From: Chris Hugo (chrishugo@xxxxxxxxx)
Date: Thu Aug 01 2002 - 04:41:55 GMT-3
Did a little research on CCO tonight.
Here is a QOS matrix for different types of traffic. They also specified we sho
uld always use provisioned (Diffserv) QoS rather than signaled (RSVP) when poss
ible a little farther down on the page. Input and thoughts is appreciated.
http://www.cisco.com/warp/public/105/wantqos.html#first
chris hugo
P729 <p729@cox.net> wrote: "how would policing alone guarantee delay sensitiv
ity?"
It won't. I was targeting this part of the statement:
"...will incur minimum processing delay and its packets are MORE lightly to
be dropped than delayed."
I didn't read "guaranteed delay sensitivity" into it, but rather removing
any queuing, weighted-fair or otherwise. On the other hand, PQ would make it
LESS likely for the traffic to be dropped.
Hmmm, now you've got me thinking. "Guarantee" delay and drop if the
guarantee can't be met...maybe they're talking about RSVP instead...
Regards,
Mas Kato
https://ecardfile.com/id/mkato
----- Original Message -----
From: "Omer Ansari"
To: "P729"
Cc: "Casey, Paul (6822)"
; "ccielab"
Sent: Wednesday, July 31, 2002 4:47 PM
Subject: Re: Processing delay sensitive traffic.
Mas Kato,
that does sound reasonable except for one thing; how would policing alone
guarantee delay sensitivity?
On Wed, 31 Jul 2002, P729 wrote:
> You'll want to look at some form of policing, like policing to a given
rate,
> accommodating bursts in a fashion so that TCP will self-police to the
> desired rate. Exceed the allowable burst and you're dropped (or marked and
> dropped further down the line).
>
> Shaping implies queuing which in turn implies delay.
>
> Regards,
>
> Mas Kato
> https://ecardfile.com/id/mkato
> ----- Original Message -----
> From: "Casey, Paul (6822)"
> To: "ccielab"
> Sent: Wednesday, July 31, 2002 12:40 PM
> Subject: Processing delay sensitive traffic.
>
>
> Hello,
>
> Can some help me with this
>
> Users on the local ethernet segment of Area 33 ABR are running a
> delay-sensitive application from a server
> Configure appropriate routers such that the application which uses udp
port
> 4700 will incur minimum processing
> delay and its packets are MORE lightly to be dropped than delayed.
>
>
> How you would you go about doing something like this..
>
>
>
> Paul Casey
> O2 Ireland
> Core Network Eng'g Team
> 76 Lower Baggot Street, Dublin 2.
> > * Mobile : +353 86 8143310
> E-mail: paul.casey@o2.com
>
> PLEASE NOTE THAT THE ABOVE CONFIDENTIAL INFORMATION I
>
> > See what you can do www.o2.ie
> >
>
>
>
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