SIP Proxy: Internal DNS SRV cache overflow condition Monitor

  • ID:  Microsoft.LS.2015.Monitoring.UnitMonitor.TimerResetEvent.AccessEdge.SIPPROXY_EVENT_DNS_SRV_CACHE_OVERFLOW
  • Description:  SIP Proxy: Internal DNS SRV cache overflow condition
  • Target:  Access Edge Component
  • Enabled:  Yes

Operational States

Name State Description
Success state for Monitor 'SIP Proxy: Internal DNS SRV cache overflow condition' Success  
Error state for Monitor 'SIP Proxy: Internal DNS SRV cache overflow condition' Error  

Alert Details

Monitor State Message Priority Severity Auto Resolution
Error state for Monitor 'SIP Proxy: Internal DNS SRV cache overflow condition' (Error) [Skype] Internal DNS SRV cache overflow condition. Medium Critical Yes

Run As Profiles

Name
Default

Monitor Knowledgebase

Summary

Internal DNS SRV cache overflow condition.

Causes

The SIP protocol stack in the Access Edge Server retains an in-memory cache of DNS query results in order to reduce the amount of network traffic generated by DNS SRV queries against tenant and federated partner domains. The cache might overflow if the Access Edge Server interacts with many federated partners, or in a service deployment that hosts many tenant domains. Frequent overflow can lead to serious deterioration of the local network.

Resolutions

Consider increasing the size of the DNS cache using the "DnsCacheRecordCount" setting in the configuration.

External References
This monitor does not contain any external references.

See Also for Lync Server 2015 Monitoring Management Pack


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