From: Scott Morris (swm@emanon.com)
Date: Mon May 23 2005 - 18:27:12 GMT-3
This has been an interesting question over time...
First, without adaptive-shaping of some sort, the default action of a Cisco
device it to ignore any BECNs or FECNs.
Otherwise, way back when, I read something saying each BECN reduced traffic
flow by 25% for each one. I haven't been able to find that information
since then, so I have no earthly idea where it came from... But that's food
for thought anyway!
You'd fall back to your mincir if configured.
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Ralph Sherry
Sent: Monday, May 23, 2005 11:49 AM
To: ccielab@groupstudy.com
Subject: BECN question
I have a pretty simple question about BECN but one that I am having some
trouble finding the answer too. I have been playing around with this
feature in the lab and while I understand what it does I don't understand
the manner in which it does it. The way I understand it is BECN send
messages to the sending router to slow down the rate of traffic. How does
it decide how slow to reduce the speed? I also cannot figure out if BECN
will reduce traffic speed only down to the CIR or if it will reduce it to
near 0 if need be. Is there anyway to control this?
This archive was generated by hypermail 2.1.4 : Fri Jun 03 2005 - 10:12:00 GMT-3