[c-nsp] QoS on Cisco 2600
Jeff Wojciechowski
Jeff.Wojciechowski at midlandpaper.com
Fri Jul 2 09:09:26 EDT 2010
All-
I am pretty new at using NBAR - does the config below ensure that traffic in each direction (TCP 1494 from client to server *AND* the random TCP port between server to client) gets prioritized?
I have the same class map "match protocol citrix" configured on each of my WAN routers (all running 12.4-22.T3).
So I guess the question boils down to "what does NBAR specifically use to classify traffic such as Citrix"?
Naturally the goal is to ensure that *ALL* Citrix traffic is given priority since we don't do any mapped drives/printing directly to our thin clients.
Thanks,
-Jeff
-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Jeff Wojciechowski
Sent: Thursday, July 01, 2010 10:22 AM
To: Stephane MAGAND; cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] QoS on Cisco 2600
Hi Stephanie,
Here's what we have configured:
class-map match-all citrix-all
match protocol citrix
policy-map PPS
class citrix-all
set ip dscp cs3
bandwidth 800
class class-default
fair-queue
set ip dscp af21
ip nbar protocol-discovery on all interfaces
service policy output PPS on my WAN interface
(in this case we are giving Citrix 800kbps and using Fair Queuing on remainder of traffic) Not sure if this will work on a 2600.....this is running on a 3825. I think the issue will be whether or not your 2600 will do NBAR.
Then do:
Show policy map interface *wan interface* to verify packets are going thru queue - in my case:
Class-map: citrix-all (match-all)
55310079 packets, 4798639048 bytes
5 minute offered rate 340000 bps, drop rate 0 bps
Match: protocol citrix
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/52/0
(pkts output/bytes output) 55310028/4798625680
QoS Set
dscp cs3
Packets marked 55310080
bandwidth 800 kbps
Thanks,
-Jeff
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