[c-nsp] Bridging Ethernet VLANs over T1

[Joe Freeman]

If it were me, I'd look at using frame encaps on the T1, then use a seperate
dlci for each vlan.

On Fri, May 30, 2008 at 12:45 PM, Fred Reimer <freimer at ctiusa.com> wrote:

> By using the same bridge group number for both VLANs would you not be
> merging the two VLANs into one bridge group?  That's not what you want, is
> it?  You may want to use a separate bridge group number for the two VLANs,
> like the example in the document you quoted.
>
> bridge 1 protocol ieee
> bridge 2 protocol ieee
> !
> interface ethernet 0
>  vlan-range dot1q 1 600
>  bridge-group 1
>  vlan-range dot1q 800 4000
>  bridge-group 2
> !
> interface serial 0
>  encapsulation ppp
>  bridge-group 1
> !
> interface serial 1
>  encapsulation ppp
>  bridge-group 2
>
> Two bridge groups, two serial interfaces, for two separate VLANs.
>
> Fred Reimer, CISSP, CCNP, CQS-VPN, CQS-ISS
> Senior Network Engineer
> Coleman Technologies, Inc.
> 954-298-1697
>
>
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> > bounces at puck.nether.net] On Behalf Of Gary T. Giesen
> > Sent: Friday, May 30, 2008 12:11 PM
> > To: cisco-nsp at puck.nether.net
> > Subject: Re: [c-nsp] Bridging Ethernet VLANs over T1
> >
> > 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.h
> > tml),
> > >> 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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