RE: difference between BOD and Multilink

From: Richard Dumoulin (richard.dumoulin@vanco.es)
Date: Fri Jun 11 2004 - 08:26:46 GMT-3


You can do this:

Int bri0
Dialer load-threshold 10
Ppp multilink

And I believe it will accomplish the same thing as your second option,
except that "ppp multilink load-threshold" is buggy I have heard,

--RIchard

-----Original Message-----
From: Geert Nijs [mailto:geert.nijs@simac.be]
Sent: viernes, 11 de junio de 2004 13:13
To: ccielab@groupstudy.com
Subject: difference between BOD and Multilink

Hi all, this is my first question to the ccielab mailing list......

I am looking for detailed information regarding load-balancing using
Bandwidth-On-Demand. I have learned (the hard way!) that there is a
difference between ppp multilink and BOD.

Compare the following two BRI configurations (basic DDR config assumed):

int bri0
        dialer load-threshold 10

and

int bri0
        ppp multilink
        ppp multilink load-threshold 10

Both will add a second channel when the load reaches 10/255, however in the
first case you don't really have a ppp multlink, only two seperate channels.
I know that when you use ppp multilink packets are actually split, broken
apart, and a piece is put on every link in the multilink. So load- balancing
comes naturally.

But what if you use BOD ? if have tested the first config in my lab, and the
load doesn't get distributed fairly on both channels. How can i force the
load to be equally balanced in this case ??? Or what load-distribution
algoritme is used with BOD ??
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