Resolving Module 3 Mismatches in a RUCKUS ICX 7550 Stack

When a RUCKUS ICX 7550 stack unit rejoins a stack with a different module type installed as Module 3, a configuration mismatch occurs, and the active controller places the stack unit in non-operational mode.

Follow these steps to correct a module configuration mismatch in a RUCKUS ICX 7550 stack.

  1. Enter the show stack command to confirm that a unit has become non-operational due to a configuration mismatch. An error message such as the following is displayed: 
    device# T=3m26.3: Election, I 4cb1.cd20.29f8 was alone --> active, ID=1, pri=128, 2U(1-2), A=u1, nbr#=1 1, reason: u2: port-up, , 
Error - configuration mismatch at u2 module 3, config = icx7600-100g-1port-100g-module, but is icx7600-qsfp-2port-80g-module.
Please remove u2 and edit config, or delete module config and let it learn.
  2. Use one of the following options to resolve an identified configuration mismatch:
    • Option 1: Remove the unit from the stack and allow it to rejoin.
    • Option 2: Remove the incorrect module configuration and allow the correct module information to be learned. Within Option 2, you can choose from the following:
      • Option 2a: In global configuration mode, enter the no stack unit command followed by the stack number of the offending device. 
        device(config)# no stack unit 2

        The example removes stack unit 2 from the stack and shows the unit rejoining the stack with the correct configuration.

      • Option 2b: In stack unit configuration mode for the non-operational unit, enter the no module 3 command. 
        device(config)# stack unit 2
device(config-unit-2)#no module 3
  3. (Optional) Enter the show module command to verify that the new configuration for Module 3 has been learned. 
    device# show module
       Module                                         Status Ports Starting MAC  
U1:M1  ICX7550-48F 48-port Management Module            OK     48   4cb1.cd20.29f8
U1:M2  ICX7550-100G 2-port 200G Module                  OK     8    4cb1.cd20.2a29
U1:M3  ICX7600-2X40GQ 2-port 80G Module                 OK     8    4cb1.cd20.29f8
U2:M1  ICX7550-48ZP POE 48-port Management Module       OK     48   c803.f53a.7c46
U2:M2  ICX7550-100G 2-port 200G Module                  OK     8    c803.f53a.7c77
U2:M3  ICX7600-2X40GQ 2-port 80G Module                 OK     8    c803.f53a.7c7f

    The example displays the updated configuration of Module 3 in stack unit 2 as a 2-port 80-Gbps module.

  4. (Optional) Enter the show stack command to confirm that the stack unit has returned to operation. 
    device# show stack
T=11h44m16.0: alone: standalone, D: dynamic cfg, S: static
ID   Type          Role    Mac Address    Pri State   Comment                   
1  S ICX7550-48F   active  4cb1.cd20.29f8 128 local   Ready
2  S ICX7550-48ZP  standby c803.f53a.7c46 128 remote  Ready
Parent topic: Resolving Module 3 Mismatches