GENERAL ERROR: Network Protocol Error 39

Article:TECH52616  |  Created: 2007-01-11  |  Updated: 2008-01-11  |  Article URL
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Technical Solution




GENERAL ERROR: Network Protocol Error 39


Network Protocol Error 39 -  any NBU task that requires any master\media server communication can result in this error.

One possible root cause of this error is the existence of unresolvable server names in the <install_path>\VERITAS\NetBackup\Remote_Versions directory.  Any master to media server communication will spawn a named server entry in this directory.  Decommissioned media server names may still exist in this directory.
This directory is designed for version checking between media servers.

Log Files:
Various NetBackup log files may capture the Network Protocol Error 39, including:
<install_path>\Veritas\NetBackup\logs\nbconsole log

Deleting the entire contents of the <install_path>\VERITAS\NetBackup\Remote_Versions directory (without deleting the directory itself) on the master server and all media servers is the resolution to this issue. Veritas NetBackup (tm) will repopulate this folder with the correct entries anytime a connection is made between the master and a media server.
Because the master server will try to verify the host names of all entries contained in this file, the Network Protocol Error 39 can post for Remote_Version entries that the master cannot resolve.
In NetBackup 6.0 the master server uses this directory to verify the version of the media server.  A connection is made to the media server either using vnetd or vmd depending on the NetBackup version found.  

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