[c-nsp] Bridging Ethernet VLANs over T1

[Gary T. Giesen]

Jay,

Thanks for the reply. Unfortunately that doesn't seem to work, I
assume because there's no way to specify which VLAN that IP actually
resides on. Normally bridge-groups/BVI's are only used to bridge one
VLAN, but in this case it's bridging multiple VLANs.

GG

On Fri, May 30, 2008 at 12:05 PM, Jay Hennigan <jay at west.net> wrote:
> Gary T. Giesen wrote:
>>
>> Hi all,
>>
>> I have an application that requires us to bridge Ethernet VLANs over a
>> T1. I've previously done this using Nortel/Tasman boxes, and have got
>> it working with a Cisco 1841 w/T1 WIC (per
>>
>> http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gt_bcp.html),
>> but I'm having one issue. The Tasman/Nortel boxes allow me to inject
>> an IP address into one of the VLANs for management purposes, whereas I
>> can't for the life of me figure out how to do it in Cisco-land.
>>
>> Cisco config snippet:
>>
>> bridge 1 protocol ieee
>>
>> interface FastEthernet0/0
>>  no ip address
>>  duplex auto
>>  speed auto
>>  vlan-id dot1q 10
>>  description Data VLAN
>>  bridge-group 1
>>  exit-vlan-config
>>  !
>>  vlan-id dot1q 20
>>  description Management VLAN
>>  bridge-group 1
>>  exit-vlan-config
>>  !
>> !
>>
>> interface Serial0/1/0
>>  no ip address
>>  encapsulation ppp
>>  service-module t1 clock source internal
>>  bridge-group 1
>
> bridge irb
>
> bridge 1 proto ieee
> bridge 1 route ip
>
> int bvi1
>  ip address 10.10.10.11 255.255.255.0
>
>
>
> --
> Jay Hennigan - CCIE #7880 - Network Engineering - jay at impulse.net
> Impulse Internet Service  -  http://www.impulse.net/
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>
>