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Configuration Guide - Security

CloudEngine 8800, 7800, 6800, and 5800 V200R005C10

This document describes the configurations of Security, including ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, Port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, separating the management plane from the service plane, security risks.
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(Optional) Configuring Timers for 802.1x Authentication

(Optional) Configuring Timers for 802.1x Authentication


During 802.1x authentication, multiple timers implement systematic interactions between access users, access devices, and the authentication server. You can change the values of timers by running the dot1x timer command to adjust the interaction process. This command is necessary in special network environments. It is recommended that you retain the default settings of the timers. You can configure the following types of timers in 802.1x authentication:
  • Client timeout timer (client-timeout): After sending an EAP-Request/MD5-Challenge request packet to the client, the device starts this timer. If the client does not respond within the period set by the timer, the device retransmits the packet.

  • User name request timeout timer (tx-period): This timer defines two intervals.
    • After sending an EAP-Request/Identity request packet to the client, the device starts the timer. If the client does not respond within the first interval set by the timer, the device retransmits the authentication request packet.
    • The device multicasts the EAP-Request/Identity request packet at the second interval to detect the client that does not actively send the EAPOL-Start connection request packet for compatibility. The timer defines the interval for sending the multicast packet.


  1. Run system-view

    The system view is displayed.

  2. Run dot1x timer { client-timeout client-timeout | tx-period tx-period }

    The 802.1x timers are configured.

    By default, the timeout interval of the authentication response from the client is 30 seconds, the interval for sending authentication requests is 30 seconds.

  3. Run commit

    The configuration is committed.

Updated: 2019-04-20

Document ID: EDOC1100074765

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