HP T1453-90001 User's Manual
Contents
1. S or x station address A and reset the MTU R and interactive mode options reset and special are not supported for VPPAs 6 lanadmin interactive mode displays and clears driver statistics for VPPAs 27 Overview of Installation and Configuration Special Case of VLAN ID 0 Priority Tagged Frames Special Case of VLAN ID O Priority Tagged Frames VLAN ID 0 means that the frame doesn t belong to any VLAN but has 802 1p priority information Ensure that any switches used with HP UX VLANs support VLAN ID 0 Promiscuous Mode Characteristics Only one stream can be running in unfiltered promiscuous mode per physical interface plus all its VLAN interfaces put together The promiscuous stream will be able to see all frames transmitted or received on the physical LAN card port all tagged and untagged 28 Chapter 2 Overview of Installation and Configuration Allowable Values for HP VLANs ee Allowable Values for HP VLANs Table 2 2 lists the allowable values for configuring VLANs in the etc rc config d vilanconf file It describes the parameter functions default values and allowable ranges For the format of the etc rc config d vlanconf file refer to Configuring VLANs by Editing vlanconf File in this document Table 2 2 Allowable Values for Parameters in vianconf File Parameter Range and description Restrictions Default Type VLAN_ID2. validate switches in path support VLANs and remote host supports them as well Otherwise reconfigure network path or configure VLANs on remote host and or switches then repeat ping Test Return tolinkloop test If you receive an unknown hosts error add the missing host name and repeat ping Test If you receive error SendTo No route to host then using route add route table entry for the missing host and repeat ping Test Otherwise call HP 71 Troubleshooting NetTL Trace and Log of VLANs NetTL Trace and Log of VLANs The nett tool can be used to troubleshoot VLANs Following is a sample trace output from a Gigabit Ethernet card Tracing Output from a Gigabit Ethernet Card RMNAR READE ARERR NEADS GS cra batt Ethernet LAN 9000 Networking 22AAAANANANAAASAA Timestamp Wed Nov 07 PST 2001 11 08 03 961449 Process ID LICS Subsystem GELAN User ID UID 1 Trace Kind PDU IN TRACE Device ID ame Path ID 1 Connection ID 2 0 Location 00123 Ethernet Sourc 00 10 83 05 16 7 LTJ I Dest 00 10 83 05 16 7d I TRACED LEN 1480 VLAN ID 0x4 Priority 0x2 CFI 0x0 Date Wed Nov 07 11 08 03 961449 PST 2001 IP Header inbound ICS Source 101 3 102 47 A Dest 101 3 102 61 A len 1462 ttl 255 proto 1 cksum 0x218a id Oxbe49 flags DF tos 0x0 hdrlen 20 offset 0x0 optlen 0 ICMP Header type ECHOREPLY chksum 0x779c
3. Properties of a VLAN Properties of a VLAN When a VLAN is created on a given LAN card port See Creating a VLAN the system generates a virtual PPA or VPPA which can be used to send and receive 802 1Q tagged frames on that LAN card Each HP UX VLAN has a Virtual PPA associated with it A VPPA has essentially the same properties as a physical point of attachment PPA on a LAN card The differences are 1 A VPPA is associated with a VLAN the properties of which are determined by the create or modify command The PPA of a physical interface doesn t have a VLAN associated with it 2 A VLAN doesn t have a unique hardware instance VPPA values are assigned such that they don t overlap with hardware instance numbers of physical interfaces on the system Note the PPA assigned toa LAN card port is the same as its hardware instance number 3 A VLAN shares all the link properties of the physical interface on which it is configured Any changes to the underlying physical interface will be propagated to all its VPPAs In the sample lanscan output in the section Displaying a VLAN and its Properties lan5000 shares all the properties Such as speed duplexity MTU MAC address of the physical port with which it is associated lan0 4 All frames transmitted via a VPPA are VLAN tagged Frames transmitted via a physical PPA are sent untagged 5 lanadmin non interactive mode options to set the value of MTU speed
4. ai ae ka in FG1 Fail over group 1 FG2 Fail over group 2 FG3 Fail over group 3 Chapter 2 31 Overview of Installation and Configuration How is 802 1p Priority Set Table 2 3 32 How is 802 1p Priority Set IP packets are classified and marked into different priority levels and the markings are transported through a type of service ToS octet in the Pv4 header and a traffic class field in the Pv6 header HP UX end stations transmit I Pv4 type of service ToS values but do not enforce priority The end stations perform ToS to 802 1p conversion and vice versa for IP packets depending on how the VLAN overrides are set They also allow 802 1p priority setting for non IP packets Priority may be set by user destination address input port output port access priority or by VLAN User priority is a 3 bit field which allows priority information to be encoded in the frame The eight levels of IEEE 802 1p recommended user priorities are shown in Table 2 3 ToS to 802 1 User Priority Mappings Based on IP Precedence seems ae Ais Priority OxE 0 OxF F 7 highest Network Management OxCO OxDF 6 Voice OxA0 OxBF Video 0x80 Ox9F Controlled Load 0x60 Ox7F Excellent Effort 0x40 Ox5F 0 routine Best Effort traffic 0x20 Ox3F 2 Undefined 0x00 Ox1F 1 lowest Background Chapter 2 Chapter 2 Overview of Installation and Configuration How do Pri and ToS Override
5. and formats Once a VLAN has been configured you can modify its properties even if it is in the Enabled state 40 Chapter 3 Configuring VLANs Using SAM Configuring VLANs Using SAM On the Modify VLAN Properties screen the fields are all optional the data elements are the same as discussed in the chapter Overview of Installation and Configuration VLAN name VPPA priority ToS and overrides Figure 3 4 Add an IP Address for the VLAN Configure IP Address Interface Name 1an5000 Physical Interface land Hardware Path VLAN5000 Internet Address 0 0 0 d Add Host Name Subnet Mask optional Comments optional Internet Broadcast Address optional Cance 7 At any time view the online help pulldown menu for doing any of the listed tasks or for finding help on a specific field Chapter 3 41 Configuring VLANs Using SAM Configuring VLANs Using SAM 42 Chapter 3 Chapter 4 Configuring VLANs by Editing vianconf File 43 Configuring VLANs by Editing vlanconf File Modifying Parameters in vianconf File vlanconf VLAN_PHY_IN VLAN_ID VLAN_PRIORI VLAN_TOS VLAN_PRI_OV 44 Modifying Parameters in vianconf File Following is the format of the etc rc config d vianconf file To permanently save changes to this file either use SAM or use a text editor such as vi If you use the Lanadmin command line interface to make changes to VLANs your configuration will not be prese
6. and then use the Create VLAN pulldown Figure 3 2 the Create VLAN screen appears Figure 3 3 For the VLAN ID enter any number between 0 and 4094 and use it only once within that port NOTE The VLAN ID is not the same as the number of VLANs supported HP UX supports up to 1024 VLANS per LAN card port Figure 3 2 Action Pulldown for Creating Virtual LANs On this screen you can optionally add a VLAN Name 31 chars and unique within a LAN card priority ToS and overrides See the chapter Overview of Installation and Configuration or the online help for details Chapter 3 39 Configuring VLANs Using SAM Configuring VLANs Using SAM Figure 3 3 Create Virtual LANs Paysical Interface VLAN 0 iagi After you have assigned a VLAN ID the VLAN then shows on the main screen with the status Not Configured You then highlight the VLAN and select the Configure IP Address pulldown action This displays the Add an IP Address for the VLAN screen Figure 3 4 After you have configured an IP address for the VLAN its status on the main screen will show as Enabled Assign VLAN IDs to each VLAN Ensure that the assignments are consistent across endstations and switches otherwise stations will not communicate with each other NOTE On a switch or end station all the frames for a specific VLAN must be either tagged or untagged All devices in a VL AN s data path must be VLAN aware one that understands VLAN membership
