Orion A10E - Figure 9-6 RMON; Introduction; Rmon

Orion Networks
A10E/A28E/A28F Configuration Guide
9 System management
Orion Networks
303
Alpha-A28E#show keepalive
Keepalive Admin State:Enable
Keepalive trap interval:120s
Keepalive trap count:1
9.3 RMON
9.3.1 Introduction
Remote Network Monitoring (RMON) is a standard stipulated by IETF (Internet Engineering
Task Force) for network data monitoring through different network Agent and NMS.
RMON is achieved based on SNMP architecture, including the network management center
and the Agent running on network devices. On the foundation of SNMP, increase the subnet
flow, statistics, and analysis to achieve the monitoring to one network segment and the whole
network, while SNMP only can monitor the partial information of a single device and it is
difficult for it to monitor one network segment.
RMON Agent is commonly referred to as the probe program; RMON Probe can take the
communication subnet statistics and performance analysis. Whenever it finds network failure,
RMON Probe can report network management center, and describes the capture information
under unusual circumstances so that the network management center does not need to poll the
device constantly. Compared with SNMP, RMON can monitor remote devices more actively
and more effectively, network administrators can track the network, network segment or
device malfunction more quickly. This approach reduces the data flows between network
management center and Agent, makes it possible to manage large networks simply and
powerfully, and makes up the limitations of SNMP in growing distributed Internet.
RMON Probe data collection methods:

Distributed RMON: network management center obtains network management
information and controls network resources directly from RMON Probe through
dedicated RMON Probe collection data.

Embedded RMON: embed RMON Agent directly to network devices (such as switches)
to make them with RMON Probe function. Network management center will collect
network management information through the basic operation of SNMP and the
exchange data information of RMON Agent.
The A10E/A28E adopts embedded RMON, as shown in Figure 9-6. The A10E/A28E
implements RMON Agent. Through this function, the management station can obtain the
overall flow, error statistics, and performance statistics of this network segment connected to
the managed network device interface to a monitor the network segment.
Figure 9-6 RMON