EMM-E6 Ethernet User's Guide

CHAPTER 14: TROUBLESHOOTING
14-6 EMM-E6 User’s Guide
A port on a
MIM
managed by
the EMM-E6
cannot
access the
network,
while other
ports on the
same MIM
are able to
access.
The port is either off or
segmented.
Port cable is
defective.
Enable the port via local or remote
management.
Try connecting the port with a
different cable.
User
parameters
(IP address,
Device and
Module
name, etc.)
are lost
when device
is powered
down.
Switch 7 has been
toggled and user-
entered parameters
have been reset to
factory default.
NVRAM may be
defective.
See Chapter 3 for information on
the NVRAM switch setting.
If NVRAM is defective, call
Cabletron Technical Support.
No power to
an external
transceiver
connected to
an EPIM-A.
EPIM is defective.
AUI cable is defective.
Replace EPIM.
Replace AUI cable.
High number
of collisions
on EPIM port.
External transceiver
has SQE enabled.
Disable SQE.
Port(s) go
into standby
for no
apparent
reason.
Configurations where
devices connected
across EMM-E6
channels can cause
the EMM-E6 to detect
a looped condition.
Discuss these configurations with
Cabletron Technical Support
before implementing them into
your network.
Table 14-2. Troubleshooting Checklist (Continued)
Problem Possible Causes
Recommended
Action
CH1Book Page 6 Wednesday, March 20, 1996 7:48 AM