Cabletron Systems STHI User Manual

Page of 77
The Reset Button
Page 4-3
Management Failure
4
If the MGMT LED is red, try resetting the STHI. If this does not resolve the 
problem, contact Cabletron Systems Tech Support. Meanwhile, the STHI 
will continue to operate, but will not provide Beacon Recovery or 
statistical monitoring.
4.3 The Reset Button
The STHI incorporates a recessed Reset button (see Figure 4-1). Pressing 
this button causes the STHI to clear all counters, run all startup 
diagnostics, and reload the flash resident firmware into the CPU local 
memory. It does NOT initialize Non-Volatile Random Access Memory 
(NVRAM), the battery-backed random access memory where the STHI 
stores network management parameters. (See also Section 4.4, NVRAM 
Reset Switch
.)
Figure 4-1.  Reset Button
Management services will be suspended during the reset 
process.
LANVIEW
®
SUPPORTING 100 OHM UTP CABLE
HubSTACK
STHI-24
TOKEN RING HUB
WITH
RESET
CPU
ACT
MGMT
16 Mb/s
SPEED
16M
4M
COM 
RO 
Reset Button
NOTE