From: Mark Mahan (mmahan@caprock.com)
Date: Tue Oct 16 2007 - 15:55:12 ART
I believe it eliminates the possibility of jitter caused by variable
transmission rates as PVC traffic shaping rates are throttled down from
the CIR when you get a BECN and ramp back up after a period no
congestion. With traffic locked at the minCIR rate when voice traffic
is present, you have a steady rate and since RTP should be in a PQ,
little jitter.
Mark Mahan
Network Engineer
-------------------------------
CapRock Communications
4400 S. Sam Houston Parkway E.
Houston, Texas 77048
Office: 832 668 2528
mmahan@caprock.com
www.caprock.com
--------------------------------------------------------
NOTICE OF CONFIDENTIALITY: This e-mail message may contain confidential information and is intended only for the person(s) named above. Any review, use, disclosure or distribution by any other person is prohibited. If you are not the intended recipient, please contact the sender by e-mail and destroy all copies of this message.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Navid Daghighi
Sent: Monday, October 15, 2007 5:17 PM
To: Cisco certification
Subject: frame relay voice adap
Hi,
Cisco doc says :
"Frame Relay voice-adaptive traffic shaping enables a router to reduce
the permanent virtual circuit
(PVC) sending rate to the minimum CIR (minCIR) whenever packets (usually
voice) are detected in the
low latency queueing priority queue or H.323 call setup signaling
packets are present."
Why would it be useful to reduce the sending rate, when there are
packets in a priority queue ?
Thanks,
Navid
This archive was generated by hypermail 2.1.4 : Fri Nov 16 2007 - 13:11:15 ART