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Configuration Guide - IP Service

CloudEngine 8800, 7800, 6800, and 5800 V200R003C00

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DNS, IP performance optimization, IPv6, DHCPv6, and IPv6 DNS.
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Configuring the Hash Mode of the Layer 3 Forwarding Table

Configuring the Hash Mode of the Layer 3 Forwarding Table

Context

When planned multicast addresses cause hash conflicts, configure the hash mode of the Layer 3 forwarding table to reduce hash conflicts.

NOTE:

After configuring the hash mode of the Layer 3 forwarding table, restart the device to make the configuration take effect.

The CE6870EI, CE6875EI, and CE6880EI do not support this function.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Configure the hash mode of the Layer 3 forwarding table on the device.

    On the CE8800, CE7800, and CE6800 series switches, run assign forward layer-3 hash { crc32-upper | crc32-lower | lsb | crc16-upper | crc16-lower }

    The hash mode of the Layer 3 forwarding table is configured.

    On the CE5800 series switches, run assign forward layer-3 hash { crc32-upper | crc32-lower | crc16 }

    The hash mode of the Layer 3 forwarding table is configured.

    By default, the hash mode of the Layer 3 forwarding table is crc32-lower.

  3. Run commit

    The configuration is committed.

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Updated: 2019-05-08

Document ID: EDOC1100004354

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