Apple System 7 Pro - Manual (Page 17)

Upgrades are available through dealers for most programs that predate System
7. Order these early in your planning process, so you can have the compatible
versions at hand when users upgrade.
Network compatibility
When upgrading system software on networked computers, you need to consider
three aspects of your AppleTalk network:
- AppleTalk software and driver versions
- internet routers (if you have multiple, interconnected networks)
- network services, such as file servers and mail software
AppleTalk Phase 2 software and network drivers
AppleTalk Phase 2 is an extension of the original AppleTalk network protocols
that supports larger internets with many more devices per network and allows
more efficient routing and zone management.
The AppleTalk software installed with System 7 Pro is intended for use on
AppleTalk Phase 2 networks. Apple recommends upgrading all AppleTalk networks
to Phase 2, which has been the AppleTalk standard since 1989.
Depending on the AppleTalk network type(s) in your organization, you may need
to upgrade to AppleTalk Phase 2 before installing System 7 Pro.
Network type What to do
LocalTalk No action is necessary.
TokenTalk No action is necessary.
EtherTalk Upgrade if using any version earlier than 2.0.
Non-Apple Check with dealer or manufacturer.
The following sections describe the effect, for each AppleTalk network type,
of upgrading to System 7 from System 6.
If you are upgrading from version 7.0 or 7.1, you do not need to upgrade your
network.
LocalTalk networks
If your network uses only LocalTalk connections, upgrading some computers to
System 7 Pro will have no effect on networking.
Although the new LocalTalk driver installed with System 7 Pro is an AppleTalk
Phase 2 driver, the protocol changes in Phase 2 do not prevent communication
between Phase 1 and Phase 2 users on a LocalTalk network.
TokenTalk networks
If your network contains TokenTalk connections, these computers are already
System 7.