Ethernet Statistics; History (Control & Statistics); Alarm; Event - Alcatel-Lucent OmniSwitch 6800 Series Network Configuration Manual

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Diagnosing Switch Problems

RMON probes can be enabled or disabled via CLI commands. Configuration of Alarm threshold values

for RMON traps is a function reserved for RMON-monitoring NMS stations.

This feature supports basic RMON 4 group implementation in compliance with RFC 2819, including the

Ethernet Statistics, History (Control & Statistics), Alarms and Events groups (described below).

Note. RMON 10 group and RMON2 are not implemented in the current release. An external RMON

probe that includes RMON 10 group and RMON2 may be used where full RMON probe functionality is

Ethernet Statistics

Ethernet statistics probes are created whenever new ports are inserted and activated in the chassis. When a

port is removed from the chassis or deactivated, the Ethernet statistics group entry associated with the

physical port is invalidated and the probe is deleted.

The Ethernet statistics group includes port utilization and error statistics measured by the RMON probe

for each monitored Ethernet interface on the switch. Examples of these statistics include CRC (Cyclic

Redundancy Check)/alignment, undersized/oversized packets, fragments, broadcast/multicast/unicast, and

bandwidth utilization statistics.

History (Control & Statistics)

The History (Control & Statistics) group controls and stores periodic statistical samplings of data from

various types of networks. Examples include Utilization, Error Count, and Frame Count statistics.

The Alarm group collects periodic statistical samples from variables in the probe and compares them to

previously configured thresholds. If a sample crosses a previously configured threshold value, an Event is

generated. Examples include Absolute or Relative Values, Rising or Falling Thresholds on the Utilization

Frame Count and CRC Errors.

The Event group controls generation and notification of events from the switch to NMS stations. For

example, customized reports based on the type of Alarm can be generated, printed and/or logged.

Note. The following RMON groups are not implemented: Host, HostTopN, Matrix, Filter, and Packet

OmniSwitch 6800/6850/9000 Network Configuration Guide

Remote Monitoring (RMON)