7. are any applications running on it by typing lanadmin p 5001 ifconfig ifconfig mib2agt sScopeux In addition to IP and ARP being configured on the interface two applications mib2agt and scopeux are using the interface These applications are started during system bootup via the startup scripts sbin rc2 d S565SnmpMib2 and sbin rc2 d S810mwa respectively To stop these utilities run the stop sequence of the scripts To delete the lan5001 interface type the following commands ifconfig 1an5001 unplumb sbin rce2 d S565SnmpMib2 stop sbin rc2 d S810mwa stop Now lanadmin p 5001 will not display anything and the interface can be deleted using lanadmin V delete vppa Once the interface is deleted you can restart the script by issuing the start Sequence sbin rc2 d S565SnmpMib2 start sbin rce2 d S810mwa start NOTE The start and stop sequence of the startup scripts will affect all the interfaces on the system and they must be restarted once the delete operation is completed The output from the commands just described may not look exactly the same on your system The output can vary depending on the applications using the interfaces in your environment Chapter 5 53 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs 54 Chapter 5 Appendix A Troubleshooting 55 56 Troubleshooting This chapter provides guidelines for troubleshooting VLANs It contains the fol
8. ee e ee 24 Table 2 2 Allowable Values for Parameters in vianconf File 29 Table 2 3 ToS to 802 1 User Priority Mappings Based on IP Precedence 32 Table 2 4 Allowable Settings for VLAN_PRI_OVERRIDE Valuein vlanconf File 33 Table 2 5 Allowable Settings for VLAN_TOS OVERRIDE Valuein vianconf File 34 Table A 1 Flowchart Descriptions seveeeeee ee ee ee ee ee ee rick 57 Tables Figure 1 1 Figure 1 2 Figure 1 3 Figure 2 1 Figure 2 2 Figure 2 3 Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure A 1 Figure A 2 Figure A 3 Figure A 4 Figure A 5 Figure A 6 Figure A 7 VLANs Virtual LANsS Ls tree ee ede RN Oe ou aye a as atte th Bad 10 IEEE 802 1Q VLAN Tagin Ethernet Frame 2 00 5 15 VLANS Overlapping or Sharing the Same LAN Card Port 16 Communication between VLANS Requires an External Router 22 Tagged and Untagged VLAN Technology in Same Network 23 VLANs and Service GuaiGic ood sige bee he Wad wate eee hd awa Be 31 List Pulldown with Virtual LANs Displayed 38 Action Pulldown for Creating Virtual LANS see ee 39 Create Virtual LANS ssseeeee ethan ed SORE te Ble 4 acne 40 Add an IP Address for the VLAN 0 cc cee eee ees 41 Flowchart Wei at eset oe he oa tinee eta bee etree Oy eee eye es 59 Flowchart Iar sie etru aaa ne teach eee ee Pada aie tis ee 60 Flowchart LO Sh re te arc a Soe ute Ate at
9. gt range 0 4094 pri lt priority gt range 0 7 default 0 tos lt ToS value range 0 255 default 0 vppa lt vppa gt name lt name gt 31 characters alphanumeric string tos_override lt level gt IP_HEADER ETHER HEADER CONF_TOS or CONF_PRI default IP_HEADER pri_override lt level gt CONF_PRI IP_HEADER or CONF_TOS default CONF_PRI lt ppa gt V delete lt vppa gt V modify vlanid lt vlanid gt range 0 4094 pri lt priority gt range 0 7 tos lt ToS value range 0 255 name lt name gt 31 characters alpha numeric string tos_override lt level gt IP_HEADER ETHER_HEADER 48 Chapter 5 Chapter 5 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs CONF_TOS or CONF_PRI pri_override lt level gt CONF_PRI IP_HEADER or CONF_TOS lt vppa gt V scan V info lt vppa gt V basevppa V help Using lanadmin to Create a VLAN Assume that the system has the following configuration as shown by the lanscan command output lanscan Hardware Station Crd Hdw Net Interface NM MAC HP DLPI DLPI Path Address Inf State NamePPA ID Type Support Mjr 1 2 3 0x001083FF9951 0 UP lanO snap0 1 ETHER Yes 115 1 2 4 0x006023456789 1 DOWN lanl snapl 2 ETHER Yes 119 To configure a VPPA with VLAN ID 454 and a priority of 6 on lano execute the f
10. has been assigned a VLAN ID of 1 default values for VLAN priority VLAN ToS VLAN priority override VLAN ToS override the name Red and a VLAN PPA of 5000 ERFACE 0 lan0 LAN AN_N OS OV AME 0 ag si sh ae iadraas 46 ERRIDE 0 IP_HE ADE j Red LAN_VPPA 0 5000 R Chapter 4 Chapter 5 Using lanadmin V to Administer VLANs Using lanadmin V to Administer VLANs 47 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs Using the lanadmin V Command for Administering VLANs To configure VLANs you use either the GUI based system admin manager SAM or edit the configuration file with an editor VLAN configuration doesn t require a reboot to take effect If you use SAM your configurations will be preserved after reboots in a configuration file called etc rc config d vlanconf If you use the lanadmin command line interface your configuration will not be preserved after reboots unless you also save the configuration in the vianconf file by either using SAM or editing it See Modifying Parameters in vianconf File in this document for the format of the etc rc config d vianconf file lanadmin Syntax If you use the lanadmin command line interface to work with VLANs you can display the general usage string by typing lanadmin V help General usage string lanadmin V create vlanid lt vlanid
11. which it belongs and an end station receives unicast traffic addressed to it on the VLAN to which it belongs VLAN aware Devices such as switches and end stations that can recognize VLAN tags but they do not actually interpret them See also tag aware VLAN ID A VLAN ID uniquely identifies the VLAN to which a frame belongs VLAN tag A 4 byte extension to the MAC header consisting of a 2 byte VLAN protocol ID Ox8100 and 2 bytes of tag control information VLAN tags enable traffic from more than one VLAN to use the same port VPPA see Virtual PPA Glossary Glossary VPPA 77 Glossary Virtual PPA or VPPA 78 Glossary
12. 0 snap5000 14 ETHER Yes 119 Extended Station LLC Encapsulation Address Methods 0x001083FF9951 Driver Specific Information vlan Vlan ID Phy PPA Priority ToS Priority Override ToS Override Name 53 0 3 0 CONF_PRI IP_HEADER UNNAMED Using lanadmin to Delete a VLAN Before deleting a VLAN ensure that there are no applications or upper layer protocols active on the VLAN by running lanadmin p lt VPPA gt This command displays the applications and commands that are presently using the interface For example if the only thing done to lan5000 is configure an IP address the lanadmin p command output would look like lanadmin p 5000 ifconfig ifconfig Since ifconfig command is used to configure an IP address the same is displayed There are two entries because when an Pv4 address is configured using ifconfig it configures both IP and ARP on the interface To remove the IP and ARP streams do ifconfig 1an5000 unplumb The lanadmin p 5000 output will not show any entries now which means the interface can be deleted To delete this VLAN use the delete option as follows Chapter 5 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs lanadmin V delete 5000 The lanadmin p lt PPA gt command always displays the displays the applications and commands that use or are configured on the interface Lets take another example Before deleting the interface lan5001 check if there
