Changes to Upgrade for Stacking from FastIron 08.0.90

The stacking port format is different beginning with FastIron 08.0.90. The change in format creates upgrade issues.

Upgrading a Stack to FastIron 08.0.90 or Later from Earlier Releases

Upgrades from earlier releases to FastIron 08.0.90 or later are seamless. FastIron 08.0.90 and later recognize the old format and parse the startup-config flash to convert the configuration to the new format. After upgrade, if you enter the write memory command to save the configuration, the new format is stored to the startup-config flash.

In the following example, an ICX 7550 stack is upgraded to FastIron 08.0.90 from the FastIron 08.0.80 startup-config flash. The user has not yet used the write memory command. Output for the show configuration command shows that the FastIron 08.0.80 startup-config flash remains in the old format. The command output for the show running-config command displays the runtime configuration in the new format.

ICX7550-48P Router# show configuration 
!
Startup-config data location is flash memory
!
Startup configuration:
!
ver 10.0.00_b255T243
!
stack unit 4
  module 1 icx7550-48-port-management-module
  module 2 icx7550-qsfp-2port-80g-module
  module 3 icx7600-qsfp-2port-80g-module
  stack-port ethernet 4/2/1
  stack-port ethernet 4/2/2
stack unit 5
  module 1 icx7550-48p-port-management-module
  module 2 icx7550-qsfp-2port-80g-module
  module 3 icx7600-qsfp-2port-80g-module
  stack-port ethernet 5/2/1
  stack-port ethernet 5/2/2
stack unit 6
  module 1 icx7550-48p-port-management-module
  module 2 icx7550-qsfp-2port-80g-module
  module 3 icx7600-qsfp-2port-80g-module
  stack-port ethernet 6/2/1
  stack-port ethernet 6/2/2
stack enable
stack rconsole-off
stack mac 8c7a.153f.1344
!
hitless-failover enable

=====================================

ICX7550-48P Router# show running-config 
Current configuration:
!
ver 09.0.10dT243
!
stack unit 4
  module 1 icx7550-48-port-management-module
  module 2 icx7550-qsfp-2port-80g-module
  module 3 icx7600-qsfp-2port-80g-module
  stack-port ethernet 4/2/1
  stack-port ethernet 4/2/2
stack unit 5
  module 1 icx7550-48p-port-management-module
  module 2 icx7550-qsfp-2port-80g-module
  module 3 icx7600-qsfp-2port-80g-module
  stack-port ethernet 5/2/1
  stack-port ethernet 5/2/2
stack unit 6
  module 1 icx7550-48p-port-management-module
  module 2 icx7550-qsfp-2port-80g-module
  module 3 icx7600-qsfp-2port-80g-module
  stack-port ethernet 6/2/1
  stack-port ethernet 6/2/2
stack enable
stack rconsole-off
stack mac 8c7a.153f.1344
!                                                                 
hitless-failover enable
!