[cisco-voip] QoS on Cisco 2621

[David Edwards]

We are using a 3Com NBX and the conneXions software (h.323 gateway). I have
configured QoS as shown below for RTP, but would like to use the ToS portion
available for the NBX phones to work at remote sites.  I would prefer not to
prioritize all RTP, but only H.323 and COS or TOS voice porions only.

The config works great so far for H.323, but does not work for the phones
connecting to a remote PBX.  We ran several tests with full bandwidth on the
s0/1 and had perfect call quality, so this portion works for H.323.

Configuration on 2621

ip cef
class-map VOICE
 match protocol rtp
 exit
policy-map QOS-RTP
 class VOICE
 priority percent 50
 exit
interface serial 0/0
 service-policy output QOS-RTP
interface serial 0/1
 service-policy output QOS-RTP


Router output for  S0/1, which is a 256k link
sh policy int s0/1

 Serial0/1

  Service-policy output: QOS-RTP

    Class-map: VOICE (match-all)
      8167 packets, 1926573 bytes
      5 minute offered rate 48000 bps, drop rate 0 bps
      Match: protocol rtp
      Weighted Fair Queueing
        Strict Priority
        Output Queue: Conversation 72
        Bandwidth 50 (%)
        Bandwidth 128 (kbps) Burst 3200 (Bytes)
        (pkts matched/bytes matched) 53073/12529282
        (total drops/bytes drops) 0/0

    Class-map: class-default (match-any)
      1040458 packets, 433547443 bytes
      5 minute offered rate 197000 bps, drop rate 0 bps
      Match: any


Any help would be appreciated.

Regards,

David