Network Hardware User Manual

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LB308A
Chapter 5: Web-Based Browser Management
• Setting MIB variables according to the SNMP SET frame message.
• Generating an SNMP TRAP frame message to the Network Management
Station if the threshold of a certain MIB counter is reached or if other trap
conditions (such as the following) are met:
WARM START
COLD START
LINK UP
LINK DOWN
AUTHENTICATION FAILURE
RISING ALARM
FALLING ALARM
TOPOLOGY ALARM
MIB-II defines a set of manageable objects in various layers of the TCP/IP protocol
suites. MIB-II covers all manageable objects from Layer 1 to Layer 4, and, as a
result, is the major SNMP MIB supported by all vendors in the networking
industry. The Hardened Ethernet Extender Switch supports a complete
implementation of SNMP Agent and MIB-II.
5.1.3 RMON MIB (RFC 2819) and Bridge MIB (RFC 1493)
The Hardened Ethernet Extender Switch provides hardware-based RMON counters
in the Hardened Ethernet Extender Switch chipset. The Hardened Ethernet
Extender Switch manager CPU polls these counters periodically to collect the
statistics in a format that complies with the RMON MIB definition.
RMON Groups Supported
The Hardened Ethernet Extender Switch supports the following RMON MIB
groups defined in RFC 2819:
• RMON Statistics Group— maintains use and error statistics for the Hardened
Ethernet Extender Switch port being monitored.
• RMON History Group—gathers and stores periodic statistical samples from the
previous Statistics Group.