Hello:
I want to compress rtp headers. The policy map is catching traffic becouse I
can see class-map "med" packets growing, but the problem I have is that med
class is not classifing this traffic as rtp, so I guess this is way rtp
compression is not working
This situattion is very strange becouse the class-map is matching rtp or rtcp
(match any) so one of the two protocol counters should grow like the class-map
counter (see output)
Could this be a bug? Any suggestions?
I've the following class map and policy map:
class-map match-any med
match protocol rtp
match protocol rtcp
class-map match-any sig
match protocol h323
match protocol mgcp
match protocol rsvp
match protocol sip
match protocol skinny
!
!
policy-map voice
class med
priority 52
compress head ip rtp
class sig
bandwidth 16
class class-default
fair-queue
policy-map shapping
class class-default
shape average 384000 3840
service-policy voice
show policy-map interface serial 0/2/0.102
HQ#sh policy-map interface seri 0/2/0.102
Serial0/2/0.102: DLCI 102 -
Service-policy output: shapping
Class-map: class-default (match-any)
10855 packets, 682844 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 10855/682844
shape (average) cir 384000, bc 3840, be 3840
target shape rate 384000
lower bound cir 0, adapt to fecn 0
Service-policy : voice
queue stats for all priority classes:
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 6725/430332
Class-map: med (match-any)
6725 packets, 430332 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: protocol rtp
0 packets, 0 bytes
5 minute rate 0 bps
Match: protocol rtcp
0 packets, 0 bytes
5 minute rate 0 bps
Priority: 52 kbps, burst bytes 1500, b/w exceed drops: 0
compress:
header ip rtp
UDP/RTP (compression on, Cisco, RTP)
Sent: 0 total, 0 compressed,
0 bytes saved, 0 bytes sent
rate 0 bps
Class-map: sig (match-any)
158 packets, 13676 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: protocol h323
0 packets, 0 bytes
5 minute rate 0 bps
Match: protocol mgcp
0 packets, 0 bytes
5 minute rate 0 bps
Match: protocol rsvp
0 packets, 0 bytes
5 minute rate 0 bps
Match: protocol sip
0 packets, 0 bytes
5 minute rate 0 bps
Match: protocol skinny
158 packets, 13676 bytes
5 minute rate 0 bps
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops) 0/0/0
(pkts output/bytes output) 158/13676
bandwidth 16 kbps
Class-map: class-default (match-any)
3972 packets, 238836 bytes
5 minute offered rate 0 bps, drop rate 0 bps
Match: any
Queueing
queue limit 64 packets
(queue depth/total drops/no-buffer drops/flowdrops) 0/0/0/0
(pkts output/bytes output) 3972/238836
Fair-queue: per-flow queue limit 16
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