I'm trying to configure the following scheme :
[LAN]--[CPE]-------<ATM 7200 ETH>----
The 2 ATM PVC's (16/2055 and 16/2056) should be bonded together to get a
fully transparent L2 link without any routing involved.
I browsed through the Cisco documentation, especially the "Layer 2 local
switching" document at
which says it's possible with the following config :
pvc 16/2055 l2transport
pvc 16/2056 l2transport
connect randomname atm1/0 16/2055 atm1/0 16/2056
The last command gives me the following error :
CONN: cannot connect two endpoints on the same interface
%CONN: Invalid Command
But the manual says :
"Starting with Cisco IOS Release 12.0(30)S, you can configure same-port
switching following the steps in this section. "
Can anybody tell me how to get this working? Is this a Cisco bug?
I'm running c7200p-advipservicesk9-mz.124-15.T1.bin on this box.
My hardware is :
Cisco 7206-VXR with PA-A3-OC3 for ATM connectivity and an NPE-G2 as a
the configuration looks like correct.
I post a pdf of troubleshooting ATM bridged PVCs
And Q & A
Also there is routed bridged encapsulation that could be an alternate way to do this.
I tested this several years ago and if I remember correctly it worked for me.
check also what the devices at the other end of PVCs expect in terms of ATM encapsulation and if they are using RFC 1483 bridged mode (that is they place an ethernet frame carrying an IP packet inside an ATM PDU).
the possible trick could be that of using a LAN interface to be placed in same briding group with the role of handling ethernet frames.
But this should be useful only if you want to route the IP packets.
Hope to help