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Cisco Bug: CSCur07554 - SIP fail over rates have dropped

Last Modified

Aug 17, 2020

Products (1)

  • Cisco Unified Communications Manager (CallManager)

Known Affected Releases

10.0(1.10000.24) 10.5(1.10000.7) 9.1(2.10000.28)

Description (partial)

Symptom:
Memory Leak caused by Registration Throttling and gSipNewRegPendingNum.  This may occur occur during SIP endpoint failover to the secondary or tertiary call processing node.

Conditions:
While failover is occurring for a large amount (7,500-10,000) SIP endpoints from their primary call processing node to secondary (ccm upgrade\service stop) it is noted that virtual memory increased due to registration throttling and was not released.  
Other symptoms related to the memory leak are seen during active failover.  They are high cpu, slow device registration, registered devices on failover unable to place/receive calls and once virtual memory is exhausted the CCM service may core dump
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