as the output of the show installed extensions command This makes it possible to install one or more extensions then run the command copy installed extensions boot extensions to cause the set of currently installed extensions to be reinstalled after a reboot Mode Privileged EXEC See Also show installed extensions show extensions EOS User Manual 86 CHAPTER 2 CLICOMMANDS l show clock Name show clock Display the current time and configured timezone Synopsis show clock Description Displays the current system time and timezone The system clock is used to generate timestamps for system log messages and other debugging traces Mode EXEC See Also clock set clock timezone ntp server EOS User Manual 87 CHAPTER 2 CLICOMMANDS show environment all Name Mode Synopsis Description See Also show environment all Display all environment status of the system show environment all Displays all available environment status EXEC show environment cooling show environment temperature EOS User Manual 88 CHAPTER 2 CLICOMMANDS l
43. Mode EXEC See Also snmp server user EOS User Manual 145 CHAPTER 2 CLICOMMANDS l show snmp view Name show snmp view Display details of the configured SNMP views Synopsis show snmp view Description Displays a listing of the access control views that have been configured for the SNMP agent Listed with each view are the object identifier trees that are included or excluded from that view Mode EXEC See Also snmp server view EOS User Manual 146 CHAPTER 2 CLICOMMANDS l show spanning tree Name Mode Synopsis Description show spanning tree Display a summary of the spanning tree protocol state show spanning tree The show spanning tree command displays a summary of the state of the spanning tree protocol running on the switch For more details use the show spanning tree detail command Here is an example of the command output Rstp Spanning tree enabled protocol rstp Root ID Priority 32768 Address 001c 7301 0089 This bridge is the root Bridge ID Priority 32768 priority 32768 sys id ext 0 Address 001c 7301 0089 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role State Cost Prio Nbr Type Et1 designated forwarding 2000 128 1 P2p Et2 designated forwarding 2000 128 2 P2p Et designated forwarding 2000 128 3 P2p Et4 designated forwarding 2000 128 4 P2p Et20 designated forwarding 2000 128 20 P2p Et24 backup discarding 2000 128 24 P2p In this
44. P on the interface in active mode mode passive enables LACP on the interface in passive mode To remove an interface from a port channel use the no form of this command Care must be taken when configuring an interface to be in a channel group with mode on If several interfaces in the same port channel are configured with mode on then it is required that all of these interfaces are physically connected to the same neighboring switch Further these interfaces must be configured to belong to a single port channel on the neighboring switch as well If these conditions are not met then the pair of switches are misconfigured This unconditional static configuration disables LACP and so the switch will not verify or negotiate the port channel membership Be careful to disable the unconditional port channel membership be fore moving any cables connected to these interfaces or changing a static port channel membership on the remote switch Interface Configuration interface port channel show port channel show port channel limits EOS User Manual 15 CHAPTER 2 CLICOMMANDS l clear aaa counters tacacs Name clear aaa counters tacacs Clear the TACACS status counters Synopsis clear aaa counters tacacs Description Resets all TACACS status counters to zero Clearing these counters only affects the values reported by show tacacs and does not change inter action between the switch and TACACS servers Mode Privileged EXEC
45. S roc ek A a a ee ee Ae ew ea eee 86 AITANA Oe Dh eae he de es we ate enon 8 87 show environment all mess EB hee ee OE ARSE AS we A 88 show ENFIONMENEGGIAL o 244 0 eee Me eek we Eee OE BO DES he Rae Ee de ds 89 show Environment POWEF ooo ook e LAA hee ee eee Pea aS 90 Show environment temp rat te occ ea e ea e eee wa 91 Show eridisabledstect se ea He we ee ee ee ee ee E e e ee ba a 92 Show enidisabl gecovery oo Se we ee ER ee SS Cea Ee SES ee ae ee as 93 IRE AA a owe ee ae RA oe ew eR ee eo ee Oe 94 SOW a A Se A ee ae eS De ee oe SS ee ee EE 95 dl O RR Ae AM Bl ee 96 SHOW TE SYMCIMIG 2 peu s ee ta DEA She eh ee eS ee ake ee ee 97 SUSO REGIO oi a a Be A ee Ae ee OR he So Pe a Se 98 A II ci ERE ees EERE LEER A E 99 show mstalled extensiong ks Bd A RR Da Be Ree Ea SRS Die OE Da E RS 100 SHOW INIEIIBCES a cr ee dc a eA A eo eR ee A A EE OED Lea eS 101 show Interfaces capabilities oo occiso ted a ES a ew eS 102 SHOW interfaces COUNTIES O56 A ve ae Re ew Awe be ea ESD Cea we bb eo 103 Show Interfaces counters BINS ooo hc a ee ew ee Se Se ee eS RR 104 SliOW Interfaces Counters SO coc ck ek RY A eR RET ee ES 105 show Interfaces HESCUIBION lt a SO we Se a a Re ee E ee OR O 106 show interfaces flowcomttol oo e a Se a ae G 107 Show interfaces Status o oa a het a a ee a eee Bee heehee kk eb eee aed 108 EOS User Manual iv CONTENTS show interfaces status endisabled lt o o e ee a ee ee 109 Show interfaces SWitchport
46. TER 2 CLICOMMANDS l spanning tree portfast auto Name spanning tree portfast auto Set the value of the spanning tree protocol AutoEdge parameter for the interface Synopsis spanning tree portfast auto no spanning tree portfast auto Description spanning tree portfast auto is enabled by default The command sets the spanning tree protocol AutoEdge parameter to true and the no form of the command sets it to false When spanning tree portfast auto is enabled the spanning tree protocol automatically determines whether another bridge running the spanning tree protocol is connected via the interface If the protocol determines that there is no such bridge the interface is made an edge port This is the same whether the spanning tree portfast command has set the AdminEdge interface parameter to true or false To disable automatic edge port detection for the interface use the no spanning tree portfast auto command Mode Interface Configuration EOS User Manual 183 CHAPTER 2 CLICOMMANDS l spanning tree priority Name spanning tree priority Set the value of the spanning tree protocol bridge priority parameter Synopsis spanning tree priority priority no spanning tree priority Description The priority parameter defaults to 32768 The command accepts a value in the range from 0 to 61440 seconds The value must be a multiple of 4096 The spanning tree protocol specifies that numerically lower bridge priority values are b
47. WI file from path on local storage device device device defaults to flash mnt device path mnt flash EOS swi Boots a SWI file from path on local storage device device http server path http foo com images EOS swi Downloads a SWI file from path on the HTTP server on host server ftp server path ftp foo com images EOS swi Downloads a SWI file from path on the FTP server on host server tftp server path tftp foo com EOS swi Downloads a SWI file from path on the TFTP server on host server nfs server path nfs foo com images EOS swi Mounts the parent directory of path exported from host server and boots the SWI file path EOS User Manual 208 CHAPTER 4 ABOOT Navigating the Aboot Shell Aboot is based on Linux and the Aboot shell is similar to the Bourne Shell sh and Bourne Again Shell bash on Linux operating systems If you have used Linux or other flavors of UNIX before you will find the shell interface familiar Some of the most commonly used commands include 1s Prints a list of the files in the current working directory cd Changes the current working directory cp Copies a file more Prints the contents of a file one page at a time vi Edits a text file boot Boots a SWI see SWI section for information on specifying a SWI swiinfo Prints information about a SWI recover Recovers the factory default configuration reboot Reboots the switch udhcpc Configures a n
48. accessed from the Aboot shell or if an Aboot password has been set and you enter an incorrect password three times in a row while attempting to enter the Aboot shell Restoring User Defined State Aboot can automatically erase the internal flash and repopulate it with the contents of a USB key that has been inserted before powering up or rebooting the switch This recovery method does not require you to access to the switch console or enter the Aboot password if one is currently set Aboot invokes the recovery mechanism only if two conditions are met e the USB key must contain a file called full recover the file s contents are ignored an empty text file is sufficient and e if the USB key contains a file called boot config its timestamp must differ from the times tamp of the boot config file on the internal flash this prevents Aboot from invoking the recovery mechanism again on every boot if you leave the flash key inserted To use this recovery mechanism set up a USB key with whatever files you want installed on the internal flash for example a current EOS SWI and a customized or empty boot config plus an empty file called fullrecover Check that the timestamp of boot config is current to ensure that tbe above conditions are met EOS User Manual 212 CHAPTER 5 OPEN SOURCE LICENSES Chapter 5 Open Source Licenses Portions of Arista Networks EOS and Aboot are distributed under the terms of the GNU Gen eral Public
49. actions are prohibited by law if you do not accept this License Therefore by modifying or distributing the Program or any work based on the Program you indicate your acceptance of this License to do so and all its terms and conditions for copying distributing or modifying the Program or works based on it 6 Each time you redistribute the Program or any work based on the Program the recipient automatically receives a license from the original licensor to copy distribute or modify the Program subject to these terms and conditions You may not impose any further restrictions on the recipients exercise of the rights granted herein You are not responsible for enforcing compliance by third parties to this License 7 If as a consequence of a court judgment or allegation of patent EOS User Manual 216 CHAPTER 5 OPEN SOURCE LICENSES infringement or for any other reason not limited to patent issues conditions are imposed on you whether by court order agreement or otherwise that contradict the conditions of this License they do not excuse you from the conditions of this License If you cannot distribute so as to satisfy simultaneously your obligations under this License and any other pertinen may not distribute the Program license would not permit royal all those who receive copies d the only way you could satisfy refrain entirely from distribu If any portion of this section any particular circumstance
50. add features to EOS or even modify built in EOS features Arista Networks cus tomers and partners may develop their own extensions using the EOS SDK Specify the detail option to display more information about each installed extension Mode Privileged EXEC See Also show loaded extensions EOS User Manual 95 CHAPTER 2 CLICOMMANDS l show file information Name show file information Displays the type of a file Synopsis show file information url Description Displays type of url Type of a file could be directory or a file You can use the more command to display contents of a text file Mode Privileged EXEC See Also more EOS User Manual 96 CHAPTER 2 CLICOMMANDS l show file systems Name show file systems List all filesystems Synopsis show file systems Description Displays information about all local and network filesystems in alphabetical order The information presented for each filesystem comprises in this order the capacity of the filesystem in bytes the amount of free space on the filesystem in bytes the type of the filesystem the filesystem flags and the filesystem URL prefix Mode Privileged EXEC EOS User Manual 97 CHAPTER 2 CLICOMMANDS l show flowcontrol Name show flowcontrol Display the interface flowcontrol information Synopsis show flowcontrol interface interface Description This command displays the flowcontrol details for the spec
51. al Configuration See Also show monitor session EOS User Manual 70 CHAPTER 2 CLICOMMANDS l more Name Synopsis Description Mode See Also more Display the contents of a file more url Displays the contents of url Privileged EXEC show file information EOS User Manual 71 CHAPTER 2 CLICOMMANDS l Name mtu Configure mtu on specified interface Synopsis mtu mtu value Description This command configures the MTU for the specified interface The mtu command is currently supported only for Vlan and Management interfaces The current MTU value for an interface can be seen via the show interfaces command Mode Privileged EXEC See Also show interfaces EOS User Manual 72 CHAPTER 2 CLICOMMANDS l ntp server Name ntp server Configure an NTP server Synopsis ntp server ip address hostname Description Allows the configuration of a Network Time Protocol server to synchronize the switch clock with an external time source Mode Global Configuration See Also show ntp status show ntp associations EOS User Manual 73 CHAPTER 2 CLICOMMANDS NZ Name nz Filter out show command lines where all counters are 0 Synopsis nz Description You can use the nz command as a filter after a on the output of show commands that display tables of counters to leave out lines where all of the counters are zero Lines that contain no counters such
52. and ssh connections To configure the login banner hit enter after the banner login command and begin entering the desired message The login banner may span multiple lines To end the login banner type EOF on its own line and hit return Certain keywords can be used to display attributes of the switch The following keywords are sup ported e hostname Displays the host name for the switch Mode Global Configuration See Also banner motd EOS User Manual 11 CHAPTER 2 CLICOMMANDS l banner motd Name banner motd Configure the Message of the Day banner Synopsis banner motd no banner motd Description Defines a customized message displayed after login The motd applies to console telnet and ssh connections To configure the motd hit enter after the banner motd command and begin entering the desired message The motd may span multiple lines To end the motd type EOF on its own line and hit return Certain keywords can be used to display attributes of the switch The following keywords are sup ported e hostname Displays the host name for the switch Mode Global Configuration See Also banner login EOS User Manual 12 CHAPTER 2 CLICOMMANDS l boot system Name boot system Select system boot software image Synopsis boot system flash file path boot system usb1 file path Description The boot system command can be used to configure the software image that
53. anning tree counters Name clear spanning tree counters Clear spanning tree BPDU counters in all CLI sessions Synopsis clear spanning tree counters interface interface Description The clear spanning tree counters command resets the BPDU counters for the specified interface or for all interfaces if none is specified to zero values in all CLI sessions Mode Privileged EXEC See Also clear spanning tree counters session show spanning tree counters EOS User Manual 19 CHAPTER 2 CLICOMMANDS l clear spanning tree counters session Name clear spanning tree counters session Clear all spanning tree BPDU counters in the current CLI session Synopsis clear spanning tree counters session Description The clear spanning tree counter session command resets the BPDU counters to zero values on all interfaces in the current CLI session Counters in other CLI sessions are not affected Mode Privileged EXEC See Also clear spanning tree counters show spanning tree counters EOS User Manual 20 CHAPTER 2 CLICOMMANDS l clear spanning tree detected protocols Name clear spanning tree detected protocols Restart the spanning tree protocol migration state ma chine on the selected interface or all interfaces Synopsis clear spanning tree detected protocols interface interface Description The clear spanning tree detected protocols command restarts the spanning tree protocol migration state machine on t
