Information Technology Reference
In-Depth Information
Preventing AppleTalk Problems
Table 9-1 lists suggestions to help you avoid problems when configuring a router for AppleTalk.
Table9-1
AppleTalk Problem-Prevention Techniques
Preventive Action
Description
Every router
connected to a
network must
agree on the
configuration of
that network
Every router on an AppleTalk network (that is, on a single cable
segment) must agree on the configuration of the network.
Therefore, network numbers, cable ranges, timer values, zone
names, and other parameters should be the same for every router
on the segment.
Every network
number in an
internetwork must
be unique
Network numbers must be unique throughout the entire
AppleTalk network. Duplicate network numbers can cause
connectivity- and performance-related problems.
Upgrade to
AppleTalk
Phase 2 wherever
possible
To minimize interoperability problems, upgrade all router
Ethernet interfaces to Phase 2. Phase 1/Phase 2 networks can be
problematic, as can nonextended AppleTalk networks.
When you change
a router or
interface
configuration,
enable the
debug apple erro
r privileged exec
command to log
errors
The
debug apple error privileged exec
command tracks the
progress and status of changes in the internetwork and alerts you
to any errors. You can also run this command periodically when
you suspect network problems. In a stable network, this
command returns no output.
You can establish a
syslog server
at your site and add the
configuration command
appletalk event-logging
to the router.
This keeps a running log, with timestamps, of significant events
on your network.
Disable this command with the
no debug apple error
command
when you have completed diagnostic activities.
