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How to make cRTP test.

Publication Date:  2012-07-27 Views:  30 Downloads:  0
Issue Description
Need to make test of IP Header compression PC1<->AR2880_A<->AR2880_B<->PC2. Target is to reduce traffic.
      
Alarm Information
No cRTP statistic, IPHC don't work.
Handling Process
After finished all configuration right, ip connection is working (ping interface successfully), but cRTP don't work. 
[interface-serial X/X/X:X]shutdown
[interface-serial X/X/X:X]undo shutdown
after you will do like this, you can check that cRTP statistic is now working and Voice traffic is start compressing:
IPHC: RTP/UDP/IP header compression
  Interface: Serial4/0/3:0
    Received:
      Compress/Error/Discard/Total: 13599/0/0/13772 (Packets)
    Sent:
      Compress/Total: 6620/6796 (Packets)
      Send/Save/Total: 188532/249960/438492 (Bytes)
      Total(Bytes)/Send(Bytes): 2.32 
    Connect:
      Rx/Tx: 16/16
      Long-search/Miss: 38/163
      Hit-Ratio: 97%
      Five-Minute-Miss-Ratio: 74 (Misses/5Mins)
      Max-Miss-Ratio: 80
      
Root Cause
Need to execute additional action.
      
Suggestions
For test is better use Netmeeting or Huawei VP8020 terminals with H.325 protocol.
Quality of voice in other free software may be not good.

END