Stacking problems
Adding additional slots to a Extreme Networks stack can yield a problem due to different licenses. It can be seen that the new slots don't take a role in the stack, a yellow blinking MGMT LED and that the login- prompt gets stuck at "(pending-aaa)".Slot-1 switch.5 # sh stacking
Stack Topology is a Daisy-Chain
Active Topology is a Daisy-Chain
Node MAC Address Slot Stack State Role Flags
------------------ ---- ----------- ------- ---
00:04:96:6c:b3:f8 5 Active <none> CA-
00:04:96:36:b0:f2 4 Active <none> CA-
00:04:96:7d:bf:f0 3 Active Standby CA-
00:04:96:7d:bf:f5 2 Active Backup CA-
00:04:96:7d:bf:f8 1 Active Master CA-
* - Indicates this node
Flags: (C) Candidate for this active topology, (A) Active NodeSlots 4 and 5 in the above example behave right this way. Taking a look into the logs show the following messages:
(O) node may be in Other active topology
11/19/2012 23:41:15.49 <Warn:DM.Warning> Slot-1: Slot-5 FAILED (1) License MismatchThe reason for this are different licenses on the slots. Slots 1-3 of the Extreme Networks stack are using Edge licenses- the new ones are running Advanced Edge.
11/19/2012 23:41:15.49 <Warn:DM.Warning> Slot-1: Slot-4 FAILED (1) License Mismatch
11/19/2012 23:41:15.30 <Crit:NM.NodeStateFail> Slot-1: Slot-5 has failed for the reason of "License Mismatch".
11/19/2012 23:41:15.30 <Crit:NM.NodeStateFail> Slot-1: Slot-4 has failed for the reason of "License Mismatch".
Including version 12.6.1 this has been no problem- the switch reduced its functionality automatically to the lowest license in the stack. Since version 12.6.2 some manual work needs to be done.
Slot-1 switch.6 # configure stacking license-levelAs written above the lowest license level in the stack is an Edge license. To get the stack up an running the whole stack needs to be configured for this level. Of course it is important to check if the higher level functions are needed! If so a license upgrade is necessary! When displaying the stacks state again the following is shown:
advanced-edge Advanced edge license
core Core license
edge Edge license
Slot-1 switch.7 # configure stacking license-level edge
This command will take effect at the next reboot of the specified node(s).
Slot-1 switch.8 # sh stacking
Stack Topology is a Daisy-Chain
Active Topology is a Daisy-Chain
Node MAC Address Slot Stack State Role Flags
------------------ ---- ----------- ------- ---
00:04:96:6c:b3:f8 5 Active Standby CA-
00:04:96:36:b0:f2 4 Active Standby CA-
00:04:96:7d:bf:f0 3 Active Standby CA-
00:04:96:7d:bf:f5 2 Active Backup CA-
00:04:96:7d:bf:f8 1 Active Master CA-
* - Indicates this node
Flags: (C) Candidate for this active topology, (A) Active NodeFrom now on the stack runs like every other stack powered by Extreme Networks- without any problems.
(O) node may be in Other active topology