54. ation command sets the options used when communicating with a particular TACACS server The hostname or address argument can be either the IP address or the DNS hostname of the TACACS server To use a DNS hostname you must have previously configured a nameserver using the ip name server command It may be preferable to use an IP address since TACACS authentication will fail if the hostname cannot be resolved at the time of a login Use the single connection argument to indicate that the TACACS server supports multiplexing multiple sessions on the same TCP connection Provide the port argument if the TACACS server is running on a non standard port If port is not specified the standard TACACS port 49 is used Each server is identified by the combination of its hostname and port so it is possible to configure multiple servers listening on the same IP address if each server is listening on a different port number To use a different timeout value or encryption key than the global values specified using tacacs server timeout or tacacs server key commands you may provide the timeout or key argument The globally configured values will be used if these arguments are not provided To remove a single TACACS server from the configuration use the no tacacs server host hostname or address command and also provide a port argument for servers not using the default port number To remove all TACACS servers from the configuration use no tacacs server
55. ays a summary of all interfaces and their description This is useful when you want to re member where each interface is connected to and have described an interface using the description command in interface configuration mode Mode EXEC See Also description Interface Range Syntax EOS User Manual 106 CHAPTER 2 CLICOMMANDS l show interfaces flowcontrol Name show interfaces flowcontrol Display the interface flowcontrol information Synopsis show interfaces interface range flowcontrol Description This command displays the flowcontrol details for the specified range of interfaces or for all inter faces if no range is specified The output shows the configured and operating flowcontrol information for rx and tx directions of the interface s This command is identical to show flowcontrol Mode EXEC See Also show flowcontrol Interface Range Syntax EOS User Manual 107 CHAPTER 2 CLICOMMANDS l show interfaces status Name show interfaces status Display a summary status of interfaces Synopsis show interfaces interface range status Description The command displays status of the specified range of interfaces or for all interfaces if no interface range is specified The status shows the interface name link status vlan current speed and duplex The output of show interfaces is more detailed and show interfaces status is a good way of getting a summary of the operational status
56. cally configured enable password on the switch The default configuration is to use only the local enable password The supported authentication methods are local none and group group name The group name can either be the special keyword tacacs to indicate the server group composed of all configured TACACS servers or it can be the name of a group configured by the aaa group server command The no aaa authentication enable default command reverts the authentication method list config uration for the enable command to the default configuration i e local Global Configuration enable secret aaa group server aaa authentication login EOS User Manual 6 CHAPTER 2 CLICOMMANDS l aaa authentication login Name Synopsis Description Mode See Also aaa authentication login Set authentication method lists for logins aaa authentication login default service name method 1 method 2 method n no aaa authentication login default service name An authentication method list controls which authentication methods are invoked in which order to authenticate a user for a certain service For example you may wish to attempt to authentication against a TACACS server but if that server is unavailable fall back to the locally configured user database on the switch The special keyword default is used to configure the method list for any service for which no method list has been explicitly configured T
57. ce code means all the source code for all modules it contains plus any associated interface definition files plus the scripts used to control compilation and installation of the executable However as a special exception the source code distributed need not include anything that is normally distributed in either source or binary form with the major components compiler kernel and so on of the operating system on which the executable runs unless that component itself accompanies the executable If distribution of executable or object code is made by offering access to copy from a designated place then offering equivalent access to copy the source code from the same place counts as distribution of the source code even though third parties are not compelled to copy the source along with the object code 4 You may not copy modify sublicense or distribute the Program except as expressly provided under this License Any attempt otherwise to copy modify sublicense or distribute the Program is void and will automatically terminate your rights under this License However parties who have received copies or rights from you under this License will not have their licenses terminated so long as such parties remain in full compliance 5 You are not required to accept this License since you have not signed it However nothing else grants you permission to modify or distribute the Program or its derivative works These
58. change the global configuration or enter an interface configuration or some other sub mode All changes made in the configuration mode are applied to the running configuration Once within the global configuration mode you can use the exit command or use Ctrl Z Mode Privileged EXEC See Also enable EOS User Manual 24 CHAPTER 2 CLICOMMANDS l connect Name connect Connect to another host Synopsis connect hostname connect hostname port number Description Connect to another host using telnet or any other protocol The hostname can either be the host name or the IP address of the host The second argument port number is optional and is the port number for the specific protocol The common protocols such as telnet smtp http are also available as choices You can use the connect hostname command to see a complete listing of available protocol choices Mode EXEC See Also telnet EOS User Manual 25 CHAPTER 2 CLICOMMANDS l copy Name Synopsis Mode See Also Description copy Copy a file copy source url destination url Copies source url to destination url If destination url already exists it is overwritten If destination url is a directory source url is copied into that directory with the same name Either or both of source url or destination url may be one of the special keywords running config or startup config which are equivalent to the URLs system run
59. ciated with starting the task EOS User Manual 136 CHAPTER 2 CLICOMMANDS Mode EXEC See Also show uptime show processes EOS User Manual 137 CHAPTER 2 CLICOMMANDS l show running config Name Mode Synopsis Description See Also show running config Display the current running configuration of the system show running config diffs Displays the current operating configuration of the system as a sequence of configuration commands To save the running config you can use the copy command copy running config startup config Specifying diffs causes the differences with the startup configuration to be displayed in unified diff format the same as diff startup config running config Privileged EXEC running config show startup config copy diff EOS User Manual 138 CHAPTER 2 CLICOMMANDS l show running config interface Name Mode Synopsis Description show running config interface Display the current running configuration of an interface or set of interfaces show running config interface name pattern name pattern This command displays the current operating configuration of interfaces matching the given inter face name pattern or patterns The name patterns can be full or abbreviated interface names interface name ranges or regular expressions For example to display the configuration for interface Ethernet use the command show running config interface Et
60. command to enter the Privileged EXEC mode You may specify an optional privilege level from O to 15 If not specified the enable command defaults to authenticating the session to level 15 A session with any privilege level greater than 1 is considered to be in Privileged EXEC mode By default EOS is configured to authenticate the enable command using the local database in which case you must enter the enable password if it has been set If you have configured EOS to use a different authentication method the enable command will invoke that other method Mode EXEC See Also show aaa show privilege enable secret EOS User Manual 34 CHAPTER 2 CLICOMMANDS l enable secret Name enable secret Set password for privileged mode access Synopsis enable secret 0 password enable secret 5 encrypted password no enable secret Description Set the password required to enter privileged EXEC mode when the enable authentication method list is set to local The first form sets the privileged mode password to the given plaintext password Use this form when typing a password by hand The second form takes a secure hash of the password known as the encrypted password rather than the password itself There is no known way to compute the password from its secure hash so this form of the command is more secure This form is useful primarily when cutting and pasting from a saved configuration file When the device configuratio
61. configuration is to allow all actions ie the default contents of all authorization method lists is the single method none which allows all actions Actions available for authorization exec Checked when starting a new CLI shell which happens immedately after login on the console via ssh or telnet commands 0 15 Checked when executing a CLI command at the specified privilege level By default a CLI session starts are privilege level 1 and after running en able the session privilege level is escalated to 15 The commands 1 method list controls what sort of authorization is performed by a session with priv ilege level 1 and commands 15 controls authorization for a session with privilege level 15 etc commands all Configures the method lists for all command privilege levels with a single command Using this has the same effect as setting commands 0 through commands 15 The supported authorization methods are local none and group group name The group name can either be the special keyword tacacs to indicate the server group composed of all configured TACACS servers or it can be the name of a group configured by the aaa group server command The no aaa authorization command reverts the authorization method list configuration for a particular type of action to the default configuration i e none Global Configuration aaa group server EOS User Manual 8 CHAPTER 2 CLICOMMANDS l aaa authoriza
62. d rather than the password itself There is no known way to compute the password from its secure hash so this form of the command is more secure This form is useful primarily when cutting and pasting from a saved configuration file When the device configuration is saved only the second form of this command is used so that the password is protected in the event that the configuration file is lost or stolen The third form allows a login for the given username with no password The fourth form deletes the given user account Mode Global Configuration See Also enable secret EOS User Manual 200 CHAPTER 2 CLICOMMANDS l vlan Name vlan Enter vlan configuration mode Synopsis vlan vlanld no vlan vlanld default vlan vlanId Description The vlan configuration command can be used to configure a vlan or a range of vlans Using this command you can configure the vlan settings such as the name and operational state For a complete list of choices you can always use in vlan configuration mode To delete a vlan use the no form of the command To revert a vlan s settings to their default values use the default form of the command Mode Global Configuration See Also show vlan EOS User Manual 201 CHAPTER 2 CLICOMMANDS l write Name Synopsis Description Mode See Also write Manipulate the running configuration file write erase write memory write network url w
63. d defaulting to 32 You can also set a severity level for buffered logging which may be specified either as a number between 0 and 7 or as one of the keywords emergencies alerts critical errors warnings notifications informational or debugging defaulting to 7 debugging All system messages equal to or more severe than the configured value will be logged to the system buffer The no form of the command disables buffered logging Mode Global Configuration See Also logging level show logging EOS User Manual 60 CHAPTER 2 CLICOMMANDS l logging console Name logging console Configure logging to the console Synopsis logging console severity no logging console Description This command can be used to enable and or configure logging to the console You can also set a severity level for console logging which may be specified either as a number between 0 and 7 or as one of the keywords emergencies alerts critical errors warnings notifications informational or debugging defaulting to 2 critical All system messages equal to or more severe than the configured value will be logged to all terminals on the system The no form of the command disables console logging Mode Global Configuration See Also logging level show logging EOS User Manual 61 CHAPTER 2 CLICOMMANDS l logging host Name logging host Configure a syslog server to send system log messages to Synopsis logging
64. d that you conspicuously and appropriately publish on each copy an appropriate copyright notice and disclaimer of warranty keep intact all the notices that refer to this License and to the absence of any warranty and give any other recipients of the Program a copy of this License along with the Program You may charge a fee for the physical act of transferring a copy and EOS User Manual 214 CHAPTER 5 OPEN SOURCE LICENSES you may at your option offer warranty protection in exchange for a fee 2 You may modify your copy or copies of the Program or an y portion of it thus forming a work based on the Program and copy and distribute such modifications or work under above provided that you also meet all of t a You must cause the modified files to stating that you changed the files and b You must cause any work that whole or in part contains or is part thereof to be licensed as nder the terms of this you dis parties u License c If the modified p when run you must cause it Sor when interactive use in the mos the terms of Sec hese conditions carry prominent the date of any c tribute or publis tion 1 notices hange h that in derived from the Program or any a whole at no charge to all third rogram normally reads commands interactively started running for such t ordinary way to print or display an announcement including an appropriate copyright notice
65. de Privileged EXEC EOS User Manual 79 CHAPTER 2 CLICOMMANDS l rmdir Name rmdir Remove a directory Synopsis rmdir url Description Removes the directory url The command fails if the directory is not empty To remove a non empty directory use delete recursive Mode Privileged EXEC See Also mkdir delete EOS User Manual 80 CHAPTER 2 CLICOMMANDS l service sequence numbers Name service sequence numbers Stamp logger messages with a sequence number Synopsis service sequence numbers no service sequence numbers Description Adds sequence numbers to logging data Mode Global Configuration See Also show logging EOS User Manual 81 CHAPTER 2 CLICOMMANDS l show aaa Name show aaa Display the user database and corresponding encrypted passwords Synopsis show aaa Description Displays the Aaa user database in the system The encrypted enable password is shown first fol lowed by a tabulated output of configured user ids and their corresponding encrypted password Note that for security reasons the un encrypted password is never displayed Mode Privileged EXEC EOS User Manual 82 CHAPTER 2 CLICOMMANDS l show aaa method lists Name show aaa method lists Display configured AAA method lists Synopsis show aaa method lists authentication authorization all Description The policy that controls how the AAA agent authenticates and authoriz
