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Configuration Guide - VPN 01

NE05E and NE08E V300R003C10SPC500

This is NE05E and NE08E V300R003C10SPC500 Configuration Guide - VPN
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Configuring VLAN-based DF Election

Configuring VLAN-based DF Election

In CE dual-homing networking, to balance the broadcast, unknown unicast, and multicast (BUM) traffic between the CE and PEs, you can configure virtual local area network (VLAN)-based designated forwarder (DF) election.

Usage Scenario

In CE dual-homing networking, the following conditions must be met to balance BUM traffic:
  1. An Eth-Trunk sub-interface is bound to an EVPN instance created on each PE.

  2. VLAN-based DF election is configured.

For details on how to meet the first condition, see Eth-Trunk Interface Configuration. This section describes how to configure VLAN-based DF election.

Pre-configuration Tasks

Before configuring VLAN-based DF election, bind an Eth-Trunk sub-interface to an EVPN instance and configure EVPN Functions.

Perform the following steps on each PE with the EVPN instance created:

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run evpn

    The global EVPN configuration view is created and displayed.

  3. Run df-election type vlan

    VLAN-based DF election is configured.

  4. Run commit

    The configuration is committed.

Checking the Configurations

After configuring VLAN-based DF election, check the configurations.

# Run the display evpn vpn-instance name vpn-instance-name df result command to view the DF election result in the EVPN instance. The following example uses the command output for the EVPN instance named evpna.

<HUAWEI> display evpn vpn-instance name evpna df result
ESI Count: 1

ESI: 0000.1111.2222.1111.1111

 Eth-Trunk10.1:
  Current State: IFSTATE_UP
  DF Result    : Backup
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Updated: 2019-01-14

Document ID: EDOC1100058925

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