From: Dennis J. Hartmann (dennisjhartmann@hotmail.com)
Date: Wed Apr 13 2005 - 15:39:50 GMT-3
While reading through previous posts in my E-Mail, I noticed this
one.
While I agree with Bob, I would like to qualify something Bob has
mentioned. The shape adaptive command will only throttle down the rate to
the average rate after receiving BECN messages, not FECNs. FECNs could be
used to set BECNs though (as follows):
If the receiver of the traffic receives FECNs, the FECNS can be sent
back to the source using a Q.922 test frame that marks the BECN bit in the
frame-relay header so the source of the initial traffic using the shape
fecn-adapt command in the MQC.
Sincerely,
Dennis Hartmann
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Bob
Sinclair
Sent: Wednesday, March 30, 2005 8:07 PM
To: Jongsoo kim; ccielab@groupstudy.com
Subject: Re: [ERR] Traffic shaping #2-- FRTS vs Policy-map shaping
Jongsoo,
Have you noted the command -shape adaptive- is available in a policy-map?
Seems you can use MQC for adaptive shaping using BECN and FECN. Here is a
link:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122/122newft/122
t
/122t13/frqosmqc.htm#1052942
Bob Sinclair
CCIE #10427, CCSI 30427, CISSP
www.netmasterclass.net
----- Original Message -----
From: Jongsoo kim
To: ccielab@groupstudy.com
Sent: Wednesday, March 30, 2005 6:43 PM
Subject: Re: [ERR] Traffic shaping #2-- FRTS vs Policy-map shaping
It seems like
frame-relay adaptive-shaping becn + frame-relay mincir = shape adaptive
> ---------- Forwarded message ----------
> From: Jongsoo kim <bstrt2002@gmail.com>
> To: Group Study <ccielab@groupstudy.com>
> Date: Wed, 30 Mar 2005 18:20:37 -0500
> Subject: Traffic shaping #2-- FRTS vs Policy-map shaping
> I list legacy FRTS command vs policy map command that performs
> similar function.
>
> FRTS Policy map
> Frame-relay mincir = bandwidth
> Frame-relay cir = cir under shape
> Frame-relay bc = bc under shape peak
> Frame-relay be = be under shape peak
> frame-relay broadcast-queue = shape max-buffers
> frame-relay adaptive-shaping becn = N/A
> frame-relay adaptive-shaping foresight = N/A
>
> INTERFACE Policy map
> traffic-shape fecn-adapt = shape fecn-adapt
>
> Anyone can add on regarding this aspect of FRTS vs Policy-map shaping.
>
> Thanks
>
> Jongsoo
>
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