DSCP QOS CS3/24 & 46 on Cisco 3850 Switch port - VOIP

We have configured QOS on all HP Procurve LAN switches as CS3/24 & 46 priority 7 for VLAN 90 (Voice VLAN)

VLAN90 is configured on Cisco 3850 and interface on VLAN90 running to additional WAN connection for VOIP traffic.

How do I enable CS3/24 & 46 QOS on the Cisco core switch to maintain the QOS tags across to the WAN gateway (also configured for CS3/24 & 46)

Thanks.
LVL 1
BJMagillAsked:
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

x
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

kevinhsiehCommented:
DSCP tags are part of the IP packet, so they will remain with the traffic as long as some device doesn't deliberately change them.

You should have a QoS queuing policy any time you go from a higher speed interface to a lower speed one. This could be at a switch or router.
0
BJMagillAuthor Commented:
Although that does make sense do we not need to add something in the config to honour the QOS traffic based on the tags?
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Voice Over IP

From novice to tech pro — start learning today.