Cisco Systems Network Cabling User's Manual
Contents
1. no shutdown sw01 config if range exit 18 Turn logging to the console back on as follows At this prompt Enter Notes sw01 config logging console 19 Exit the configuration mode as follows At this prompt Enter Notes sw01 config exit 20 Verify the switch configuration as follows At this prompt Enter Notes sw01 show running config Displays the following output Building configuration Current configuration 3230 bytes l Version 12 1 no service pad service timestamps debug uptime service timestamps log uptime no service password encryption l hostname sw01 enable secret 5 1S45ROQShd11z0O vm5WKRsLXyZoFx0 ip subnet zero no ip igmp snooping l vtp mode transparent l spanning tree mode pvst spanning tree portfast bpduguard default no spanning tree optimize bpdu transmission spanning tree extend system id interface Port channell no ip address l interface GigabitEthernet1 0 1 no ip address no mdix auto channel group 1 mode on j interface Gigabit Ethernet1 0 2 switchport mode access no ip address no mdix a l interface switchpor uto Gigabit Ethernet1 0 3 t mode access no ip address no mdix a spanning j interface switchpor uto tree por Gigabit no ip address no mdix a uto tfast Ethernet1 0 4 t mode access spanning tree por l interface Gigabit tfast Ethe2. 2 N14 2 N16 2 N20 2 N21 P N13 P N5 P 2 4 6 8 10 12 14 16 18 20 22 Control node 1 Control node 2 Legend Blue Gateway GW Nz 1 Application node NIC Yellow Cisco interswitch link ISL Nz 2 Application node NIC Green Control node C Nz P Application node remote management controller Red Remote management controller Table 1 shows how each port is used on the switch and control node Table 1 Description of Panel and Main Board Notation Notation Description ISL 1 ISL 2 GW 1 GW 2 C2 1 C2 2 C1 P C2 P N1 1 through N23 1 N2 1 through N23 2 Used to create the first half of interswitch link ISL connection between the two Cisco switches Used to create the second half of the ISL connection between the two Cisco switches Used to create the first connection from the Cisco switch to the gateway Used to create the second connection from the Cisco switch to the gateway Used to connect the first control node s first onboard Gigabit Ethernet connection Gb 1 into the Cassatt Active Response environment through the designated switch port Used to connect the first control node s first onboard Gigabit Ethernet connection Gb 2 into the Cassatt Active Response environment through the designated switch port Used to connect the second control node s second onboard Gigabit Ethernet connection Gb 2 into the Cassatt Active Response environment through the designated switch
3. Flash flashfs 0 79 files 4 directories flashfs 0 0 orphaned files 0 orphaned directories flashfs 0 Total bytes 15998976 flashfs 0 Bytes used 6457856 flashfs 0 Bytes available 9541120 flashfs 0 flashfs fsck took 8 seconds done Initializing Flash Boot Sector Filesystem bs installed fsid 3 done Press RETURN to get started Proceed to step 1 in Setting switch options on page 24 to continue the switch configuration procedure Setting switch options This procedure provides the minimal configuration required to support the reference system Configure the first switch stack as follows 1 Select the Enter key to get started Skip the initial configuration as follows At this prompt Enter Notes System Configuration Dialog no would you lik dialog yes no nter the initial configuration 2 Enter the privileged mode as follows At this prompt Enter Notes Switch gt enable 3 Enter the configuration mode as follows At this prompt Enter Notes Switch configure terminal Displays the following output Enter configuration commands one per line End with CNTL Z 4 Turn the messages off as follows At this prompt Enter Notes Switch config no logging console Some of the switch configuration commands can produce many messages that are logged to the console
4. cable with reversed pins connected to a Lantronix ETS terminal server The following Lantronix port settings were used Char Size Stop Bits 8 1 Input Speed 9600 Flow Ctrl None Output Speed 9600 Parity None Modem Control None Access Remote Local Switch None Backward None Port Name Port 10 Break Ctrl Local Session Limit 4 Forward None Terminal Type Soft Preferred Services Lat Telnet Authorized Groups 0 Current Groups 0 Characteristics Broadcast Loss Notify Verify Remote Conf Telnet Pad 2 Log into the terminal server 3 Connect to the Cisco switch via the terminal server console CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 21 4 Plug in the Cisco switches in a stack 5 Many boot up and self test messages will scroll on the console monitor When the process is completed use the following table to determine your next step If the following displays at the Then prompt Continue with configuration The switch stack is in the factory default state go to dialog yes no step 1 in Setting switch options on page 24 to continue configuring the switch Press RETURN to get started The switch stack has already been configured and the switch stack must be restored to the factory settings go to step 1 in Restoring the factory default settings on page 22 Restoring the factory default settings To reset the switches in a switch stack to the factory defaults
