[c-nsp] 7200/10000 Performance for L2TP Extensions

[Steve Wright]

Hi Arie,

> For Cisco platforms, you should look at the 7301 (which is a 7200 NPE-G1
> in 1RU form factor). It has a special IOS version (not sure which) that
> should be able to perfrom very well for you because it uses both CPU's
> on the 7301 for LAC functionality (LNS should be out soon as well BTW).

We currently use a 7301 with a PA-A3 as an LNS which we're happy with.

The LNS side of things we have been doing for a while, just this is a new
area for me in doing the tunnel forwarding to other LNS (by setting up
various vpdn with accept-dialout as opposed to accept-dialin for the LNS
type situation with a domain to mathc and vpdn search-order domain)

> You could put 1 PA in this router, but I would put the ATM links on
> another box, for easier aggregation (we used to do it with a 6500/7600
> using FlexWan cards). In this way you are not loosing an ATM link if a
> specific router goes down

Hmm.. I'd be interested in getting more detail on this. I've never really
had the oppertuity/ need to look at those ranges, and haven't really thought
about them as part of the solution.

Well, their would be in the initial 2 physical circuits, and 2 PVC's per
circuit (so 4 PVC's in total), and should be go with the 7200 option, I
wouldn't put both links into 1, I'd use 2 x 7200

As opposed to 7200, I guess I could use 7301's actually.

Any other thoughts much appreciated.

Cheers,
Steve