[c-nsp] transparent bridging, correct approach?

[Curtis Doty]

bridge 100 protocol ieee !?

And don't forget to disable L3 on the MSFC interfaces...or run CRB. Maybe 
you already though of these.

../C

11:54am Peter Kranz said:

> It's a Cisco 6500 on one side, and a Extreme BD 6808 on the other adding the
> 802.1q tags..
> 
> 
> -----Original Message-----
> From: Neal R [mailto:neal at lists.rauhauser.net] 
> Sent: Wednesday, February 07, 2007 11:54 AM
> 
>    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..