66. dification time of the file and its name Privileged EXEC pwd show file information EOS User Manual 31 CHAPTER 2 CLICOMMANDS l disable Name Synopsis Description Mode See Also disable Exit from Privileged EXEC mode disable 0 15 Once within Privileged EXEC mode you can use the disable command to return to EXEC mode This way you can disable all the Privileged commands say when sharing your session with someone else You may specify an optional privilege level from 0 to 15 but the command will fail if the privilege level is greater than your session s current level If not specified the disable command defaults to reducing the session to privlege level 1 A session with any privilege level greater than 1 is considered to be in Privileged EXEC mode Privileged EXEC enable show privilege EOS User Manual 32 CHAPTER 2 CLICOMMANDS l echo Name echo Echo a string Synopsis echo string Description The echo command is used to echo a string This is especially helpful in creating a text file by using the echo command and redirecting the output to a file The echo command is also useful in putting markers in the output when connecting to the system through scripts Mode Privileged EXEC EOS User Manual 33 CHAPTER 2 CLICOMMANDS l enable Name enable Enter the Privileged EXEC mode Synopsis enable 0 15 Description You can use the enable
67. ds Mode Global Configuration See Also errdisable recovery cause show errdisable recovery show interfaces status errdisabled EOS User Manual 40 CHAPTER 2 CLICOMMANDS l exit Name exit Exit from current mode Synopsis exit Description The exit command can be used to exit from the current mode In Global Configuration or Interface Configuration mode the exit command will return the system to the previous mode example exit from Global Configuration mode will return the system to Privileged EXEC mode In the Privileged EXEC mode or EXEC mode the exit command will terminate the user session Mode Privileged EXEC Global Configuration Interface Configuration Vlan Configuration See Also configure terminal end EOS User Manual 41 CHAPTER 2 CLICOMMANDS l extension Name Synopsis Description Mode See Also extension Install or uninstall an EOS extension extension extension name force no extension extension name force The extension configuration command can be used to install an extension Before an extension may be installed the extension must be copied to the EOS extension filesystem Use the copy command to copy an extension from the local flash filesystem a USB disk or a network URL For example copy flash Awesome swix extension will add that extension Use delete to remove an extension Note that the extensions filesystem resides on the internal flash di
68. ee ER eS 140 EOS User Manual y CONTENTS SHOW simp CONMMUIMGEY e 25h 6 ak eee a ee ed ee ae eae Oe we 141 Show simpPenenieID os owe Ae we bee eee eae i Ce ew ae bw he ee ea ee wa RS 142 e IS a ee SRR Pee eee be ee ee Pe ae ede hoes oS 143 Ja SIME NOR 8 5 icone ee BN eee aoe Be es A ees A ee ee Oe A ee oe E E 144 BROW SIP USER a Se ee SRE RE ERS AS we ee eee Pe Re E s 145 SHOW SINE VIEW o o a doce a Seek ER wR EE Re REDE Seek He ea ee bh Gee 146 SHOW SPAMMER Ca o A er A A eR AG he Gs 147 show spauning tree blockedparts o coes 52645 2 ee RL ER wee A 148 shov spanming ee Dige or OM BO DES Rae Ee bits BA ees 149 show spauning tree bradge detail lt 0 oe wa ca komen AR he ee eee E eG 150 Show spanning tree cOnntefs ooo cado ew ee a Eee RA 151 show spanning tree detall s ooo eooc ooed ee ee eee ee a eae 152 Show spamning tr e Interiace o s o coooa a ee ee SE ee ee we 154 show spanning tree interface detail o s eo eosed EERE RR REE Ee RE EO 155 SHOW spanning SS DOE esperas E ES A ew SA eS Re Ree a eee 156 Show spannine trec rool d tail s soos A Re RR A EG Bs 157 show spanning tree topology stat s ee 158 Show spanmine tree V A oir cs Aa ee a AG eee Oh A eh AAS G 159 shos SEO 2 ee ed eee ER AA ee eee eS 160 show Starcom INE e soa kd te er Re EDR BO REREAD DEERE Rie OA Ee OHH ES 161 AC cc O eA ee ee Se he EA A OP ae ee oe ee 162 Show tech suppott sus io Cae aE EERE A E EE ee Ew eS 163 SHOW TCE odo PR Ae ee RE A PAE
69. ee port priority priority no spanning tree port priority Description The priority parameter defaults to 128 The command accepts a value in the range from 0 to 240 The value must be a multiple of 16 The no form of the command reverts the port priority to the default value Mode Interface Configuration EOS User Manual 181 CHAPTER 2 CLICOMMANDS l spanning tree portfast Name spanning tree portfast Set the value of the spanning tree protocol AdminEdge parameter for the interface Synopsis spanning tree portfast no spanning tree portfast Description spanning tree portfast is disabled by default The command sets the spanning tree protocol Ad minEdge parameter to true This allows the interface to begin forwarding packets immediately when the link comes up This should only be used on interfaces directly connected to hosts Enabling port fast on an interface connected to another switch in the network can lead to temporary loops in the network The loops are temporary because the spanning tree protocol eventually detects another bridge connected to the interface and disables the edge port status initialized by this parameter Even if spanning tree portfast is not enabled for an interface the spanning tree protocol by default attempts to determine if the interface is at the edge of the network This behavior is controlled by the spanning tree portfast auto command Mode Interface Configuration EOS User Manual 182 CHAP
70. erver has been configured or for the last TACACS server in a redundant configuration the timeout will be used to determine how long to wait before considering the request to have failed To communicate with multiple TACACS servers that each have a different timeout specify a server specific timeout when using the tacacs server host command To reset the timeout to the default value which is 5 seconds use the no tacacs server timeout command Mode Global Configuration See Also tacacs server host EOS User Manual 196 CHAPTER 2 CLICOMMANDS l telnet Name telnet Connect to another host using the Telnet protocol Synopsis telnet hostname telnet hostname port number telnet hostname keyword Description Connect to another host using the Telnet protocol The hostname can either be the hostname or the IP address of the host The second argument port number is optional the default being port number 23 You can also specify any of the listed protocol names and the system will Telnet using the corresponding port number Mode EXEC See Also connect EOS User Manual 197 CHAPTER 2 CLICOMMANDS l terminal length Name terminal length Configure pagination in a terminal Synopsis terminal length lines Description The terminal length command configures the pagination length to lines for all show commands on a terminal If the output of a show command is longer than the configured terminal leng
71. es actions is defined by several method lists These method lists can be displayed with the command show aaa method lists passing the type of method lists that you wish to see eg authentication or authorization or you may display all method lists with the command show aaa method lists all Mode Privileged EXEC See Also aaa authentication enable aaa authentication login aaa authorization EOS User Manual 83 CHAPTER 2 CLICOMMANDS l show aaa sessions Name show aaa sessions Display the current login sessions Synopsis show aaa sessions Description Displays the active AAA login sessions The information displayed includes username TTY state of the session pending or established duration authentication method and if available remote host and remote username Mode Privileged EXEC EOS User Manual 84 CHAPTER 2 CLICOMMANDS l show boot config Name show boot config Display the software image that will be loaded at the next system reset Synopsis show boot config Description Displays the system configuration showing the software image that will be loaded at bootup Note that this information is saved separate from the startup configuration as the software image needs to be loaded prior to parsing the startup configuration file The boot configuration can point to images in flash or in usb1 Mode Privileged EXEC See Also boot system EOS User Manual 85 CHAPTER 2 CLICOM
72. etter The no form of the command reverts the priority to the default value Rather than configuring this value directly we recommend that you use the spanning tree root command instead Mode Global Configuration EOS User Manual 184 CHAPTER 2 CLICOMMANDS l spanning tree root Name Synopsis Description Mode spanning tree root Set the value of the spanning tree protocol bridge priority parameter to a value that makes this switch the root of the spanning tree spanning tree root primary secondary no spanning tree root Use the spanning tree root command to make the switch the primary or secondary root of the network The spanning tree root primary command sets the priority parameter of the switch to 8192 If no other switch is similarly configured this gives the switch the best priority value in the network With the best priority value the switch becomes the root bridge of the network The spanning tree root secondary command sets the priority parameter of the switch to 16384 If no other switch is similarly configured this gives the switch the second best priority value in the network With the second best priority value the switch becomes the root bridge of the network if the primary root bridge fails Global Configuration EOS User Manual 185 CHAPTER 2 CLICOMMANDS l spanning tree transmit hold count Name spanning tree transmit hold count Set the value of the spanning tree protoco
73. etwork interface automatically via DHCP ifconfig Prints or alters network interface settings wget Downloads a file from an HTTP or FTP server Many Aboot shell commands are provided by Busybox an open source imple mentation of common UNIX utilities Busybox command help can be found at http www busybox net downloads BusyBox html Note that only a subset of the documented commands there are available in Aboot EOS User Manual 209 CHAPTER 4 ABOOT Storage Devices The top level root directory of the Aboot directory hierarchy is a filesystem whose contents are stored in system RAM only any changes in this filesystem vanish after the Aboot shell exits The mnt directory contains subdirectories on which the filesystems of storage devices appear making a storage device available for use is known as mounting Aboot mounts the internal flash device on mnt flash On a system with two USB ports if you insert a USB flash drive into one of the ports Aboot automatically mounts its filesystem on mnt usb1 or mnt usb2 The filesystem is automatically unmounted when you remove the USB flash drive from the port Most USB drives contain an LED that flashes when the system is accessing it be careful not to remove the drive until the LED stops flashing Aboot supports most commonly available models of USB flash drives The flash drive must be formatted with the FAT or VFAT filesystem most USB flash drives are sold already formatted with
74. event this we have made it clear that any patent must be licensed for everyone s free use or not licensed at all The precise terms and conditions for copying distribution and modification follow GNU GENERAL PUBLIC LICENSE TERMS AND CONDITIONS FOR COPYING DISTRIBUTION AND MODIFICATIO 0 This License applies to any program or other work which contains notice placed by the copyright holder saying it may be distributed nder the terms of this General Public License The Program below fers to any such program or work and a work based on the Program eans either the Program or any derivative work under copyright law hat is to say a work containing the Program or a portion of it ther verbatim or with modifications and or translated into another anguage Hereinafter translation is included without limitation in he term modification Each licensee is addressed as you oO tr OcdctsBsG DM H Activities other than copying distribution and modification are not covered by this License they are outside its scope The act of running the Program is not restricted and the output from the Program is covered only if its contents constitute a work based on the Program independent of having been made by running the Program Whether that is true depends on what the Program does 1 You may copy and distribute verbatim copies of the Program s source code as you receive it in any medium provide
75. figuration and shows the contents of the system logging buffer if buffered logging is enabled You can also configure the system to send messages to a Syslog server using the logging host configuration command Mode EXEC See Also logging level service sequence numbers logging buffered EOS User Manual 125 CHAPTER 2 CLICOMMANDS l show mac address table Name show mac address table Display the contents of the MAC address table Synopsis show mac address table static dynamic address mac addr interface interface vlan vlanld show mac address table multicast vlan vlanId user count show mac address table count vlan v an d Description To display entries in the MAC address table type the command show mac address table As shown above the command prints all addresses known to the switch static entries dynamic entries and multicast entries The entries are shown with the following fields Vlan VLAN ID on which this address was learned The device learns MAC address entries on each VLAN independently MAC address The host MAC address in hexadecimal format Type The type of the entry one of STATIC DYNAMIC or USER Multicast addresses seeded by the operator get the USER label Ports All ports associated with this host address For dynamically learned hosts this is only a single port For statically configured hosts this may show more than one port The port name shown is an abbreviation of
76. figured in boot config automatically if you take no action during the boot process If the boot process fails for any reason such as an incorrectly configured SWI Aboot stops and enters the shell allowing you to correct the configuration or boot a SWI manually Entering the Aboot Shell To halt the automatic boot process and enter the Aboot shell press Control C ASCII 3 in your terminal emulator after the Press Control C message appears Pressing Control C interrupts the boot process once it has begun except during the Starting new kernel phase which is not interruptible If no password has been configured in boot config the Aboot shell starts immediately Otherwise you must enter the correct password at the Aboot password prompt to start the shell If you enter the wrong password three times Aboot allows you to perform a full flash recovery to restore the factory default settings see the Recovery section The Aboot shell starts by printing Welcome to Aboot followed by the Aboot prompt Manual Booting To list the contents of the internal flash enter 1s mnt flash at the Aboot prompt For example Aboot ls mnt flash EOS swi boot config startup config To boot EOS swi on the internal flash enter boot flash EOS swiorboot mnt flash EOS swi EOS User Manual 207 CHAPTER 4 ABOOT Specifying a Software Image Aboot s boot command supports several ways to specify a SWI device path flash EOS swi Boots a S
77. for example Aboot halts the boot process and drops into the shell The EOS boot system command sets the SWI in boot config Console Speed Setting CONSOLESPEED to 2400 4800 9600 19200 or 38400 causes Aboot to configure the console speed to the given baud rate at boot Careful If you set the console speed to a value unsupported by either the switch hardware or by your terminal you will not be able to interact with the Aboot shell See the Recovery section for instructions on restoring the factory default configuration The EOS boot console speed command sets the CONSOLESPEED in boot config Password Normally Aboot allows anyone with access to the switch s console port to enter the Aboot shell In some environments additional security may be desired If the boot config contains a PASSWORD setting Aboot requires the user to enter a password before granting access to the Aboot shell If the wrong password is entered three times Aboot prompts the user to recover the factory default configuration see the Recovery section for details The value of the PASSWORD setting must be an MDS encrypted password in the form generated by the UNIX passwd program or the crypt library function plaintext passwords are not understood Thus it is not recommended to set the value of PASSWD manually use the EOS boot secret com mand to set the Aboot password NET Settings If NETDEV is present in boot config Aboot attempts to configure the specified
