ATL Telecom R1-SW Ethernet Switch - Manual (Page 153)

Configuring SNMP and RMON
8-19
The Corecess R1-SW24L2B supports the following four groups among the nine groups:
1) Statistics (RMON group 1)
Collects the number of packets/bytes, the number of broadcast/multicast packets, the
number of collisions, the number of errors occurred (fragment, CRC, jabber, short-length,
long-length) on an interface.
2) History (RMON group 2)
Collects a history group of statistics on Ethernet, Fast Ethernet, and Gigabit Ethernet
interfaces for a specified polling interval
3) Alarm (RMON group 3)
Monitors a specific management information base (MIB) object for a specified interval,
triggers an alarm at a specified value (rising threshold), and resets the alarm at another value
(falling threshold). Alarms can be used with events; the alarm triggers an event, which can
generate a log entry or an SNMP trap
4) Event (RMON group 9)
Determines the action to take when an event is triggered by an alarm. The action can be to
generate a log entry or an SNMP trap.