5. will only hav ffect when the interfaces are ina non trunking mode At this prompt Enter Notes sw01 config if range switchport mode access sw01 config if range jexit sw01 config interface range GigabitEthernet 2 0 2 24 sw01 config if range spanning tree portfast Displays the following output sWarning portfast should only be enabled on ports connected to a single host Connecting hubs concentrators switches bridges etc to this interface when portfast is enabled can cause temporary bridging loops Use with CAUTION CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 28 SPortfast will be configured in 23 interfaces due to the command but will only hav non trunking mode range ffect when the interfaces are ina At this prompt Enter Notes sw01 config if range switchport mode access sw01 config if range exit 14 Disable IGMP snooping as follows At this prompt Enter Notes sw01 config no ip igmp snooping IGMP snooping is disabled to resolve communication issues with the bonded Ethernet interfaces IGMP snooping and multicast By default IGMP snooping is globally available on the switch With IGMP snooping multicast packets are forwarded only to the ports that have joined that multicast group When IGMP snooping is disabled multicast packets are forwarded
6. Control Node and Network Switch Cabling Example This document provides background information and detailed procedures for cabling dual Cassatt Active Response control nodes and network switches and for configuring those network switches These procedures are an example of one way you could cable the control nodes and configure the switches If your site setup differs use this document as a guideline Cabling control node and switch hardware Prerequisites This example assumes you have completed the following tasks e You have obtained all the required hardware e You have determined your network address strategy and allocated the required IP addresses according to network requirements of Cassatt Active Response e You have configured your gateway or gateways using the static IP addresses you allocated from the Cassatt network See the Info Central site for detailed information on calculating network addresses for Cassatt Active Response Port numbering You must understand the switch and control node port numbering to cable the Cassatt Active Response environment s hardware components together correctly Figure 1 assumes use of a Cisco switch and shows switch ports the switch module ports and the control node ports As an example this document assumes four network switches intended for use with 24 CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 16 application nodes Note that detailed instructions for ad
7. NT mode 10 Enable the portfast bpduguard feature as follows At this prompt Enter Notes sw01 config spanning tree portfast bpduguard default Enabling this feature protects against cabling errors If a spanning tree packet does arrive on a port that has this feature enabled the port is disabled 11 Aggregate the two physical links between the two Cisco switches in the stack into a single logical link as follows At this prompt Enter Notes sw01 config interface GigabitEthernet1 0 1 The single logical link provides both reliability and higher capacity When possible the two links of the port channel should be on different switches to provide reliability in case a complete switch goes down In this reference configuration stacked switches are used so both ports are not on the same switch The manual configuration of the port channel is required when the interfaces are on different switches sw01 config if channel group 1 mode on Displays the following output Creating a port channel interface Port channel 1 At this prompt Enter Notes sw01 config if exit sw01 config if interface GigabitEthernet2 0 1 sw01 config if channel group 1 mode on sw01 config if exit 12 Set the interface connection to the router as follows At this prompt Enter Notes sw01 config interface Giga
