Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
New Member

Bridging VLANS Cat5500 to Router

I have VLANs on the other side of an ATM PVC that I would like to extend to my data center across counter. The vlans on one side are attached to a Cat5500==>ATM PVC==>ATM Cloud==>ATM PVC==>Cisco 7206. I am using IRB bridging with BVI int. on my router to talk to the Cat5500. I would like to extend the vlans from the Cat5500 via the ATM connection to the 7206, then the 7206 would be attached a Cat4006 w/layer 3 via a trunk to split out the vlans. Is this a option that can be done.

3 REPLIES
Cisco Employee

Re: Bridging VLANS Cat5500 to Router

You can do it by bridging the ethernet interface on the 7200 with the ATM interface on the 7200. If you have multiple VLANS then you must have multiple PVCs (one for each VLAN). That in turn means that you have several ATM sub-interfaces on the 7200 router. You will then need to have a unique bridge-group for each VLAN/PVC combo that will be bridged with the corresponding ethernet vlan interface on the 7200 using the same bridge group.

New Member

Re: Bridging VLANS Cat5500 to Router

DO you have an example of this.

Cisco Employee

Re: Bridging VLANS Cat5500 to Router

E.g. sample config of bridging between ATM PVCs and a dot1q trunk on a router.

bridge-group 1 protocol ieee

bridge-group 2 protocol ieee

!

interface atm 1/0.1 point-to-point

bridge-group 1

pvc 0/100

!

interface atm 1/0.2 point-to-point

bridge-group 2

pvc 0/101

!

interface fast-ethernet 2/0.1

encapsulation dot1q 1 native

bridge-group 1

!

interface fast-ethernet 2/0.2

encapsulation dot1q 2

bridge-group 2

More information can be found at the following URLs:

www.cisco.com/warp/customer/121 (ATM technology)

www.cisco.com/warp/customer/473 (LANT technology)

91
Views
0
Helpful
3
Replies
CreatePlease to create content