Mst
I'm having some issues with MST, can anyone shed some light on the output below.
If this is the root bridge why is the port role Backup and the state Blocking?
CWYT-S-002#sh spanning-tree vlan 100
VLAN0100
Spanning tree enabled protocol rstp
Root ID Priority 32868
Address 0013.5f21.0f80
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32868 (priority 32768 sys-id-ext 100)
Address 0013.5f21.0f80
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
---- ---
Gi3/8 Back BLK 4 128.264 P2p
If this is the root bridge why is the port role Backup and the state Blocking?
CWYT-S-002#sh spanning-tree vlan 100
VLAN0100
Spanning tree enabled protocol rstp
Root ID Priority 32868
Address 0013.5f21.0f80
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32868 (priority 32768 sys-id-ext 100)
Address 0013.5f21.0f80
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Role Sts Cost Prio.Nbr Type
---- ---
Gi3/8 Back BLK 4 128.264 P2p
Networking, sometimes i love it, mostly i hate it.Its all about the $$$$
Comments
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EdTheLad
Member Posts: 2,111 ■■■■□□□□□□
I found my problem, the port is connected to an ASR9000, i had a bridge-domain setup with multiple vlans, i didn't realise this wasn't allowed and i can only have 1 vlan per bridge-domain otherwise the bpdus get re-circulated.Networking, sometimes i love it, mostly i hate it.Its all about the $$$$