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Configuration Guide - IP Service
S1720, S2700, S5700, and S6720 V200R011C10

This document describes the configurations of IP Service, including IP address, ARP, DHCP, DHCP policy VLAN, DNS, mDNS gateway, mDNS relay, UDP Helper, IP performance optimization, IPv6, DHCPv6, IPv6 DNS, IPv6 over IPv4 tunnel, and IPv4 over IPv6 tunnel.

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(Optional) Optimizing IPv4 over IPv6 Tunnel Performance

(Optional) Optimizing IPv4 over IPv6 Tunnel Performance


You can perform one or more of the following configurations to optimize IPv4 over IPv6 tunnel performance.


  1. Run system-view

    The system view is displayed.

  2. Run interface tunnel interface-number

    The tunnel interface view is displayed.

  3. Run tunnel ipv4-ipv6 encapsulation-limit encapsulation-limit

    The maximum encapsulation count of an IPv6 packet is specified.

    By default, an IPv4-over-IPv6 packet can be encapsulated four times.

  4. Run tunnel ipv4-ipv6 flow-label label-value

    The flow label value is set.

    By default, the flow label value is 0.

  5. Run tunnel ipv4-ipv6 hop-limit hop-limit

    The hop limit of the IPv6 tunnel packets is set.

    By default, the hop limit of the IPv6 tunnel packets is 64.

  6. Run tunnel ipv4-ipv6 traffic-class { original | class-value }

    The traffic class is set.

    By default, the traffic class is 0.

Updated: 2020-02-26

Document ID: EDOC1000178170

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