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Cisco Bug: CSCut29519 - 99XX does not use TTL parameter for backup DNS server

Last Modified

Aug 04, 2015

Products (1)

  • Cisco Unified IP Phones 9900 Series

Known Affected Releases

9.4(3.1)

Description (partial)

Symptom:
9951 does not use TTL parameter if responses are from 'backup DNS server elected'. Causing delay in DNS server failover.

Conditions:
9951 with 2 DNS servers, primary goes down and  failover to backup DNS server takes up to 8 seconds
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