User's Manual
Table Of Contents
- About this User Guide
- Table Of Contents
- Chapter 1– Setting Up And Administering The Switch
- Chapter 2 - Configuring MAC Address Management
- Chapter 3 – Configuring the Ports
- Chapter 4 – Configuring VLANs
- Chapter 5 – Configuring Class of Service
- Chapter 6 – Configuring Rapid Spanning Tree
- Chapter 7 – Configuring Multicast Filtering
- Chapter 8 – Diagnostics
- Chapter 9 – Using Ethernet And RMON Statistics
- Introduction
- View Ethernet Statistics
- View Ethernet Port Statistics
- Remote Monitoring (RMON)
- RMON Historical Statistics Concepts And Issues
- RMON Alarms And Events Concepts And Issues
- The Alarm Process
- Alarm Generation And Hysteresis
- Delta vs. Absolute Values
- Configure RMON Alarms
- Configure RMON Events
- RMON Event Logs
- Troubleshooting
- Chapter 10 - Using The CLI Shell
- Chapter 11 – Upgrading Firmware And Managing Configurations
- Appendix A - Menu Tree
- Appendix B - SNMP MIB Support
- Appendix C – SNMP Trap Summary
- Appendix D – RMON Acceptable MIB Parameters
- Index

Chapter 8 – Diagnostics
Each alarm has an associated description string. The string will include a port
number if it is relevant. The description may also provide an indication of the
recent rate at which this alarm is occurring (if the alarm has occurred previously).
Alarms And The Critical Failure Relay
All active alarms will immediately de-energize the critical fail relay (thus signifying
a problem). The relay will be re-energized when the last outstanding active alarm
is cleared.
Viewing And Clearing Alarms
Viewing Alarms
The Alarms Menu is available from the Diagnostics menu View Alarms command.
Alarms are displayed in the order in which they occurred, even if the real time
clock was incorrect at the time of the alarm.
Figure 48: Alarms Menu
My Switch Alarms 6 ALARMS!
Level Time Description
WARN Jan 5 17:55 Port 8 down is occurring (2 times in 192 sec)
WARN Jan 5 18:30 Port 13 down has occurred (9 times in 19 hr)
WARN Jan 5 19:10 Port 5 is down
WARN Jan 6 13:44 Port 7 down has occurred (2 times in 23 hr)
WARN Jan 6 17:40 Port 12 was down
WARN Jan 6 23:02 Port 6 is down
<CTRL> Z-Help S-Shell D-PgDn U-PgUp
Clearing Alarms
The Diagnostics menu Clear Alarms command will clear all alarms.
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