13. AUTION Chapter 2 Overview of Installation and Configuration How to Configure VLANs on HP UX How to Configure VLANs on HP UX Choose Configuration Method Use SAM Edit vianconf Use lanadmin There are three ways to configure VLANs the first two methods preserve configuration changes across reboots the third applies changes immediately but doesn t preserve configuration changes across reboots To permanently save your configurations you can either e Usethe GUI based system admin manager SAM To use SAM refer to the instructions in Configuring VLANs Using SAM in this document for details and then do the steps for verifying VLANs Using SAM reduces risk of errors and saves your data permanently If you use SAM configuration doesn t require a reboot to take effect or e Edit the etc rc config d vianconf configuration file using an editor such as vi Changes will not take effect until the next reboot Refer to Configuring VLANs by Editing the vianconf File in this document for instructions on editing the configuration file for VLANs To temporarily configure VLANs on a live system you can e Usethe lanadmin command from the HP UX command line If you use the lanadmin command to administer VLANs those changes are not preserved across reboots See Using the lanadmin Command for Administering VLANs for details on the 1anadmin command 25 Overview of Installation and Configuration Configur
14. Affect My Inbound and Outbound frames How do Pri and ToS Override Affect My Inbound and Outbound frames Consider the following command lanadmin V create vlanid VID pri PRI tos TOS pri_override PO tos_override TO 6 This command will create a VLAN interface on PPA 6 with VID as the VLAN ID PRI as the 802 1p priority TOS as the Pv4 ToS value e All frames transmitted via the newly created interface will be VLAN tagged e TheVLAN ID field in the tag will be VID without exception e Please ncte that non IP packets are not affected by PO TO and TOS settings Outbound non IP packets are always tagged with VLAN ID VID and 802 1p priority PRI The following information applies only to inbound and outbound IP traffic e The802 1p priority valuein the VLAN tag is determined by the PRI PO and TOS settings as shown in Table 2 4 e TheToS value of an inbound IP packet header is determined by TOS TO and PRI settings as shown in Table 2 5 Table 2 4 Allowable Settings for VLAN_PRI_OVERRIDE Value in vilanconf File Priority Override Setting Outbound IP Packets CONF_PRI default VLAN Tag priority setting is PRI IP_HEADER VLAN Tag priority comes from ToS to 802 1p mapping table see Table 2 3 The ToS value is taken from the IP header 33 Overview of Installation and Configuration How do Pri and ToS Override Affect My Inbound and Outbound frames Table 2 4 Allowable Settings for VLAN_PRI_OVERRIDE V
15. LAN 1 ccc cette tenet nee Special Case of VLAN ID 0 Priority Tagged Frames Promiscuous Mode CharacteristiCS 0 000 c cece eee Allowable Values for HP VLANS Lee ee ee ee ee ee nee ee ee 3 Configuring VLANs Using SAM Configuring VLANs Using SAM sssvsveeeeeeeeeee ee eeeeee 4 Configuring VLANs by Editing vianconf File Modifying Parameters in vianconf File 0 0 0 0 cece eee eens 5 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANSs lanadmin Syntax 2 0 tee Using lanadmin to Createa VLAN 00 0 Using a MLAN wish oe athe cals pee din oe Che Red aly ee r Gate Ba ae Using lanadmin to Modify a VLAN 00 0 c eee ee Contents Contents Using lanadmin toDeletea VLAN cece eee nee eens 52 A Troubleshooting Diagnostic FlowchartS 00 cc cect teens 57 Flowchart 1 Link Level TestS 0 0 0 0 ccc cen een ee nee ee nee nine 58 Flowchart la Linkloop Test n nasua 000 c cece tees 60 Flowchart 2 Network Level TestS 0 0 0c cece eee teen eee n eens 64 Flowchart 2 Procedures 0 ccc ete e eee ent enn eens 65 NetTL Trace and Log of VLANS 000 cece eects 72 GIOSSANY fon coi Fe eesedsede tees cairr UN CA sede e ean haca sede ates 75 Table 1 1 Needed Patches for HP UX VLANS 0 00 ee ee ee ee 17 Table 2 1 Summary of VLAN Tagging Assignment 0 ee
16. TI 1213 v ll ECAI EA Me ce is rac 48 14 15 16 17 18 19 la Ib le ld le 1f 20 21 22 23 visiewsnvean In 64 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f 30 31 32 33 S amp 0123 80 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 40 41 42 43 456789 lt gt ABC 96 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 DEFGHIJKLMNOPOQRS 112 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f 60 61 62 63 TUVWXYZ _ abc 128 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f 70 71 72 73 defghijkimnopagrs 864 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f 50 51 52 53 DEFGHIJKLMNOPORS LA56 94 95 96 97 98 OO Ho a eS Sa wi a bee dita ig Logging Example Timestamp Process ID User ID Device ID Connection ID UID If you try to create a VLAN with a VLANID that is already present on the physical PPA you get the following output in verbose formatting mode 1K kK KK kK kK KK kK eK kK kK KK KV LAN SUDSYSL EM FRA ALA AC SE CAS HR RAK RARE AK KK RA KK Wed Nov 07 PST 2001 11 23 44 311001 8631177 Subsystem VLAN Log Class ERROR Path ID 0 Log Instance 0 lt 2003 gt Creat V a P Appendix A Error LAN created on the same physical interface PPA Choose nother VLANID or try creating the VLAN on another hysical interface PPA User specified VLANID 53 is already in use by another VLAN The VLANID specified is already in use by another 73 Troubleshooting NetTL Trace and Log of VLANs 74 Appendix A Glossary 802 1p 1EEE Standard suppl
17. Using HP UX VLANs HP 9000 Networking for HP UX 11i O invent Manufacturing Part Number T 1453 90001 E0302 U S A Copyright 2002 Hewlett Packard Company Legal Notices The information in this document is subject to change without notice Hewlett Packard makes no warranty of any kind with regard to this manual including but not limited to the implied warranties of merchantability and fitness for a particular purpose Hewlett Packard shall not be held liable for errors contained herein or direct indirect special incidental or consequential damages in connection with the furnishing performance or use of this material Werranty A copy of the specific warranty terms applicable to your Hewlett Packard product and replacement parts can be obtained from your local Sales and Service Office Restricted Rights Legend Use duplication or disclosure by the U S Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 for DOD agencies and subparagraphs c 1 and c 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 for other agencies HEWLETT PACKARD COMPANY 3000 Hanover Street Palo Alto California 94304 U S A Use of this manual and flexible disk s or tape cartridge s supplied for this pack is restricted to this product only Additional copies of the programs may be made for securi
