cos is found in a portion of the vlan-id field of a layer 2 packet.
IP precedence is found in the ip tos field of an ip packet.
They are two seperate fields found in two different types of packet
header.
You can map hte ip precednce to the cos and vice-versa on the 3550
switch.
--------------------------------------------------------------------
From: "Stefan Grey" <examplebrain@xxxxxxxxxxx>
Reply-To: "Stefan Grey" <examplebrain@xxxxxxxxxxx>
To: ccielab@xxxxxxxxxxxxxx
Subject: CoS and precedense
Date: Sun, 20 Aug 2006 19:23:14 +0100
What is the differnece between COS and precedense???
I have seen that both can be in the range of 0 to 7. But cos is used
in the mac acl and precedense is used in the ip acl.
What is finally the difference. What does for example mean the packet
with precedense 0 and cos 3??
Thanks,
_________________________________________________________________
Customise your home page with RSS feeds at MSN Ireland!
http://ie.msn.com/
_______________________________________________________________________
Subscription information may be found at:
http://www.groupstudy.com/list/CCIELab.html
