Need help with Cisco VLAN bridging....
Craig Holland
cholland at yahoo-inc.com
Mon Feb 12 06:51:49 UTC 2001
I'm not sure what I had wrong with my config...but I scratched and started
over and this worked. It was also possible to do this using SDE
encapsulation on the HSSI interfaces. I received some traceback
messages...so decided to opt for the frame-relay solution.
Thanks! Everyone for your input!
craig
> -----Original Message-----
> From: Brett Frankenberger [mailto:rbf at rbfnet.com]
> Sent: Friday, February 09, 2001 2:48 PM
> To: Craig Holland
> Subject: Re: Need help with Cisco VLAN bridging....
>
>
> >
> >
> > Has anyone had experience bridging multiple VLANs accross a
> clear-channel
> > DS3? I have 2 3640's populated with 1 FE and 1 HSSI. They are
> connected by
> > a DS3. I've tried a couple of different configs, including turning one
> > router into a frame swich and building a PVC for each VLAN, but
> the bridging
> > didn't seem to work. I've tried running SDE directly between the HSSI
> > ports...and that didn't seem to work. I'm up a against a
> deadline here, and
> > would greatly appreciate any help you can offer. I've also
> tried a couple
> > of IRB configs.
>
> I'm guessing you are running 802.1q (or ISL) on the FE, and you want to
> bridge VLAN 1 on the one 3640 to VLAN 1 on the other 3640, and the same
> with VLAN 2, and so on. (And the 3640s are connected togethor via the
> DS3). Right?
>
> I've never done this, but I think the following should work.
> (Essentially, it's the frame switch thing you mentioned above).
>
> ROUTER #1
>
> frame-relay switching
> bridge 1 protocol ieee
> bridge 2 protocol ieee
> int fast X.1
> enc dot1q 1
> bridge-group 1
> int fast X.2
> enc dot1q 2
> bridge-group 2
> int HSSI X
> enc frame-relay
> frame-relay intf-type dce
> int HSSI X.1
> frame-relay interface-dlci 16
> bridge-group 1
> int HSSI X.2
> frame-relay interface-dlci 17
> bridge-group 2
>
>
> ROUTER #2
> [[ Same, except leave out "frame-relay switching" and "frame;relay
> intf-type dce" ]]
>
> OBviously the above has no provision for IP addresses for management,
> etc., That is left as an exercise for the reader. If you want the
> router to route to the VLANs in question as well as bridging them
> between the tw 3640s, you need to add something like
> bridge irb
> bridge 1 route ip
> bridge 1 bridge ip
> bridge 2 route ip
> bridge 2 bridge ip
> int bvi1
> ip address ...
> int bvi2
> ip address ...
>
> Or you could have a separate management vlan and do something like
> int fast X.3
> enc dot1q 3
> ip address ...
>
> (And possible a separate management PVC with a new HSSI sub-interface
> on each end.)
>
> -- Brett
>
>
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