Cabletron Systems EMME User Manual page 105

Table 7-1. Troubleshooting Checklist (Continued)
Problem
A port on a MIM
managed by the
EMME cannot
access the network,
while other ports on
the same MIM are
able to.
User parameters (IP
address, Device and
Module name, etc.)
are lost when device
is powered down.
No power to an
external transceiver
connected to the AUI
port.
High number of
collisions on AUI port.
Port(s) go into
standby for no
apparent reason.
EMME USER'S GUIDE
TROUBLESHOOTING CHECKLIST
Possible Causes
The port is either off
or segmented.
Port cable is
defective.
Switch 7 has been
toggled and user-
entered parameters
have been reset to
factory default.
NVRAM may be
defective.
Fuse for that AUI port
(F1/F2) is blown.
AUI cable is
defective.
External transceiver
has SQE enabled.
Configurations
where device
connection across
EMME channels can
cause the EMME to
detect a looped
condition.
Recommended
Action
Enable the port via
local or remote
management.
Try connecting the
port with a different
cable.
See Chapter 3 for
information on the
NVRAM switch
setting.
If NVRAM is
defective, call
Cabletron Technical
Support.
Replace fuse (F1 for
AUI1 or F2 for AUI2).
Replace AUI cable.
Disable SQE.
Discuss these
configurations with
Cabletron Tech
Support before
implementing them
into your network.
Page 7-5