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New Member

mixing port and vlan based EoMPLS VPN

Hi

Does anyone know if you can have a EoMPLS VPN where one end is terminated to a dot1q subinterface and the other end is port based such as below.

Router1

int fa0/0.1

enc dot1q 1 native

!

int fa0/0.2

enc dot1q 2

xconnect 10.10.10.102 2 enc mpls

!

Router2

int fa0/0

xconnect 10.10.10.101 2 enc mpls

!

When I try to do this in a lab the status of the circuit shows as down and doesnt work but works as soon as I change Router2's end to a subinterface with dor1q vlan of 2.

Does anyone know if the above is possible,

Kind Regards

Kev

3 REPLIES

Re: mixing port and vlan based EoMPLS VPN

Hi

The only I can see this working is if you make VLAN 2 native on Router 1 instead of VLAN 1. Router 2 will receive the TAG'd frame and bin it. By making VLAN 2 native, no encapsulation will be used so there will be no issue.

Cisco Employee

Re: mixing port and vlan based EoMPLS VPN

Kevin,

This can be done using L2VPN Interworking. Please refer to the following link for more information about this feature.

http://www.cisco.com/en/US/docs/ios/12_0s/feature/guide/fsinterw.html#wp1054945

Regards

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: mixing port and vlan based EoMPLS VPN

Hi

Thanks for the replies, it looks as though on the above link that the "Ethernet to VLAN over AToM (Bridged): Example " example will do just what I need so will test this one out. Do you know what the "interworking ethernet" does under the pseudowire-class statment, does this remove the dot1q tag before passing it down the pseudowire to the peer router.

Regards

Kev

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