[c-nsp] transparent bridging, correct approach?

[Neal R]

   It would help to know what equipment is involved. Looks like 7500 or
7600 maybe? L2TP is one method to solve this problem ...

Peter Kranz wrote:
> In this situation, I have a single fiber from a remote location carrying 2
> VLAN's with 802.1q tags added on the remote side, one is desired to be a
> layer 2 bridge for customer traffic (VLAN 116) and the other is for routed
> traffic (BGP session, etc with the remove data center) (VLAN 12)..
>
> I envisioned doing the layer 2 bridging part with the 'bridge-group' command
> on the sub interface for the customer, but am getting the following errors
> in the logs when traffic shows up:
>
> Feb  7 11:33:37: %TBRIDGE-4-INVALIDMEDIA: RFC826_ARP received on
> GigabitEthernet1/1.116 - invalid media for transparent bridging
> Feb  7 11:33:42: %TBRIDGE-4-INVALIDMEDIA: RFC826_ARP received on
> GigabitEthernet1/1.116 - invalid media for transparent bridging
> Feb  7 11:33:47: %TBRIDGE-4-INVALIDMEDIA: DODIP received on
> GigabitEthernet1/1.116 - invalid media for transparent bridging
> Feb  7 11:33:52: %TBRIDGE-4-INVALIDMEDIA: DODIP received on
> GigabitEthernet1/1.116 - invalid media for transparent bridging
>
> The simplified config looks like this:
>
> !
> interface GigabitEthernet1/1
>  no ip address
> !
> interface GigabitEthernet1/1.12
>  description VLAN12 Routed traffic
>  encapsulation dot1Q 12
>  ip address x.y.z
>  no ip redirects
>  no ip proxy-arp
>  no cdp enable
> !
> interface GigabitEthernet1/1.116
>  description VLAN100 Layer 2 Bridge
>  encapsulation dot1Q 116
>  bridge-group 100
>  bridge-group 100 spanning-disabled
> !
> interface GigabitEthernet4/2
>  description Switched traffic destination
>  no ip address
>  bridge-group 100
>  bridge-group 100 spanning-disabled
> !
>
> Looking for advise on the 'right' way to do this..
>
> Peter Kranz
> Founder/CEO - Unwired Ltd
> www.UnwiredLtd.com
> Desk: 510-868-1614 x100
> Mobile: 510-207-0000
> pkranz at unwiredltd.com
>
>
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