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RE: CoS and precedense posted 08/20/2006
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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,

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