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"match protocol sip" has no any match with Polycom HDX SIP Session

wang-jifeng
Beginner
Beginner

I am working on QoS for Polycom HDX video device。

Found some strange with command "match protocol sip"

Config is following:

class-map match-any cm-prec-3-in

match access-group name acl-prec-3

match protocol sip   !--->try to catch the sip traffic

match protocol rtcp

match  dscp cs3

Router#sh policy-map interface vlan 300  input class cm-prec-3-in

Vlan300

   Service-policy input: pm-classify-in

     Class-map: cm-prec-3-in (match-any)

      789 packets, 294892 bytes

      5 minute offered rate 0 bps, drop rate 0 bps

      Match: access-group name acl-prec-3

        753 packets, 290572 bytes

        5 minute rate 0 bps

     Match: protocol sip  !---> no any sip traffic is matched

        0 packets, 0 bytes

        5 minute rate 0 bps

     Match: protocol rtcp !---> RTCP catched

        36 packets, 4320 bytes

        5 minute rate 0 bps

      Match:  dscp cs3 (24)

        0 packets, 0 bytes

        5 minute rate 0 bps

      QoS Set

        precedence 3

          Packets marked 789

try to show the nbar version:

sh ip nbar version:                                      

27  sip                  Mv: 2

      Iv:                cisco-phone - 1

      Iv:                telepresence-control - 1

42  cisco-phone          Mv: 1

      Iv:                  sip - 2

Dose that mean this command "match protocol sip" is only supported for Cisco device?

Try to use ACL to match udp port 5060 for the QoS, and it is working.

Try to use comster "ip nbar custom" to re-write the nbar and it is doesn't accept.

Please help to clarify how to use this command.

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