bptestnetconn utility to display Preferred Network information
The bptestnetconn utility is available to administrators to test and analyze host connections. Use the preferred network option (--prefnet) to display information about the preferred network configuration along with the forward lookup information of a host on the server list.
The bptestnetconn command is described in the NetBackup Commands Reference Guide.
Figure: bptestnetconn for Server_B with no directives listed shows the bptestnetconn output when run on Server_A, for Server_B. That is, bptestnetconn is run from Server_A's perspective. Based on the directives configured on Server_A, for Server_B, bptestnetconn shows the available IP addresses on Server_B. In this example, no directives are configured on Server_A.
The following directive is added to the properties on Server_B:
In the configuration file the directive appears as follows:
PREFERRED_NETWORK = 2001:0db8:0:11c::/62 ONLY
This directive provides NetBackup with the information to filter the addresses and choose to communicate with only those that match the :11c, :11d, :11e, and :11f networks. The addresses that do not match the Only directive are prohibited, as shown in the bptestnetconn output.
See PREFERRED_NETWORK option for NetBackup servers.
Figure: bptestnetconn for Server_B with directive shows the bptestnetconn output for Server_B, given this directive.
