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Cisco Bug: CSCuk60363 - ecrtp doesnt recover if N+1 frames dropped

Last Modified

Jan 31, 2017

Products (2)

  • Cisco IOS
  • Cisco Prime Collaboration Provisioning 12.4

Known Affected Releases

12.3(11)T12 12.4 12.4(10.8)PI7i 12.4(11)T2 12.4(2)T6 12.4(5c) 12.4(6)T6 12.4(7f) 12.4(9)T5 12.4M 12.4T

Description (partial)

Symptoms: When Enhanced Compressed Real-Time Transport Protocol (ECRTP) is 
configured and when multiple packet drops occur, cRTP packets may stop being 
sent, and only cUDP packets are sent instead. Because cUDP packets are nearly as 
large as uncompressed packets, compression becomes completely inefficient.

Conditions: This symptom is observed on a Cisco router when ECRTP is 
configured on an interface and when a few packet drops occur, as in the 
following configuration example:

interface Serial2/0
ip address x.x.x.x x.x.x.x
ip rtp header-compression ietf
ip header-compression recoverable-loss 1
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  • Status
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