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RMON Overview 81
■ Required if traps are to be sent — the IP address of the interface ethernet 0 is
the source address of the traps, and the address of the NMS is the destination
address.
II. Networking Diagram
Refer to the networking diagram of Example 1.
III. Configuration Procedure
1 Enable the router to support SNMP and select an SNMP version.
[Router] snmp-agent
2 Set SNMP groups, users and views.
[Router] snmp-agent mib-view included read_view subtree 1.3.6.1
[Router] snmp-agent mib-view included write_view subtree 1.3.6.1.5
[Router] snmp-agent mib-view excluded notify_view subtree 1.3.6.2
[Router] snmp-agent group v3 group_read noauthentication read -view
read_view
[Router] snmp-agent group v3 group_write privacy write-view
write_view
[Router] snmp-agent group v3 group_notify authentication read-view
notify_view
[Router] snmp-agent usm-user v3 user_read group_read
[Router] snmp-agent usm-user v3 user_write group_write
authentication md5 123 privacy-mod des56 asdf
[Router] snmp-agent usm-user v3 user_notify group_notify
authentication md5 qwer
3 Configure information of equipment administrator
[Router] snmp-agent sys-info contact Mr.Wang-Tel:3306
[Router] snmp-agent sys-info location telephone-closet,3rd-floor
4 Configure the router to send Traps to the host whose IP address is
129.102.149.23.
[Router] snmp-agent trap enable
[Router] snmp-agent target-host trap address 129.102.149.23
securityname user_notify parameters v3 auth
[Router] snmp-agent trap source ethernet 0
5 Configure an IP address for the Ethernet interface ethernet 0
[Router] interface ethernet 0
[Router-Ethernet0] ip address 129.102.0.1 255.255.0.0
RMON Overview RMON (Remote Monitor) is a MIB defined by IETF and is the most important
enhancement for the MIB II standard. It mainly monitors the data flow in a
network segment or on the entire network. It is implemented on the basis of the
SNMP architecture (one of its strengths), including NMS and Agent running on
network equipment.
RMON Agent performs statistics of diversified flow information on the network
segments connected to the ports, such as the total messages on a network
segment within a certain period or the total of correct messages sent to a host. It
enables SNMP to monitor remote network devices more efficiently and more
actively and provides an efficient method to monitor sub-network running. This
method can help reduce communication flows between the NMS and the Agent,