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Configuration Guide - Security

S1720, S2700, S5700, and S6720 V200R011C10

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, URPF, keychain, MPAC, separating the management plane from the service plane, security risks, PKI.
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Why Cannot a DAI-enabled Switch Forward Valid ARP Packets at Line Rate?

Why Cannot a DAI-enabled Switch Forward Valid ARP Packets at Line Rate?

In earlier versions of V200R001, a DAI-enabled switch checks ARP packets based on ACL rules delivered to the chip. Therefore, packets are directly forwarded at line rate. In V200R001 and later versions, the DAI-enabled switch checks ARP packets and forwards valid ARP packets using software. The forwarding rate depends on the CIR value of the ARP packet and CPU usage.

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Updated: 2019-03-28

Document ID: EDOC1000178177

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