[cisco-voip] QoS for Day to Day traffic

Lelio Fulgenzi lelio at uoguelph.ca
Mon Oct 12 10:51:18 EDT 2009


I don't know your network, and my network hat has some dust on it, but according to your match statements, it looks like you're matching actual voice traffic only. Do the phones not also have traffic that is not marked as voice traffic such as DHCP, TFTP, signalling, etc? Isn't that reguarl IP traffic? 

Also, how many phones at the remote site? We have a remote site with a hundred meg link as well, and we asked to get the maximum number of calls reserved. We're not even close to utilization, but I imagine, if we were, we would go with a mechanism like yours where it's reserved but shared. 

Just some thoughts. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Kevin Dunn" <cheesevoice at gmail.com> 
To: "Cisco Voice" <cisco-voip at puck.nether.net> 
Sent: Monday, October 12, 2009 10:41:19 AM GMT -05:00 US/Canada Eastern 
Subject: [cisco-voip] QoS for Day to Day traffic 




Hello my Pundits 

I have a 100Meg Ethernet WAN connection between two towns for DR purposes, and we are going to run "day to day" traffic (voice and data) over this circuit as well, now when replication and SAN to SAN traffic hits I don't want it to mess with the "day to day" traffic. The DR traffic will either source or destination to 10.31.0.0. So I made a couple of ACL's to match that IP to. The end result is I want to voice traffic to have priority and 3Megs of bandwidth, Day to Day traffic around 8 Megs of traffic and DR (San to San) the remaining 89%.... 

1. Do you think this will work? 
2. Do you think it is set up right? 



class-map match-any voice 
match dscp ef 
match protocol rtp audio 
class-map match-any DR 
match access-group 100 
class-map match-any day2day 
match access-group 101 

policy-map DRandVoice 
class voice 
priority percent 3 
class DR 
bandwidth remaining percent 89 
class day2day 
bandwidth remaining percent 8 

access-list 100 permit ip 10.31.0.0 0.0.255.255 
access-list 101 deny ip 10.31.0.0 0.0.255.255 
access-list 101 permit ip any any 




Kevin Dunn 
Marathon Cheese Corporation 


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