From: Frank Jimenez (franjime@cisco.com)
Date: Tue Dec 31 2002 - 00:21:04 GMT-3
Maybe a better link (Watch the word wrap):
http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configur
ation_guide_chapter09186a00800b75a9.html
As I understand it, the answer to your question is "neither". Packets
are assigned weight based on the class map used to classify the packets.
If you are using IP Precedence to classify your packets, then it becomes
important. If you aren't using a classification, then you are back to
the default WFQ.
Frank Jimenez, CCIE #5738
franjime@cisco.com
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joe Chang
Sent: Monday, December 30, 2002 11:38 AM
To: ccielab@groupstudy.com
Subject: CBWFQ and IP precedence question
Hi all,
Is it true that in CBWFQ, the IP precedence of a packet does not have
a direct effect on the weighting of conversation queues? That's how Im
understanding the doc on CBWFQ:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/
qos_c
//qcprt2/xtocid16
As I understand it IP precedence is relevant only in the flow
differentiation step. Queues are weighed explicitly through the
bandwidth command.
But then at the near the end of the section the author goes on to say:
"CBWFQ uses the weights assigned to the queued packets to ensure that
the class queue is serviced fairly."
Is the guy talking about IP precedence weight or bandwidth-assigned
weight?
Thanks,
Joe
.
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