The nqa-server udpecho command configures the IP address and port number for the UDP server in an NQA test.
The undo nqa-server udpecho command deletes the IP address and port number configured for the UDP server in an NQA test.
By default, no IP address or port number is configured for the UDP server in an NQA test.
nqa-server udpecho [ vpn-instance vpn-instance-name ] ip-address port-number
undo nqa-server udpecho { [ vpn-instance vpn-instance-name ] ip-address port-number | all }
| Parameter | Description | Value |
|---|---|---|
vpn-instance vpn-instance-name |
Specifies the name of the VPN instance to which the server belongs. NOTE:
This parameter is invalid when a loopback address is specified as the UDP server address. |
The value is a string of 1 to 31 characters. |
all |
Specifies a server for all NQA test instances. |
- |
ip-address |
Specifies the IP address of the server for monitoring UDP services. |
The value is in dotted decimal notation. |
port-number |
Specifies the port number of the server for monitoring UDP services. |
The value is an integer that ranges from 1 to 65535. The configured port cannot be a well-known port or used by other modules. |
Usage Scenario
This command is used on a UDP server.
UDP packets are transmitted in a UDP Jitter test. The test is used to obtain the packet delay, jitter, and packet loss ratio by comparing timestamps in the request and response packets. A UDP server needs to be configured for an NQA test to respond to probe packets.
If the local IPv4 address cannot be predicted because of dynamic address allocation by DHCP, specify the auto-address keyword to configure the UDP service on the NQA server to automatically monitor all IPv4 addresses.
Configuration Impact
Running the undo nqa-server udpecho all command will delete the IP address and port number of the UDP server for all NQA UDP test instances.
Precautions
If the client and the server are connected through a VPN, you need to specify the VPN instance name.
No matter the version number of the UDP Jitter test packet is 1 or 2, you need to configure the NQA server. Otherwise, the UDP Jitter test instance will fail due to timeout.