Visara CNA-8000 Planning Guide - Manual (Page 58)

Appendix A. Frequently Asked Questions
A-4 707156-002
Q: If a CISCO CIP is replaced by the CNA-8000, what changes will I need to make
in the host gen and on the TN3270E client workstations?
A: In many cases, no changes whatsoever are required.
Q:
If a 3174 or 1174 Gateway controller is being replaced by a CNA-8000, what host
gen or remote platform changes are required?
A: The CNA-8000 handles the ESCON interface differently than the 3174/1174
gateway. Those older products use a Local Channel PU definition to define each
of the remote platforms. The CNA-8000 uses an XCA definition to connect the
remote platforms to Switched PU definitions in VTAM. This means that the Local
Channel PU definitions will have to be converted to Switched definitions and at
least one XCA definition will have to be created. The advantage to making this
conversion however is to reduce the number of channel addresses in use.
Switched PU definitions also may open up additional redundant path options.