RMON Configuration 269
RMON Configuration Remote Monitoring (RMON) is a kind of MIB defined by Internet Engineering Task Force (IETF). It is an important enhancement to MIB II standards. RMON is mainly used to monitor the data traffic across a network segment or even the entire network, and is currently a commonly used network management standard.
Network Diagram Figure 81 Network diagram for RMON configuration
Networking and
Configuration
Requirements
Applicable Products
| Internet |
Console port | Network port |
Switch | NMS |
■Before performing RMON configuration, make sure the SNMP agents are correctly configured.
■The switch to be tested is connected to a terminal through the console port and to a remote NMS through the Internet. Create an entry in the extended alarm table to monitor the statistics on the Ethernet port. If the change rate of the entry exceeds the configured rising threshold or falling threshold, an alarm event will be triggered.
Product series | Software version | Hardware version |
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Switch 5500 | Release V03.02.04 | All versions |
Switch 5500G | Release V03.02.04 | All versions |
Switch 4500 | Release V03.03.00 | All versions |
Switch 4210 | Release V03.01.00 | All versions |
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Configuration Procedure # Create the statistics entry numbered 1 to take statistics on Ethernet 1/0/1.
<3Com>
[3Com] interface Ethernet 1/0/1
#Add the event entries numbered 1 and 2 to the event table, which will be triggered by the following extended alarms.
[3Com] rmon event 1 log
[3Com] rmon event 2 trap 10.21.30.55
#Add an entry numbered 2 to the extended alarm table to allow the system to calculate the alarm variables with the (.1.3.6.1.2.1.16.1.1.1.9.1+.1.3.6.1.2.1.16.1.1.1.10.1) formula to get the numbers of all the oversize and undersize packets received by Ethernet 1/0/1 that are in correct data format and sample the numbers in every 10 seconds. When the change ratio between samples reaches the rising threshold of 50, event 1 is triggered; when the change ratio drops under the falling threshold, event 2 is triggered. Set the sampling type to forever and the owner of the alarm table to user1.
