Information Technology Reference
In-Depth Information
Table9-6
AppleTalk: Network Services Intermittently Unavailable (continued)
Possible Problems
Solution
ZIP storm
(continued)
Use the
debug apple zip privileged exec
command to identify
the network for which the zone is being requested by
neighboring routers. You can also use the
show apple private
exec
command to check the number of pending ZIP requests.
3.
Identify the router that injected the network number into
the internetwork (and that is causing the excessive ZIP
traffic). The
show appletalk traffic
and
show appletalk route exec
commands provide
information that can help you find the suspect router.
For example, you can use the
show appletalk route exec
command to view the AppleTalk routing table. Check whether
a network shows up in the routing table, even though the display
indicates that no zone is set.
If you find a network for which no zone is set, a node on that
network is probably not responding to ZIP requests, resulting in
the ZIP storm.
4.
Determine why the node is not responding to ZIP requests.
Access lists or other filters might be the cause.
ZIP storms can also result from a defect in the software running
on the node. Contact the vendor to determine whether there is a
known problem.
AppleTalk: Old Zone Names Appear in Chooser (Phantom Zones)
Symptom:
Old AppleTalk zone names continue to appear in the Chooser. Even after zone names are
removed from the configuration, “phantom” zones continue to appear in the Chooser.
