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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 13

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Configuring RMON

Configuring RMON

RMON collects traffic statistics and monitors network status on the specified network segment.

Pre-configuration Tasks

Before configuring RMON, complete the following tasks:

  • Configuring Ethernet interface parameters
  • Configuring basic SNMP functions

Configuration Process

The RMON statistics function and RMON alarm function can be configured in any sequence. However, if the alarm variables configured in RMON alarm function are MIB variables defined in the statistics group or history group, the Ethernet statistics function or history statistics function must be configured on the monitored Ethernet interface first. Otherwise, alarm entries cannot be created.

Configuring RMON Statistics Functions

Context

RMON statistics functions include Ethernet statistics function and history statistics function, which apply to different scenarios:

  • To keep on collecting traffic statistics on an Ethernet interface, configure the Ethernet statistics function. Ethernet statistics include the number of network collisions, CRC error packets, undersized (or large) data packets, broadcast packets, multicast packets, received bytes, and received packets.
  • To store the statistics on the specified interface for later retrieval, configure the history statistics function. History statistics include bandwidth usage, number of error packets, and total of packets.

Procedure

  • Configuring Ethernet statistics
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface-number

      The interface view is displayed.

    3. Run:

      rmon-statistics enable

      RMON statistics function is enabled on an interface.

    4. Run:

      rmon statistics entry-number [ owner owner-name ]

      A statistics table is created and an entry is added to the table.

    5. Run:

      commit

      The configuration is committed.

  • Configuring history statistics
    1. Run:

      system-view

      The system view is displayed.

    2. Run:

      interface interface-type interface-number

      The interface view is displayed.

    3. Run:

      rmon-statistics enable

      RMON statistics function is enabled on an interface.

    4. Run:

      rmon history entry-number buckets number interval sampling-interval  [ owner owner-name  ]

      A history control table is created and an entry is added to the table.

    5. Run:

      commit

      The configuration is committed.

Configuring RMON Alarm Functions

Context

RMON alarm functions include event definition function and alarm threshold setting function.

To monitor the system running status, configure the alarm threshold setting function. When an error occurs in the system, the related event is triggered. The event definition function can determine whether to log the event or send a trap to the NMS.

If the alarm variables configured in RMON alarm function are MIB variables defined in the statistics group or history group, the Ethernet statistics function or history statistics function must be configured on the monitored Ethernet interface first.

Procedure

  1. Run:

    system-view

    The system view is displayed.

  2. Run the rmon event entry-number [ description string ] { log | trap object | log-trap object | none } [ owner owner-name ] command to create an event table and add an entry to the table.
  3. (Optional) Run:

    snmp-agent trap enable feature-name rmon [ trap-name { fallingalarm | risingalarm } ]

    The trap function is enabled for the RMON module.

    By default, all alarms for the RMON module are enabled. If only one or some event alarms need to be enabled, run the snmp-agent trap enable feature-name rmon trap-name command.

  4. Run:

    rmon alarmentry-number alarm-OID sampling-time  { absolute | changeratio | delta } rising-threshold threshold-value1 event-entry1 falling-threshold threshold-value2 event-entry2  [ startup-alarm { | rising | risingorfalling } ]  [ owner owner-name  ]

    An alarm table is created and an entry is added to the table.

  5. Run:

    commit

    The configuration is committed.

Checking the Configuration

Prerequisites

The RMON configurations are complete.

Procedure

  • Run the display rmon alarm [ entry-number ] command to view RMON alarm configurations.
  • Run the display rmon event [ entry-number ] command to view RMON event configurations.
  • Run the display rmon eventlog [ entry-number ] command to view details about RMON event logs.
  • Run the display rmon history [ interface-type interface-number ] command to view RMON history sampling records.
  • Run the display rmon statistics [ interface-type interface-number ] command to view RMON Ethernet statistics.
  • Run the display snmp-agent trap feature-name rmon all command to view the status of all traps about the RMON module.
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Updated: 2019-12-13

Document ID: EDOC1000041694

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