Visara CNA-8000 Planning Guide - Manual (Page 45)

CNA-8000 Migration and Planning Guide
707156-002 5-7
Other Transition Considerations
During the testing and transition phase, if the same VTAM names are being used, it will
be necessary to take down major nodes containing names that will be duplicated by the
new major nodes that are being activated. Use of different VTAM names may be a
preferred transition strategy.
Testing of the new CNA-8000 prior to retirement of the 1174 will require that different
network addresses be used whenever both platforms are active at the same time. This
may require setting up some temporary clients to use a different host IP address than the
production clients, or reconfiguring of some of the production clients to connect to an IP
address on the new CNA-8000 test lines. If the CNA-8000 is physically located near the
1174(s) that it is replacing, it may be desirable to use the same network cables to connect
the interfaces using the same IP address to insure that only one interface with a particular
IP address is connected at a given time.
Once initial testing of clients with the CNA-8000 has been achieved, it should be possible
to move clients over, one network adapter at a time until the CNA-8000 is handling all of
the traffic.