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Priority Queue Question

I've added the following config to the ASA at one of my remote sites:

class-map Voice

match dscp ef

match tunnel-group X.X.X.X

policy-map Voice-Priority

class Voice

  priority

policy-map Traffic-Shaping

class class-default

  shape average 800000

  service-policy Voice-Priority

priority-queue outside

service-policy Traffic-Shaping interface outside

But it doesn't seem like anything is getting into the priority queue:

Interface outside:

  Service-policy: Traffic-Shaping

    Class-map: class-default

      shape (average) cir 800000, bc 3200

      (pkts output/bytes output) 388107/257765342

      (total drops/no-buffer drops) 2847/0

      Service-policy: Voice-Priority

        Class-map: Voice

          priority

          Queueing

          queue limit 64 packets

          (queue depth/total drops/no-buffer drops) 0/0/0

          (pkts output/bytes output) 0/0

        Class-map: class-default

          Default Queueing

          queue limit 64 packets

          (queue depth/total drops/no-buffer drops) 54/2847/0

          (pkts output/bytes output) 388238/257909374

It's only been a few hours or so and not too many calls are made from that site, but I wanted to be sure I was on the right track.  My fear is that the web filter device that is inline withe the ASA is stripping the tag off my voice packets.

Everyone's tags (4)
1 REPLY

Priority Queue Question

Hi Bro

Maybe the incoming voice packets into your FW isn't marked with ef. For this reason, you don't see anything at all. I hope the QOS isn't tied to a subinterface, as QOS is only supported on the main interface itself. What you're doing here is QoS Configuration based on DSCP. You could refer to this URL for troubleshooting purposes.

http://www.cisco.com/en/US/products/ps6120/products_configuration_example09186a008080dfa7.shtml#tab4

Did you marked on the Cisco Catalyst switchports, which ports are ef?

Warm regards, Ramraj Sivagnanam Sivajanam Technical Specialist/Service Delivery Manager – Managed Service Department
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