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Cisco Bug: CSCtd54338 - Failed to cRTP when number of session is increasing to 200 or over

Last Modified

Jan 24, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Symptoms: The following output from the command <CmdBold>show ip rtp
 header-compression<noCmdBold>, shows that one channelized serial interface has
 a large accumulated number of "seconds since line card sent last stats update"
 compared with another channelized serial interfaces in device with the same
 GR_SA_CORE_7613R_1#show ip rtp header-compression Serial1/2/0.1/3/1:0 
 RTP/UDP/IP header compression statistics:
   Interface Serial1/2/0.1/3/1:0 (compression on, Cisco)
   Distributed fast switched:
   10364 seconds since line card sent last stats update  
     Rcvd:    0 total, 0 compressed, 0 errors, 0 status msgs
              0 dropped, 0 buffer copies, 0 buffer failures
     Sent:    0 total, 0 compressed, 0 status msgs, 0 not predicted
              0 bytes saved, 0 bytes sent
     Connect: 16 rx slots, 16 tx slots, 
              0 misses, 0 collisions, 0 negative cache hits, 0 free contexts
 Sometimes there is also a one-way call signaling problem.
 Conditions: The symptom is observed with the following conditions: 
 - Cisco IOS Release 12.2(33)SRD3.
 - Platform: Cisco 7613 router. 
 - RP: RSP720-3CXL-GE. 
 - SIP: Cisco 7600 SIP-200. 
 This issue normally begins to show when the count of the channelized
 subinterface (number of cRTP sessions) is 200 or over.
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Bug Details Include

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