[c-nsp] Cisco 7206VXR as ATM switch

[Alex Rubenstein]

Well, with frame-relay, you can just do dlci-switching.

Thats a feature that has been around for as long as I can remember -- 
perhaps 7 or 8 years.

http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_configuration_guide_chapter09186a0080087d01.html#wp1002491

frame-relay switching

int s0/0
  frame-relay intf-type [dce | dte | nni]
  frame-relay route in-dlci interface out-interface-type out-interface-number out-dlci



On Wed, 1 Jun 2005, Bob Tinkelman wrote:

>
>> The feature you want is
>> http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120limit/120s/120s27/fslocal.htm
>
> Hmmm.  This is a feature I've never used before.
>
> I have a few routers which have been configured, forever,
> to use frame-relay encapsulation on inter-router DS3s and
> to bridge PVCs to each other or to Ethernet sub-interfaces.
>
> On one router I might have something like this:
>
> | bridge irb
> ...
> | interface Serial2/0/20:0.151 point-to-point
> !  description PVC on customer T1
> |  frame-relay interface-dlci 151
> |  bridge-group 151
> ...
> | interface Serial3/0.151 point-to-point
> !  description PVC to "other router"
> |  frame-relay interface-dlci 151
> |  bridge-group 151
> ...
> | bridge 151 protocol ieee
>
>
> And, then on another router:
>
> | bridge irb
> ...
> | interface Serial3/0.151 point-to-point
> !  description PVC to "other router"
> |  frame-relay interface-dlci 151
> |  bridge-group 151
> ...
> | interface GigabitEthernet2/0.151
> !  description Customer VLAN
> |  encapsulation isl 151
> |  bridge-group 151
> ...
> | bridge 151 protocol ieee
>
>
> This works fine. 
> Would I be better off using "Layer 2 Local Switching" instead? 
> The referenced document doesn't list F/R-to-Ethernet as supported,
> only ATM-to-Ethernet.  If that's really not supported, I guess I'd
> have to reconfigure the T3s to be ATM instead of Frame-Relay.
>
> --
> Bob Tinkelman <bob at tink.com>
> ISPnet, Inc.    718.464.4747
>

-- 
Alex Rubenstein, AR97, K2AHR, alex at nac.net, latency, Al Reuben
Net Access Corporation, 800-NET-ME-36, http://www.nac.net