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Setting the maximum number of authentication request attempts
The network access device retransmits an authentication request if it receives no response to the request it
has sent to the client within a period of time (specified by using the
dot1x timer tx-period
tx-period-value
command or the
dot1x timer supp-timeout
supp-timeout-value
command). The network access device
stops retransmitting the request, if it has made the maximum number of request transmission attempts but
still received no response.
Follow these steps to set the maximum number of authentication request attempts:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Set the maximum number of
attempts for sending an
authentication request
dot1x retry
max-retry-value
Optional
2 by default
Setting the 802.1X authentication timeout timers
The network device uses the following 802.1X authentication timeout timers:
Client timeout timer—Starts when the access device sends an EAP-Request/MD5 Challenge packet
to a client. If no response is received when this timer expires, the access device retransmits the
request to the client.
Server timeout timer—Starts when the access device sends a RADIUS Access-Request packet to the
authentication server. If no response is received when this timer expires, the access device
retransmits the request to the server.
You can set the client timeout timer to a high value in a low-performance network, and adjust the server
timeout timer to adapt to the performance of different authentication servers. In most cases, the default
settings are sufficient.
Follow these steps to set the 802.1X timers:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Set the client timeout timer
dot1x timer supp-timeout
supp-
timeout-value
Optional
The default is 30 seconds.
Set the server timeout
timer
dot1x timer server-timeout
server-
timeout-value
Optional
The default is 100 seconds.
Configuring the online user handshake function
About the online user handshake function
The online user handshake function checks the connectivity status of online 802.1X users. The network
access device sends handshake messages to online users at the interval specified by the
dot1x timer
handshake-period
command. If no response is received from an online user after the maximum number of
handshake attempts (set by the
dot1x retry
command) has been made, the network access device sets the
user in the offline state.