18. VLAN ID 0 4094 unique within None Integer NIC 1 VLAN ID per VLAN VLAN_PRIORITY 0 7 0 Integer 802 1p priority for outbound VLAN frames VLAN_TOS Typeof 0 255 0 Integer Service value VLAN_PRI_OVERRIDE CONF_PRI CONF_PRI Case sensitive Priority Override IP HEADER character level CONF_TOS string VLAN_TOS_OVERRIDE IP_HEADER IP HEADER Case sensitive Type cf service ETHER HEADER character Override Level CONF_TOS string CONF PRI VLAN_NAME VLAN 31 chars keyword not Nonet Alphanumeric name allowed unique within character string NIC Case sensitive 1 VLAN name per VLAN VLAN_VPPA Virtual starts at 5000 None Integer PPA number 1 VPPA per vianid unique per system Chapter 2 29 Overview of Installation and Configuration Allowable Values for HP VLANs Table 2 2 Allowable Values for Parameters in vianconf File Continued Parameter Range and Type description Restrictions yP 1 Default is an empty string lanadmin will display it as UNNAMED 30 Chapter 2 Overview of Installation and Configuration Using VLANs with MC ServiceGuard Using VLANs with MC ServiceGuard You can create MC ServiceGuard fail over groups with VLANs as long as the primary and standby links are both VLAN interfaces with the same VLAN ID See Figure 2 2 for an example Please refer to HP MC ServiceGuard documentation for more details Example Figure 2 3 VLANs and Service Guard Ian5002 Ian5003
19. VLAN to the correct one by running the command lanadmin V modify If theinterfaceis not displayed run lanadmin V create to create the VLAN If the problem is fixed Stop Else check for any error messages lf there are error messages correct them according to the error message If there are no error messages return to the network Test 63 Troubleshooting Flowchart 2 Network Level Tests Flowchart 2 Network Level Tests Figure A 4 Flowchart 2 ARP Test ping Test 64 Appendix A Appendix A Troubleshooting Flowchart 2 Network Level Tests Flowchart 2 Procedures e SeeFlowchart 2a to validate ARP entries and remote host availability e SeeFlowchart 2b to check communication between network layers on source and target host using ping 65 Troubleshooting Flowchart 2 Network Level Tests Flowchart 2a ARP Test Figure A 5 Flowchart 2a ARP Test Remote YES host up Y o Bring up remote host Is remote host entry in ARP cache Is the ARP Use ARP to entry correct and complete NO p correct and complete the entry 66 Appendix A Appendix A Troubleshooting Flowchart 2 Network Level Tests Flowchart 2a Procedures Use ARP to verify that an entry exists for the remote host in your system s ARP cache by executing arp hostname If there is no ARP entry for the remote host check to see if the remo
20. a AA tele heh tela a 62 PION Cant 2 Juco feeds e atamiclosh eae see ane Ny 64 Flowchart 2 dixd 2 302 oh 2 203 deans Dee Rte BAGO acra bat AC wee ewes 66 Flowchart 2045 oad Car prian pb senan taeee rae deena re Veg ras 68 Flowchart 2b continued eeeeveeeeeeeeee ee ee ee ee 70 Figures 1 What are HP UX VLANs Chapter 1 What are HP UX VLANs A Virtual LAN VLAN is a logical or virtual network segment that can span multiple physical network segments Using VLANs you can group switched network end stations by e department such as engineering and manufacturing e type of user such as power users or those with special needs e application or e project instead of physical location Figure 1 1 Figure 1 1 VLANs Virtual LANs End Users Switches Internetwork Physical View Internetwork Router Logical View VLANs isolate broadcast and multicast traffic by determining which destinations should receive that traffic thereby making better use of switch and end station resources With VLANs broadcasts and multicasts go only to the intended nodes in the virtual LAN 10 Chapter 1 Chapter 1 What are HP UX VLANs VLANs create broadcast domains using switches instead of routers While VLANs in some environments may reduce the number of routers needed and their latency you still need a router if you want the VLANs to communicate with each other 11 What a
21. admin V scan on both the source and destination Ensure switches along the path are configured with the correct VLAN ID and marked tagged or untagged as appropriate EnsureMTUs match as well Ensure that link parameters for autonegotiation flow control speed and duplexity are compatible Ensure that the link is up Refer to the documentation for each specific link for details If linkloop is successful continue to Network Test You may also want to contact the node manager of the remote that did not respond if this was the case Appendix A 61 Troubleshooting Flowchart 1 Link Level Tests Flowchart 1b lanscan and lanadmin Test Figure A 3 Flowchart 1b lanscan and lanadmin Test N me Dn YES Network Level 5N Tests Run lanscan v Is VLAN ID correct g your interfas displayed after executing lanscan F Create VLAN Modify VLAN by running by running lanadmin V create lanadmin V modify N ba Any error messages Network Level Tests F Problem fixed problem 62 Appendix A Appendix A Troubleshooting Flowchart 1 Link Level Tests Flowchart 1b Procedures Execute lanscan command and verify your interface is displayed by the system Ifitis displayed run lanscan v toensuretheVLAN ID is correct If so return to the network Test If not modify the
22. affic for certain activities HP UX VLANs can be created modified and deleted without rebooting HP UX VLANs are interoperable with non VLAN aware devices that is devices such as servers or bridges that do not transmit or receive tagged packets 13 What are HP UX VLANs Types of VLANs Supported by HP UX Types of VLANs Supported by HP UX The types of HP UX VLANs that you can create are as follows e NIC Port Based A group of physical LAN card ports belong to the same layer 2 broadcast domain Each LAN card port transmits and receives frames belonging to the VLAN associated with that port Members of the same port based VLAN all havethe same VLAN ID A VLAN ID uniquely identifies the VLAN to which a frame belongs e Protocol Based Common protocols such as IP IPX AppleTalk Decnet and NetBIOS are grouped into layer 2 broadcast domains e IP Subnet Based Each IP subnet has its own unique VLAN Traffic from different subnets is logically separated from each other as if each subnet were on a different LAN segment Please refer to Planning HP UX VLANs in this document for more information on setting up the different types of VLANs described HP UX VLANs conform to IEEE specifications 802 1Q for VLAN tagging and IEEE 802 1p MAC level frame prioritizing to provide end to end class of service CoS 14 Chapter 1 What are HP UX VLANs HP UX VLAN Tagging HP UX VLAN Tagging Network switches and end stations th
23. al VLAN Pri Pri Tos ToS NAME Interface Interface ID Override Override Name Level Level 1an5000 1an0 5 2 CONF_PRI 25 IP_HEADER Querying for a Base VPPA Value You can determine the minimum acceptable value for a Virtual PPA using the following command lanadmin V basevppa Example lanadmin V basevppa 5000 Using a VLAN Once a VLAN is created its VPPA can be used to configure protocols send commands and transmit and receive data just like a physical point of attachment PPA For example to configure an IP address on the VLAN type ifconfig lan5000 inet 100 2 1 1 netmask 255 255 255 0 up You cannot change physical link properties such as speed duplexity or maximum transmission unit MTU over a VLAN If you make changes to a physical interface those changes will be reflected in the VLANs on that interface Using lanadmin to Modify a VLAN The properties of a VLAN can be modified using lanadmin For example to change the VLAN ID to 53 and priority to 3 on lan5000 type 51 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs 52 lanadmin V modify vlanid 53 pri 3 5000 Successfully modified lan5000 Old value vlanid 454 pri 6 New value vlanid 53 pri 3 After the modification the lanscan v output will display Hardware Station Crd Hdw Net Interface NM MAC HP DLPI DLPI Path Address In State NamePPA ID Type Support Mjr VLANO 0x001083FF9951 5000 UP lan500