78. ggregates on the two ends do not agree In such cases the status is displayed as Mismatched Agg and the administrator should investigate the conflicting configuration infor mation on the two switches show lacp sys id displays the System Identifier used by our local LACP when negotiating with remote LACP implementations show lacp internal displays the local state of the LACP protocol for each interface The local state includes the state machines and protocol information described in 802 11 43 as well as some internal state relevant to the Eos implementation of LACP show lacp neighbor displays our knowledge of the remote state of the LACP protocol for the neigh bor of each interface show lacp interface allows the user to specify individual interfaces rather than port channels It displays both local and remote information about the LACP state roughly the combined information of show lacp internal and show lacp neighbor show lacp aggregates displays the aggregates negotiated by LACP for each configured port channel The aggregate information includes the aggregate s LAG ID as well as the member ports EXEC channel group show port channel show port channel limits lacp system priority EOS User Manual 124 CHAPTER 2 CLICOMMANDS l show logging Name show logging Displays Syslog configuration and buffered log messages Synopsis show logging Description This command displays the current Syslog con
79. h just a pair of uplinks connecting it to the rest of the network By allowing only one of the uplinks to be forwarding traffic at a time the switch prevents forwarding loops just as the Spanning Tree protocol would For backup interfaces to become active the Spanning Tree protocol mode must be configured to backup using the spanning tree mode backup command Using the prefer vlan option to the backup interface command allows you to load balance for warding traffic across both the primary and backup interfaces The vlans listed with this option are forwarded on the backup interface and not the primary interface when both interfaces are up They are preferred on the backup With this option the interfaces act as backups for each other with each acting as the primary for a subset of the vlans carried by the pair To check the state of backup interface pairs on the switch use the show interfaces switchport backup command For example configuring interface Ethernet as the primary and Ethernet as the backup with vlans 1 10 carried on Ethernet and 11 20 carried on Ethernet2 you could use the following configuration localhost config vlan 1 20 localhost config spanning tree mode backup localhost config interface Ethernetl localhost config if switchport backup interface Ethernet2 prefer vlan 11 20 localhost config if end With this configuration and both interfaces up Ethernet forwards vlans 1 10 while blocking vlans 11 20
80. he boot config file using the boot system command localhost configure terminal localhost config boot system flash EOS 2 2 0 swi You can verify that the boot config file has been correctly updated with the show boot config com mand localhost config show boot config Software image flash EOS 2 2 0 swi Console speed not set Aboot password encrypted 1Sapl1QMbmzSDTqsFYeauuMSa7 Qxbi211 EOS User Manual 2 CHAPTER 1 UPGRADE PROCEDURE 3 Reload Once the boot config file has been updated the switch must be reloaded to allow the new image to become active Save the running configuration and reload the switch localhost write memory localhost reload The system is going down for reboot NOW 4 Verify After the switch has finished reloading log into the switch and confirm the correct image has been loaded localhost show version Arista DCS 7124S Hardware version 02 02 Serial number JFL07340036 Software image version 2 2 0 Architecture 1386 Internal build version 2 2 0 59039 E082 2 0 Internal build ID 34b0734 30ea 4544 b8c2 679b1bb6beccf Uptime 1 minute Total memory 1036504 kB Free memory 777376 kB EOS User Manual 3 CHAPTER 2 CLICOMMANDS Chapter 2 CLI Commands EOS User Manual 4 CHAPTER 2 CLICOMMANDS l Interface Range Syntax Name Interface Range Syntax syntax for interface ranges Synopsis localhost show interfaces Ethernet 5 10 14 18 localhost sho
81. he default configuration is to use only the local user database for login authentication for all services The supported authentication methods are local none and group group name The group name can either be the special keyword tacacs to indicate the server group composed of all configured TACACS servers or it can be the name of a group configured by the aaa group server command The no aaa authentication login command reverts the authentication method list configuration for a particular service or the special keyword default to the default configuration i e local A separate command aaa authentication enable configures the authentication method list for the enable command Global Configuration username secret aaa group server aaa authentication enable EOS User Manual 7 CHAPTER 2 CLICOMMANDS l aaa authorization Name Synopsis Description Mode See Also aaa authorization Set authorization method lists aaa authorization exec commands 0 15 all default method 1 method 2 method n no aaa authorization exec commands 0 5 all default An authorization method list controls which authorization methods are invoked in which order to authorize a certain action For example you may wish to configure a switch to use a TACACS server to authorize all commands entered by a user but if that server is unavailable fall back to allowing the commands to be run The default
82. he given interface or all interfaces This command is used to reset the switch to running the rapid spanning tree protocol on an interface where it has previously detected a bridge running the old version of the protocol Mode Privileged EXEC EOS User Manual 21 CHAPTER 2 CLICOMMANDS l clock set Name clock set Set the system date and time Synopsis clock set Description Set the system clock and time The system clock needs to be setup so that system generated Syslog messages and other events are recorded accurately You can also configure the system to get the current clock using the ntp server command from an NTP server In addition you can use the clock timezone command to configure the correct timezone for your switch Mode Privileged EXEC See Also clock timezone ntp server EOS User Manual 22 CHAPTER 2 CLICOMMANDS l clock timezone Name clock timezone Set the system timezone Synopsis clock timezone name Description The clock timezone name command is used to configure the system timezone The timezone name can be any from the listed choices Mode Global Configuration See Also show clock ntp server EOS User Manual 23 CHAPTER 2 CLICOMMANDS l configure terminal Name configure terminal Change the system configuration Synopsis configure terminal Description This command is used to change the system configuration Once you enter this command you can
83. hernetl Abbreviated and lower case interface names are accepted as well and these can be combined with a range to display the configuration for more than one interface For example to display the configu ration for interfaces Ethernet and Ethernet2 use the command show running config interface ethl eth2 or show running config interface ethl 2 You can also use regular expression syntax in the interface name pattern For example to display the configuration for interfaces Vlan1 Vlan3 and Vlan5 use the command show running config interface vlan 1 3 5 Privileged EXEC EOS User Manual 139 CHAPTER 2 CLICOMMANDS l show snmp Name show snmp Display high level status of the SNMP agent Synopsis show snmp Description Displays high level status of the SNMP agent If the SNMP agent is enabled the output will include SNMP packet and error counters as well as the SNMP contact and location if configured More detailed information about other aspects of the SNMP agent configuration is available through the show snmp community show snmp group show snmp host show snmp user and show snmp view commands Mode EXEC See Also show snmp community show snmp group show snmp host show snmp user show snmp view EOS User Manual 140 CHAPTER 2 CLICOMMANDS l show snmp community Name show snmp community Display details of the configured SNMP communities Synopsis show snmp community
84. ified interface or for all interfaces if none is specified The output shows the configured and operating flowcontrol information for rx and tx directions of the interface s This command is identical to show interfaces flowcontrol Mode EXEC See Also show interfaces flowcontrol EOS User Manual 98 CHAPTER 2 CLICOMMANDS l show history Name show history Display history of all commands issued Synopsis show history Description Displays a history of all commands issued during the session Mode EXEC EOS User Manual 99 CHAPTER 2 CLICOMMANDS l show installed extensions Name show installed extensions Display installed EOS extensions Synopsis show installed extensions Description Displays status of the EOS extensions that have been installed The extensions are listed in the order in which they were installed The output of this command is in the same format as the boot extensions file which determines which extensions are installed during the EOS boot procedure Mode Privileged EXEC See Also show extensions EOS User Manual 100 CHAPTER 2 CLICOMMANDS l show interfaces Name show interfaces Display details about the status of all interfaces Synopsis show interfaces interface range Description Displays operational status and link related configuration of the specified list of interfaces or all interfaces if no list is specified The output include
85. ignated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301 0089 Designated port id is 128 20 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 1 Link type is point to point by default Internal BPDU sent 136065 received 2 taggedErr 0 otherErr 0 Port path cost 2000 Port priority 128 Port Identifier 128 24 Designated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301 0089 Designated port id is 128 20 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 0 Link type is point to point by default Internal BPDU sent 2 received 136065 taggedErr 0 otherErr 0 In this output we first see information on this switch Then we see the detailed spanning tree state for the interface Interfaces that are link down are not running the spanning tree protocol and are not shown in the command output Mode EXEC EOS User Manual 153 CHAPTER 2 CLICOMMANDS l show spanning tree interface Name show spanning tree interface Display a summary of the spanning tree protocol state for a given interface Synopsis show spanning tree interface interface Description The show spanning tree interface command displays a summary of the spanning tree protocol information for the given interface This is the
86. ion excluding f this License tents or by copyrighted interf r this ibution is permitted only in o In such case this Lice n the body of this Lice nse inc nse ion may publish revised and or from time to time Suc nded to make thoroughly clear what is believed to ion and or use of the Program is restricted in aces the License r among orporates new versions h new versions will be similar in spirit to the present version but may differ in detail to address new problems or concer Each version is given a distinguishing version number specifies a version number of ns Tf t this License which applies to later version you have the option of following the terms a either of that version or of a Software Foundation this License you may choose a Foundation 10 If you wish to incorpora programs whose distribution co to ask for permission For so EOS User Manual ny later version published by ny version ever published by t te parts of the Program into o nditions are different write ftware which is copyrighted by he Program it and any nd conditions the Free If the Program does not specify a version number of he Free Software ther free to the author the Free 217 CHAPTER 5 OPEN SOURCE LICENSES Software Foundation wr make exceptions for thi of preserving the free of promoting the sharin ite to the Free Software Foundation we sometimes
87. is loaded at system startup The image specified can be located on the flash or on a USB drive which is mounted as the usb1 device You can use to list all available files on the device e g boot system flash will list all available files on flash Note that the default extension of the boot images is swi Mode Global Configuration See Also show boot config EOS User Manual 13 CHAPTER 2 CLICOMMANDS l cd Name cd Change the current working directory Synopsis cd url Description Change the current working directory to url If url is omitted the current working directory is set to the home directory namely flash The current working directory is the default argument when a complete path is not specified for file related operations The cd command makes it very convenient to perform file operations such as copy dir etc By changing the current directory you do not need to type the complete directory path over and over again Mode Privileged EXEC See Also pwd dir copy EOS User Manual 14 CHAPTER 2 CLICOMMANDS l channel group Name Synopsis Description Mode See Also channel group Assign an interface to a port channel channel group number mode on active passive no channel group Use the channel group command to assign an interface to a port channel mode on unconditionally assigns the interface to port channel number mode active enables LAC
88. l show ntp status Name show ntp status Display the current operating configuration Synopsis show ntp status Description Displays the current operating configuration of the system as a sequence of configuration commands Mode EXEC See Also show ntp associations EOS User Manual 131 CHAPTER 2 CLICOMMANDS l show port channel Name Mode Synopsis Description See Also show port channel Display the members of a port channel show port channel number brief detailed show port channel displays the members of all port channels show port channel number displays the members of port channel number When brief is specified the default only the currently active members of the port channel are dis played When detailed is specified all configured ports in the port channel are displayed whether they are active or not For inactive ports show port channel number provides a brief reason ex plaining why the port is inactive Note that a port channel may be configured to contain many ports but that only a subset may be active at any given time All active ports in a port channel must be compatible Compatibility com prises many factors and is specific to a given platform For example compatibility may require iden tical operating parameters such as speed and or MTU Compatibility may only be possible between specific ports because of internal organization of the switch sh
89. l hold count pa rameter Synopsis spanning tree transmit hold count packets no spanning tree transmit hold count Description The hold count parameter defaults to 6 packets The command accepts a value in the range from 1 to 10 packets The hold count limits the number of spanning tree protocol packets that the switch can send out on a single interface in a short interval At most hold count packets are sent out an interface in second The no form of the command reverts the hold count to the default value Mode Global Configuration EOS User Manual 186 CHAPTER 2 CLICOMMANDS l switchport access vlan Name switchport access vlan Configure the VLAN for an interface in access mode Synopsis switchport access vlan vlanid no switchport access vlan default switchport access vlan Description The switchport access vlan command configures the access VLAN of an interface that is in access mode The vlanId argument must be an integer in the range 1 through 4094 If the specified VLAN doesn t already exist it is created automatically by this command When the interface is in access mode the access VLAN is the single VLAN of which the interface is a member Untagged frames received on the interface are associated with the access VLAN Tagged frames received on the interface are dropped unless they are tagged with the access VLAN The no and default forms of the command both revert the access VLAN to the default value of 1 No
