PVST+ & Blocked Ports

[u35828]

Hi, I have a 6860E running 8.2.1.278R01 running PVST+.

I have two ports configured for a particular vlan, but one of them is showing blocked, when checking vlan membership.

Why am I seeing the Primary port duplicated, along with the bridge ID? I've tried rebooting the switch but to no avail.

Copied output below:

Spanning Tree Port Summary for Vlan 323
Oper Path Desig Prim. Op Op Loop
Port St Cost Cost Role Port Cnx Edg Guard Desig Bridge ID Note
-------+----+-------+-------+----+-------+---+---+------+----------------------+------
1/1/43 FORW 19 2 DESG 1/1/43 PTP EDG DIS 8143-e8:e7:32:ea:6c:1f
2/1/43 BLK 19 2 BACK 1/1/43 PTP NO DIS 8143-e8:e7:32:ea:6c:1f
0/1 FORW 1 1 ROOT 1/1/49 PTP NO DIS 8143-e8:e7:32:d6:47:ee

Thanks in advance,

John

[devnull]

Works as expected

You have two ports to a specific switch, transporting the same vlans.
One of the links is blocked. thats perfectly fine

You have lacp (agg 1)
you have a device on 1/43 forwarding in vlan 123
you have whatever Switch (no port type edge) connected to 2/43 which is backup Port to another link

[u35828]

It was discovered the equipment vendor was doing something unauthorized, which caused spanning tree to block ports.

They have since rectified the issue.

Regards,

John

[devnull]

Thanks for the follow-up.
Always remember a solution for this vendors: