Arista
IP Fabric Version: All
Known Affected platforms: Arista EOS, Platform 7280sr3, Version 4.26.4M
Description: The command show spanning-tree vlan detail
stops when it hits
a VLAN that is configured on the device but is not assigned to any ports (exception
is the default VLAN 1). This has been seen when running rapid-pvst
spanning-tree
but could possibly affect other versions.
Example
arista#show vlan
VLAN Name Status Ports
----- -------------------------------- --------- -------------------------------
1 default active
2 BAD_VLAN active
5 GOOD_VLAN active Et1, Et2
arista#sho span vlan det
Spanning tree instance for vlan 1
VL1 is executing the rapid-pvst Spanning Tree protocol
Bridge Identifier has priority 4096, sysid 1, address 0000.0000.0000
Configured hello time 2.000, max age 20, forward delay 15, transmit hold-count 6
We are the root of the spanning tree
No spanning tree information available for vlan 2
Result: Incomplete IP Fabric Path Lookups.
Temporary Fix: Remove the unused VLAN from the configuration using the no vlan #
command.
Permanent Fix: Unknown. Waiting for response from Arista.