RMON advanced management

The switch supports RMON (remote monitoring) on all connected network segments. This allows for troubleshooting and optimizing your network.

The following RMON groups are supported:

  • Ethernet Statistics (except the numbers of packets of different frame sizes)

  • Alarm

  • History (of the supported Ethernet statistics)

  • Event

The RMON agent automatically runs in the switch. Use the RMON management station on your network to enable or disable specific RMON traps and events. Note that you can access the Ethernet statistics, Alarm, and Event groups from the HP Switch Manager network management software. For more information on PCM+, see the HP Networking web site at

www.hp.com/networking

From the Products menu, select Network Management. Then click on PCM+ Network Management under the HP Network Management bar.

The CLI supports the configuration of RMON alarm threshold settings. The settings can be saved in the configuration file.

Syntax

[no] rmon alarm entry number alarm-variable sampling-interval absolute | delta rising-threshold threshold-value1 falling-threshold2 threshold-value2 owner string

This command configures RMON sampling periods and threshold parameters. The no option removes the alarm entry.

entry number <1-65535>: An alarm number that uniquely identifies the alarm threshold entry.

alarm-variable <object-string>: Object identifier of the particular variable to be sampled. Variables must be of type Integer in order to be sampled.

sampling-interval <5-65535>: Time interval in seconds over which data is sampled and compared with the rising-threshold and the falling-threshold.

absolute: The value of the selected variable is compared directly with the thresholds at the end of the sampling interval.


[NOTE: ]

NOTE: If the absolute option is used for alarm variables of counter-type, an RMON trap is generated only once, when the threshold limit is reached. The RMON trap is never generated again.


It is recommended that you use the delta option instead when using a counter-type alarm variable.

delta: The value of the selected variable at the last sample is subtracted from the current value, and the difference is compared with the thresholds.

rising-threshold <threshold-value1>:An integer value for the upper threshold for the sampled statistic. A single event is generated when the current sampled value of the specified statistic becomes greater than or equal to this threshold, and if the value at the last sampling intervals was less than this threshold.


[NOTE: ]

NOTE: The value of the rising-threshold must be greater than the value of the falling-threshold.


falling-threshold <threshold-value2>: An integer value for the lower threshold for the sampled statistic. A single event is generated when the current sampled value of the specified statistic becomes less than or equal to this threshold, and if the value at the last sampling interval was greater than this threshold.

owner <string>: The name of the owner of this alarm.

Examples

Configuring the RMON Alarm Parameters in the CLI

Configuring the RMON Alarm Parameters in the CLI

Removing an RMON Alarm

Removing an RMON Alarm

Show Command Output for a Specific Alarm

Show Command Output for a Specific Alarm

Display Command Output for a Specific Alarm

Display Command Output for a Specific Alarm

Output of the running-config File Displaying the Configured RMON Alarm Parameters

Output of the running-config File Displaying the Configured RMON Alarm Parameters