90. le flash startup config You would see the same result by using the more flash startup config command The show startup config command just makes this a bit easier as you do not need to remember the path to the file Mode Privileged EXEC See Also startup config show running config more EOS User Manual 160 CHAPTER 2 CLICOMMANDS l show startup config interface Name Mode Synopsis Description show startup config interface Display the current startup configuration of an interface or set of interfaces show startup config interface name pattern name pattern This command displays the current contents of the startup configuration for interfaces matching the given interface name pattern or patterns The name patterns can be full or abbreviated interface names interface name ranges or regular expressions For example to display the configuration for interface Ethernet use the command show startup config interface Ethernetl Abbreviated and lower case interface names are accepted as well and these can be combined with a range to display the configuration for more than one interface For example to display the configu ration for interfaces Ethernet and Ethernet2 use the command show startup config interface ethl eth2 or show startup config interface eth1 2 You can also use regular expression syntax in the interface name pattern For example to display the configuration for interfaces Vlan1
91. me Mode EXEC See Also channel group show port channel EOS User Manual 133 CHAPTER 2 CLICOMMANDS l show privilege Name Mode Synopsis Description See Also show privilege Display the session s current privilege level show privilege Displays the current privilege level of the session EXEC enable disable EOS User Manual 134 CHAPTER 2 CLICOMMANDS l show processes Name Mode Synopsis Description See Also show processes Show system process and CPU utilization information show processes Displays a one line summary of how long the system has been up followed by a list of all processes on the system sorted by CPU utilization The first line follows the format of show uptime The columns in the process display consist of PID Process ID CPU Cpu utilization percentage Cpu time used by this process divided by the time the process has been running MEM Memory usage ratio Process resident memory usage divided by the total physical memory size TT Controlling tty terminal STAT Process state D Uninterruptible sleep PR Running S Sleeping T Traced or stopped Z Zombie STARTED Time the command was started HH MM SS if less than 24 hours ago otherwise MMM DD TIME Cumulative CPU time CMD Command with all its arguments Note that it is possible for the process to modify this infor mation If the
92. mode Configure the version of the Spanning Tree Protocol to run spanning tree mode rstp none backup no spanning tree mode The spanning tree mode command configures the version of the spanning tree protocol for the switch to run The spanning tree mode rstp command configures the switch to run the IEEE span ning tree protocol described in the IEEE 802 1D 2004 specification This version of the spanning tree protocol is also known as the rapid spanning tree protocol It was originally specified in the IEEE 802 1w specification The spanning tree mode none command configures the switch to disable the spanning tree pro tocol In this mode switchport interfaces immediately forward packets once they are connected and no spanning tree protocol packets are generated by the switch Spanning tree protocol packets received by the switch are forwarded within the vlan on which they are received as normal multicast data packets The spanning tree mode backup command configures the switch to disable the spanning tree pro tocol and enable interface pairs configured with the switchport backup interface command The no form of the command reverts the spanning tree mode to the default of rstp Global Configuration EOS User Manual 180 CHAPTER 2 CLICOMMANDS l spanning tree port priority Name spanning tree port priority Set the value of the spanning tree protocol port priority parameter for the interface Synopsis spanning tr
93. n is saved only the second form of this command is used so that the password is protected in the event that the configuration file is lost or stolen The third form is used to specify that no password is required to enter privileged EXEC mode Mode Global Configuration See Also aaa authentication enable username secret EOS User Manual 35 CHAPTER 2 CLICOMMANDS l end Name end Return from any Configuration mode to Privileged EXEC mode Synopsis end Description You can use the exit command to return from any configuration mode to Privileged EXEC mode Note that the exit command only returns you to the previous mode As an example exit from Vlan Configuration mode will return the system to the Global Configu ration mode The end command however will return the system back from VLAN Configuration mode to Privileged EXEC mode Mode Global Configuration Interface Configuration Vlan Configuration See Also exit EOS User Manual 36 CHAPTER 2 CLICOMMANDS l environment Name environment Configure environment parameters Synopsis environment fan speed auto override percent environment overheat action ignore shutdown Description Allows for the configuration of fan speed settings and switch actions in response to overheat condi tions Mode Global Configuration EOS User Manual 37 CHAPTER 2 CLICOMMANDS l erase startup config Name erase startup config
94. nd Mode Global Configuration See Also show snmp user snmp server group EOS User Manual 174 CHAPTER 2 CLICOMMANDS l snmp server view Name snmp server view Create or update an SNMP view Synopsis snmp server view view name object identifier tree included excluded no snmp server view view name object identifier tree Description The snmp server view configuration command can be used to create an SNMP view or to update an existing view If you enter multiple snmp server view commands with the same view name the resulting view will consist of the union of object identifier trees from all of the commands Each tree can ether be included or excluded where included means that access to object identifiers within that subtree is allowed and excluded means access is denied To remove a SNMP view use the no snmp server view command and specify the view name To remove just one tree from the view specify the view name and the tree object identifier Mode Global Configuration See Also show snmp view EOS User Manual 175 CHAPTER 2 CLICOMMANDS l spanning tree cost Name spanning tree cost Set the value of the spanning tree protocol path cost parameter for the inter face Synopsis spanning tree cost cost no spanning tree cost Description The cost parameter defaults to a value determined by the speed of the interface For 10 gigabit interfaces this default is 2000 and for 1 gigabit interfaces i
95. network interface using the following settings TDEV Name of the network interface configured by Aboot e g mgmt 1 TAUTO If set to dhcp Aboot configures the interface automatically via DHCP and ignores the er NET settings IP IP address of the network interface e g 1 2 3 4 TMASK IP subnet mask e g 255 255 255 0 TGW IP address of the default gateway DOMAIN Default domain name e g mycompany com TDNS IP address of a DNS server Pl EA o Ss Bo El EST a Ll 3 3 EOS User Manual 211 CHAPTER 4 ABOOT Recovery Aboot allows restoring the state of the internal flash to the factory defaults or a customized default state You can use these recovery methods to e restore the factory default flash contents before transferring the switch to another owner e restore Aboot shell access if you lose or forget the Aboot password e restore console access if baud rate or other settings are incompatible with your terminal emu lator or e automatically replace the existing internal flash contents with the boot config SWI and other files stored on a USB flash key This is useful not only for recovery but also for installing a customized configuration on a number of switches or allowing non technical personnel to set up a switch at a remote site Restoring Factory Default State The Aboot fullrecover command erases the internal flash and restores it to the factory default contents This command can be
96. ning config and flash startup config respectively Privileged EXEC cd startup config running config EOS User Manual 26 CHAPTER 2 CLICOMMANDS l delete Name delete Delete a file or directory tree Synopsis delete recursive url Description Deletes the file url url may be a wildcard in which case all matching files are deleted The command fails if url is a directory unless recursive is specified in which case url and its contents are deleted Note that to delete the startup config you need to use the erase startup config command Mode Privileged EXEC See Also rmdir erase startup config EOS User Manual 27 CHAPTER 2 CLICOMMANDS l description Name description Set an interface s description Synopsis description string no description Description The description command can be used to configure an interface s description The description is displayed by the show interfaces and show interfaces description commands The no form of the command removes the configured description Mode Interface Configuration See Also show interfaces show interfaces description EOS User Manual 28 CHAPTER 2 CLICOMMANDS l diagnostic Name Mode Synopsis Description See Also diagnostic Enter diagnostic test mode diagnostic The diagnostic command allows you to enter the diagnostic test mode and run tests Please work with your support repre
97. ning configuration file See Also show running config copy startup config EOS User Manual 204 CHAPTER 3 FILE FORMATS l startup config Name startup config Startup configuration file Description The startup config file contains the configuration that is loaded when the system boots The file is formatted as a sequence of configuration commands exactly as they would be typed in at the CLI Blank lines and leading and trailing spaces are ignored Lines whose first non blank character is an exclamation mark are comments and are ignored The startup config file may be viewed with the command show startup config It may be erased with the command erase startup config and replaced with the copy command Files flash startup config The startup configuration file See Also show startup config erase startup config copy running config EOS User Manual 205 CHAPTER 4 ABOOT Chapter 4 Aboot Introduction Aboot is the boot loader for Arista Networks switch products It is a firmware component stored in a small memory on the system board separate from the internal flash storage device When the switch is powered on or rebooted Aboot reads its configuration from boot config on the internal flash and attempts to boot a software image SWI automatically if one is configured Aboot provides an interactive command line interface or shell allowing users to boot a SWI man ually recover the internal flash t
98. nmp server user snmp server view show snmp community EOS User Manual 170 CHAPTER 2 CLICOMMANDS l snmp server enginelD Name snmp server engineID Set the SNMP agent s engineID Synopsis snmp server enginelD local engineid string no snmp server enginelD local Description The snmp server engineID configuration command can be used to override the SNMP agent s default engineID The enginelD is specified as a string of hexadecimal characters between 10 and 64 characters long representing between 5 and 32 octets that compose the engineID The engineID must be unique within the administrative domain in which the agent is being managed It is not common to need to override the engineID Any SNMPy3 user configured with authentication or privacy options has its passphrase s localized using the engineID of the agent at the time the user was configured If the engineID is changed at a later time any existing user will cease to function properly due to a mismatch between the engineID used to localize the user s authentication and privacy keys and the newly configured engineID Thus it is important to reconfigure any users after changing the agent s engineID Mode Global Configuration EOS User Manual 171 CHAPTER 2 CLICOMMANDS l snmp server group Name Synopsis Description Mode See Also snmp server group Create or replace an SNMP group snmp server group group name v1 v2c v3 auth noa
99. o create a named group of servers for use by the Authen tication Authorization and Accounting AAA subsystem The group can then be specified when configuring an authentication method list for example when using the aaa authentication login or aaa authentication enable commands The only server group type currently supported is tacacs aaa group server tacacs group name enters server group configuration mode for the specified group You can add a server to the group in this mode using the server hostname or address port 1 65535 Remove a server with the no server variant of the command used to add the server Type exit to exit server group configuration mode Note that you must separately configure parameters for each server in a group using the tacacs server host host command No requests will be made to any servers in a TACACS server group that have not also been configured using tacacs server host To remove a server group from the configuration use the no aaa group server command and specify the group type e g tacacs and the group name Global Configuration tacacs server host aaa authentication login aaa authentication enable EOS User Manual 10 CHAPTER 2 CLICOMMANDS l banner login Name banner login Configure the login banner Synopsis banner login no banner login Description Defines a customized message displayed before the login and password prompts The login banner applies to console telnet
100. o its factory default state run certain hardware diagnostics and manipulate and copy files Terminology Throughout this chapter the term internal flash refers to the internal storage device and USB key or USB flash refers to an external storage device connected to a USB port regardless of the specific technology which may change in future switch products Connecting to the console To monitor the automatic boot process or enter the Aboot shell you need to connect to the system console port You can connect a PC or laptop directly to the port and run a terminal emulator to interact with the serial port or access it via a serial concentrator device Consult your terminal emulator documentation for instructions on configuring the console port speed and other settings These settings are stored in boot config the factory default settings for Arista Networks products are 9600 baud no parity 8 character bits and 1 stop bit If you do not know the correct settings you can perform a full flash recovery to restore the factory default settings see section Recovery EOS User Manual 206 CHAPTER 4 ABOOT When the console port is connected and the terminal settings are configured properly you should see the message similar to the following a few seconds after powering up the switch Aboot 1 0 0 Press Control C now to enter the Aboot shell Automatic Booting Aboot attempts to boot the software image SWT con
101. ocol versions 1 or 2c and a user name for protocol version 3 For protocol version 3 the SNMP agent must be separately configured with the remote user s details using the snmp server user command with the remote option To stop sending traps or informs to a host use the no snmp server host command and specify the hostname or IP address and optionally whether to stop sending traps or informs Global Configuration show snmp host EOS User Manual 173 CHAPTER 2 CLICOMMANDS l snmp server user Name snmp server user Create or replace an SNMP user Synopsis snmp server user user name group name v1 v2c v3 auth md5 sha auth passphrase priv aes des privacy passphrase Description The snmp server user configuration command can be used to create an SNMP user or to replace an existing user with the same user name Each user is a member of a group The group determines the set of SNMP objects that the user can access Each SNMP user is created with a security model of v1 v2c or v3 A v1 or v2c user is not very different than a community the user name can be used as a community string when accessing the SNMP agent with version 1 or version 2c of the SNMP protocol A v3 user is required to access the SNMP agent with version 3 of the SNMP protocol A v3 user is optionally configured to use MD5 or SHA 1 authentication and optionally DES or AES encryption To remove a SNMP user use the no snmp server user comma
102. ols what information is displayed for each interface that is chosen The all ports option controls which interfaces are chosen for display show lacp displays information about all port channels configured to use LACP show lacp number displays LACP related information about port channel number and its members show lacp interface displays information about all interfaces configured to use LACP show lacp interface interface displays LACP related information about interface interface When brief is specified the default then the show lacp command prints out basic information about each port in the port channel When detailed is specified then show lacp displays far more detailed information about each port The show lacp command only displays information about port channels configured to use LACP When a port is configured to be part of a port channel the user can specify the mode See channel group interface configuration command to configure an interface to be part of a port channel If the mode is on then the port channel is statically configured and the port channel does not use LACP and no information about this port channel is displayed in the show lacp command If the mode is either active or passive then the port channel is configured to use LACP in either active or passive mode respectively If a physical interface is configured to be part of a port channel and the port channel is configured to use LACP
