GroupStudy.com GroupStudy.com - A virtual community of network engineers
 Home  BookStore  StudyNotes  Links  Archives  StudyRooms  HelpWanted  Discounts  Login
Re: frame relay voice adap posted 10/24/2007
[Chronological Index] [Thread Index] [Top] [Date Prev][Date Next] [Thread Prev][Thread Next]


Navid,
          Frame Relay adaptive shaping can be used to reduce the
sending rate when a network encounters congestion. Adaptive shaping
kicks in when the router receives BECNs, voice traffic might already
have been effected before BECNs were received.

 The Frame Relay Voice-Adaptive Traffic Shaping feature helps to
ensure voice quality by adjusting the rate of traffic based on the
presence of voice on the PVC.

Thanks,
Tarun

On 10/17/07, Gregory Gombas <ggombas@xxxxxxxxx> wrote:
> In addition, you are moving the queue from the carrier cloud to your
> router where you have control over what packets get priority!
>
> On 10/15/07, Wilson, Ryan # Atlanta <Ryan.Wilson@xxxxxxxxxxxxxxx> wrote:
> > Only thing I can think of is by dropping to min cir, you're hopefully
> > mitigating any possible congestion in the frame cloud.
> >
> >
> >
> >
> >
> >
> >
> > -----Original Message-----
> > From: nobody@xxxxxxxxxxxxxx [mailto:nobody@xxxxxxxxxxxxxx] On Behalf Of
> > Navid Daghighi
> > Sent: Monday, October 15, 2007 6:17 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
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html
>
> _______________________________________________________________________
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html