Bc Be S.O.S.....

From: Ted Richmond (rich_ted@xxxxxxxxx)
Date: Tue Aug 20 2002 - 05:14:53 GMT-3


   
Hello group,
When I finally thought that I've got Qos under-control
(err...well say 80% undercontrol), I came across a doc
- Selecting Burst and Extended Burst Values for
Class-Based Policing

http://www.cisco.com/warp/public/105/carburstvalues.html

This one really threw me off. Here are some questions:

* Are Be,Bc definitions different for shaping and
policing?

* The above doc says, "When bc is equal to be, the
traffic regulator cannot borrow tokens and simply
drops the packet when insufficient tokens are
available". I though this is the case when be=0

* The doc gives an example with 'CIR= 1 bit/sec, Bc= 2
bytes/sec and Be=4 bytes/sec' (pkt size as 1 byte). Is
this possible? How can he send 4 packets with the
above constraints and still maintain 1bit/sec CIR?

I am totally lost now - I should've never read this
doc. Please help -S.O.S

TIA.



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