Solved

Cisco 7206 VXR QOS Issues with PA-MC-T3 T1's

Posted on 2006-11-27
6
336 Views
Last Modified: 2012-08-13
I am currently running 20 T1's through a Multi Channel T3 Card in a 7206 VXR Router.  The VXR Router has an Asterisk PBX Connected to it through a PA-4E (4 Port 10MHZ) Interface.  One of the T1's runs to a remote office and we are having Voice QOS Issues.  The traffic on the T1 to the remote office can be very low but we have trouble when a lot of traffic is going through the router to and from all the other T1's.  What I need to know is the simplest way to provide Priority to the SIP Packets on the VXR Router.  I am currently running IOS Version 12.1(9).
0
Comment
Question by:hgallagher
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
6 Comments
 
LVL 12

Accepted Solution

by:
pjtemplin earned 500 total points
ID: 18020466
class-map match-all voip
  match ip precedence 5
policy-map ee-qos
  class voip
    priority percent 20
  class class-default
    fair-queue
!
int <serial-int>
 service-policy output ee-qos
!
end
0
 

Author Comment

by:hgallagher
ID: 18020571
Will this work with the 12.1(9) IOS?
0
 

Author Comment

by:hgallagher
ID: 18020589
Do I apply this to all of the T1's?
0
Don't miss ATEN at NAB Show April 24-27!

Visit ATEN at NAB Show to learn how our "Seamlessly Entertaining" solutions deliver fast, precise video streaming without delays for the broadcasting and media environment. ATEN will showcase its 16x16 Modular Matrix Switch (VM1600) and KVM Over IP Solution (KE6900 series).

 
LVL 12

Expert Comment

by:pjtemplin
ID: 18020592
If it doesn't, you've got one more good reason to update it.  I'd be on 12.2(40) or 12.0(27)S5 if I were you.
0
 
LVL 1

Expert Comment

by:Sean64
ID: 18021296
I agree with the above.  It's a good solution for voice prioritization.  However, just a thought:  Check the ethernet interfaces on the router, try to put them into full duplex mode.

i.e.
interface ethernet 3/1
 duplex full

Duplex problems can degrade the quality of your voice traffic when collisions occur.  Especially if you are sending large quantities of voice data on that link.

I would reccomend upgrading the IOS as well.  At least to a 12.2 revision.
Also if you can, you could upgrade that interface card to a PA-FE-TX (only 1 port, but 100Mbits and full duplex)
0
 
LVL 12

Expert Comment

by:pjtemplin
ID: 18022500
Use the policy on any interface where you want COS5 packets prioritized.
0

Featured Post

Don't miss ATEN at NAB Show April 24-27!

Visit ATEN at NAB Show to learn how our "Seamlessly Entertaining" solutions deliver fast, precise video streaming without delays for the broadcasting and media environment. ATEN will showcase its 16x16 Modular Matrix Switch (VM1600) and KVM Over IP Solution (KE6900 series).

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Network setup between buildings 4 61
Sonos and 5ghz 14 51
Password recovery 2950 is Deleting configuration Why 8 40
Network bogged down - slowing down some client PCs 10 41
Meet the world's only “Transparent Cloud™” from Superb Internet Corporation. Now, you can experience firsthand a cloud platform that consistently outperforms Amazon Web Services (AWS), IBM’s Softlayer, and Microsoft’s Azure when it comes to CPU and …
For many of us, the  holiday season kindles the natural urge to give back to our friends, family members and communities. While it's easy for friends to notice the impact of such deeds, understanding the contributions of businesses and enterprises i…
Get a first impression of how PRTG looks and learn how it works.   This video is a short introduction to PRTG, as an initial overview or as a quick start for new PRTG users.
This video gives you a great overview about bandwidth monitoring with SNMP and WMI with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're looking for how to monitor bandwidth using netflow or packet s…

726 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question