[c-nsp] 7301 w/ bridge-group

[Rodney Dunn]

On Wed, Mar 19, 2008 at 11:08:44PM -0400, David Coulson wrote:
> Hi-
> 
> I am looking at a deployment with a pair of 7301s with two DS-3s 
> connecting them. The intention is to extend an Ethernet segment from one 
> port across the two DS-3s to a port on the second 7301. Having used 
> bridge-groups in the past for high bandwidth applications, I realize 
> that they perform horribly and everything is process switched.
> 
> 1) Is my assumption that the NPE-G2 will process switch everything 
> accurate? Last device I tried this on was a RSP4 based 7500, so I 
> realize the architecture is very different.

I thought we added bridging under interrupt level...still wouldn't recommend
it though.

> 
> 2) Is using L2TPv3 pseudo-wire with the DS-3s running as L3 routed 
> interfaces going to get better performance on this platform?

Yes.

> 
> 3) Did I miss something about bonding serial interfaces and having them 
> in a bridge group? I can't even fathom how that is supposed to work.

Don't do it. Let the box encapsulate the raw frame in a L2 tunnel
and move it over. It's much more efficient.

> 
> If anyone has other suggestions, I'm open to them.
> 
> David
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