Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. If you'd prefer to explore, try our test area to get started. And see here for current known issues.

New Member

Setup QoS between phone servers over P2P

I've got a digital phone system but it goes VoIP across our P2P T1's. I am having quality issues between our 2 sites only and have decided to setup QoS on the Cisco 1841 P2P routers. Since it is only 1 phone server on each side that does the voice traffic, I would like to do QoS by IP address, instead of by protocol. So if I understand correctly, I will need an access-list, a class-map and a policy-map and need to point the interface to the policy-map. I'm drafting a config but have hit a few mental bumps in the road so can anybody give me an example config based on best practices? Thanks!

2 REPLIES
New Member

Setup QoS between phone servers over P2P

Okay, so how about this?:

ip access-list extended voip-qos

remark Phone Server QoS

permit host 1.1.1.1

class-map match-all voip

match access-group name voip-qos

policy-map qos

class voip

priority percent 80

class class-default

fair queue

int fa0/0

bandwidth 1544

bandwidth receive 1544

service-policy output qos

How does this look? Anybody have anything to add/corrections? Do you recommend bandwidth or priority as the appropriate method?

New Member

Setup QoS between phone servers over P2P

Ended up using this, which seems to have resolved it...

ip access-list extended voip-qos

remark This is for Site A and should be reversed for site B

remark These are the IP addresses of the phone servers

permit ip host 1.1.1.1 host 2.2.2.2

class-map match-all voip

match access-group name voip-qos

policy-map qos

class voip

priority percent 75

class class-default

fair-queue

int ser0/0/0

service-policy output qos

210
Views
0
Helpful
2
Replies