Tek-Tips is the largest IT community on the Internet today!
Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!
-
Congratulations Mike Lewis on being selected by the Tek-Tips community for having the most helpful posts in the forums last week. Way to Go!
3550, prioritize traffic based on cos value?
- Thread starter dodeesos
- Start date
You need to enable QoS, trust CoS on your ports, enable egress priority queuing on your ports and map CoS 5 to the priority queue:
I assume you are running Voice VLANs or trunks as CoS will only appear in packets that are tagged. There is a lot more to QoS, however what you asked is answered above.
HTH
Andy
Code:
mls qos ! enables QoS
!
interface FastEthernet0/1
mls qos trust cos ! trusts received CoS values
priority-queue out ! enables Q4 to operate as strict priority
wrr-queue cos-map 4 5 ! maps CoS 5 to Q4
!I assume you are running Voice VLANs or trunks as CoS will only appear in packets that are tagged. There is a lot more to QoS, however what you asked is answered above.
HTH
Andy
- Status
Similar threads
