25Step Command Remarks5. (Optional.) Specify the payloadsize in each ICMP echo request. data-size size The default setting is 100 bytes.6. (Optional.) Specify the string tobe filled in the payload of eachICMP echo request.data-fill stringThe default setting is the hexadecimalnumber00010203040506070809.7. Specify the source IP address ofICMP echo requests. source ip ip-addressBy default, no source IP address isspecified.The source IP address must be the IPaddress of a local interface, and theinterface must be up. Otherwise, noICMP echo requests can be sent out.8. (Optional.) Specify the numberof ICMP echo requests to be sentin a path jitter operation.probe packet-numberpacket-number The default setting is 10.9. (Optional.) Specify the intervalfor sending ICMP echo requests.probe packet-intervalpacket-interval The default setting is 20 milliseconds.10. (Optional.) Specify how longthe NQA client waits for aresponse from the server beforeit regards the response timesout.probe packet-timeoutpacket-timeoutThe default setting is 3000milliseconds.11. (Optional.) Specify an LSR path. lsr-path ip-address&<1-8>By default, no LSR path is specified.The path jitter operation uses thetracert to detect the LSR path to thedestination, and sends ICMP echorequests to each hop on the LSR.12. (Optional.) Perform the pathjitter operation only on thedestination address.target-onlyBy default, the path jitter operation isperformed on each hop on the pathto the destination.Configuring optional parameters for the NQA operationUnless otherwise specified, the following optional parameters apply to all types of NQA operations.To configure optional parameters for an NQA operation:Step Command Remarks1. Enter system view. system-view N/A2. Create an NQAoperation and enter NQAoperation view.nqa entry admin-nameoperation-tag By default, no NQA operation is created.3. Specify an NQAoperation type and enterits view.type { dhcp | dlsw | dns | ftp |http | icmp-echo | path-jitter |snmp | tcp | udp-echo |udp-jitter | udp-tracert |voice }N/A4. Configure a description. description text By default, no description is configured.