From: Haas, Brad (bhaas@netinfosys.com)
Date: Wed Feb 21 2007 - 21:51:48 ART
I am thinking this command may be what you are looking for... Not sure
about the OSPF part though.
From the Doc CD
http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124cg/hw
an_c/ch05/h_afrts.htm#wp1015363
Configuring Frame Relay Adaptive Traffic Shaping for Interface
Congestion
To configure a map class for adaptive traffic shaping for interface
congestion, use the following commands beginning in global configuration
mode:
Command Purpose
Step 1
Router(config)# map-class frame-relay map-class-name
Specifies a map class to define quality of service (QoS) values.
Step 2
Router(config-map-class)# frame-relay cir {in | out} bps
(Optional) Specifies the incoming or outgoing CIR for a Frame Relay VC.
The default is 56,000 bps.
Step 3
Router(config-map-class)# frame-relay mincir {in | out} bps
(Optional) Specifies the minimum acceptable incoming or outgoing CIR
for a Frame Relay VC. The default is CIR/2.
Step 4
Router(config-map-class)# frame-relay adaptive-shaping
interface-congestion [queue-depth]
Enables adaptive traffic shaping for interface congestion and sets the
queue depth.
"Frame Relay Adaptive Traffic Shaping for Interface Congestion Example
In the following example, the rate of traffic destined for PVC 200 will
be reduced to the minCIR if the number of packets in the interface queue
exceeds 10. When the number of packets in the interface queue drops
below 10, then the traffic rate will immediately return to the CIR."
interface serial0
encapsulation frame-relay
frame-relay traffic-shaping
frame-relay interface-dlci 200
class adjust_vc_class_rate
!
map-class frame-relay adjust_vc_class_rate
frame-relay cir 64000
frame-relay mincir 32000
frame-relay adaptive-shaping interface-congestion 10
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Thomas.W.Johnson@chase.com
Sent: Wednesday, February 21, 2007 3:26 PM
To: ccielab@groupstudy.com
Subject: QoS Shaping
Does anyone know if it's possible to adaptively shape traffic based on
the number of packets in queue? I saw this question once and if I am
remembering it correctly it wanted to configure a min cir of 256k if
there were more than 10 packets in queue. Additionally the solution was
not to include OSPF in this traffic shaping. I've hunted up and down
and in the doc cd and I did not see how you can perform traffic shaping
based on the number of packets in queue nor did I see anything with FRTS
that allowed you to select what traffic was shaped and what was not.
Has anyone ever heard of this?
Thomas Johnson
JP Morgan Chase
Global Network Implementation
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