3Com Switch 7750 Series
Command Reference Guide – 802.1x Chapter 1 802.1x Configuration Commands
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1.1.14 dot1x timer Syntax
dot1x timer { handshake-period handshake-period-value | reauth-period
reauth-period-value | quiet-period quiet-period-value | tx-period tx-period-value |
supp-timeout supp-timeout-value | server-timeout server-timeout-value | ver-period
ver-period-value }
undo dot1x timer { handshake-period | reauth-period | quiet-period | tx-period |
supp-timeout | server-timeout | ver-period }
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System view
Parameter
handshake-period: Handshake period timer, triggered when the user has successfully
passed the authentication. It sets the time interval for the switch to resend handshake
request packets to check whether the user is still online. If, after N times (as specified
by the dot1x retry command) of retries, the switch still has not received any response
packet from the supplicant system, it will assume that the user is offline.
handshake-period-value: Value of the handshake timer, in seconds. This value can
range from 1 to 1024 and defaults to 15.
reauth-period: Re-authentication period timer. Within this timer period, a supplicant
system initializes 802.1x re-authentication.
reauth-period-value: Value (in seconds) of the re-authentication period timer. This value
ranges from 1 to 86400 and defaults to 3600.
quiet-period: Quiet-period timer, triggered after the user has failed the authentication.
After the time (as specified by the quiet-period timer) has elapsed, the user can resend
the authentication request. During the period, the switch will perform no authentication.
quiet-period-value: Value of the quiet-period timer, in seconds. This value can range
from 10 to 120 and defaults to 60.
tx-period: This timer sets the tx-period and is triggered by the switch in one of the
following two cases: The first case is when the client requests for authentication. The
switch sends a unicast request/identity packet to a supplicant system and then enables
the transmission timer. The switch sends another request/identity packet to the
supplicant system if the supplicant system fails to send a reply packet to the switch
when this timer times out. The second case is when the switch authenticates the 802.1x
client who does not request for authentication actively. The switch sends multicast
request/identity packets continuously through the port enabled with 802.1x function,
with the interval of tx-period.