[c-nsp] Bridging Ethernet VLANs over T1

Jay Hennigan jay at west.net
Fri May 30 12:05:24 EDT 2008


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/
Your local telephone and internet company - 805 884-6323 - WB6RDV


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