Dell EMC SmartFabric OS10 User Guide Release 10.5.2

If the authenticator sends a Request Identity frame but the supplicant does not respond, the authenticator waits 30 seconds and then retransmits the frame. There are several reasons why the supplicant might fail to respond—the supplicant maybe booting when the request arrived, there may be a physical layer problem, and so on.

1. Configure the amount of time that the authenticator waits before retransmitting an EAP Request Identity frame in INTERFACE mode, from 1 to 65535 – 1 year, default 60.

   dot1x timeout tx-period seconds

2. Configure a maximum number of times the authenticator retransmits a Request Identity frame in INTERFACE mode from 1 to 10, default 2.

   dot1x max-req retry-count

Configure and verify retransmission time

OS10(config)# dot1x system-auth-control
OS10(config)# interface range ethernet 1/1/7-1/1/8
OS10(conf-range-eth1/1/7-1/1/8)# dot1x timeout tx-period 120
OS10(conf-range-eth1/1/7-1/1/8)# dot1x max-req 5
OS10(conf-range-eth1/1/7-1/1/8)# do show dot1x interface ethernet 1/1/7

802.1x information on ethernet1/1/7
-------------------------------------
Dot1x Status:             Enable
Port Control:             AUTO
Port Auth Status:         UNAUTHORIZED
Re-Authentication:        Enable
Tx Period:                120 seconds
Quiet Period:             60 seconds
Supplicant Timeout:       30 seconds
Server Timeout:           30 seconds
Re-Auth Interval:         3600 seconds
Max-EAP-Req:              5
Host Mode:                MULTI_HOST
Auth PAE State:           Initialize
Backend State:            Idle

View interface running configuration

OS10(conf-range-eth1/1/7-1/1/8)# do show running-configuration interface
...
!
interface ethernet1/1/7
 no shutdown
 dot1x max-req 5
 dot1x port-control auto
 dot1x re-authentication
 dot1x timeout quiet-period 120
 dot1x timeout tx-period 120
!
interface ethernet1/1/8
 no shutdown
 dot1x max-req 5
 dot1x port-control auto
 dot1x re-authentication
 dot1x timeout quiet-period 120
 dot1x timeout tx-period 120
...