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MQC IP RTP Header compression

Hello!

My 7206 is configured as follows (only essential lines given):

interface Serial5/1:0

ip address x.x.x.x 255.255.255.252

encapsulation ppp

ip route-cache flow

max-reserved-bandwidth 95

service-policy output policy1

policy-map policy1

class cm-VOICE

priority 512

compress header ip rtp

class class-default

fair-queue

random-detect

compress header ip tcp

c7206.1#sh policy-map int se 5/1:0 out class cm-VOICE

Serial5/1:0

Service-policy output: policy1

Class-map: cm-VOICE (match-any)

993857 packets, 146395791 bytes

5 minute offered rate 105000 bps, drop rate 0 bps

Match: ip dscp ef (46)

970530 packets, 144702909 bytes

5 minute rate 105000 bps

Match: ip rtp 16384 16383

23327 packets, 1692882 bytes

5 minute rate 0 bps

Queueing

Strict Priority

Output Queue: Conversation 264

Bandwidth 512 (kbps) Burst 12800 (Bytes)

(pkts matched/bytes matched) 246067/37464929

(total drops/bytes drops) 0/0

compress:

header ip rtp

UDP/RTP (compression off, IPHC, NON TCP)

Sent: 0 total, 0 compressed,

0 bytes saved, 0 bytes sent

rate 0 bps

I can see here that compression is OFF, and no headers are compressed. Why?

Thanks in advance!

1 REPLY

Re: MQC IP RTP Header compression

Make sure that cRTP is configured on the other end of the link as well.

Brandon

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