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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 comple
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application nodes. Note that detailed instructions for adding application nodes are in a separate document, which you should consult when you are 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 3 5 79 19 21 23 11 13 15 17 ISL-1 C1-1 N5-1 N9-1 N13-1 N17-1 N21-1 N3-P N1-1 N12-P N20-P C2-1 N3-1
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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 Used to create the first half of interswitch link (ISL) connection between the two Cisco switches. ISL-2 Used to create the second half of the ISL connection between the two Cisco switches. GW-1 Used to create the first connection from the Cisco switch to the gateway. GW-2 Used to create the second connection from the Cisco switch to the gateway
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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 cabli
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3. Connect the control nodes to the shared storage hardware, as follows: If... Then... a SAN is used for shared storage • Insert a Host Bus Adapter (HBA) into each control node. • 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 • Insert the connectivity card required for the dual- for shared storage ported disk into each control node. • Connect the other end of each card to the dual-ported disk. 4. Using crossover cables,
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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.” Doi
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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 be
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3. 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: At this prompt... Enter... Notes sw01# show switch Displays the following output: Current Switch# Role Mac Address Priority State -------------------------------------------------------- *1 Master 0011.bb7e.9480 1 Ready 2
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Changing Switch Number 3 to Switch Number 2 New Switch Number will be effective 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> reload System configuration has been modified. no Save? [yes/no]: Proceed with reload? [confirm] y Displays the following output: 00:08:23: %SYS-5-RELOAD: Reload requested Base ethernet MAC Address: 00:11:bb:7e:94:80 Xmode
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2. Enter the privileged mode, as follows: At this prompt... Enter... Notes Switch> 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, wh
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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 pro
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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 no
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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 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 al
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%Portfast will be configured in 23 interfaces due to the range command but will only have effect when the interfaces are in a non-trunking mode 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,
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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)# 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...
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interface Port-channel1 no ip address ! interface GigabitEthernet1/0/1 no ip address no mdix auto channel-group 1 mode on ! interface GigabitEthernet1/0/2 switchport mode access no ip address no mdix auto ! interface GigabitEthernet1/0/3 switchport mode access no ip address no mdix auto spanning-tree portfast ! interface GigabitEthernet1/0/4 switchport mode access no ip address no mdix auto spanning-tree portfast ! interface GigabitEthernet1/0/5 switchport mode access no ip address no mdix auto
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! 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 ! interface GigabitEthernet2/0/5 switchport mode access no ip address no mdix auto spanning-tree portfast ! interface GigabitEthernet2/0/6 switchport mode access no ip address no mdix auto spanning-tree portfast ! ...
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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.
