Configuring an ICMP 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 ICMP.

   test-type icmp

4. Set the destination address.

   destination-address ipv4 ip-address

5. Optional: Configure other ICMP test parameters as required.

   Item	Command	Description
   Configuring description of a test instance	description description-information	-
   Configuring a tested VPN instance	vpn-instance vpn-instance-name	-
   Setting the outbound interface for sending the test packet	source-interface [ interface-type interface-number ]	By default, the FW determines the outbound interface by querying the routing table. If there are multiple paths to the tested destination address, you can specify the source interface, so that test packets are forwarded along a specified path.
   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	The default payload size is 20 bytes. If the specified datasize value is smaller than 20, the FW still creates ICMP packets with a 20-byte payload. If the datasize value is greater than 20, the FW creates ICMP packets based on the specified payload size.
   Setting the padding field of test packets	datafill string	By default, the FW pads the payload using a fixed string. The string specified in the datafill command is padded cyclically from the 29th byte of the payload. That is, the datafill configuration takes effect only when the datasize value is greater than 28.
   Setting the TTL value of test packets	ttl value	The default value is 30.
   Setting the ToS value of test packets	tos value	The default value is 0.
   Setting the interval at which test packets are sent	interval { seconds interval | milliseconds interval }	By default, ICMP test packets are sent every 4s.
   Setting the number of packets sent for a single test	probe-count number	By default, three ICMP test packets are sent for each test.
   Setting the test interval	frequency interval	By default, no test interval is set, and the test runs only once.
   Setting the probe failure percentage	fail-percent percent	The default probe failure percentage is 100%. That is, the test is considered failed only when all probes fail.
   Setting the timeout for a single probe	timeout time	By default, an ICMP probe times out in 3s.
   Setting the maximum number of historical records	records history number	By default, there are a maximum of 50 historical records.
   Setting the maximum number of test result records	records result number	By default, a maximum of 5 test results can be 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 forcible IP forwarding for the first node	ip-forwarding	By default, packets on MPLS networks are forwarded using MPLS.
   Setting the next-hop IP address of test packets	nexthop ipv4 ip-address	By default, the FW searches the routing table for the next-hop address.
   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 } ]