User guide

Internetworking Primer A-35
Desktop Protocols
In order to configure AppleTalk correctly, all AppleTalk access server or router interfaces
on a data link must agree on the assigned cable range, default zone, and any additional
zones. If there are any conflicts when a new router or access server using AppleTalk
attempts to connect to the network, the interface will not enable AppleTalk and will report
a port configuration mismatch. Enter the EXEC command show apple interface to confirm
correct startup.
Zones should be named for ease of use. Zone names are logical and do not need to be
unique, allowing logical groupings of users across diverse geographic locations. Because
WAN links offer no AppleTalk services, you should name them to appear at the bottom of
the Macintosh Chooser with a name such as “ZZ Serial.”
For example, in Figure A-13, the following zone name assignments are used:
Using the zone name assignments above will cause each access server or router in the
AppleTalk internetwork to build a zone information table that looks like this:
cable-range default zone additional zones
100–100 Field Service Sales
1001–1002 Marketing Sales
2001–2002 Marketing
3001–3002 Backbone
10–10 ZZ Serial
20–20 ZZ Serial
Marketing 1001–1002 2001–2002
Sales 1001–1002 100–100
Backbone 3001–3002
Field Service 100-100
ZZ Serial 10–10 20–20