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. And see here for current known issues.

New Member

Qos in CME

I have a cme express in my router and now I have PC's and Ip phones in the same subnet.

Which is the better option for having voice and data in the same subnet?

Is it better to create 2 different Vlan's ?

How can I prioritize 1 Vlan over the other

Is there any example of this configuration?

Best regards

1 REPLY

Re: Qos in CME

It is a best practice to separate voice and data traffic into different vlans/subnets. You will want to congigure VLANS and QoS on your switch and create a trunk between the switch and the router. Take a look at the following link for the procedure.

http://www.cisco.com/en/US/products/sw/voicesw/ps4625/products_installation_guide_chapter09186a0080527151.html

You can then use the "auto qos voip cisco-phone" at the interface level to configure the ports on your switch. If you are running voice across the WAN from this location you will want to configure QoS on the router. The QoS SRND is a good resource for sample configs. There is a good example of prioritizing traffic based on DSCP and VLAN in the Campus QoS Design -> Catalyst 3550 -> Conditionally Trusted IP Phone section.

QoS SRND

http://www.cisco.com/application/pdf/en/us/guest/netsol/ns432/c649/ccmigration_09186a008049b062.pdf

Hope this helps. If so, please rate the post.

Brandon

654
Views
3
Helpful
1
Replies
CreatePlease login to create content