24. alue in vianconf File Continued Priority Override Setting Outbound IP Packets CONF_TOS VLAN Tag priority comes from ToS to 802 1p mapping table see Table 2 3 The ToS value used is TOS Table 2 5 Allowable Settings for VLAN_TOS OVERRIDE Value in vianconf File ToS Override Setting Inbound IP Packet Header ToS Setting IP HEADER default IP header ToS value is undisturbed CONF TOS IP header ToS value is overwritten with TOS ETHER_HEADER IP header ToS value is overwritten with a value from the 802 1p to ToS mapping table see Table 2 3 The 802 1p value used comes from the VLAN tag of the inbound frame CONF_PRI IP header ToS value is overwritten with a value from the 802 1p to ToS mapping table see Table 2 3 The 802 1p value used isPRI 34 Chapter 2 Overview of Installation and Configuration Setting 802 1p Priority ToS and Overrides Setting 802 1p Priority ToS and Overrides 802 1p priority is the priority in the tag in the frame header Switches can use the 802 1p priority ToS is the IP precedence in the IP header Switches ignore ToS Routers may use it The Priority Override Levels for Outbound Traffic are as follows CONF _PRI Your specified priority will be used IP_HEADER IP header ToS will be converted to 802 1p priority CONF_TOS Your specified ToS value will be converted to 802 1p priority according to the values shown in Table 2 1 The ToS Override Levels f
25. ase T PHNE 23465 Gigabit PHNE 24491 netti netfmt and nettladm PHNE_ 24473 PHNE_25388 LAN core patch that enables VLANs 17 What are HP UX VLANs System and Software Requirements Table 1 1 18 Needed Patches Continued for HP UX VLANs Continued Driver SAM 11i Patch PHCO 25866 Either the 100Base T or Gigabit patch may be optional depending on which link type you have Chapter 1 Chapter 1 What are HP UX VLANs Supported Switches Supported Switches HP UX VLANs are supported with switches that implement IEEE 802 1Q compliant VLAN tagging The switches must implement at least port based VLANs and must be VLAN tag aware The following switches are among those that support HP UX VLANs e HP ProCurve 9304M e HP ProCurve 4000M 8000M e Extreme Summit 7i e Cisco Catalyst 6509 19 What are HP UX VLANs Unsupported Functionality Unsupported Functionality HP UX VLANs do not support the following functionality e GARP VLAN registration protocol GVRP is currently not supported HP UX VLANs will not send GVRP messages or interpret them e HP UX VLANs do not operate on Any Itanium based servers whether the LAN card is factory installed or customer installed HP UX 11 20 11 0 and 10 20 FDDI Token Ring ATM 100VG EISA and HP PB LAN cards 20 Chapter 1 Chapter 2 Overview of Installation and Configuration Overview of Installatio
26. at know about VLANs are said to be VLAN aware Network switches and end stations that can interpret VLAN tags are said to be VLAN tag aware HP UX VLAN tag aware end stations add VLAN tags to standard Ethernet frames a process called explicit tagging A VLAN tag Figure 1 2 identifies which VLAN a data frame belongs to and enables traffic from more than one VLAN to use the same switch or LAN card port Figure 1 3 When a VLAN aware switch receives data from an end station the switch determines where the data is to go and whether the VLAN ID should be retained If the data is to go to a device that can recognize the VLAN tag the VLAN tag is retained If the data is to go to a device that has no knowledge of VLANs VLAN unaware the switch sends the data without the VLAN tag Figure 1 2 IEEE 802 19 VLAN Tag in Ethernet Frame 4 Bytes Destination Source 802 1Q Type Len Frame Address Address VLAN Tag Check 2 Bytes 2 Bytes Tag Control Information Canonical VLAN ID Format Indicator WEES 1 bit You must configure VLAN tagging on switch ports that interface to end stations that have tagged VLANs If a switch or end station port is member of only a single port based VLAN tagging is not required Totransmit tagged frames you must configure a VLAN on the end station with a VLAN ID that matches the VLAN ID of a tagged VLAN on the switch port and the VLAN ID of a VLAN at the remote end station Refer to the nex
27. ation Process NOTE 26 Configuration Process Following are the steps to configure HP UX VLANs These steps are for defining VLAN membership assigning names VLAN IDs and port assignments This procedure assumes that the switches can add VLAN tags 1 Determine the network topology affected Either draw the affected network topology or list it Include all affected end stations workstations and servers Define the VLANs Decide according to your requirements which systems belong to which logical groups Assign VLAN IDs to each VLAN Ensure that the assignments are consistent across endstations and switches otherwise stations will not communicate with each other A VLAN ID can be any number between 0 and 4094 that is used only once within that port The VLAN ID is not the same as the number of VLANs supported HP UX supports up to 1024 VLANS per LAN card port Determine which LAN card ports need tagged VLANs and which do not Typically you may need to put a server LAN card port in several VLANs while a desktop LAN card port can belong to just one VLAN Assign VLAN Ds to each LAN card port on end stations and switches Mark VLANs on the switches as tagged or untagged according to the LAN card port to which they are connected On HP UX servers that must belong to several VLANs create VLANs on the corresponding LAN card ports Chapter 2 Chapter 2 Overview of Installation and Configuration
28. developed by Digital Equipment Corporation Intel and Xerox Corporation upon which the IEEE 802 3 network is based Fast Ethernet A commonly used name applied to 100Base T HSC High speed connect bus Hardware Path An identifier assigned by the system according tothe physical location slot of a card in the hardware backplane Hostname Name of system on the network Hub A network interconnection device that allows multiple devices to share a single logical link segment Hubs are generally either 10 Mbit s or 100 Mbit s devices IEEE The Institute of Electrical and Electronics Engineers A national association whose activities include publishing standards applicable to various electronic technologies The IEEE technical committees are numbered and grouped by area For example the 800 committees study local area network technologies The 802 3 committee produced the standard for a CSMA CD local area network which has been adopted by ANSI Internet Address The network address of a computer node This address identifies both which network the host is on and which host it is Refer to the Installing and Administering LAN 9000 Software manual for detailed information about network addressing Glossary 75 Glossary IP IP Internet protocol IP Address See Internet Address glossary entry LAN See Local Area Network Local Area Network LAN A data communications system that allows a number of i
