High Availability Synchronization Failure When Masked Virtual Server is Configured on NetScaler Appliance

High Availability synchronization failure on NetScaler appliance.

The secondary node sends a SYN packet and reset is observed in this environment.

The following error will appear:

Oct 27 12:00:01 <local0.info> NS5-Chicago nsconf: nsnet_connectremoteas: failed to connect to host 10.28.153.60Oct 27 12:00:04 <local0.alert> 10.28.153.61 10/27/2014:17:00:04 GMT NS5-Chicago 0-PPE-0 : EVENT STATECHANGE 14724 0 : Device "self node 10.28.153.61" - State "SYNC Failure - Save remote config failed"

Telnet port 3010 from secondary to primary node will fail and reset on window 8121 is observed within the network trace.

The following is a snippet from the configuration where this issue was troubleshot.

Masked virtual server:

add lb vserver vip_httpredirect_subnet HTTP -Pattern 10.28.153.0 -IPMask 255.255.255.0 80 -persistenceType NONE -cltTimeout 180

NSIPs of the High Availability pair:

set ns config -IPAddress 10.28.153.61 -netmask 255.255.255.0

set ns config -IPAddress 10.28.153.61 -netmask 255.255.255.0

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