Supported Standards, Mibs And Rfcs - Nokia ESB26 User Manual

26. Remote Monitoring
The Ethernet Statistics Group
The Ethernet Statistics group contains statistics of packets, bytes, broadcasts, multicasts, and
errors, measured by the probe for each monitored Ethernet interface on the switch.
Information from the Statistics group is used to detect changes in traffic and error patterns in
critical areas of the network.
The History Group
The History group provides historical views of network performance by taking periodic
samples of the counters supplied by the Statistics group.
The group is useful for analyzing traffic patterns and trends on an Ethernet interface on the
switch and for establishing baseline information indicating normal operating parameters.
The Alarms Group
The Alarms group periodically takes statistical samples from variables in the probe and
compares them to previously configured thresholds. If the monitored variable crosses a
threshold, an event is generated. Both rising and falling thresholds are supported, and
thresholds can be specified on the absolute or delta value of a variable. In addition, alarm
thresholds can be set manually or automatically.
Alarms inform you of a network performance problem and can trigger automated action
responses through the Events group.
The Events Group
The Events group controls the generation and notification of events from the switch. The
Events group creates entries in an event log and/or sends SNMP traps to the management
workstation. An event is triggered by an RMON alarm. The action taken can be configured to
ignore the event, to log it, to send an SNMP trap to the receivers listed in the trap receiver
table, or to both log the event and send a trap. The RMON traps are defined in RFC 1757 for
rising and falling thresholds.
Effective use of the Events group saves you time. Rather than having to watch real-time
graphs for important occurrences, you can depend on the Events group for notification.
Through the SNMP traps, events can trigger other actions, which provide a mechanism for an
automated response to certain occurrences.

Supported Standards, MIBs and RFCs

Standards
No standards are supported by this feature.
MIBs
RFC 1757, Remote Network Monitoring Management Information Base
MN700004 Rev 01 305