Cisco Cisco Packet Data Gateway (PDG) Manual De Mantenimiento
RADIUS Server State Behavior
▀ Understanding RADIUS Server States and Commands
▄ Cisco ASR 5000 Series AAA Interface Administration and Reference
OL-23000-01
Understanding RADIUS Server States and Commands
Server States
The system defines three server states for connected RADIUS servers:
Active: The server is believed to be operational.
Not Responding: The server has failed to respond to a message from the system a configured number of times
Not Responding: The server has failed to respond to a message from the system a configured number of times
(retries).
Down: The system is no longer sending requests to the server.
RADIUS Server Commands
RADIUS server states are controlled by parameters set in the RADIUS Server Group Configuration Mode. The
commands are:
commands are:
: Configures how the system determines that a RADIUS server is not functioning. One or both
of the following parameters should be set:
: Configures the consecutive number of times the RADIUS server is unreachable
by any single aaamgr on the system based on the
command. If this command is enabled, each
time the maximum number of retries is exceeded, this counter increments by one for the particular aaamgr and
server. When any aaamgr exceeds this counter for a specific RADIUS server, the server‘s state is changed to
―Down‖ and the deadtime timer is started. The default is enabled and 4.
server. When any aaamgr exceeds this counter for a specific RADIUS server, the server‘s state is changed to
―Down‖ and the deadtime timer is started. The default is enabled and 4.
: Configures a specific delay, in seconds, in receiving a response from the RADIUS
server before the server‘s state is changed to ―Down‖ and the deadtime timer is started. The default is disabled.
Important:
If
is configured and
is not,
the system will only wait for the specified period of time before changing the server‘s state to
―Down‖, ignoring other settings such as
―Down‖, ignoring other settings such as
, and
.
If
is configured and
is not,
is
removed entirely from the system, including default configuration. If both parameters are configured, then both
conditions must be met to change a RADIUS server‘s state to ―Down‖.
conditions must be met to change a RADIUS server‘s state to ―Down‖.
: Configure the maximum amount of time, in minutes, that must elapse after a context has exceeded
one or both of the
parameters, depending on which parameter is configured. Once
this timer has elapsed, the system reclassifies the RADIUS server as ―Active‖ and subsequent requests to it can
be made. If
be made. If
is not explicitly configured, the default value of 10 minutes is used.