Network buffer size in relation to other parameters
The network buffer size parameter is the counterpart on the media server to the communications buffer size parameter on the client. The network buffer sizes need not be the same on all of your NetBackup systems for NetBackup to function properly. However, if the media server's network buffer size is the same as the client's communications buffer size, network throughput may improve.
Similarly, the network buffer size does not have a direct relationship to the NetBackup data buffer size.
The two buffers are separately tunable parameters. However, setting the network buffer size to a substantially larger value than the data buffer has achieved the best performance in many NetBackup installations.
More Information