3com WX3000 Manuel D’Utilisation

 

2-4 

Display RMON statistics 

display rmon statistics [ interface-type 
interface-number | unit unit-number ] 

Display RMON history 
information 

display rmon history [ interface-type 
interface-number | unit unit-number ] 

Display RMON alarm 
information 

display rmon alarm [ entry-number ] 

Display extended RMON alarm 
information 

display rmon prialarm 
[ prialarm-entry-number ] 

Display RMON events 

display rmon event [ event-entry ] 

Display RMON event logs 

display rmon eventlog [ event-entry ] 

Available in any view

 

z 

As shown in 

, the Switch to be tested is connected to a remote NMS through the Internet. 

Ensure that the SNMP agents are correctly configured before performing RMON configuration. 

z 

Create an entry in the extended alarm table to monitor the information of statistics on the Ethernet 

port, if the change rate of which exceeds the set threshold, the alarm events will be triggered. 

Figure 2-1 Network diagram for RMON configuration 

Console port

Switch

Internet

Network port

NMS  

 

# Add the statistics entry numbered 1 to take statistics on GigabitEthernet 1/0/1. 

<device> system-view 

[device] interface GigabitEthernet 1/0/1 

[device-GigabitEthernet1/0/1] rmon statistics 1 

[device-GigabitEthernet1/0/1] quit 

# Add the event entries numbered 1 and 2 to the event table, which will be triggered by the following 

extended alarm. 

[device] rmon event 1 log 

[device] 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 GigabitEthernet 1/0/1 that are in correct data format 

and sample it 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.