From: Salau, Yemi (yemi.salau@siemens.com)
Date: Fri Nov 23 2007 - 10:41:14 ART
Hello,
I believe by default, PQ treats all traffic coming into it using
weights, just like what CBWFQ does normally. LLQ basically brings the
priority capabilty to CBWFQ using that single queue. So you could have
different classes of traffic going into that single PQ, Cisco best
practises though recommends only voice traffic to go into the PQ because
of their behavioural attributes - I hope that makes sense.
So, you don't need to enable WFQ in the PQ as this is what goes on
within the PQ itself. Say if ftp, telnet, www, voice traffic all gets
put in the PQ, they should be treated fairly based on their weight, just
as CBWFQ basically. Do I need to enable WFQ for CBWFQ, wouldn't make
sense as CBWFQ in essense is WFQ with classification cabality of
traffic. So, LLQ just delivers prioritisation capability to CBWFQ>
Well, like I always say ... This is what I believe except when proven
otherwise :-) Please forgive my choice of jargonised english ... I'm
really having a bad day today.
Many Thanks
Yemi Salau
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joseph Brunner
Sent: Thursday, November 22, 2007 4:17 PM
To: 'CCIE'; ccielab@groupstudy.com
Subject: RE: In Configuring CBWRQ-PQ (LLQ), how I could configure WFQ
for the priority Q?
Why would you want wfq in the "priority queue"?
I think you need to read Wendell Odom's qos book... jitter and buffers
have
about a 20ms variable delay acceptance. WFQ is not going to guarantee
serialization delays. It simply waits for contention then handles
scheduling.
Or are you just testing things?
Thanks,
Joe
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
CCIE
Sent: Thursday, November 22, 2007 10:56 AM
To: ccielab@groupstudy.com
Subject: In Configuring CBWRQ-PQ (LLQ), how I could configure WFQ for
the
priority Q?
In Configuring CBWRQ-PQ (LLQ), how I could configure WFQ for the
priority Q?
Class-map RTP
Match protocol rtp
Policy-map QoS
Class RTP
Fair-queue ==> it is not available here??????
Regards,
Amin
This archive was generated by hypermail 2.1.4 : Sat Dec 01 2007 - 06:37:30 ART