Compatibility with back-level hosts
NetBackup 8.1 and later versions use a minimum set of TCP ports, primarily VERITAS_PBX (1556) and VNETD (13724) ports.
When connecting to legacy daemons on remote hosts, NetBackup 8.1 and newer servers first attempt to connect to VERITAS_PBX. If unsuccessful, the connection is retried to VNETD.
If connections are being made to an unexpected destination port, it is likely that a problem in networking, operating systems, or applications is preventing consistent connections to the default ports. To fix the problem, check the following:
Use the operating system commands (netstat, pfiles, lsof, process monitor) to make sure that the expected processes are running and listening for connections.
Use the bpclntcmd, bptestbpcd and bptestnetconn commands to check connectivity to NetBackup hosts of any version.
The bptestbpcd command resides only on NetBackup servers.
The bpclntcmd and the bptestnetconn commands reside on both NetBackup servers and clients.
The bpclntcmd -pn can be used to check connectivity from a client to the master server.