[c-nsp] QOS advice

[Ray Burkholder]

 They probably also need to measure loss and out of order packets.
Something that Cisco SLA can provide.  That may provide some missing info.
Also, NTOP has a voice RTP stream analyzer.

If their measurements show delay, jitter, bandwidth are ok, then there is
something unmeasured contributing, and sometimes it helps to find that
unmeasured (sometimes unmeasurable) quantity, so that you can get the QoS
stuff correct.

And when Qos is implemented, it really has to be end to end.  And some
providers drop the bits you are trying to manage.  So there is  a lot that
goes into the equation.

> -----Original Message-----
> From: cisco-nsp-bounces at puck.nether.net 
> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mihai 
> Tanasescu
> Sent: Saturday, February 03, 2007 18:32
> To: Pete Templin
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] QOS advice
> 
> Well they want something different from the default FIFO.
> 
> Their telephony solution provider, quite a big company on the 
> international market has a networking department here which 
> tends to pass their problem unto the networking department. 
> (measurements have been taken for delay, jitter, bandwidth 
> utilization and everything turned out allright).
> 
> 
> 
> Pete Templin wrote:
> 
> > mihai at duras.ro wrote:
> >
> >>
> >> Although there is no congestion present there, the voip solution 
> >> integrator has demanded that QOS be present on the networking 
> >> equipments.
> >
> >
> > (disclaimer: pet peeve when people are ambiguous)
> >
> > What are you worried about?  You don't need to make any changes to 
> > your configurations.  You already have a QOS policy in place.
> >
> > (yes, your policy is FIFO, but it's there and it provides a 
> particular 
> > quality of service.)
> >
> > If they want _priority queueing of COS 5 traffic_, they 
> should specify 
> > that.
> >
> > pt
> 
> 
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