Performance considerations for AnyNet communications

AnyNet® communications is a good performance factor for you to consider. AnyNet is more expensive to use than any of the i5/OS protocols because you spend twice as much to run two protocols.

To optimize AnyNet performance, consider the following:

For send and receive pairs, the most efficient use of an interface is with its own protocol stack. That is, intersystem communications function (ICF) and common programming interface communications (CPI Communications) perform the best with Advanced Program-to-Program Communication (APPC). There is additional CPU time when the crossover between the protocols processes.
Each communications interface performs differently depending on the scenario. ICF and CPI Communications perform the best with APPC.

Note: An alternative to AnyNet communications is to have SNA and TCP/IP running parallel or over the same lines in your network. Hence, performance implications can be surpassed by not using AnyNet.