29. devices separate ports configured as untagged must be used to connect separate VLANs to non 802 1Q devices Figure 2 2 Tagged and Untagged VLAN Technology in Same Network Switch Port untagged or native VLAN Untagged st en tagged VLAN tagged VLAN tagged VLAN When you assign a switch port to a given VLAN you must implement the VLAN tag if the switch port will carry traffic for more than one VLAN Otherwise the port VLAN assignment can remain untagged because the tag is not needed On a given switch use the untagged designation for a port VLAN assignment where the port is connected toa non 802 1Q compliant device or is assigned to only one VLAN asin VLAN 1 in Figure 2 2 Use the tagged designation when more than one VLAN is assigned to the port or the port is connected to a device that does comply with the 802 1Q standard as in VLANs 2 through 4 in Figure 2 2 These simple rules are summarized in Table 2 1 Chapter 2 23 Overview of Installation and Configuration How to Configure VLANs on the Switch Table 2 1 Summary of VLAN Tagging Assignment VLANs Per Port Tagging Scheme 1 Untagged or Tagged If the device connected to the port is 802 1Q compliant then the recommended choice is Tagged 2 or more 1 VLAN Untagged all others Tagged or All VLANs Tagged A given VLAN must have the same VLAN ID on any 802 1Q compliant device in which the VLAN is configured 24 Chapter 2 C
30. ement now incorporated in IEEE 802 1D Defines 8 priority levels for traffic classification at the data link level and suggests how they might be used 802 1Q IEEE Standard that specifies the architecture for VLAN tagging association and VLAN capable bridges 100B ase T A 100 Mbit s communication method specified in the IEEE 802 3u 1995 standard The official name for Fast Ethernet Alias Name of the interface that corresponds to a given Internet address on a system Canonical format indicator The CFI bit indicates that all MAC addresses present in the MAC data field are in canonical format HP UX always transmits a CFI of 0 Card Instance Number A number that uniquely identifies a device within a class A class of devices is a logical grouping of similar devices CoS Class of Service The ability to provide different levels of service to various traffic flows A flow may be determined explicitly via tags or implicitly from the frame contents such as the IP address or ToS field Class of Service CoS network management is when similar types of traffic for example voice video or data are grouped together and assigned a priority Unlike Quality of Service QoS traffic management CoS does not guarantee a level of servicein terms of bandwidth and delivery time Destination Address A field in the message packet format identifying the end node s to which the packet is being sent Ethernet A 10 Mbit s LAN
31. id 29129 seq 2 code none User Data 0 3b e9 86 6d 00 06 ab cc 08 09 Oa Ob Oc Od Oe OF Ff m 16 10 11 12 13 14 15 16 17 T8 T9 da Ib Te ld Te Li wea wes cin 32 20 21 22 23 24 25 26 27 28 29 2a 2b 2c ad ae 2 IM SSE 48 30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f 0123456789 lt gt 64 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f G ABCDEFGHIJKLMNO 80 50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f PORSTUVWXYZ _ 96 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f abcdefghijklmno 112 70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7 parstuvwxyz 128 80 81 82 83 84 85 86 87 88 89 8a 8b 8c 8d 8e BE darrier ee eee 14a24 909i 92 93 94 95 96 97 98 99 gt si cios im RS SESS Aud el alee dials ed Sh sii SROCESLEASRAERARAAAORSE OSG CAB It Ethernet TAN 9000 Networking gt h444 CASO A464 KAA44 Timestamp Wed Nov 07 PST 2001 11 08 03 961449 Process ID ICS Subsystem GELAN User ID UID sil Trace Kind PDU IN TRACE 72 Appendix A Troubleshooting NetTL Trace and Log of VLANs Device ID alt Path ID Connection ID 0 Location 00123 Received 1480 bytes via Ethernet Wed Nov 07 11 08 03 961449 PST 2001 pid ICS interface 1 Dest 00 10 83 05 16 7d Sourc 00 10 83 05 16 7 00 10 83 05 16 7 VLAN Tag 0x4004 0 45 00 05 b6 be 49 40 00 ff 01 21 8a 65 03 66 2f E LO ee ees t7 16 65 03 66 3d 00 00 77 9c 71 c9 00 02 3b e9 86 6d e f Ww g ee Tl 32 00 06 ab ce 08 09 Oa Ob Oc Od Oe OF 10
32. ile priority Only for IP packets For non IP packets CONF_PRI will be used CONF_TOS User specified ToS taken from VLAN_TOS will be converted to 802 1p priority Inbound ToS value to be used for IP packets Allowed ToS override levels are as follows IP_HEADER ToS value in the IP header will be used default if not specified ETHER_HEADER Ether header 802 1p priority will be converted to ToS value CONF_TOS ToS specified by the user will be used CONF_PRI 802 1p priority given in VLAN_PRIORITY will be converted to ToS value Name of the VLAN Its a simple string which consists of alphanumeric characters No special characters allowed User requested VPPA for the VLAN Virtual Interface that will be created by the information given above If not specified system will assign a VPPA HEHE EH HE EE AE FE AE FE EH EE AE FE AE HE ERE EE EE EEE HE EE EE TEHE HE HE add a set of variable assignments like the ones Configuring VLANs by Editing vlanconf File Modifying Parameters in vianconf File LAN AN_NAME LAN ID 1 LAN PRIORITY 1 LAN LAN_PRI_OVERRIDE TOS 1 RoR cs gee eee Exampl LAN P LAN I LAN P LAN VPPA e HY IN D O 1 LAN PRIORITY 0 0 LAN_TOS 0 0 ERRIDE 0 CONF_PRI RI OV OS OVERRIDE T n 1 Following is an example where the physical interface lan0
33. lowing sections e Diagnostic Flowcharts Use of lanadmin and lanscan commands and scripts for testing or troubleshooting VLANs Appendix A Troubleshooting Diagnostic Flowcharts Diagnostic Flowcharts Table A 1 summarizes the types of network tests in the diagnostic flowcharts Follow the flowcharts in sequence beginning with Flowchart 1 Table A 1 Flowchart Descriptions Chart Type of Test Purpose 1b lanscan lanadmin Tests 1 Link Level Tests Checks communications between link levels Verifies VLAN creation la linkloop Test Verifies link level address of remote hosts Verifies VLAN IDs and tests VLAN creation 2 Network Level Tests Validate ARP 1M entries and remote host availability Check communication between network layers on source and target host 2a ARP Test 2b ping Test Verifies that an entry exists for the remote host in your system s ARP cache Checks roundtrip communication between Network Layers on the source and target host Appendix A 57 Troubleshooting Flowchart 1 Link Level Tests Flowchart 1 Link Level Tests Check communications between link levels on the source and target host using the linkloop lanscan and lanadmin commands The source interface should be a VPPA that is a PPA corresponding toa VLAN interface The destination MAC address is the remote VPPA s MAC address 58 Appendix A Troubleshooting Flowchart 1 Link Level Test
34. n and Configuration Planning HP UX VLANs Planning HP UX VLANs The following requirements must be satisfied before setting up VLANs in an HP UX network e In order for both end stations of a VLAN to communicate both the end station LAN cards and the switch ports that are connected to those LAN cards on a point to point link need to be VLAN tag aware e For VLANs to communicate with each other an external VLAN aware switch or router is required Figure 2 1 However it is not possible to extend a single vlan across a router e If ahubis connected toa network of VLANs every port on the hub must belong to the same VLAN Hubs do not have the ability to provide VLANs to individual ports VLAN awareness does not provide any benefit in a shared LAN environment using hubs or repeaters In these shared LAN environments all stations see all traffic whether it is VLAN tagged or not Figure 2 1 Communication between VLANS Requires an External Router LAN Card with Two Port B ased VLANs Configured Port A2 Red VLAN External Port A1 Router Green VLAN Port A4 22 Chapter 2 Overview of Installation and Configuration How to Configure VLANs on the Switch How to Configure VLANs on the Switch IEEE 802 1Q compliant devices and legacy untagged VLANs can coexist on the same networks but legacy untagged VLANS require a separate link whereas the 802 1Q tagged VLANs can combine several VLANs into one link On 802 1Q compliant
