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R ON A K S AS W A NE Y

I D : 0 7 1 0 2 2 9

D A T E : 0 3 / 0 2 / 1 0

RMONRemote Networking Monitoring

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RMON Introduction & RMON probes

y What is a RMON?A simple definition

Remote Monitoring (RMON) is a standard monitoring specification that enablesvarious network monitors and console systems to exchange network-monitoring data.They provide standard information that a network administrator can use to monitor,analyze, and troubleshoot a group of distributed local area networks (LANs).

y

What are RMON probes?The probes are the actual network device that do the monitoring. They contain RMONsoftware agents that collect information and analyze packets.

y How do the probes work during Remote Monitoring?

An RMON implementation typically operates in a client/server model. These probesact as servers and the Network Management applications that communicate with

them, act as clients. RMON probes are often placed permanently into networks. Theprobe can monitor traffic and set an alarm when a certain condition occurs. In short,probes are network devices that analyzes RMON information, gathers all theinformation and sends it to the main office (RMON Manager). This is where thegathered data is viewed. The data are in the form of graphs and lists, made by theprobes.

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RMON probes continued..

Question: Can RMON assist in solving a network problem ? How ?

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Versions of RMON

There are 2 versions of RMON:

1. RMON version 1 RMON1

2. RMON version 2 RMON2

RMON1 only allows network monitoring at MAC layer or below. RMON2 is an extension of RMON that focuses on higher layers of traffic above the

MAC layer. It has an emphasis on IP traffic and application-level traffic; It allows

network management applications to monitor packets on all network layers.

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RMON1

There are many groups within the RMON, which has its own specific

function, listed below:

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RMON2

There are many groups within the RMON, which has its own specific

function, listed below:

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RMON

y The RMON can be configured on the Cisco networking devices, such as the Catalyst

enterprise LAN switches & the Cisco routers.

y The RMON needs the SNMP (Simple Network Management Protocol) agent to be in

the router, in order for the RMON to perform its tasks.

y Present Cisco devices support both RMON1 and RMON2.

y Below I have highlighted some of the changes and improvements that have taken

place with the Cisco devices making RMON more effective:

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RMON

Few examples of the concepts that can be configured on the Cisco Devices:

y Event Notification

y Alarm Notification

THANK YOU !!RONAK S ASWANEY