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Cisco Bug: CSCup21159 - dns queries intermittently result in Server Connection Broken

Last Modified

Dec 25, 2016

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

15.0(1)

Description (partial)

During call set up, OS attempts dns query for naptr and/or aaaa. occasionally fail with

[vpn 5455 debug] [1/0/4903 <vpnmgr:2> vpnmgr_func.c:5426] [software internal system syslog] Server Connection Broken: Id: X:X:X:X:X::X, Index: 1

Symptom:
During call set up, dns query for naptr and/or aaaa failed due to broken DNS-connection with the Server.

Conditions:
This issue seen when DNS-TCP connection handshake is not successful.
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