103. on but will be displayed if configured ports is specified The system supports VLAN ids from 1 through 4094 and these can be configured using the vlan configuration command EXEC vlan EOS User Manual 168 CHAPTER 2 CLICOMMANDS l shutdown Name description Disable an interface Synopsis shutdown no shutdown Description The shutdown command can be used to disable an interface The no form of the command re enables the interface Mode Interface Configuration See Also show interfaces EOS User Manual 169 CHAPTER 2 CLICOMMANDS l snmp server community Name snmp server community Create or replace an SNMP community Synopsis snmp server community community string ro view view name no snmp server community community string Description The snmp server community configuration command can be used to create an SNMP community or to replace the existing community with the same community string Optionally you may specify the name of a view to be used for access control when the agent is accessed with this community string The SNMP agent is not enabled until the first community is created A side effect of creating a community is to enable the SNMP agent SNMP community strings are used when accessing the SNMP agent with SNMPv1 or SNMPv2 For access with SNMPv3 please see the snmp server user and snmp server group commands Mode Global Configuration See Also snmp server group s
104. onds 0 no mac address table aging time Description This commands allows for the configuration of the aging time for MAC address table entries The duration may be between 10 and 1000000 seconds or 0 to disable MAC address table aging The no form of the command reverts the aging time to the default value of 300 seconds Mode Global Configuration See Also show mac address table aging time EOS User Manual 67 CHAPTER 2 CLICOMMANDS l mkdir Name Synopsis Description Mode See Also mkdir Create a directory mkdir url Creates the directory url example mkdir flash images Privileged EXEC rmdir EOS User Manual 68 CHAPTER 2 CLICOMMANDS l monitor session Name Synopsis Description Examples monitor session Configure a mirroring session monitor session name source interface direction monitor session name destination interface no monitor session name no monitor session name source interface direction no monitor session name destination interface Mirroring can be used to copy packets sent recieved over the interface mirror source to another interface mirror destination for monitoring purposes The monitor session command can be used to configure mirroring Mirroring is enabled when a session has at least one active mirror source and an active mirror destination The command takes the session name and the interfaces on which mirroring
105. onfigure the IP address of the interface etc For a complete list of choices you can type in interface configuration mode Note that the single interface form of the command creates the interface if needed The multiple interface form of the command never creates interfaces Interface ranges may not include interfaces that do not exist You can use the exit or end commands to return from the interface configuration mode Mode Global Configuration See Also show interfaces Interface Range Syntax EOS User Manual 45 CHAPTER 2 CLICOMMANDS l interface port channel Name interface port channel Create or destroy a port channel Synopsis interface port channel number no interface port channel number Description Create port channel numbered number number may be an integer between 1 and 1000 inclusive To destroy a port channel use the no form of this command Note that it is not necessary to run interface port channel before assigning a port to this port channel see channel group interface configuration command Port channel number is implicitly created when a port is added to the specified port channel with the channel group number com mand show port channel number will display the ports that are members of this port channel Mode Global Configuration See Also channel group show port channel EOS User Manual 46 CHAPTER 2 CLICOMMANDS l ip domain name Name ip domain name Configure the
106. ons Synopsis logging on no logging on Description This command can be used to enable logging to all supported destinations Syslog server and buffered logging Mode Global Configuration See Also show logging EOS User Manual 64 CHAPTER 2 CLICOMMANDS l logging trap Name logging trap Configure the level of messages sent to Syslog server Synopsis logging trap severity no logging trap Description This command can be used to configure the level of log messages sent to the Syslog server The severity may be specified either as a number between 0 and 7 or as one of the keywords emergen cies alerts critical errors warnings notifications informational or debugging The no form of the command reverts the logging level to the default value of 6 informational Mode Global Configuration See Also show logging EOS User Manual 65 CHAPTER 2 CLICOMMANDS l logout Name logout Exit from current session Synopsis logout Description The logout command can be used to exit from the current session This is the same behavior as using the exit command from EXEC mode However the logout command can be used from any mode to terminate the session Mode EXEC See Also exit EOS User Manual 66 CHAPTER 2 CLICOMMANDS l mac address table aging time Name mac address table aging time Configure the MAC address table aging time Synopsis mac address table aging time sec
107. otocol do not work properly if the interface is connected to more than one other device The no form of the command reverts the link type to the default value Mode Global Configuration EOS User Manual 178 CHAPTER 2 CLICOMMANDS l spanning tree max age Name spanning tree max age Set the value of the spanning tree protocol max age parameter Synopsis spanning tree max age seconds no spanning tree max age Description The max age parameter defaults to 20 seconds The command accepts a value in the range from 6 to 40 seconds The max age parameter specifies the maximum acceptable value for the max age value in spanning tree protocol information received by the switch from a neighboring switch The spanning tree protocol information from the neighboring switch is discarded if its max age value exceeds the value specified by this command While the max age parameter is specified in seconds in practice it is implemented in most switches as a hop count rather than a time value Most switches including the Arista switches increment the max age value of the spanning tree information received on the root port by 1 before sending it out in a spanning tree protocol packet on another interface The no form of the command reverts the max age to the default value Mode Global Configuration EOS User Manual 179 CHAPTER 2 CLICOMMANDS l spanning tree mode Name Synopsis Description Mode spanning tree
108. output we first see this switch s information on the root bridge of the network Next comes information on this switch Finally for each interface we see a summary of the current spanning tree state for the interface Interfaces that are link down are not running the spanning tree protocol and are not shown in the command output EXEC EOS User Manual 147 CHAPTER 2 CLICOMMANDS l show spanning tree blockedports Name show spanning tree blockedports Display a list of the interfaces in the spanning tree discarding state Synopsis show spanning tree blockedports Description The show spanning tree blockedports command displays a list of the interfaces on the switch that are up and running the spanning tree protocol and are in the discarding state Here is an example of the command output Rstp Etl Et10 Et24 Number of blocked ports segments in the system 3 Mode EXEC EOS User Manual 148 CHAPTER 2 CLICOMMANDS l show spanning tree bridge Name show spanning tree bridge Display a brief summary of the spanning tree protocol bridge con figuration Synopsis show spanning tree bridge Description The show spanning tree bridge command displays a list of the spanning tree protocol configuration information for each spanning tree instance running on the switch The switch currently supports only one instance so the list is somewhat short Here is an example of the command output Bridge ID Hello Max
109. ove the specified interface to from the multicast router port set for a given vlan or vlan range Mode Global Configuration See Also show ip igmp snooping mrouter EOS User Manual 52 CHAPTER 2 CLICOMMANDS l Name ip igmp snooping vlan static Configure static multicast group members Synopsis no ip igmp snooping vlan lt vlan id gt static lt ip addr gt interface lt interface gt Description This command can be used to add remove the specified interface to from the specified multicast group in the specified vlan The ip address used with this command must be a valid unreserved IPv4 multicast address Mode Global Configuration See Also show ip igmp snooping groups EOS User Manual 53 CHAPTER 2 CLICOMMANDS l ip name server Name ip name server Specify the name and address resolution server s Synopsis ip name server ip address ip address no ip name server ip address ip address Description This command can be used to configure the IP address of the name server s for your network Up to three IP addresses may be configured Mode Global Configuration See Also ip domain name EOS User Manual 54 CHAPTER 2 CLICOMMANDS l ip route Name ip route Configure a static route Synopsis ip route ip address mask ip prefix interface name ip address metric no ip route ip address mask ip prefix Description This command can be used to
110. ow port channel limits displays the platform specific compatibility requirements as well as other information that may affect whether ports in a port channel are currently active A given port channel may be configured with a set of ports such that more than one subset of the member ports are mutually compatible Port channels in EOS are designed to activate the compat ible subset of ports with the largest aggregate capacity A subset with 2 40Gbps ports aggregate capacity 80Gbps will be selected in preference to a subset with 5 active 10Gbps ports aggregate capacity 50Gbps EXEC channel group show port channel limits EOS User Manual 132 CHAPTER 2 CLICOMMANDS l show port channel limits Name show port channel limits Displays per platform limits on how port channels may be formed from ports Synopsis show port channel limits Description show port channel limits displays groups of ports that are compatible and that may therefore be joined together into port channels Each group of compatible ports is called a LAG group For each LAG group the command also displays Max interfaces and Max ports per interface Max interfaces is a limit that defines the maximum number of active port channels that may be formed out of these ports Max ports per interface is a limit that defines the maximum number of active ports allowed in a port channel comprised of ports from this compatibility group at any given ti
111. packet counters by packet length Synopsis show interfaces interface range counters bins Description Displays the received packet counters by packet length per interface If an interface range is not specified it displays the counters for all interfaces Here is an example of the command output localhost show interface Ethernet1 2 counters bins Port 64 Byte 64 127 Byte 128 255 Byte 256 511 Byte Et1 0 0 0 0 Et2 0 0 0 0 Port 512 1023 Byte 1024 1522 Byte 1523 MAX Byte Et1 0 0 0 Et2 0 0 0 Mode EXEC See Also show interfaces counters Interface Range Syntax EOS User Manual 104 CHAPTER 2 CLICOMMANDS show interfaces counters errors Name Mode Synopsis Description See Also show interfaces counters errors Displays interface error counters show interfaces interface range counters errors Displays the error counters per interface If an interface range is not specified it displays the error counters for all interfaces Here is an example of the command output localhost show interface Ethernetl counters errors Port FCS Align Symbol Rx Runts Et1 0 0 0 0 0 EXEC show interfaces counters Interface Range Syntax EOS User Manual Giants Tx 0 0 105 CHAPTER 2 CLICOMMANDS l show interfaces description Name show interfaces description Display a summary of all interfaces and their description Synopsis show interfaces interface range description Description Displ
112. pport Name show tech support Displays information needed during troubleshooting Synopsis show tech support Description This command is a wrapper around various other commands that are useful when troubleshooting The output lists all the commands being invoked Mode Privileged EXEC EOS User Manual 163 CHAPTER 2 CLICOMMANDS l show trace Name show trace Displays trace related settings for an Agent Synopsis show trace agent name Description Displays the trace settings for an Agent An Agent is a task running on the system and advanced troubleshooting can be done by tracing through the Agent software It is recommended that you use this command with help of a support representative Mode Privileged EXEC EOS User Manual 164 CHAPTER 2 CLICOMMANDS l show uptime Name show uptime Show how long the system has been running Synopsis show uptime Description Displays a one line summary with the following information The current time HH MM SS How long the system has been running How many users are currently logged in System load averages for the past 1 5 and 15 minutes Mode EXEC See Also show processes show processes top EOS User Manual 165 CHAPTER 2 CLICOMMANDS l show users Name show users Displays details about users connected to the system Synopsis show users Description Displays details about users connected to the system eithe
113. r Boston MA 02110 1301 USA Also add information on how to contact you by electronic and paper mail If the program is interactive make it output a short notice like this when it starts in an interactive mode Gnomovision version 69 Copyright C year name of author Gnomovision comes with ABSOLUTELY NO WARRANTY for details type show w This is free software and you are welcome to redistribute it under certain conditions type show c for details The hypothetical commands show w and show c should show the appropriate parts of the General Public License Of course the commands you use may be called something other than show w and show c they could even be mouse clicks or menu items whatever suits your program You should also get your employer if you work as a programmer or your school if any to sign a copyright disclaimer for the program if necessary Here is a sample alter the names Yoyodyne Inc hereby disclaims all copyright interest in the program Gnomovision which makes passes at compilers written by James Hacker lt signature of Ty Coon gt 1 April 1989 Ty Coon President of Vice This General Public License does not permit incorporating your program into proprietary programs If your program is a subroutine library you may consider it more useful to permit linking proprietary applications with the library If this is what you want to do use the GNU Lesser General
114. r through the serial console or through telnet or ssh The output shows the incoming and outgoing sessions per user and their idle time Mode Privileged EXEC See Also username secret show aaa sessions EOS User Manual 166 CHAPTER 2 CLICOMMANDS l show version Name show version Display the software and hardware versions Synopsis show version Description Displays the hardware and the current software version In addition the serial number of the system and the uptime are also displayed Mode EXEC See Also show boot config EOS User Manual 167 CHAPTER 2 CLICOMMANDS l show vlan Name Synopsis Description Mode See Also show vlan Display operational status and port membership for configured VLANs show vlan id vianId name vianName configured ports active configuration show vlan summary This command displays the status of all configured VLANs The output includes the VLAN id name status and port membership for all configured VLANs By default the command only dis plays ports that are part of the active configuration However by specifying configured ports the command will display all ports that are members of a configured VLAN For example a physi cal port that is a member of a port channel inherits the VLAN configuration of the port channel and the per port VLAN configuration is ignored Such a port will not be displayed in the active configurati
