[nsp] MLPPP & Cisco

[Ian Cox]

At 02:26 PM 4/21/2003 -0700, Voll, Scott wrote:
>I was going to implement MLPPP but was advice not to in my particular
>case.  I do a lot of Video conferencing so it would cause out of order
>packets.  So if you have applications that are sensetive to out of order
>packets I would not use it.  Also, MLPPP adds some good old fashion over
>head.  Might be reason enough to not use MLPPP.

MLPPP does not causes out of order packet delivery. In MLPPP there are 
sequence numbers to prevent mis-ordering of packets, please review the 
RFCs. I know of at least one customer who runs multiple Channelized T3 
interfaces MLPPP, bundling 4xT1 into bundles for multicast delivery and 
have no issues with out of order packets.

Packet by Packet load balancing across parallel links is highly likely to 
cause out of order packets, but MLPPP will not cause out of order packets.


Ian


>Other things to look at are how is the data coming from that site.  Is
>it all coming from one IP address (like a Proxy)?
>
>Scott Voll
>Network Analyst, CCNA
>Willamette ESD
>scott.voll at wesd.org
>
>
>
>
>-----Original Message-----
>
>Is anybody out there running MLPPP to bond multiple T1's on Cisco
>routers? And if so, how many T1's, what platform and how is it running?
>I just had a request from someone that wants to connect 2 buildings via
>2 T1's initially, but they want to be able to go up to 6-7 T1's
>eventually and they want to load balance over all of the T1's.  I seem
>to remember that Cisco's have a max of 6 simultaneous path's (or is it
>4?), but with MLPPP, there really is no limit.  I also wouldn't object
>to performance guideline's if anybody has any.  Thanks.
>
>Peder
>
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