8. WITCH CABLING EXAMPLE 20 Configuring the switches After you have racked and cabled the control nodes and switches you need to configure both Cisco switch stacks If you are using another of the Cassatt recommended switches see the Info Central site for recommended switch hardware use this Cisco switch configuration as a guideline Do not configure network switches to enforce a maximum number of Ethernet addresses learned on an interface For example on Cisco switches do not use switchport port security Doing so may prevent Cassatt Active Response from inventorying VMs during the WARNING discovery process Connecting the switch to a terminal server To configure the first Cisco Catalyst 3750 Series switch stack to a Lantronix terminal server do the following If you are using another terminal server use this Lantronix configuration as a guideline 1 Unplug the network switches 1 Connect the switch in a stack to a terminal server It may be convenient to connect all switch consoles to the terminal server to avoid the need to move cables if a switch fails Follow the switch connector and cable specifications in the Catalyst 3750 Switch Hardware Installation Guide to determine what type of cable is needed when connecting the switch for configuration The RJ 45 to DB 9 adapter cable that comes with the switch for this connection was not used for the reference configuration testing Cassatt tested the switch with an RJ 45
9. bitEthernet1 0 2 This connection is set to access mode because no VLAN traffic should be sent over it sw01 config switchport mode access sw01 config if exit 13 Set the remaining interfaces which are identical as follows If the switches connect to a gateway device through another switch or a device that participates in spanning tree protocol do not set spanning tree portfast for the link to WARNING that device At this prompt Enter Notes sw01 config interface range GigabitEthernet 1 0 3 24 Setting the portfast option means that the port starts forwarding packets immediately instead of waiting for spanning tree protocol packets This allows for less dropped packets when a switch first is brought online This explanation assumes that none of the interfaces are running spanning tree All spanning tree to spanning tree switches must not have spanning tree portfast enabled If they do have it enabled the interface is automatically disabled upon receipt of a spanning tree packet sw01 config if range spanning tree portfast Displays the following output sWarning portfast should only be enabled on ports connected to a single host Connecting hubs concentrators switches bridges etc to this interface when portfast is enabled can cause temporary bridging loops Use with CAUTION SPortfast will be configured in 22 interfaces due to the range command but
10. ccording to the vendor s documentation and or the site policy For lack of any other policy rack the heaviest of the following pieces of equipment on the bottom e Cisco switches e Power distribution units PDUs e Control nodes e Application nodes 2 Follow the Cisco switch hardware installation instructions and use the StackWise cables to cable the four switches into two sets of switch stacks as shown in Figure 2 Once the two 24 port switches have been stacked they behave as a single logical 48 port switch Figure 2 Stacked Switch Cabling Switch 1 Stack1 Stack2 Stack1 Stack2 Switch 3 Stack1 Stack2 Stack1 Stack2 Switch 2 Switch 4 Rear panel n CASSATT ACTIVE RESPONSE CONTROL NOL 3 Connect the control nodes to the shared storage hardware as follows If Then a SAN is used for shared storage e Insert a Host Bus Adapter HBA into each control node e Connect one end of the fiber cable to the HBA and the other end to your site s SAN a NAS and dual ported disk is used e Insert the connectivity card required for the dual for shared storage ported disk into each control node e Connect the other end of each card to the dual ported disk 4 Using crossover cables create an interswitch link ISL between the two Cisco 3750 switches The recommended configuration uses two ISL connectio
11. ding application nodes are in a separate document which you should consult when you ate ready to cable application nodes into your Cassatt Active Response environment Figure 1 highlights the control node and network switches but also suggests application node cabling Figure 1 Switch Panel and Control Node Cabling Switch stack 1 1 5 7 9 11 13 15 17 19 21 23 ut N1 1 N5 1 N9 1 N13 1 N17 1 N21 1 N20 P N12 P N3 P a ons N3 1 N7 1 N11 1 N15 1 N19 1 N23 1 N16 P N8 P 2 6 8 10 12 14 16 18 20 22 24 1 5 7 9 11 13 15 17 19 21 23 a ssa N2 1 N6 1 N10 1 N14 1 N18 1 N22 1 N19 P N11 P N1 P N4 1 N8 1 N12 1 N16 1 N20 1 N23 P N15 P N7 P 2 4 6 8 10 12 14 16 18 20 22 24 Switch stack 2 5 7 9 11 13 15 17 19 21 23 N1 2 N5 2 N9 2 N13 2 N17 2 N21 2 N18 P N10 P N4 P 3 a N3 2 N7 2 N11 2 N15 2 N19 2 N23 2 N22 P N14 P N6 P 6 8 10 12 14 16 18 20 22 24 5 7 9 11 13 15 17 19 21 23 N2 2 N6 2 N10 2 N14 2 N18 2 N22 2 N17 P N9 P N2 P E s 2 a N4 2 N10