115. rite terminal Through this command the running configuration may be deleted displayed or saved The write erase command erases the startup configuration file and is equivalent to the erase startup config command The write memory command copies the current running configuration to the startup configuration file and is equivalent to the copy running config startup config command The write network command copies the current running configuration to a file over the network and is equivalent to the copy running config url command The write terminal displays the current running configuration and is equivalent to the show running config command Privileged EXEC erase startup config copy show running config EOS User Manual 202 CHAPTER 3 FILE FORMATS Chapter 3 File Formats EOS User Manual 203 CHAPTER 3 FILE FORMATS l running config Name running config Current operation configuration Description The running config is a virtual file that contains the current operation configuration of the system formatted as a sequence of configuration commands The running config may be viewed with the command show running config It is modified every time a configuration command is entered from the CLI Copying a stored configuration file to the running config with the copy command has the effect of updating the operating configuration by executing the commands from the file Files system running config The run
116. s Our decision will be guided by the two goals status of all derivatives of our free software and g and reuse of software generally NO WARRANTY 11 BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE THERE IS NO WARRANTY FOR THE PROGRAM TO THE OTHERWISE STATED IN WRI PROVIDE THE PROGRAM AS PROGRAM PROVE DEFECTIVE REPAIR OR CORRECTIO 12 IN NO EVENT UNLES EXTENT PERMITTED BY APPLICABLE LAW EXCEPT WHEN TING THE COPYRIGHT HOLDERS AND OR OTHER PARTIES IS WITHOUT WARRANTY OF ANY KIND EITHER EXPRESSED OR IMPLIED INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF ERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU SHOULD THE YOU ASSUME THE COST OF ALL NECESSARY SERVICING S REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER OR ANY OTHER PARTY WHO MAY MODIFY AND OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE BE LIABLE TO YOU FOR DAMAGES INCLUDING ANY GENERAL SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA YOU OR THIRD PARTIES OR PROGRAMS EVEN IF SUCH POSSIBILITY OF SUCH DAMAGES BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
117. s speed duplex and flow control information In addition basic statistics of the interface s are displayed The show interfaces command is helpful in getting a quick summary of the state of all interfaces If you are looking for just the link status you may find the show interfaces status command more helpful Mode EXEC See Also show interfaces status Interface Range Syntax EOS User Manual 101 CHAPTER 2 CLICOMMANDS l show interfaces capabilities Name show interfaces capabilities Display capabilities of all interfaces Synopsis show interfaces interface range capabilities Description Displays capabilities of the specified interfaces or all interfaces if no range is specified The output includes speed duplex and flow control capabilities of the interface s Mode EXEC See Also show interfaces status Interface Range Syntax EOS User Manual 102 CHAPTER 2 CLICOMMANDS l show interfaces counters Name show interfaces counters Displays interface packet and byte counters Synopsis show interfaces interface range counters Description Displays the packet and byte counters per interface The output is more detailed than the summary in show interfaces command Mode EXEC See Also show interfaces Interface Range Syntax EOS User Manual 103 CHAPTER 2 CLICOMMANDS l show interfaces counters bins Name show interfaces counters bins Displays interface received
118. same information displayed for all interfaces by the show spanning tree command Here is an example of the command output localhost show spanning tree interface ethernetl Instance Role State Cost Prio Nbr Type Et1 designated forwarding 2000 128 1 P2p Mode EXEC EOS User Manual 154 CHAPTER 2 CLICOMMANDS l show spanning tree interface detail Name show spanning tree interface detail Display a detailed description of the spanning tree protocol state for a given interface Synopsis show spanning tree interface interface detail Description The show spanning tree interface detail command displays a detailed description of the spanning tree protocol information for the given interface This is the same information displayed for all interfaces by the show spanning tree detail command Here is an example of the command output localhost show spanning tree interface ethernet1 detail Port 1 Ethernet1 of Rstp is designated forwarding Port path cost 2000 Port priority 128 Port Identifier 128 1 Designated root has priority 32768 address 001c 7301 0089 Designated bridge has priority 32768 address 001c 7301 0089 Designated port id is 128 1 designated path cost 0 Timers message age 0 forward delay 15 hold 20 Number of transitions to forwarding state 1 Link type is point to point by default Internal BPDU sent 136717 received 0 Mode EXEC EOS User Manual 155 CHAPTER 2 CLICOMMANDS Name show spanning
119. se time seconds no ip igmp snooping querier vlan vian range querier max response time ip igmp snooping querier vlan vlan range querier address ip address no ip igmp snooping querier vlan vlan range querier address The querier commands can be used to set querier properties for layer 2 querier functionality The command no ip igmp snooping querier can be used to enable or disable the querier The global default setting is disabled The vlans by default follow the global setting and can override it with vlan specific setting The default form of the command resets the vlan enabled state to use global setting The command ip igmp snooping querier query interval can be used to set the querier query interval The allowed values are 5 3600 seconds The global default setting is 125 seconds The vlans by default follow the global setting and can override it with vlan specific setting The no form of the command resets the property value to its default setting Note that setting the querier query interval will also cause the switch to configure its membership querier timeouts etc appro priately The command ip igmp snooping querier max response time can be used to set the query response interval that the querier uses in the query packets that it sends out The allowed values are 1 25 seconds The global default setting is 10 seconds The vlans by default follow the global setting and can o
120. sentative to run these tests they are not yet designed to be run independently You can enter exit to return to the Privileged EXEC mode Privileged EXEC show diagnostic result EOS User Manual 29 CHAPTER 2 CLICOMMANDS l diff Name diff Diff two urls Synopsis diff first url second url Description Compares two urls and displays the differences in the form of a unified diff Mode Privileged EXEC See Also startup config running config EOS User Manual 30 CHAPTER 2 CLICOMMANDS l Name Synopsis Description Mode See Also dir List files and directories dir recursive all ur all filesystems List information about files and directories Entries are sorted alphabetically If url is specified that file is listed plus its contents if it is a directory url may be a wildcard in which case all matching files and directories are listed If all filesystems is specified the contents of the root directory on all filesystems are listed If neither url nor all filesystems is specified the contents of the current working directory are listed If recursive is specified the contents of any subdirectories are listed recursively If all is specified all files will be listed including hidden files For each file or directory the information presented comprises in this order the file s permissions Directory Read Write and eXecute the file s size in bytes the mo
121. setup static routes You can specify an outgoing interface to send packets to or specify the IP address of the forwarding router Mode Global Configuration See Also show ip route EOS User Manual 55 CHAPTER 2 CLICOMMANDS l lacp port priority Name lacp port priority Set the LACP port priority Synopsis lacp port priority number no lacp port priority number Description Set the LACP port priority to number number may be an integer between 0 and 65535 inclusive The default is 32768 To return the port priority to its default value use the no form of this command Mode Interface Configuration See Also interface port channel lacp system priority show port channel show lacp EOS User Manual 56 CHAPTER 2 CLICOMMANDS l lacp rate Name lacp rate Set the LACP requested transmission rate for this interface Synopsis lacp rate fast slow no lacp rate Description The LACP protocol allows a device to request whether its peer should transmit every 30 seconds slow or every 1 second fast Since the Arista Networks LACP implementation can detect link failure the default is slow There is normally no reason to configure this value Mode Interface Configuration See Also interface port channel show port channel show lacp EOS User Manual 57 CHAPTER 2 CLICOMMANDS l lacp system priority Name lacp system priority Set the LACP system priority Synopsis lacp sys
122. show inventory Name show inventory Display hardware inventory with serial numbers Synopsis show inventory Description Displays all hardware and related serial numbers associated with the switch Mode EXEC EOS User Manual 114 CHAPTER 2 CLICOMMANDS l show ip igmp snooping Name show ip igmp snooping Show IGMP Snooping status Synopsis show ip igmp snooping vlan vlanld Description This command can be used to see global or per vlan igmp snooping status See Also ip igmp snooping EOS User Manual 115 CHAPTER 2 CLICOMMANDS l show ip igmp snooping co Name show ip igmp snooping counters Show multicast packet counters Synopsis show ip igmp snooping count vlan vlanld detail Description This command can be used to see the packet counters for multicast control packets going out or coming in on various interfaces The list can be filtered by specifying a vlanId EOS User Manual 116 CHAPTER 2 CLICOMMANDS l show ip igmp snooping gr Name show ip igmp snooping groups show multicast groups status Synopsis show ip igmp snooping groups count dynamic user detail show ip igmp snooping groups vlan vlanid count A B C D dynamic user detail Description This command can be used to see the status of multicast groups The list can be filtered according to vlanId and or group type See Also ip igmp snooping vlan static EOS User Manual 11
123. sk of an Arista Networks switch so there must be enough space available on the flash disk to hold the extension The dir extension command may be used to report available space on this filesystem To uninstall an extension use the no extension command The force option can be used to attempt to force the extension to install ignoring certain errors such as missing dependencies or incorrect digital signatures Arista Networks does not recommend use of the force option When an extension fails to install there is typically a good reason such as required packages not being installed or corruption in the extension file If an extension fails to install without the force option please contact the developer of that extension for support Global Configuration copy delete show extensions show loaded extensions EOS User Manual 42 CHAPTER 2 CLICOMMANDS l hostname Name hostname Configure the system hostname Synopsis hostname string no hostname Description The hostname command can be used to configure the system hostname Note that the hostname configured using the hostname command can also be used as the h variable in the prompt command Mode Global Configuration See Also prompt EOS User Manual 43 CHAPTER 2 CLICOMMANDS l 7 t Name int Filter configuration lines to include only those for a given interface or set of interfaces Synopsis int pattern pattern Description You can use
124. t is 20000 The command accepts a value in the range from 1 to 200 000 000 The cost parameter specifies the path cost value used by the spanning tree protocol Providing a value with this command overrides the interface speed based default value Lower path cost values make the interface more likely to be used as the root port of the switch The no form of the command reverts the cost to the default value Mode Interface Configuration EOS User Manual 176 CHAPTER 2 CLICOMMANDS l spanning tree forward time Name spanning tree forward time Set the value of the spanning tree protocol forwarding time param eter Synopsis spanning tree forward time seconds no spanning tree forward time Description The forward time parameter defaults to 15 seconds The command accepts a value in the range from 4 to 30 seconds The no form of the command reverts the forwarding time to the default value Mode Global Configuration EOS User Manual 177 CHAPTER 2 CLICOMMANDS l spanning tree link type Name spanning tree link type Specify whether the interface connects to a shared media network or a point to point link Synopsis spanning tree link type point to point shared no spanning tree link type Description The spanning tree link type defaults to point to point If the interface connects to a shared media network use this command to let the spanning tree protocol know Certain optimizations within the spanning tree pr
125. te that the access VLAN only has significance when the interface is in access mode as configured by the switchport mode access command If the interface is in trunk mode then the configured access VLAN is stored in the running configuration but has no effect until the interface is put into access mode Mode Interface Configuration See Also switchport mode show interfaces switchport EOS User Manual 187 CHAPTER 2 CLICOMMANDS switchport backup interface Name Synopsis Description switchport backup interface Set the backup interface for the current interface switchport backup interface interface switchport backup interface interface prefer vlan vlan list no switchport backup interface switchport backup interface configures the current interface as a primary interface and the inter face given as an argument as its backup In this configuration only one of the primary and backup interfaces is allowed to forward traffic for a vlan at any time When the primary interface is up and running it forwards traffic for all of the vlans carried by the pair while the backup interface drops all traffic for all of the vlans carried by the pair If the primary interface fails the backup interface takes over forwarding for the vlans When the primary interface comes back up it takes over forwarding for the vlans again Backup interface pairs are usually used in place of the Spanning Tree protocol in an access switch wit
126. tem priority number no lacp system priority Description Set the LACP system priority to number number may be an integer between 0 and 65535 inclusive The default is 32768 To return the system priority to its default value use the no form of this command Mode Global Configuration See Also lacp port priority show port channel show lacp EOS User Manual 58 CHAPTER 2 CLICOMMANDS l load interval Name load interval Set the load interval for interface rate counters Synopsis load interval interval Set the load interval no load interval Reset the load interval to default value of 300s Description The load interval determines the how the interface rate counters are calculated The interface rates are exponentially weighted moving averages such that after 4 load interval periods the previous samples count for less than 2load interval periods the displayed rate will be within 2stable rate Valid values for load interval are between 5s and 600s Mode EXEC See Also show interfaces show interface counters EOS User Manual 59 CHAPTER 2 CLICOMMANDS l logging buffered Name logging buffered Configure logging to a system buffer Synopsis logging buffered buffer size severity no logging buffered Description This command can be used to enable and or configure buffered logging The optional buffer size a number between 10 and 2147483647 configures the number of messages that are store
