Symptom

Cat9600 initially supported StackWise Virtual with a single supervisor in each chassis, also called Dual Supervisor SVL. Recently support was added for StackWise Virtual with a dual supervisors in each chassis, also called Quad Supervisor SVL. During the migration from Dual Supervisor SVL to Quad Supervisor SVL switch number is not updated in In-Chassis Standby (ICS) supervisor module in case there is a mismatch.

Conditions

Cat9600 Quad Supervisor SVL setup inserting a supervisor module that already switch number set to value X [for example it was taken from another SVL pair] into a chassis that has another supervisor already booted up and having switch number set to value Y

Workaround

upon first insertion of this supervisor module, break into rommon by pressing Ctrl+C and set switch number to a correct value manually Each Chassis should have it's own switch number. Within a given chassis, each supervisor needs the same switch number. For example: 9606-01 ---- 9606-02 9606-01 / Sup 1 = SWITCH_NUMBER 1 9606-01 / Sup 2 = SWITCH_NUMBER 1 9606-02 / Sup 1 = SWITCH_NUMBER 2 9606-02 / Sup 2 = SWITCH_NUMBER 2 in ROMMON, the current variable can be seen using the "set" command. 9606-02/ Sup 1 rommon 1 > set ! output omitted for brevity ROMMON_AUTOBOOT_ATTEMPT=3 SWITCH_NUMBER=1 SYSTEM_SERIAL_NUM=CAT######## TEMPLATE=sda to change the variable, issue the command on both supervisors. rommon 2> set SWITCH_NUMBER 2 Verify: rommon 3 > set ! output omitted for brevity ROMMON_AUTOBOOT_ATTEMPT=3 SWITCH_NUMBER=2 SYSTEM_SERIAL_NUM=CAT######## TEMPLATE=sda

Further Problem Description