12. ns between the Cisco switches for increased bandwidth and redundancy As suggested in Figure 1 create the first half of the ISL between the stacked switches as follows e Connect port 1 on switch 1 to port 1 on switch 3 5 Then create the second half of the ISL between the stacked switches as follows e Connect port 1 on switch 2 to port 1 on switch 4 e Connect port 2 on switch 1 to the edge router to make the first gateway connection e Connect port 2 on switch 3 to the edge router to make the second gateway connection 6 Using the Cisco switches and control node port information in Figure 1 connect the control nodes to the switches using category 5 or 6 Ethernet cables The recommended configuration uses dual Ethernet connections to each control node for redundancy Do this as follows e From control node 1 s back panel Connect Gb1 port 1 C1 1 into port 3 on switch 1 Connect Gb2 port 2 C1 2 into port 3 on switch 3 Connect the remote management controller port C1 P into port 24 on switch 4 e From control node 2 s back panel Connect Gb1 port 1 C2 1 into port 4 on switch 1 Connect Gb2 port 2 C2 2 into port 4 on switch 3 Connect the remote management controller port C2 P into port 24 on switch 2 If you are cabling application nodes you can follow the diagram in Figure 1 For more application node specific cabling instructions see the Info Central site CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK S
13. port Used to connect the second control node s second onboard Gigabit Ethernet connection Gb 2 into the Cassatt Active Response environment through the designated switch port Used to connect the first control node remote management controller into the Cassatt Active Response environment Used to connect the second control node remote management controller into the Cassatt Active Response environment Used to connect application nodes into the Cassatt Active Response environment Used to connect application nodes into the Cassatt Active Response environment CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 18 What about connecting application nodes Remaining switch ports can be used to connect application nodes and their remote management controllers into the Cassatt Active Response environment In general distribute the connections evenly between the switches and the application nodes both the application node NICs and their associated remote management controller NICs For more information see the Info Central site for detailed information on setting up application nodes Racking and cabling guidelines To cable your control nodes to the network switches according to Figure 1 follow these steps Remember that this sample configuration uses four network switches so use these instructions as a guideline for your own configuration 1 Rack all switches and control node hardware a
14. rnet1 0 5 switchport mode access no ip address no mdix auto spanning tree por l interface Gigabit tfast Ethernet1 0 6 switchport mode access no ip address no mdix auto spanning tree portfast lt ports 7 through 23 output on the first switch in the switch stack should be the same as shown above for interface GigabitE thernet interface Gigabit 0 6 gt Ethernet1 0 24 switchport mode access no ip address no mdix auto spanning tree por l interface Gigabit no ip address tfast Ethernet2 0 1 no mdix a uto channel group 1 mode on interface switchpor GigabitEthernet2 0 2 t mode access no ip address no mdix a spanning uto tree portfast CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 31 interface GigabitEthernet2 0 3 switchport mode access no ip address no mdix auto spanning tree portfast interface GigabitEthernet2 0 4 switchport mode access no ip address no mdix auto spanning tree portfast j interface GigabitEthernet2 0 5 switchport mode access no ip address no mdix auto spanning tree portfast j interface GigabitEthernet2 0 6 switchport mode access no ip address no mdix auto spanning tree portfast j lt ports 7 through 23 output on the first switch in the switch stack should be the same as shown above for interface GigabitEthernet2 0 6 gt interface GigabitEthernet2 0 24 s
15. than 1 and 2 is Go to step 4 indicated in the output If the switch number is 1 and 2 Go to step 7 Enter the configuration mode as follows At this prompt Enter Notes Switch configure terminal Displays the following output At this prompt Enter configuration commands Renumber the switch as follows Enter one per line End with CNTL Z Notes sw01 switch 3 renumber 2 Replace 3 with the number displayed for your switch Replace 2 with the number that is missing Displays the following output WARNING Changing the switch number may result in lost or changed configuration for that switch At this prompt Enter Notes Do you want to continue confirm Y Displays the following output Changing Switch Number 3 to Switch Number 2 New Switch Number will b ffective after next reboot 6 Exit the configuration mode as follows At this prompt Enter Notes sw01 exit 7 Halt and perform a cold restart as follows At this prompt Enter Notes sw01 gt reload System configuration has been modified no Save yes no Proceed with reload confirm y Displays the following output 00 08 23 SSYS 5 RELOAD Reload requested Base ethernet MAC Address 00 11 bb 7e 94 80 Xmodem file system is available The password recovery mechanism is enabled Initializing
