From: Anthony Pace (anthonypace@xxxxxxxxxxx)
Date: Sat Jul 06 2002 - 20:36:45 GMT-3
1. Is "FRAME-RELAY VOICE BANDWIDTH xx" just used for voice over Frame
or is it applicatble to VoIP over Frame? I have seen examples both ways
(in books) and I am wondering if one may be a typo.
2. If I want to shape for VoIP, can I get away with setting precedence
bits on the IP dial-peer and enableing WFQ on every interum interface
on every interum router? I read somewhere that just turning on WFQ
would cause the precedence bits to be taken into consideration. Is this
just wishfull thinking on my part?
3. If there are multiple routers between the dial-peers, do we need to
apply our traffic-shapaing mechanism to all interum interfaces on all
interum routers?, (Queing, RSVP (or whatever mechanism we chose)) I
would think the answer is yes if we think the link could degrade the
quality of the phone calls. I would think that the only execptions
would be that we set the precedence bits, and compress headers only on
INGRESS into the IP cloud.
4. How do we toggle "tc" interval? All the examples say 125ms. for DATA
and 10ms. for voice. Do we control it when we set the CIR and Bc ? Is
it the presence of voice keywords in the config that will throttle it
to 10ms?
If I set CIR=64K and Bc=8K have I set Tc to 125ms?
If I set CIR=64K and Bc=640 bytes then have I set Tc to 10ms?
If anyone knows any of these I would be very gratefull to hear the
answers.
Anthony Pace
-- Anthony Pace anthonypace@fastmail.fm-- http://fastmail.fm - One of many happy users: http://www.fastmail.fm/docs/quotes.html
This archive was generated by hypermail 2.1.4 : Sat Sep 07 2002 - 19:36:20 GMT-3