127. tep is not needed Set the active image with boot system Save the configuration and reload Verify the new image is running 1 The desired image must be loaded onto the system As the flash filesystem is persistent it is generally recommended to copy any EOS swi image to the flash and to instruct the switch to load the image from flash on boot Loading the EOS swi image file is done with the copy command specifying a file source and a file destination While the source and destination can change the syntax is consistent copy image source image destination Below are examples of the copy command in use with various source locations COPY USB localhost copy usb1 E0S 2 2 0 swi flash EOS 2 2 0 swi localhost EOS User Manual 1 CHAPTER 1 UPGRADE PROCEDURE COPY FTP localhost copy ftp user password 10 0 0 3 E0S 2 2 0 swi flash EOS 2 2 0 swi EOS 2 2 0 swi at 13494888 12 1 94M s eta 47s Receiving data localhost COPY SCP localhost copy scp user password 172 17 10 21 var user EOS 2 2 0 swi flash EOS 2 2 0 swi localhost COPY HTTP localhost copy http 10 0 0 10 E0S 2 2 0 swi flash EOS 2 2 0 swi E0S 2 2 0 swi at 13647872 12 1 97M s eta 46s Receiving data localhost 2 Update boot config During switch boot up the boot config file is read by the aboot process to determine which swi image should be loaded Once you have transferred the desired image file onto the system update t
128. th the output will be paused after each screenful of output prompting the user to continue The lines argument in an integer between 0 and 32767 inclusive A setting of 0 disables pagination for the terminal By default all console sessions have pagination disabled The pagination settings must be configured for each session Users connecting to the switch via ssh may have pagination set automatically by the ssh client To disable pagination set terminal length to 0 Note that whenever you adjust the size of the ssh window pagination may be re enabled Mode EXEC EOS User Manual 198 CHAPTER 2 CLICOMMANDS l traceroute Name traceroute Trace packet route to destination Synopsis traceroute destination Description Trace packet route to the specified destination The destination can be specified as a hostname or an IP address Mode EXEC See Also show ip route EOS User Manual 199 CHAPTER 2 CLICOMMANDS l username secret Name username secret Set password for a given user account Synopsis username name secret 0 password username name secret 5 encrypted password username name nopassword no username name Description Set the password required to log in using the given username The first form sets the user s password to the given plaintext password Use this form when typing a password by hand The second form takes a secure hash of the password known as the encrypted passwor
129. the int command as a filter after a on the output of commands such as show running config and show startup config to restrict the output to include only the configuration of interfaces matching one of the given patterns The name patterns can be full or abbreviated interface names interface name ranges or regular expressions For example to display the configuration for interface Ethernet use the command show running config int Ethernetl Abbreviated and lower case interface names are accepted as well and these can be combined with a range to display the configuration for more than one interface For example to display the configu ration for interfaces Ethernet and Ethernet2 in the startup config use the command show startup config int ethl eth2 or show startup config int ethl 2 You can also use regular expression syntax in the interface name pattern For example to display the configuration for interfaces Vlan1 Vlan3 and Vlan5 use the command show running config int vlan 1 3 5 Mode Privileged EXEC EOS User Manual 44 CHAPTER 2 CLICOMMANDS l interface Name interface Configure one or more interfaces Synopsis interface interface interface interface range no interface interface Description The interface configuration command can be used to configure an interface or a range of interfaces Using this command you can configure the interface description flowcontrol configuration if appli cable c
130. therne Etherne Etherne Etherne Mode EXEC EOS User Manual 158 CHAPTER 2 CLICOMMANDS l show spanning tree vlan Name show spanning tree vlan Display a summary of the spanning tree protocol information for the given vlan Synopsis show spanning tree vlan vlan id Description The show spanning tree vlan command displays a summary of the spanning tree protocol informa tion for the given vlan Currently all vlans are mapped to a single spanning tree instance so the out put of this command is the same as the show spanning tree command Here is an example of the command output localhost show spanning tree vlan 2 Rstp Spanning tree enabled protocol rstp Root ID Priority 32768 Address 001c 7301 0089 This bridge is the root Bridge ID Priority 32768 priority 32768 sys id ext 0 Address 001c 7301 0089 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Interface Role State Cost Prio Nbr Type Et1 designated forwarding 2000 128 1 P2p Et 2 designated forwarding 2000 128 2 P2p Et designated forwarding 2000 128 3 P2p Et 4 designated forwarding 2000 128 4 P2p Et 20 designated forwarding 2000 128 20 P2p Et24 backup discarding 2000 128 24 P2p Mode EXEC EOS User Manual 159 CHAPTER 2 CLICOMMANDS l show startup config Name show startup config Display the contents of the startup configuration Synopsis show startup config Description Displays the contents of the startup configuration fi
131. tion Displays the IP information for an interface If no interface is specified IP information for all interfaces is displayed Mode EXEC See Also show ip route ip route EOS User Manual 121 CHAPTER 2 CLICOMMANDS l show ip route Name show ip route Display the current routing table entries of the system Synopsis show ip route Description Display the current routing table entries of the system The displayed entries include all static routes and dynamically learnt routes To configure routes statically you can use the ip route configuration command Mode EXEC See Also ip route EOS User Manual 122 CHAPTER 2 CLICOMMANDS l show lacp Name Description Synopsis show lacp Display LACP related information show lacp number counters internal neighbor sys id aggregates detailLevel all ports Display LACP related information about port channels and physical interfaces that are configured to use LACP When number is included then show lacp displays information about members of port channel number only When number is not included all port channels are dis played show lacp interface interface detailLevel Display LACP related information about port channels and interfaces that are configured to use LACP When interface is included displays infor mation about interface interface otherwise all interfaces are displayed The optional detailLevel contr
132. tion config commands Name Synopsis Description Mode See Also aaa authorization config commands Enable authorization of configuration commands aaa authorization config commands no aaa authorization config commands Enables authorization of configuration commands meaning any command in a configuration mode such as Global Configuration Mode or Interface Configuration Mode The default setting is to authorize configuration commands using the same policy as for all other commands no aaa authorization config commands disables authorization of configuration commands An administrator might want to use this command to simplify their command authorization policy If an administrator configures a TACACS server to deny all commands except for those in a specified whitelist the number of rules required to allow all necessary configuration commands is large If the policy is such that any user who may enter Global Configuration Mode is allowed to run any configuration command then no aaa authorization config commands may allow many fewer rules to be configured on the TACACS server Global Configuration aaa authorization EOS User Manual 9 CHAPTER 2 CLICOMMANDS l aaa group server Name Synopsis Description Mode See Also aaa group server Configure an AAA server group aaa group server tacacs group name no aaa group server tacacs group name The aaa group server command is used t
133. topology status for active vlan interface combinations show spanning tree topology vlan vianId status show spanning tree topology status Display the forwarding state programmed into the hardware The show spanning tree topology status command displays the forwarding state currently pro grammed into the packet forwarding hardware for active vlan interface combinations The output can be limited to the information for a single vlan using the optional vlan vlanId argument Be aware that many vlans can be mapped to a single topology For example when the spanning tree mode is configured to rstp all active vlans are mapped to the same topology Also be aware that only active port and vlan combinations are included in the output If a port is link down it is not active in any topology and will not be show by this command Here is an example of the command output when running in rstp mode and all ports are forwarding Mapped Vlans EL t12 t22 C258 t26 EZ t43 t44 t45 t46 1 10 20 for for for for for for for for for for rdi rdi rdi rdi rdi rdi rdi rdi rdi rdi ng ng ng ng ng ng ng ng ng ng In this output we see that vlans 1 and 10 through 20 are all mapped to the Rstp topology This switch is the root of the network so all link up ports are forwarding Name Synopsis Description Topology Rstp Etherne Etherne Etherne Etherne Etherne Etherne E
134. trunk Operational Mode trunk Access Mode VLAN 2 VLANO002 Trunking Native Mode VLAN 13 VLAN0013 Trunking VLANs Enabled 1 2 7 10 20 EXEC switchport mode trunk switchport access vlan switchport trunk allowed vlan switchport trunk native vlan Interface Range Syntax EOS User Manual 110 CHAPTER 2 CLICOMMANDS show interfaces switchport backup Name Synopsis Description show interfaces switchport backup Display the running state of backup interface pairs show interfaces interface switchport backup show interfaces switchport backup displays the current running state for configured backup inter face pairs When a specific interface argument is given only the state for the pair containing that interface is displayed For each pair the command displays the members of the pair the role and state of each interface and the vlans that are currently forwarding on each interface For example consider the following configuration vlan 1 20 spanning tree mode backup interface Ethernet11 switchport mode trunk switchport backup interface Ethernet12 prefer vlan 11 20 interface Ethernet12 switchport mode trunk With both links up the output of the show interfaces switchport backup command is localhost show interfaces switchport backup Switch backup interface pair Ethernet11 Ethernet12 Primary Interface Ethernet11 State Up Backup Interface Ethernet12 State Up Ethernet11 forwarding vlans 1
135. uth priv read view name notify view name no snmp server group group name v1 v2c v3 The snmp server group configuration command can be used to create an SNMP group or to replace an existing group Each group may optionally be associated with a read view and a notify view for access control If no read view or notify view is specified the group has access to all objects provided by the SNMP agent To remove a SNMP group use the no snmp server group command Global Configuration show snmp group show snmp view snmp server view EOS User Manual 172 CHAPTER 2 CLICOMMANDS l snmp server host Name Synopsis Description Mode See Also snmp server host Configure the specified host to receive SNMP traps or informs snmp server host hostname or address traps informs version 1 2c 3 auth noauth priv security name udp port port The snmp server host configuration command is used to configure the SNMP agent to send traps or informs notifications to an SNMP management station The host may be specified either by hostname if the switch has a valid DNS configuration or by IP address If neither traps nor informs are not specified traps will be sent Protocol version 1 will be used if no protocol version is specified Note that SNMPv1 does not support informs so it is an error to specify informs with protocol version 1 The security name argument should be a community string for prot
136. ve vlan vlanid no switchport trunk native vlan default switchport trunk native vlan The switchport trunk native vlan command configures the native VLAN of an interface that is in trunk mode The vlanId argument must be an integer in the range 1 through 4094 When the interface is in trunk mode the native VLAN is the VLAN used for untagged traffic on the interface Untagged frames received on the interface are associated with the native VLAN Frames that are associated with the native VLAN are sent over the interface untagged The no and default forms of the command both revert the native VLAN to the default value of 1 Note that the native VLAN only has significance when the interface is in trunk mode as configured by the switchport mode trunk command If the interface is in access mode then the configured native VLAN is stored in the running configuration but has no effect until the interface is put into trunk mode Interface Configuration switchport mode switchport trunk allowed vlan show interfaces switchport EOS User Manual 193 CHAPTER 2 CLICOMMANDS l tacacs server host Name Synopsis Description Mode See Also tacacs server host Set the parameters used to communicate with a TACACS server tacacs server host hostname or address single connection port 65535 timeout 7 7000 key encryption key no tacacs server host hostname or address port 1 65535 The tacacs server host configur
137. verride it with vlan specific setting The no form of the command resets the property value to its default setting The command ip igmp snooping querier address can be used to set the querier ip address This address is used for sending query packets as well as for participating in querier election The global default setting is None The vlans by default follow the global setting and can override it with vlan specific setting The no form of the command resets the property to its default setting Global Configuration EOS User Manual 49 CHAPTER 2 CLICOMMANDS See Also show ip igmp snooping querier EOS User Manual 50 CHAPTER 2 CLICOMMANDS l ip igmp snooping robustness Name Mode Synopsis Description See Also ip igmp snooping robustness variable Configure IGMP snooping robustness variable no ip igmp snooping robustness variable 7 3 This command can be used to configure robustness variable value The value indicates the number of query intervals required to age out a port s membership in a group The default value is 2 Global Configuration show ip igmp snooping EOS User Manual 51 CHAPTER 2 CLICOMMANDS l ip igmp snooping mrouter Name ip igmp snooping vlan mrouter Configure static multicast router interfaces Synopsis no ip igmp snooping vlan lt vlan range gt mrouter interface lt interface gt Description This command can be used to add or rem
138. w interfaces Et44 48 status localhost config interface Et5 10 Description An interface range specifies a list of interfaces for configuration or status display purposes Inter face ranges make it more convenient to configure or view several interfaces at once An interface range is not itself a command but rather appears as part of a command such as show interfaces or interface The general syntax for an interface range is as follows The range starts with an interface type keyword such as Ethernet or Vlan The type keyword is followed by a comma separated list of values Each value in the list may either be an interface number of a pair of numbers separated by a dash The special value means the last port on the system For example the range Ethernet 1 repre sents all Ethernet ports See Also show interfaces interface EOS User Manual 5 CHAPTER 2 CLICOMMANDS l aaa authentication enable Name Synopsis Description Mode See Also aaa authentication enable Set the authentication method list for the enable command aaa authentication enable default method 1 method 2 method n no aaa authentication enable default The enable authentication method list controls which authentication methods are invoked and in which order to authenticate the enable command For example you may wish to attempt to authen ticate against a TACACS server but if that server is unavailable fall back to the lo

EOS User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents