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Configuration Guide - Network Management and Monitoring

CloudEngine 12800 and 12800E V200R005C10

This document describes the configurations of Network Management and Monitoring, including SNMP, RMON, LLDP, NQA, Service Diagnosis, Mirroring, Packet Capture, sFlow, and NETCONF.
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Configuring an ICMP Test Instance

Configuring an ICMP Test Instance

Context

Before configuring an ICMP test instance, configure reachable routes between the NQA client and the tested device.

An ICMP test has the same function as the ping command but displays more detailed information.

NOTE:

Perform the following steps on the NQA client.

The timeout, probe-count, frequency, and interval commands constrain each other; therefore, properly set the values when running the four commands. Improper command settings may lead to test failure.

  • On a network with poor quality and low transmission rate, increase the timeout value to ensure that the response to NQA detection packets can be received.
  • On a network with low reliability, increase the probe-count value because multiple detection packets may need to be sent to ensure successful detection.
  • The interval value must be larger than the timeout value.
  • The frequency value must comply with the following rules:

    frequency > interval x (probe-count - 1) + timeout

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run nqa test-instance admin-name test-name

    An NQA test instance is created, and the NQA view is displayed.

    By default, no NQA test instance is created.

  3. Run test-type icmp

    The test type is set to ICMP.

    By default, no test type is configured.

  4. Run destination-address { ipv4 ipv4-address | ipv6 ipv6-address }

    The destination address is configured.

    By default, destination address is not configured for an NQA test instance.

  5. (Optional) Run the following commands as required to configure parameters for the ICMP test.

    • Run description string

      A description is configured for the test instance.

      By default, no description is configured for an NQA test instance.

    • Run frequency interval

      The interval at which the NQA test instance is automatically executed is set.

      By default, the interval at which an NQA test instance is automatically performed is not configured. That is, the test is performed for one time.

    • Run timeout time

      The timeout period of a probe is set for the NQA test instance.

      By default, the timeout period of an ICMP probe is 3 seconds.

    • Run source-interface interface-type interface-number

      The source interface that sends test packets is configured.

      By default, no source interface is configured for an NQA test instance.

    • Run source-address { ipv4 ipv4-address | ipv6 ipv6-address }

      The source IP address is configured.

      ip-address and ipv6-address are similar to -a in the ping command.

      By default, the IP address of the interface where packets are sent functions as the source IP address of a test instance.

    • Run ttl number

      The TTL value is set.

      number is similar to -h in the ping command.

      The default TTL value is 30.

    • Run datasize size

      The size of Echo Request packets excluding the IP header is configured.

      size is similar to -s in the ping command.

      The default size is 0, which indicates that the test packet does not carry data information.

    • Run datafill fillstring

      The padding field is configured.

      fillstring is similar to -p in the ping command.

      By default, there are no padding characters in an NQA test instance.

    • Run sendpacket passroute

      The NQA test instance is configured to send packets without searching the routing table.

      By default, the test packet is sent according to the routing table.

    • Run probe-count number

      The number of probes in a test is set.

      By default, the number of probes for an NQA test instance is 3.

    • Run tos value

      The type of service (ToS) field value in an IP header is configured.

      value is similar to -tos in the ping command.

      By default, the ToS value is 0.

    • Run fail-percent percent

      The failure percentage is set for the NQA test instance.

      By default, the failure percentage is 100%. That is, the test is regarded as a failure only when all the probes fail.

    • Run interval seconds interval

      The interval at which test packets are sent is configured.

      interval is similar to -m in the ping command.

      By default, The interval is 4 seconds for ICMP test instance.

    • Run vpn-instance vpn-instance-name

      The VPN instance name is configured.

      By default, no VPN instance is configured.

    • Run records history number

      The maximum number of historical records is set for the NQA test instance.

      By default, the number of history records is 60.

    • Run records result number

      The maximum number of result records is set for the NQA test instance.

      By default, the number of test results is 5.

    • Run agetime hh:mm:ss

      The aging time is set for the NQA test instance.

      The default aging time of an NQA test instance is 0, indicating that the test instance is not aged.

  6. Run commit

    The configuration is committed.

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Updated: 2019-04-20

Document ID: EDOC1100075344

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