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

VOIP traffic prioritization

Hi all.  I have a new VOIP implementation using 2960 switches.

I want to prioritize voice traffic.

After creating VLAN 2 I did the following:

Per Cisco, I did the following on my uplink ports:

switchport trunk allowed vlan 1,2

switchport mode trunk

switchport nonegotiate

priority-queue out

mls qos trust cos

switchport trunk allowed vlan 1,2

switchport mode trunk

switchport nonegotiate

priority-queue out

mls qos trust cos

spanning-tree portfast trunk

spanning-tree bpduguard enable

On my ports where a VOIP phone was plugged in, I did the following:

switchport trunk allowed vlan 1,2
switchport mode trunk
switchport nonegotiate
priority-queue out
mls qos trust cos
spanning-tree portfast trunk
spanning-tree bpduguard enable

How can I verify that my voice traffic is being prioritized?

  • LAN Switching and Routing
5 REPLIES

VOIP traffic prioritization

I think you should read the below link:-

http://www.cisco.com/univercd/cc/td/doc/solution/esm/qossrnd.pdf

HTH>

New Member

VOIP traffic prioritization

I forgot to add that I am only using VOIP on the LAN.

VIP Super Bronze

VOIP traffic prioritization

Are you using Cisco phones?

New Member

VOIP traffic prioritization

No.  We are using Non-Cisco phones.

VIP Super Bronze

VOIP traffic prioritization

Ok, I would recommend reading this document before deploying VoIP.  The first section provides a great amount of details of interaction between the phone and the switch.  It is intended for Cisco phones, but the QOS parameters provided by other vendors's phone should be the same.

http://www.cisco.com/en/US/docs/solutions/Enterprise/WAN_and_MAN/QoS_SRND_40/QoSCampus_40.html

HTH

1056
Views
0
Helpful
5
Replies
This widget could not be displayed.