3Com Switch 8800 Family Configuration Guide

250 CHAPTER 26: AAA AND RADIUS/HWTACACS PROTOCOL CONFIGURATION
Perform the following configuration in RADIUS scheme view.
The default value of the response timeout timer of a RADIUS server is 3 seconds.
Setting Quiet Time of
RADIUS Server
When the communication between the switch and the RADIUS Server is
interrupted, the switch will stop processing request packets from the users, and
will send user request packets to the RADIUS Server after it has waited for a
certain period of time.
Use the following command to set the quiet time of the RADIUS Server.
Perform the following configuration in RADIUS scheme view.
By default, the quiet time of the primary server is 5 minutes.
Setting the
Retransmission Times of
RADIUS Request Packets
Since RADIUS protocol uses UDP packet to carry the data, the communication
process is not reliable. If the RADIUS server has not responded NAS before
timeout, NAS has to retransmit RADIUS request packet. If it transmits more than
the specified retry-times, NAS considers the communication with the current
RADIUS server has been disconnected, and turn to send request packet to other
RADIUS server.
You can use the following command to set retransmission times of RADIUS
request packet.
Perform the following configuration in RADIUS scheme view.
By default, RADIUS request packet will be retransmitted up to three times.
Enabling the Selection
of Radius Accounting
Option
If no RADIUS server is available or if RADIUS accounting server fails when the
accounting optional is configured, the user can still use the network resource,
otherwise, the user will be disconnected.
Tabl e 213 Set RADIUS server response timeout timer
Operation Command
Set the response timeout timer of RADIUS
server
timer response-timeout seconds
Restore the default value of the response
timeout timer of RADIUS server
undo timer response-timeout
Tabl e 214 Set quiet time of RADIUS Server
Operation Command
Set quiet time of RADIUS Server timer quiet minutes
Restore quiet time of RADIUS Server to the default value undo timer quiet
Tabl e 215 Set the retransmission times of RADIUS request packets
Operation Command
Set retransmission times of RADIUS request packet retry retry-times
Restore the default value of retransmission times undo retry