[88885] in North American Network Operators' Group
Re: MLPPP over MPLS
daemon@ATHENA.MIT.EDU (Rodney Dunn)
Wed Feb 22 08:56:28 2006
Date: Wed, 22 Feb 2006 08:56:00 -0500
From: Rodney Dunn <rodunn@cisco.com>
To: Hyunseog Ryu <r.hyunseog@ieee.org>
Cc: Bill Stewart <nonobvious@gmail.com>, nanog@merit.net
In-Reply-To: <43FB7141.8070402@ieee.org>; from Hyunseog Ryu on Tue, Feb 21, 2006 at 02:00:01PM -0600
Errors-To: owner-nanog@merit.edu
For more specific discussion we can move it over to cisco-nsp
but here is a general document on it.
http://cco/en/US/products/sw/iosswrel/ps5207/products_feature_guide09186a00801f26c8.html#wp1045653
Rodney
On Tue, Feb 21, 2006 at 02:00:01PM -0600, Hyunseog Ryu wrote:
>
> Overall, MLPPP may work fine with MPLS as long as you have single
> virtual circuit from each physical circuit.
> Such as T1 channel from Channelized DS3...
> But you have to use sub-interface (logical interface) other than
> sub-channel from channeliezed circuit,
> you may have some problem.
> If you want to use QoS with MLPPP, some cases you may have to disable
> CEF because of side effects.
>
> Overall, what I was recommended by Cisco source, is, if possible, to use
> MLFR instead of MLPPP for MPLS integration.
>
> If you need more information, you can contact your local Cisco System
> Engineer, and he/she will give more information to you.
>
> Hyun
>
>
> Bill Stewart wrote:
> > I've also heard a variety of comments about difficulties in getting
> > Cisco MLPPP working in MPLS environments, mostly in the past year when
> > our product development people weren't buried in more serious problems
> > (:--) I've got the vague impression that it was more buggy for N>2
> > than N=2. There are a number of ways to bond NxT1 together, including
> > MLFR and IMA, and we've generally used IMA for ATM and MPLS services
> > and CEF for Internet. IMA has the annoyance of extra ATM overhead,
> > but doesn't have problems with load-balancing or out-of-order
> > delivery, and we've used it long enough to be good at dealing with its
> > other problems.
> >
> >
> >
> >
> >