35. ndependent devices to communicate with each other Local Network The network to which a node is directly attached Maximum Transmission Unit MTU Largest amount of data that can be transmitted through that interface This value does not include the LLC or MAC headers NetTL HP s tracing and logging facility for HP UX networking Network Interface A communication path through which messages can be sent and received A hardware network interface has a hardware device associated with it such as a LAN card A software network interface does not include a hardware device for example the loopback interface For every IP address instance there must be one network interface configured NIC Network interface card PCI Peripheral component interconnect PPA Physical point of attachment A PPA is the point at which a system is attached toa physical communications medium All communication on that physical medium funnels through the PPA 76 QoS Quality of Service The ability to provide guarantees for data transfer for example latency throughput and discard priority SAM System admin manager GU I based HP tool for system configuration and management Shared media LAN A local area network LAN that shares all its bandwidth among all stations Switch A network interconnection device that allows multiple connected senders and receivers to communicate simultaneously in contrast to a hub repeater where
36. ollowing command lanadmin V create vlanid 454 pri 6 0 Successfully configured lan5000 vlanid 454 name UNNAMED pri 6 tos 0 tos_override IP_HEADER pri_override CONF_PRI ppa 0 This command created a VLAN lan5000 on top of the physical interface lan0 The PPA associated with this VLAN 5000 is referred to as a VPPA short for Virtual PPA Note the parameters that were not specified in the command have been assigned default values Displaying a VLAN and its Properties You can use the default lanscan command to view all the interfaces as follows lanscan VLANO 0x001083FF9951 5000 UP lan5000snap5000 14 ETHER Yes 119 1 2 4 0x006023456789 1 DOWN lanl snapl 2 ETHER Yes 119 49 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs 50 The VLAN lan5000 appears in lanscan output just like a physical interface VPPAs are identified by the string VLANx in the hardware path where x is a number and is unique per VPPA In the lanscan output VPPAs of a given physical interface are displayed just after the corresponding physical interface The verbose option of the lanscan command displays more information about the VLAN lanscan v Hardware Station Crd Hdw Net Interface NM MAC HP DLPI DLPI Path Address In State Name PPA ID Type Support Mjr VLANO 0x001083FF9951 5000 UP lan5000 snap5000 14 ETHER Yes 119 Extended Station LLC Encapsulation Address Methods 0x001083FF9951 Driver S
37. only one device can send at a time Some switches have fixed port speeds 10 Mbit s or 100 Mbit s while others allow port speeds to be configured or autonegotiated Tag aware Devices such as switches routers and end stations that can interpret VLAN tags Seealso VLAN aware TCP Transmission control protocol Topology The physical and logical geometry governing placement of nodes in a computer network Also the layout of the transmission medium for a network ToS Pv4 Type of Service field which indicates the desired service expected by an IP packet for delivery through routers across the PP internetwork The size of this field is 8 bits which contain bits for precedence delay throughput and reliability characteristics UTP Unshielded Twisted Pair Cabling A data cable type consisting of pairs of wires twisted together without an electrically shielding jacket Glossary Virtual PPA or VPPA Virtual Interfaces which are dynamically created by you using lanadmin or SAM The interfaces are virtual because they do not havea unique hardware instance A virtual PPA isthe PPA associated with a VLAN VLAN Virtual LAN VLANs area mechanism to determine which end stations should receive broadcast traffic since it should not be sent arbitrarily to every connected user Each packet transmitted by an end station is assigned toa VLAN An end station only receives all the multicast and broadcast traffic on the LANs to
38. or Inbound Traffic are as follows IP_HEADER ToS value in the IP header will be used ETHER_HEADER Ether header 802 1p priority will be converted to ToS value CONF_TOS ToS specified by user will used CONF _PRI Your specified 802 1p priority will be converted to Tos Where to Get More Information For information on using the Lanadmin command to temporarily modify HP UX VLANs between reboots type man vlan Chapter 2 35 Overview of Installation and Configuration Where to Get More Information 36 Chapter 2 Chapter 3 Configuring VLANs Using SAM 37 Configuring VLANs Using SAM Configuring VLANs Using SAM Configuring VLANs Using SAM You can use SAM to configure VLANs by completing the following steps 1 Login as root 2 Check the HP UX version by typing uname a The version should be HP UX 11i 11 11 3 At the HP UX prompt type sam 4 At the SAM main window double click Networking and Communications 5 There are then 2 ways to access VLAN configuration Either choose the icon Virtual LAN or choose Network Interface Cards and then show the VLANs by using the List Pulldown SAM displays a list of VLAN aware physical interfaces and all VLANs created on them Figure 3 1 Figure 3 1 List Pulldown with Virtual LANs Displayed 38 Chapter 3 Configuring VLANs Using SAM Configuring VLANs Using SAM 6 On the Virtual LAN screen available VLAN aware cards are displayed When you select a LAN card
39. pecific Information vlan Vlan ID Phy PPA Priority ToS Priority Override ToS Override Name 454 0 6 0 CONF FRI IP_HEADER UNNAMED Using lanadmin to Set 802 1p Priority ToS and Overrides The lanadmin V create vlanid command has options to set the 802 1p priority called pri and or the Type of Service ToS value called tos It also has pri_override and tos override For more details refer to Setting 802 1p Priority ToS and Overrides in this document Using lanadmin to Query for VLANs on a System The following command can be used to query for the list of VPPAs configured and their properties lanadmin V scan A sample output for the successful command is as follows VLAN Physical VLAN Pri Pri Tos ToS NAME Interface Interface ID Override Override Name Level Level 1an5000 lan0 2 CONF_PRI 25 IP_HEADER lan5003 1an0 11 5 CONF_PRI 204 CONF_PRI purple lan5001 lanl 4 IP_HEADER 64 IP_HEADER newone 1lan5002 lan2 3 7 CONF_TOS 200 CONF_PRI UNNAMED Note UNNAMED will be displayed as the VLAN nameif thereis no name associated with the VPPA Chapter 5 NOTE Chapter 5 Using lanadmin V to Administer VLANs Using the lanadmin V Command for Administering VLANs Querying for a Single VPPA on a System You can query the Virtual PPA using the following command lanadmin V info lt vppa gt The info command will return the output in the following format when successful Example lanadmin V info 5000 VLAN Physic
