Technical Note: NCM communication issues with systems across WAN

[cmaheu]

Description
In a multiple appliance system with a Network Control Manager (NCM), communication issues can occur between the Control Manager and the managed appliances over a WAN link.

Symptoms include but are not limited to:

• Hosts incorrectly failing scans if Endpoint Compliance Policy was modified and resync performed during their scan.
• Connection between appliance and Control manager hanging.
• Control Manager /bsc/logs/output.mom logs contain CORBA COMM_FAILURE messages with "java.net.SocketException: Connection reset" and "java.net.ConnectException: Connection timed out" errors.

Scope
Version: 8.x, 9.x

Solution
Workaround:  If host incorrectly failed due to a policy modification and resync during scan, rescan the host.

Solution:  Currently under investigation. 

ID 0686910

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