From: Michael Snyder (msnyder@revolutioncomputer.com)
Date: Sat Feb 07 2004 - 12:36:55 GMT-3
If it's a pass thru router, (not the source, nor destination) rsvp would
do this automatic only for rsvp flows. Need to turn on some kind of
queueing that supports rsvp, and enable rsvp every router in the path.
Fair-queue would be an easy solution.
A bigger question is how do you configure a router to request rsvp flows
for voice traffic? Going by page 619 of the cisco dqos book, it doesn't
look easy.
I'll type the config from that page.
Ip rsvp pq-profile voice-like
Ip rsvp bandwidth 200 25
Interface s0/0
Service-policy output LLQ-policy
Dial-peer voice 300 voip
Destination etc
Session etc
Req-qos guaranteed-delay
Acc-qos guaranteed-delay
The author doesn't list the LLQ-policy but instead implies that any LLQ
policy would work because they all have hidden rsvp queues.
There's a trick question, write a llq policy for rsvp traffic. Going by
Wendell Odom, this would be a mistake, because of the hidden rsvp
entries in every policy.
Can anyone enlighten us on these issues?
I have never seen rsvp pq-profile voice-like nor the req-qos and acc-qos
commands in practice labs, thought the issues make perfect sense as
listed in the book I quoted.
-----Original Message-----
From: Arvind Yadav [mailto:arvindyadav@comcast.net]
Sent: Friday, February 06, 2004 11:03 PM
To: ccielab@groupstudy.com
Subject: Qos - voice
A Frame Relay link on a router need to be configured such a way so that
voice will receive a maximum of 200k, with a limit of 24k per flow.
int s0/0
ip rsvp bandwidth 200 24
This will apply to all the traffic, how can be this apply only to VOICE
traffic.
By using FRTS and CBWFQ you can define max bandwidth but not sure how to
define bandwidth per flow (24k).
Arvind
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