Brocade BigIron RX Series Configuration Guide User Manual
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BigIron RX Series Configuration Guide
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Configuring 802.1x port security
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Specifying the number of EAP-request/identity frame retransmissions
If the BigIron RX does not receive a EAP-response/identity frame from a Client, the device waits 30 
seconds (or the amount of time specified with the timeout tx-period command), then retransmits 
the EAP-request/identity frame. By default, the BigIron RX retransmits the EAP-request/identity 
frame a maximum of two times. If no EAP-response/identity frame is received from the Client after 
two EAP-request/identity frame retransmissions, the device restarts the authentication process 
with the Client. 
You can optionally specify between 1 – 10 frame retransmissions. For example, to configure the 
device to retransmit an EAP-request/identity frame to a Client a maximum of three times, enter the 
following command.
BigIron RX(config-dot1x)# maxreq 3
Syntax: maxreq <value>
Specifying a timeout for retransmission of messages 
to the authentication server
When performing authentication, the BigIron RX receives EAPOL frames from the Client and passes 
the messages on to the RADIUS server. The device expects a response from the RADIUS server 
within 30 seconds. If the RADIUS server does not send a response within 30 seconds, the BigIron 
RX retransmits the message to the RADIUS server. The time constraint for retransmission of 
messages to the Authentication Server can be between 1 – 4294967295 seconds. 
For the BigIron RX, the possible values are 1 - 4294967295.
For example, to configure the device to retransmit a message if the Authentication Server does not 
respond within 45 seconds, enter the following command.
BigIron RX(config-dot1x)# servertimeout 45
Syntax: servertimeout <seconds>
Specifying a timeout for retransmission of 
EAP-request frames to the client
Acting as an intermediary between the RADIUS Authentication Server and the Client, the BigIron RX 
receives RADIUS messages from the RADIUS server, encapsulates them as EAPOL frames, and 
sends them to the Client. When the BigIron RX relays an EAP-Request frame from the RADIUS 
server to the Client, it expects to receive a response from the Client within 30 seconds. If the Client 
does not respond within the allotted time, the device retransmits the EAP-Request frame to the 
Client. The time constraint for retransmission of EAP-Request frames to the Client can be between 
1 – 4294967295 seconds. 
For example, to configure the device to retransmit an EAP-Request frame if the Client does not 
respond within 45 seconds, enter the following command.
BigIron RX(config-dot1x)# supptimeout 45
Syntax: supptimeout <seconds>
