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Cisco Bug: CSCut55109 - CAP: VCS takes extensive time failing through DNS SRV records

Last Modified

Feb 21, 2018

Products (3)

  • Cisco TelePresence Video Communication Server (VCS)
  • Cisco TelePresence Video Communication Server Model
  • Cisco Expressway

Known Affected Releases


Description (partial)

VCS takes extensive time for call to failover to lower priority destination through DNS SRV base call
Call go through B2BUA and DNS SRV query response contain multiple entries.
Each destination, VCS attempt TCP connection (and timeout in 10 sec.) and retry same number of entries in DNS query response.
Continue to establish the session following the call destination priority order till find destination peer.
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