radius-server dead-detect-condition by-server-ip

Usage Scenario

The device periodically sends authentication request packets to the RADIUS server in Down state. If the RADIUS server responds, the device sets the RADIUS authentication server status to Up. The device does not perform keepalive detection for RADIUS accounting servers in Down state. Instead, the device sets the RADIUS accounting server status to Up only when the server recovery time expires.

To allow the device to promptly detect the status of RADIUS accounting servers that are in Down state, run the radius-server dead-detect-condition by-server-ip command. After the command is executed, the device performs keepalive detection on RADIUS servers based on the RADIUS server IP address, so that the status of RADIUS accounting server is associated with the status of authentication server.

Precautions

After the radius-server dead-detect-condition by-server-ip command is executed, run the radius-server testuser command to configure automatic user detection.

When detecting the Down states of RADIUS authentication and accounting servers, the device counts the numbers of authentication and accounting request packets separately. After the radius-server dead-detect-condition by-server-ip command is executed, if the authentication and accounting servers sharing the same IP address are in the same VPN instance, the device accumulates the number of authentication and accounting packets sent by the servers. In addition, the status of RADIUS authentication server with the same IP address in the same VPN instance is updated.