HP Transcend Traffix Manager - Manual (Page 37)

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