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Cisco Bug: CSCuo47620 - ASR1k - Session Churn under Scale leads to %CPPDRV-4-ADRSPC_LIMIT: F1:

Last Modified

Apr 19, 2019

Products (1)

  • Cisco ASR 1000 Series Aggregation Services Routers

Known Affected Releases

15.2(4)S 15.3(3)S2

Description (partial)

Symptom:
Memory is leaked during session tear down. The following error message is logged to the console after the address space limit is exceeded.
  
on standby-ESP:
 %CPPDRV-4-ADRSPC_LIMIT: F1: cpp_cp:  Address space limit

Conditions:
When a policy with conditional policing enabled is removed, the traffic manager leaks 16 bytes of resource DRAM per target. The leak increases exponentially when tearing down more than 20000 PPP sessions. Though the system may still be operation, the control plane performance becomes severely degraded causing subsequent configuration processing to become very slow.
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