Configuring UDP-tracert test

Procedure

1. Access the system view.

   system-view

2. Create an NQA test instance and access the test instance view.

   nqa test-instance admin-name test-name

3. Set the test type to UDP-tracert.

   test-type trace

4. Set the destination address.

   destination-address ipv4 ip-address

5. Optional: Configure other parameters for the UDP-tracert test.

   Item	Command	Description
   Configuring description of a test instance	description description-information	-
   Configuring a tested VPN instance	vpn-instance vpn-instance-name	-
   Configuring the destination port	destination-port port-number	-
   Configuring the number of failed hops for the Traceroute test instance	tracert-hopfailtimes times	By default, the number of failed hops is set to 5.
   Configuring the initial TTL and maximum TTL of the test packet	tracert-livetime first-ttl first-ttl max-ttl max-ttl	By default, the initial TTL value is set to 1 and the maximum TTL value is set to 30.
   Setting the source IP address of test packets	source-address ipv4 ip-address	By default, no source IP address is specified for test packets. The packets use the primary IP address of the outbound interface as their source IP address. The specified source IP address must be the IP address of an Up interface on the FW. Otherwise, the test will fail.
   Setting the payload size of test packets	datasize size	By default, the payload size is 12 bytes. When the value of datasize is smaller than 12, the FW still constructs the payload of a packet based on 12 bytes. When the value of datasize is larger than 12, the FW constructs the payload of a packet based on the value of datasize.
   Setting the padding field of test packets	datafill string	By default, the FW pads the payload using a fixed string. The character string specified by datafill is used to circularly fill in the payload from the 12th byte. That is, the datafill configuration is valid only when the value of datasize is larger than 12.
   Configuring the number of probes in a single test (a probe indicates that a probe packet is sent to a node with a specific TTL value)	probe-count number	By default, one test initiates three probes.
   Setting the test interval	frequency interval	By default, no test interval is set, and the test runs only once.
   Setting the timeout for a single probe	timeout time	By default, the expiration time for a single probe in the UDP-tracert test is 3s.
   Configuring the maximum number of historical records	records history number	By default, there are a maximum of 50 historical records.
   Configuring the maximum number of test result records	records result number	By default, a maximum of five test results are recorded.
   Setting the aging time of a test instance	agetime hh:mm:ss	The default value is 0. That is, test instances are never aged.
   Configuring the system to send test packets without querying the routing table	sendpacket passroute	By default, the FW forwards the test packets based on the route queried in the routing table.

6. Start the NQA test.

   start

   Select one of the following start modes as required.

   • Start the NQA test immediately.

     start now [ end { at [ yyyy/mm/dd ] hh:mm:ss | delay { seconds second | hh:mm:ss } | lifetime { seconds second | hh:mm:ss } ]

   • Start the NQA test at a specified time point.

     start at [ yyyy/mm/dd ] hh:mm:ss [ end { at [ yyyy/mm/dd ] hh:mm:ss | delay { seconds second | hh:mm:ss } | lifetime { seconds second | hh:mm:ss } ]

   • Start the NQA test after the delay of a specified period.

     start delay { seconds second | hh:mm:ss } [ end { at [ yyyy/mm/dd ] hh:mm:ss | delay { seconds second | hh:mm:ss } | lifetime { seconds second | hh:mm:ss } ]