Question about a configuration entry in the eap.conf file.

Hello, I have a question about a configuration entry in the eap.conf file. What does the following entry mean: A list is maintained to correlate EAP-Response packets with EAP-Request packets. After a configurable length of time, entries in the list expire, and are deleted. timer_expire = 60 What will happen if I change the timer value? Thanks Terry Zarelli