Hi ,

following Problem:

On our PE Router/Switches we MUST run MST

Customers are directly connected to our PE

Now we are looking for a solution how to isolate Customer STP (RPVSTP, MST, Legacy) from our MST and to transport Customers BPDUs transparent via EoMPLS to the ohter customer-site.

This is not a Problem when using Port-Based EoMPLS, the we can do following config

Interface gig1/1

l2protocol-tunnel stp

xconnect c.c.c.c encapsulation mpls

But if we have to to VLAN-Based EoMPLS I have no Idea how to do this ?

As I know there is now way if running MST to disable STP for a particular VLAN, and its also not possible to configure l2protocol-tunnel in this scenario.

Also a BPDU-filter does not help, because customer wants to have his BDUs transported ?

Any Idea ?

Hubert

Konfig on N-PE

!## we need to run MST on the Box (so in my opinion that means that every VLAN is assigned to one MST-Instance, per default MST0

spanning-tree mode mst

spanning-tree mst configuration

revision 1

!## I think this is no possible to configure if MST is running

!## no spanning-tree vlan 100,200

interface GigabitEthernet1/1

!## l2protocol-tunnel stp   config only allowed on Switchport ??

!## the way how to configure VLAN-based MPLS on "normal" LAN-Line-Card

interface GigabitEthernet1/1.100

encapsulation dot1q 100

xconnect a.a.a.a encapsulation mpls

interface GigabitEthernet1/1.200

encapsulation dot1q 200

xconnect b.b.b.b encapsulation mpls