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# Monitoring RADIUS Server Information

#### Purpose

Display RADIUS server information.

Use with the optional accounting, authentication, dynamic-request, route-download, or pre-authentication keywords to limit output to the specific type of server.

#### Action

To display RADIUS server configuration information:

    host1#show radius servers
                   RADIUS Authentication Configuration
                   -----------------------------------
                    Udp    Retry             Maximum    Dead
     IP Address     Port   Count   Timeout   Sessions   Time   Secret  Status
     -------------   ----   -----   -------   --------  ----  ------  ------
     172.28.30.117   1812   3        3         255      30     radius  dead
     172.28.30.118   1812   3        3         255      30     radius  active
     172.28.30.119   1812   3        3         255      30     radius  alive

                     RADIUS Accounting Configuration
                     -------------------------------
                    Udp    Retry             Maximum    Dead
     IP Address     Port   Count   Timeout   Sessions   Time   Secret  Status
     -------------  ----   -----   -------  --------   ----    ------  ------
     172.28.30.117   1813   3       3         255       30     radius  dead
     172.28.30.118   1813   3       3         255       30     radius  active
     172.28.30.119   1813   3       3         255       30     radius  alive

                   RADIUS Pre-Authentication Configuration
                   ---------------------------------------
                    Udp    Retry             Maximum    Dead
     IP Address     Port   Count   Timeout   Sessions   Time   Secret  Status
    -------------   ----   -----   -------   --------  ----   ------  ------
     172.28.30.117   1812   3       3         255       30     radius  dead
     172.28.30.118   1812   3       3         255       30     radius  active
     172.28.30.119   1812   3       3         255       30     radius  alive

                   RADIUS Route-Download Configuration
                   -----------------------------------
                    Udp    Retry             Maximum    Dead
     IP Address     Port   Count   Timeout   Sessions   Time   Secret  Status
    -------------   ----   -----   -------   --------   ----   ------  ------
    192.168.30.16   1812   3       3         255        30     radius  dead
    192.168.30.17   1812   3       3         255        30     radius  active
    192.168.30.18   1812   3       3         255        30     radius  alive

#### Meaning

Table 27 lists the show radius servers command output fields.

Table 27: show radius servers Output Fields

Field Name | Field Description
--- | ---
IP Address | IP address of RADIUS server
Udp Port | Number of the UDP port of the RADIUS server
Retry Count | Maximum number of times that the router retransmits a RADIUS packet to the RADIUS server
Timeout | Interval (in seconds) before the router retransmits a RADIUS packet to the RADIUS server
Maximum Sessions | Number of outstanding requests to the RADIUS server
Dead Time | Amount of time to remove the authentication server or accounting server from the available list when a timeout occurs
Secret | Configured authentication server or accounting server secret
Status | Status of the configured RADIUS server: dead-The status displayed if the server does not respond within the configured number of retransmit counts, and if Dead Time is configured to a non-zero value. active-The status displayed of the earliest configured, non-dead server if the server is accessed using the direct algorithm. The status displayed of all non-dead servers if the server is accessed using the round-robin algorithm. alive-The status displayed of all non-dead servers except the earliest configured non-dead server, if the server is accessed using the direct algorithm. The status of none of the servers if the server is accessed using the round-robin algorithm.

#### Related Topics

- show radius servers

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