Cabletron Systems SmartSwitch Router, Руководство пользователя

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Chapter 21: RMON Configuration Guide
302 SmartSwitch Router User Reference Manual
Standard RMON Groups
This section describes the RMON groups that are enabled when you specify the Standard
support level. The Standard RMON groups are shown in the table below.
Professional RMON Groups
The Professional RMON groups correspond to the RMON 2 groups defined in RFC 2021.
While RMON 1 groups allow for the monitoring of packets at the MAC layer, RMON 2
groups focus on monitoring traffic at the network and application layers.
The Professional RMON groups are shown in the table below.
Table 7. Standard RMON Groups
Group Function
Host Records statistics about the hosts discovered on the network.
Host Top N Gathers the top n hosts, based on a specified rate-based
statistic. This group requires the hosts group.
Matrix Records statistics for source and destination address pairs.
Filter Specifies the type of packets to be matched and how and
where the filtered packets should flow (the channel).
Packet Capture Specifies the capture of filtered packets for a particular
channel.
Table 8. Professional RMON Groups
Group Function
Protocol Directory Contains a list of protocols supported by the SSR and
monitored by RMON. See the RMON 2 Protocol Directory
appendix in the
SmartSwitch Router Command Line Interface
Reference Manual .
Protocol Distribution Records the packets and octets for specified ports on a per
protocol basis.
Application Layer
Host Monitors traffic at the application layer for protocols defined
in the protocol directory.
Network Layer Host Monitors traffic at the network layer for protocols defined in
the Protocol Directory.