[nsp] Transport E1/T1 signal transparently over IP

[Temkin, David]

I wouldn't see why not.  We're currently doing AToM ATM VP Trunking of
multiple DS-3's over MPLS (it's set up like this) between IGX switches,
which are very delay/jitter sensitive (Virtual trunking is not native to
them, it was a feature that was added later)

DS-3 from
IGX----|7500|---ethernet---|7200|---MPLS-----|7200|---|7500|---DS-3 to IGX

Provided the MPLS in the middle is stable, I wouldn't see why it would be a
problem.

-----Original Message-----
From: Alex Rubenstein [mailto:alex at nac.net] 
Sent: Thursday, October 30, 2003 1:38 PM
To: Ezequiel Carson
Cc: Temkin, David; cisco-nsp at puck.nether.net
Subject: RE: [nsp] Transport E1/T1 signal transparently over IP




On Thu, 30 Oct 2003, Ezequiel Carson wrote:

> is it possible? afaik there is only support for AAL5

Perhaps I should clarify. Suppose:


E1---|8510|-atm-|7200|-----MPLS-----|7200|-atm-|8510|---E1

The 8510 to 7200 is an ATM link, ie, DS3.

There is an LSP between the 8510's via the 7200's, that allow the 8510's to
gain a PNNI adjacency.

The 8510's, using E1-CES cards, would put a CBR PVC over the MPLS provided
ATM link.

The root question is, is the MPLS network stable enough, jitter wise, to
provide a CBR CES E1?




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