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Configuration Guide - Security

S9300, S9300E, and S9300X V200R011C10

This document describes the configurations of Security, including ACL, reflective ACL, local attack defense, MFF, attack defense, traffic suppression and storm control, ARP security, port security, DHCP snooping, ND snooping, PPPoE+, IPSG, SAVI, URPF, keychain, separating the management plane from the service plane, security risks.
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(Optional) Setting the Maximum Number of ND Snooping Dynamic Binding Entries to Be Learned by an Interface

(Optional) Setting the Maximum Number of ND Snooping Dynamic Binding Entries to Be Learned by an Interface

Context

If a lot of users go online through an interface, the device consumes many ND snooping dynamic binding entries to process the NS packets. To prevent this problem, you can set the maximum number of ND snooping dynamic binding entries to be learned by an interface. When the number of the ND snooping dynamic binding entries learned by an interface reaches the maximum number, no entry can be added.

You can set the maximum number of ND snooping entries in the system view or interface view. The configuration in the system view is valid for all interfaces. The settings in the interface view only take effect on the specified interface. If the settings are performed in both the interface view and system view, the smaller value is adopted.

Procedure

  • In the system view
    1. Run system-view

      The system view is displayed.

    2. Run nd snooping max-user-number max-user-number

      Maximum number of ND snooping dynamic binding entries to be learned by an interface is set.

      By default, the maximum number of ND snooping dynamic binding entries to be learned by an interface is the same as the number of ND snooping entries supported by the device.

  • In the interface view
    1. Run system-view

      The system view is displayed.

    2. Run interface interface-type interface-number

      The interface view is displayed.

    3. Run nd snooping max-user-number max-user-number

      Maximum number of ND snooping dynamic binding entries to be learned by an interface is set.

      By default, the maximum number of ND snooping dynamic binding entries to be learned by an interface is the same as the number of ND snooping entries supported by the device.

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Updated: 2019-04-01

Document ID: EDOC1000178410

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