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Configuration Guide - IP Service

CloudEngine 12800 and 12800E V200R005C00

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 6PE

Configuring 6PE

You can configure IPv6 provider edge (6PE) to interconnect scattered IPv6 networks over existing IPv4/MPLS backbone networks.

Pre-configuration Tasks

Before configuring 6PE, complete the following tasks:

  • Configuring the IPv4/IPv6 dual stack

    Configure IP addresses for interfaces on the border device (6PE device) that connects an IPv4 network and an IPv6 network.
  • Configuring basic MPLS functions

    For details, see the CloudEngine 12800 and 12800E Series Switches Configuration Guide - MPLS.

  • Configuring a routing protocol to ensure that there are reachable IPv4 routes between 6PE devices

  • Configuring a 6PE-to-CE route


IPv6 provider edge (6PE) is an IPv4-to-IPv6 transition technology. You can configure 6PE to interconnect scattered IPv6 networks over existing IPv4/MPLS backbone networks.


  1. Run the system-view command to enter the system view
  2. Run the bgp { as-number-plain | as-number-dot } command to enter the BGP view.
  3. Run the peer ipv4-address as-number as-number command to set the IP address of the peer and the number of the AS where the peer resides.
  4. Run the peer ipv4-address connect-interface interface-type interface-number command to specify the interface connected to the peer PE.
  5. Run the ipv6-family command to enter the BGP-IPv6 unicast address family view.
  6. Run the peer ipv4-address enable command to enable the 6PE peer.
  7. Run the peer peer-ipv4-address label-route-capability command to enable the labeled route capability of the 6PE.
  8. (Optional) Run the apply-label explicit-null command to enable 6PE routes to share the explicit null label.

    The per-route per-label mode occupies too much forwarding resources. To prevent packet loss caused by the shortage of forwarding resources, you are advised to enable 6PE routes to share the explicit null label.

  9. Run the commit command to commit the configuration.

Verifying the Configuration

  • Run the display mpls lsp command to view LSP information.

  • Run the display bgp ipv6 routing-table command to view IPv6 BGP route information.

Updated: 2019-04-18

Document ID: EDOC1100039535

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