[nsp] Multiple T1s: MLPPP vs. equal path CEF

Bruce Robertson bruce at greatbasin.net
Wed Aug 20 12:17:53 EDT 2003

We're using MLPPP to bond multiple T1s, rather than using CEF to load balance.
Aside from the fact that MLPPP is a more elegant solution in my opinion, I've
been using this configuration because of an assumption I've been making.  Since
one of my routers is about to undergo CPU meltdown due to the MLPPP overhead, I
though it was time that I verified this assumption.

Is it not true that when using equal path CEF, the maximum speed a single
TCP stream can attain is 1.5 Mb/s, no matter how many T1s are in the group?
If this is true, I will be forced to continue to use MLPPP, and probably
upgrade my router, rather than switch to CEF.  It's vital that the connection
appears to the two endpoints to be N x 1.5 Mb/s

Thanks for your comments!

Bruce Robertson, President/CEO				     +1-775-348-7299
Great Basin Internet Services, Inc.			fax: +1-775-348-9412

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