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RMON Support
The repeater's remote monitoring (RMON) support allows the management
system, such as HubView network management software, to remotely monitor
the repeater for diagnostic purposes. The repeater supports four RMON groups
including Statistics, History, Alarm, and Event.
Statistics Group
The Statistics group contains statistics measured for a collision domain. This
helps indicate the load on a collision domain and the overall health of the
domain by reporting conditions such as CRC (cyclic-redundancy check)
alignment errors, collisions, and undersize and oversize packets.
History Group
The History group records periodic statistical samples from the collision
domain and stores them in an SNMP table for later retrieval. The historyControl
table stores configuration entries, each of which defines an interface, polling
period, and other parameters. Once samples are taken, the sample data is stored
in an entry in a media-specific table. Each such entry defines one sample and is
associated with the historyControl entry that caused the sample to be taken. The
only media-specific table defined is the etherHistoryTable, for Ethernet
networks. You can specify the number of samples and sample interval.
You can sample the following variables:
Octets
BroadcastPkts
MulticastPkts
CRCAlignErrors
UndersizePkts
OversizePkts
Fragments
Netelligent 3512/3612 100Base-T Repeater User Guide
4-5
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