System Safeguards; Management Access - Cabletron Systems TRBMIM-T User Manual

Token ring bridge/management module

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The Power Up Diagnostic screen displays information about the

system-initialization process you can view from the management terminal

during the power-up or reset cycle. You can use the Power Up Diagnostic

screen to assess the status of system elements during the power up cycle

and accurately troubleshoot potential problems.

See Chapter 5 for more information about monitoring and

troubleshooting systems.

1.4.4 System Safeguards

The TRBMIM-T includes the following system-safety components:

•

NVRAM protection– The NVRAM back-up battery provides power to

Non-Volatile Random Access Memory (NVRAM), preserving crucial

system data and conﬁguration settings when AC power is removed.

•

Thermal sensors – The two thermal sensors detect overheating in the

MMAC before the temperature becomes critical. The

master-management module in the MMAC responds by sending an

alarm trap to the Network Management Station monitoring the

network and by emitting an audible alarm.

•

Recovery from beaconing – Cabletron Systems ABRP is a software

component that works in conjunction with the TRBMIM/TRBMIM-T

operating code to provide an automated means of restoring the

TRBMIM/TRBMIM-T managed ring experiencing hard errors to

normal operating status.

This section describes TRBMIM-T management resources.

Local Management (LM)

LM is the management agent in TRBMIM-T that provides multiple

applications for controlling and monitoring all functional aspects of the

TRBMIM-T and its host Token Ring network.

INTRODUCTION

1-11

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