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Cisco Bug: CSCuo77421 - IPDR stops sending data and queuedUnacknowledged becomes stuck

Last Modified

Mar 24, 2019

Products (1)

  • Cisco uBR10000 Series Universal Broadband Routers

Known Affected Releases

12.2(33)SCH1

Description (partial)

Symptom:
IPDR stops sending new records to the collector. The queuedUnacknowledged count will be stuck at a non-zero value.
show IPDR EXPO process show it is stucked.

monmn001cm9#sh proc events 382
Load for five secs: 34%/2%; one minute: 38%; five minutes: 37%
Time source is NTP, 00:04:09.842 CDT Tue May 13 2014


Process 382: IPDR_EXP_PROC, state: Waiting for Event
  ---
  Watching queue 'IPDR Exporter Queue' (0xF70025A8), id 0x0, count 699.
  Watching managed timer at address 0xFBB6B338.  Expires in 00:00:00.

Conditions:
Some network enviroment , may cause TCP initial three way handshake in  following sequence.
Client-----------------------SYN->>>>------------------------------Server
Client----------------<<<<SY N+ACK-------------------------------Server
Client----------------------ACK+RST->>>>>------------------------------Server
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