HP Transcend Traffix Manager manual Rmon Overview

RMON Overview 37

RMON Overview Traffix Manager supports all agents that are compliant with the Internet Engineering Task Force (IETF) Remote MONitoring Management Information Base Version 1 (RMON-1 MIB), defined in RFC 1757, and Version 2 (RMON-2 MIB), defined in RFCs 2021 and 2074.

The RMON standards bring the following advantages to network monitoring:

■They provide an effective and efficient way to monitor the behavior of the entire LAN.

■They distribute the load of network monitoring between both remote devices and management stations.

■They are widely-used standards.

An RMON agent can be deployed as a stand-alone probe or embedded within another device. Management applications communicate with RMON agents using the SNMP protocol. In this way, RMON agents collect information about network behavior, and can then transfer it on command to an analysis site.

RMON agents have the following benefits:

■They improve the efficiency of staff by allowing them to remain in a centralized site while collecting information from widely dispersed LAN segments.

■They can continuously monitor and collect information and deliver it before problems occur, allowing you to take a proactive approach to managing your network.

■Each remote agent can handle requests from multiple management stations.

Remote Monitoring A client sets RMON variables on the device to specify measurement intervals, monitored thresholds and other operational parameters. The remote device collects and stores information and delivers it to a client on request.

RMON-2 Standard RMON-2 is an extension of the RMON-1 standard. The most visible and most beneficial capability of RMON-2 is monitoring above the MAC layer. RMON-2 collects statistics at the network and application layers of the protocol stack to provide a view of the whole network rather than a