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@rbfnet.com] Sent: Friday, February 09, 2001 2:48 PM To: Craig Holland Subject: Re: Need help with Cisco VLAN bridging....

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Has anyone had experience bridging multiple VLANs accross a

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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

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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

clear-channel the bridging tried a couple

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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