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PVST+ cisco trunked to nortel

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Hello all,

I am trying to do something that is simple on paper but difficult to

Cisco= 6509 IOS
Nortel= Pasport 8610 v3.7

Just trying to get the boxes to talk spanning tree (pass BPDUs with
each other) before moving onto four in a loop, trunking/routing is
fine. Setting the bridge priority has no effect.

On the cisco everything is default;

spanning-tree mode pvst
spanning-tree portfast bpduguard default
no spanning-tree optimize bpdu transmission
spanning-tree extend system-id
spanning-tree vlan 400 priority 8192

interface GigabitEthernet1/3
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 400
switchport mode trunk
spanning-tree cost 10

On the nortel;

stg 3 create mac 01:00:0c:cc:cc:cd ntstg disable
stg 3 add ports 3/8
stg 3 priority 65535

vlan 400 created in spanning tree 3 and port 3/8 added to it.

Not seeing anything sent to 01:00:0c:cc:cc:cd when i change bridge
priorities on the Nortel only on the Cisco.

Does port 3/8 need also have to be in vlan 1 for untagged BPDUs on the

On the cisco's how can you tell which spanning tree group a vlan is

Thanks in adavance.

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