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

Auto Qos on 4506 VSS

Switch is 4506-E with WS-X45-SUP7-E  supervisor  running VSS     

Switch is running cat4500e-universalk9.SPA.03.04.02.SG.151-2.SG2.bin

We have Video conf units connected to the 4506 via 3750X access switches (4 x TenGig etherchannel) , and WAN routers connected direct via single Gig interfaces.

I want to trust DSCP values from VC units on the 3750 switches through the 4506 to the WAN routers and onto teh WAN.

I have configured auto qos voip trust on the gig interfaces from the WAN routers, the following config is applied:

interface GigabitEthernet1/6/1
auto qos trust

service-policy input AutoQos-4.0-Input-Policy
service-policy output AutoQos-4.0-Output-Policy

TRAFFIC INBOUND to 4506 from WAN:

I can see that traffic is matching dscp 34 (AF41) from the WAN router (inbound to the 4506) but no traffic matching dscp 34 coming from the 4506

TRAFFIC INBOUND to 4506 from 3750 wher VC unit is connected:

I can see traffic coming in from 3750 matching dscp 34 (AF41)

The problem is i do not see this traffic retaining is packet marking going through the switch and out ... so WAN to 4506 is ok then 4506 to 3750 is not being marked, and 3750 to 4506 is OK and 4506 to WAN router is not being marked.

The auto qos configuration options for gigabit interfaces do not appear to be available on the Ten gig interfaces , so im not sure if there are any differences with trusting packet markings on the ten gig interfaces ??

Any help appreciated.

Thanks,

Dave.

176
Views
0
Helpful
0
Replies
CreatePlease login to create content