40. re HP UX VLANs HP UX VLAN Features 12 HP UX VLAN Features Following are some of the features of HP UX VLANs HP UX VLANs are implemented with host based IEEE 802 1Q p compliant tagging to allow configuring multiple VLANs on a given Ethernet LAN card based on their P subnet protocol or LAN card port HP VLANs are for use over fast Ethernet or gigabit Ethernet LAN cards running on HP UX 11i 11 11 PA RISC based servers and workstations HP UX supports up to 1024 VLANS per LAN card port HP UX VLANs do not require you to rewrite applications install new hardware or recable They are also compatible with HP MC ServiceGuard as well as HP s online addition and replacement OLAR capabilities Chapter 1 Chapter 1 What are HP UX VLANs Benefits of HP UX VLANs Benefits of HP UX VLANs The advantages of HP UX VLANs are Physically dispersed workgroups can be logically connected within the same broadcast domain to appear as if they are on the same physical LAN A single physical link can simultaneously serve several IP subnets when subnet based VLANs are configured on that link Switches no longer need to classify and tag traffic They focus on forwarding packets Workgroups requiring increased security can be logically connected within the same broadcast domain Broadcast traffic will be isolated within the secure group End stations using VLANs can offer rudimentary class of service CoS locally by prioritizing tr
41. rved after reboots unless you modify the vianconf file manually configuration values to create VLAN Virtual Interface This file will maintain the VLAN information across reboot and will be modified by SAM You can also edit this file TERFACE TY ERRIDE Physical interface name s lanscan lm output This value must be specified Unique VLAN id for VLAN VLAN id is a positive integer value which can range from 0 to 4094 This value must be specified Priority for the VLAN Priority is a positive integer value which can range from 0 to 7 Default value of 0 will be taken if not specified Inbound ToS value applicable to IP packets Its a positive integer value that ranges from 0 to 255 A default value of 0 will be taken if not specified Outbound priority override level It tells the system what priority to choose when tagging the packets with VLAN information Allowed priority override levels are as follows CONF_PRI User specified priority will be used default if not specified IP_HEADER IP header ToS will be converted to 802 1p Chapter 4 VLAN_NAM EI VLAN_VPPA Sample Entry VLAN_TOS_OVERRIDE For each VLAN configuration below changing the index to 1 2 et cetera VLAN_PHY_INT Chapter 4 ERFAC Configuring VLANs by Editing vianconf File Modifying Parameters in vlanconf F
42. s Figure A 1 Flowchart 1 Link Level Tests linkloop Test lanscan and lanadmin Tests Appendix A 59 Troubleshooting Flowchart 1 Link Level Tests Flowchart 1a Linkloop Test Figure A 2 Flowchart 1a Linkloop Test Execute linkloop to remote host Loopback FAILED Address has bad format or Not an individual address Correct the link address parameter Link Level Test 60 Linkoop successful YES Loopback FAILED remote host fails to respond Re Network Level Tests b Re check remote host address and if same VLAN ID is enabled choose a different remote host and re execute linkloop Linkoop successful NO is Ianscan Ianadmin Tests Appendix A Troubleshooting Flowchart 1 Link Level Tests Flowchart la Procedures e Execute linkloop toremote host If linkloop is successful continue to Network Test Elseif linkloop fails note which error was returned If loopback failed error Address has bad format or not an individual address then correct the link level address with the proper station address format value and repeat the Link Level Test e Otherwise loopback failed because the remote host did not respond Double check the remote host address and VLAN ID or choose another remote host and re execute linkloop Ensure VLAN IDs are the same by using lan
43. t 3 chapters in this guide for complete details on configuring VLANs on your HP UX end stations Chapter 1 15 What are HP UX VLANs HP UX VLAN Tagging Figure 1 3 VLANS Overlapping or Sharing the Same LAN Card Port HP Gigabit or Fast Ethernet LAN Card Port VLANO VLAN 1024 16 Chapter 1 Table 1 1 Chapter 1 What are HP UX VLANs System and Software Requirements System and Software Requirements Following are the hardware and software requirements for VLANs as of March 2002 e Type of HP System Required HP UX Precision Architecture PA RISC e OS Required HP UX 11i 11 11 New HP servers and workstations shipped after March 2002 already have VLAN technology preinstalled in the operating environment For computers shipped before March 2002 check the product Information Sheet to see if the VLAN product can be loaded by way of required patches e VLANs work over all HP HSC and PCI 100BaseLAN cards and all HP HSC and PCI 1000Base LAN cards Patches Required for the March 2002 HP UX 11i based Version The following patches are required in order to use the HP UX VLAN software on HP UX 11i based systems These patch numbers are current at the time of publication and may be superseded Check to see if these patches are superseded and download patches at the following URL http us support external hp com Needed Patches for HP UX VLANs Driver 11i Patch Transport PHNE 25644 100B
44. te host is up If not bring up remote host and continue to ping Test If the ARP entry is incorrect or not complete use ARP to enter the correct station address of the remote system and continue to ping Test Otherwise continue to ping Test 67 Troubleshooting Flowchart 2 Network Level Tests Flowchart 2b ping Test Figure A 6 Flowchart 2b Execute ping remotehost YES Validate network remote host and ping successful configuration settings 68 Appendix A Appendix A Troubleshooting Flowchart 2 Network Level Tests Flowchart 2b Procedures e Execute ping to remote host using ping e f ping is successful stop If not validate network remote host and configuration settings Verify the routing tables using the netstat rn command 69 Troubleshooting Flowchart 2 Network Level Tests Figure A 7 70 Flowchart 2b continued Flowchart 2b continued ping not successful Y mm Wa Network Level unreachable Tests F N pe ed S Link Level bh Tests II S J l Unknown host L Correct BIND YP error or etc hosts configuration No route to host error Add route table entry Call HP Appendix A Appendix A Troubleshooting Flowchart 2 Network Level Tests Flowchart 2b continued Procedures If network unreachable error go to the Configuration Tests If no response from ping
45. ty and back up purposes only Resale of the programs in their present form or with alterations is expressly prohibited Copyright Notices copyright 2002 Hewlett Packard Company all rights reserved ProCurve is a registered trademark of Hewlett Packard Company DecNet is a trademark of Compaq Corporation AppleTalk is a trademark of Apple Computer Inc Extreme and Summit are trademarks of Extreme Networks Inc Cisco and Catalyst are trademarks of Cisco Systems Inc Reproduction adaptation or translation of this document without prior written permission is prohibited except as allowed under the copyright laws 1 What are HP UX VLANs HP UX VLAN Features ws cs eile oe dare eyes cab arte ed ao gts Benefits of HP UX VLANS 000 c cece ee ee nee ee ee ee naes Types of VLANs Supported by HP UX 0 0 0 eee eee eee HP UX VLAN Tagging cis cian ie a IR Si cece eee System and Software Requirements 0000 cece eee Patches Required for the March 2002 HP UX 1li based Version Supported Switches 0 0 0 eee ee Unsupported Functionality eeeveeeeeeeeeee ee cee 2 Overview of Installation and Configuration Planning HP UX VLANS LL LL vveeeee nee ee ee ee ee ee How to Configure VLANs on theSwitch seeeee ee einne How to Configure VLANs ON HP UX 0 cee eee eens Choose Configuration Method Use SAM Edit vlanconf Use lanadmin Configuration Process 0 0 cece Properties Of AV
Download Pdf Manuals
Related Search