Cabletron Systems EMM-E6 Ethernet manual EMM-E6 User’s Guide

CHAPTER 14: TROUBLESHOOTING

Table 14-2. Troubleshooting Checklist (Continued)

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

14-6 EMM-E6 User’s Guide