Cisco Systems 3750E Changing the Quiet Period, Changing the Switch-to-Client Retransmission Time

Chapter 10 Configuring IEEE 802.1x Port-Based Authentication

Configuring IEEE 802.1x Authentication

Changing the Quiet Period

When the switch cannot authenticate the client, the switch remains idle for a set period of time and then tries again. The dot1x timeout quiet-periodinterface configuration command controls the idle period. A failed authentication of the client might occur because the client provided an invalid password. You can provide a faster response time to the user by entering a number smaller than the default.

Beginning in privileged EXEC mode, follow these steps to change the quiet period. This procedure is optional.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	interface interface-id	Specify the port to be configured, and enter interface configuration mode.
Step 3
	dot1x timeout quiet-period seconds	Set the number of seconds that the switch remains in the quiet state
		following a failed authentication exchange with the client.
		The range is 1 to 65535 seconds; the default is 60.
Step 4
	end	Return to privileged EXEC mode.
Step 5
	show dot1x interface interface-id	Verify your entries.
Step 6
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To return to the default quiet time, use the no dot1x timeout quiet-periodinterface configuration command.

This example shows how to set the quiet time on the switch to 30 seconds:

Switch(config-if)#dot1x timeout quiet-period 30

Changing the Switch-to-Client Retransmission Time

The client responds to the EAP-request/identity frame from the switch with an EAP-response/identity frame. If the switch does not receive this response, it waits a set period of time (known as the retransmission time) and then resends the frame.

Note You should change the default value of this command only to adjust for unusual circumstances such as unreliable links or specific behavioral problems with certain clients and authentication servers.

Beginning in privileged EXEC mode, follow these steps to change the amount of time that the switch waits for client notification. This procedure is optional.

	Command		Purpose
Step 1	configure terminal		Enter global configuration mode.
Step 2	interface interface-id		Specify the port to be configured, and enter interface configuration mode.
Step 3	dot1x timeout tx-period seconds		Set the number of seconds that the switch waits for a response to an
			EAP-request/identity frame from the client before resending the request.
			The range is 5 to 65535 seconds; the default is 5.
		Catalyst 3750-E and 3560-E Switch Software Configuration Guide
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