Specifications

254 Implementing IBM System Networking 10Gb Ethernet Switches
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csnum UUID Bay MAC asnum
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C1 05e9050bcd92450f903d7e60c581e4a4 7 00:25:03:6e:77:00 A1
C2 05e9050bcd92450f903d7e60c581e4a4 9 fc:cf:62:0a:49:00 A2
Attached Switches in Stack:
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asnum UUID Bay MAC csnum State
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A1 05e9050bcd92450f903d7e60c581e4a4 7 00:25:03:6e:77:00 C1 IN_STACK
A2 05e9050bcd92450f903d7e60c581e4a4 9 fc:cf:62:0a:49:00 C2 IN_STACK
Router#
9. Assign a Backup switch (optional).
To define a Member switch as a Backup that assumes the Master role if the Master switch
should fail, run stack backup <1-8> (Example 6-10).
Example 6-10 Assign a Backup switch
Router#
Router#configure terminal
Enter configuration commands, one per line. End with Ctrl/Z.
Router(config)#stack backup 2
Aug 17 6:59:27 ACC-3 NOTICE stacking: BE_BACKUP sent to fc:cf:62:0a:49:00
Aug 17 6:59:27 ACC-3 NOTICE stacking: Unit cpu fc:cf:62:0a:49:00 : BE_BACKUP
received from the master 00:25:03:6e:77:00
Aug 17 6:59:27 ACC-3 NOTICE stacking: I_AM_BACKUP received from
fc:cf:62:0a:49:00
Router(config)#^Z
Router#
The show stack switch command shows the Backup switch information (Example 6-11).
Example 6-11 Configured Backup switch
Router#show stack switch
Stack name:
Local switch is the master.
Local switch:
csnum - 1
MAC - 00:25:03:6e:77:00
UUID - 05e9050bcd92450f903d7e60c581e4a4
Bay Number - 7
Switch Type - 7 (1-10GbESM)
Chassis Type - 2 (BladeCenter H)
Switch Mode (cfg) - Master
Priority - 225
Stack MAC - 00:25:03:6e:77:1f