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NE40E V800R010C10SPC500 Configuration Guide - User Access 01

This is NE40E V800R010C10SPC500 Configuration Guide - User Access
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(Optional) Setting the Status Parameters of a RADIUS Server

(Optional) Setting the Status Parameters of a RADIUS Server

You can configure the status parameters of a RADIUS server on the NE40E to monitor the RADIUS server status.

Context

RADIUS clients can detect the status of RADIUS servers and determine the real-time status of RADIUS servers based on responses from the RADIUS servers. This helps identify which servers are in the Up state so as to process user request packets in real time.

The configuration is valid for all RADIUS servers.

Perform the following steps on the router:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run radius-server { dead-count dead-count [ fail-rate count ] | dead-interval interval }*

    The parameters for determining the status change of a RADIUS server from Up to Down are configured.

    If the NE40E sends RADIUS packets to the RADIUS server consecutively for a specified number of times but receives no response packet and the interval between the first ignored packet and the nth ignored packet where n is equal to dead-count is longer than the value of dead-interval, the NE40E considers that the RADIUS server is abnormal and sets its status to Down.

  3. Configure a mode for restoring the Up state of the RADIUS server after its status is set to Down.

    After the status of the RADIUS server is set to Down, two modes are available for restoring the Up state of the RADIUS server. Run either of the following command as required.

    • Run the radius-server dead-time dead-time [ recover-count invalid ] command to configure a period after which the status of the RADIUS server is automatically restored to Up.

      After the NE40E sets the status of a RADIUS server to Down, the NE40E waits a period specified by dead-time. Then, the NE40E sets the status of the RADIUS server to Up and attempts to set up a connection with it. If the connection cannot be set up, the NE40E sets the status of the RADIUS server to Down again.

      If recover-count invalid is configured, the NE40E sets the RADIUS server status to Up only after the Up timer expires, irrespective of whether response packets are received from the RADIUS server during connection re-establishment.

    • Run the radius-server state-recovery-detect { authentication | accounting } username username [ detect-interval detect-interval ] [ detect-threshold detect-threshold ] command to enable RADIUS server status detection and restoration.

      After the status of a RADIUS server is set to Down, the status of the RADIUS server is automatically restored to Up after a specified period of time by default. However, the NE40E does not know the actual status of the RADIUS server and only assumes that the server is Up. To allow the NE40E to accurately determine the status of the RADIUS server, run the radius-server state-recovery-detect { authentication | accounting } username username [ detect-interval detect-interval ] [ detect-threshold detect-threshold ] command to enable RADIUS server status detection and restoration.

      Then, the NE40E sends detection packets to the RADIUS server at an interval specified by detect-interval using a user name specified by username. If detection succeeds for a consecutive number of times specified by detect-threshold, the NE40E sets the RADIUS server status to Up again.

      NOTE:
      After the radius-server state-recovery-detect command is run, the radius-server dead-time dead-time [ recover-count invalid ] command configuration fails to take effect. In other words, the status of the RADIUS server will not be automatically restored to Up after a period specified by dead-time elapses.

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Updated: 2019-01-03

Document ID: EDOC1100055031

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