16. to all ports on the switch If disabling IGMP snooping impacts network performance and if non Cassatt Active Response applications running on the Cassatt Active Response system do not use the multicast functionality disabling IGMP snooping can be done on the control nodes only In this case do not disable IGMP snooping on the switch instead refer to the Catalyst 3750 Switch Software Configuration Guide to configure the four interfaces on the control nodes to statically join the multicast group 15 Turn off the HTTP server as follows At this prompt Enter Notes sw01 config no ip http server The HTTP server is not used and is turned off as a security precaution 16 Set the message of the day as follows At this prompt Enter Notes sw01 config banner motd Displays the following output set the message as required by yout site policy Enter TEXT message End with the character Ye re kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk insert message here kkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkxkk 17 Turn all the interfaces back on as follows At this prompt Enter Notes sw01 config interface range GigabitEthernet 1 0 1 24 sw01 config if range no shutdown sw01 config if range exit sw01 config interface range GigabitEthernet 2 0 1 24 sw01 config if range
17. which is often inconvenient 5 Turn off all interfaces on the first switch as follows At this prompt Enter Notes Switch config interface range GigabitEthernet 1 0 1 24 This step is done to prevent network loops from forming because the configuration is only partially enabled at this time Switch config if shutdown range Switch config if exit range 6 Turn off all the interfaces on the second switch as follows At this prompt Enter Notes Switch config interface range GigabitEthernet 2 0 1 24 This is done for the same reason as stated in the previous step Switch config if shutdown range Switch config if exit range 7 Set the host name of the switch stack as follows At this prompt Enter Notes Switch config hostname sw01 Use your site specific name instead of sw01 used as an example each switch should have a unique name 8 Set the switch stack s enable password as follows At this prompt Enter Notes sw01 config enable secret system Use your site specific password instead of the system password used as an example 9 Turn off the VLAN trunking protocol VTP as follows At this prompt Enter Notes sw01 config vtp mode transparent Displays the following output sw01 config Setting device to VIP TRANSPARE
18. witchport mode access no ip address no mdix auto spanning tree portfast j interface Vianl no ip address shutdown l ip classless no ip http server l Pat banner motd C KEKE KKK KKK KKK KKK KKK KKK KKK KKK KKK KK KKK IE XXX KKK KK KKK KK KK KKK KKK KKK KK KKK KKK KKKKKKKHK G line con 0 line vty 5 15 j end CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 32 21 Save the configuration across a reboot of the switch as follows At this prompt Enter Notes sw01 copy running config startup config Displays the following output Destination filename startup config Building configuration OK sw01 22 Configure the second Cisco switch stack by repeating step 1 in Connecting the switch to a terminal server on page 21 through step 21 in Setting switch options on page 24 When you have completed configuring all switch stacks plug them in CASSATT ACTIVE RESPONSE CONTROL NODE AND NETWORK SWITCH CABLING EXAMPLE 0S 0S
19. you must delete the startup configuration and virtual local area network VLAN database files Execute the following privileged command sequence to restore the Cisco Catalyst 3750 Series switch configuration to the original factory setting 1 Delete the startup configuration and configuration files as follows At this prompt Enter Notes sw01 gt enable sw01 write erase Displays the following output Erasing the nvram filesystem will remove all configuration files Continue confirm y OK Erase of nvram complete 00 06 43 SYS 7 NV BLOCK INIT Initalized the geometry of nvram E 7 2 Delete the VLAN database as follows At this prompt Enter Notes sw01 delete flash vlan dat Delete filename vlan dat Select Enter Delete flash vlan dat confirm y At this prompt If the switch was used previously in a switch stack and is now in a different switch stack it may have a switch number other than 1 and 2 To determine if the switch number must be reset display the switch configuration as follows Enter Notes sw01 show switch Displays the following output Current Switch Role Mac Address Priority State i Master 0011 bb7e 9480 1 Ready 2 Slave 0011 bb25 ce80 1 Ready Current Switch Role Mac Address Priority State 1 Master 0011 bb7e 9480 1 Ready 2 Slave 0011 bb25 ce80 1 Ready If Then If a switch number other
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