If the show stacking command shows the
stack state for a slot as Failed, check the following things:
Does the show stacking
stack-ports command show a port state as Inhibited? If so, the
problem might be a duplicate slot number. If more than one node is using the
same slot number, change the slot number on one of the affected nodes to a
unique slot number.
Is the affected node isolated by other nodes for which the
stack state is listed as Disabled? If so, you need to enable stacking on the
disabled nodes.
Enter the show slot detail command. If the command displays
License Mismatch, either upgrade the node license, or configure a license level
restriction so that all master-capable nodes are at the same effective license
level.
Enter the show slot
detail command. If the command displays Incompatible
EXOS Version, log into the master node and use the synchronize slot command to update
the failed node.
