404CHAPTER 10: RMON
Key Concepts | The following section describes the key concepts of RMON and the |
| support provided by 3Com Network Director. |
What is RMON RMON (Remote Monitoring) is a network management standard that allows a centralized management application to gather information about the network from distributed network devices. The RMON standard breaks this information into various groups, each of which allows a management application to monitor the network in various different ways.
The five most commonly used RMON groups are:
■Statistics
■History
■Host
■HostTopN
■Matrix
Statistics
The Statistics group defines a standard by which a network device can make available information on current activity on each of its monitored interfaces and VLANs.
Gathered information includes:
■transmitted and received packets
■transmitted and received bytes
■various types of errors
■received multicast packets
■packet size distributions
The information in the Statistics group allows you to monitor what is happening on your network in real time.
History
The History group complements the Statistics group. It presents the same information as the Statistics group, but gathered historically over time.