RMON stands for Remote Monitoring. It is a standard used in telecommunications equipment e.g. in routers, which implement a MIB (Management Information Base) which allows for remote monitoring and management of network equipment. RMON uses an agent running on the device being monitored to supply information over SNMP to a management workstation (or some other system). EMANATE is such an agent. Telecommunication is the extension of communication over a distance. ... A Linksys NAT router, popular for home and small office networks A router is a computer networking device that forwards data packets toward their destinations through a process known as routing. ... A management information base (MIB) comprises a collection of objects in a (virtual) database used to manage entities (such as routers and switches) in a network. ... The Simple Network Management Protocol (SNMP) forms part of the internet protocol suite as defined by the Internet Engineering Task Force. ...
The current RMON standard is RFC 2819. Is is extended by several RFCs, including RFC 2021 which extends it towards the application layer.
RMON Groups
The standard describes functions, messages and data structures to support the nine RMON groups of: Statistics, History, Alarms, Hosts, Host Top N, Traffic Matrix, Filters, Packet Capture, and Events. Each of these groups provides specific sets of data to meet common network-monitoring requirements. Each group is optional so that vendors do not need to support all the groups within the Management Information Base (MIB). Some RMON groups require support of other RMON groups to function properly.
See Also
RFC 2819 -STD 59- Remote Network Monitoring Management Information Base
Obsolete RFC 1757 Remote Network Monitoring Management Information Base
Obsolete RFC 1271 Remote Network Monitoring Management Information Base
RFC 2021 Remote Network Monitoring Management Information Base Version 2 using SMIv2
RMON (Remote Network Monitoring) is fast becoming the industry standard for traffic management and packet level data collection for multi-segment LANs and WANs.
RMON can be supported by hardware Probes (embedded in a switch or router) or through software Probes (such as Network Instruments RMON2 Probe running on a Windows 98/2000/XP system).
RMON Probes may collect up to 19 types of information known as RMON groups, including packets sent, bytes sent, packets dropped, statistics by host, statistics by conversations between two sets of addresses, and lists of certain kinds of events which have occurred.
RMONMIB software agents can be located on a variety of devices: Network interconnects such as bridges, routers, or hubs; dedicated or non-dedicated hosts; or customized platforms specifically designed as network management instruments.
RMONMIB agents monitor every network device and are often the only way to determine the performance of such unmanageable devices.
The RMONMIB includes configurable capture slice sizes to store either the first few bytes of a packet where the various protocol headers are located or, at the limit, to store the entire packet.
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