System information

AS/400 IBM Network Station: Techniques for Deployment in a WAN

• Release 3 boots about as fast as previous releases, even though more

data and function are sent. Much of the data sent is compressed.

• Switches, routers and gateways can cause problems. Ensure your

Network Administrator is involved in the implementation.

• For 6180 twinax attached Network Stations, best performance is obtained

if all Express Datastream enabled devices are on the same cable,

excluding older, non-Express capable devices.

• When Express devices are attached to a single workstation controller, best

performance is obtained by load balancing those devices. That is, half the

devices should be connected to cable ports 0 through 3, and the other half

should be connected to ports 4 through 7.

5250 Application Performance on the AS/400 System

This section provides the 5250 application performance conclusions for the

Network Servers:

• In general, the 100, 300 and 1000 all perform equally.

• Migrating from LAN attached SNA Client/Access PCs will probably use

more CPU (about 17%) to run the same 5250 applications.

• LAN attached TCP/IP Client/Access PCs will use about the same CPU as

IBM Network Stations when running the same 5250 applications.

• Local twinax attached NPTs to IBM Network Stations migration will

probably use more CPU (about 27%) to run the same 5250 applications.

Browsers

This section provides the browser conclusions for the Network Servers:

• In general, the 100, 300 and 1000 all perform equally.

• Poor performance is obtained when both socks and proxy are configured.

Only one should be used.

• Never use disk caching.

Java Virtual Machine

This section provides the Java Virtual Machine conclusions for the Network

Servers:

• The Series 100 should not be used for Java.

• The Series 300 can be used for limited, lightweight Java.

• The Series 1000 is for Java; however, since Java hasn't fully matured and

can be used for many, varied applications, customers should insure that

their Java application and the 1000 are compatible.