evpn binding vpn-instance (Interface view)

Function

The evpn binding vpn-instance command binds a PE's interface to an EVPN instance.

The undo evpn binding vpn-instance command removes the binding relationship between a PE's interface and an EVPN instance.

By default, a PE's interface is a public network interface without being bound to any EVPN instance.

Format

evpn binding vpn-instance vpn-instance-name

undo evpn binding vpn-instance vpn-instance-name

Parameters

Parameter	Description	Value
vpn-instance-name	Specifies the name of an interface to be bound to an EVPN instance.	The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Parameter

Description

Value

vpn-instance-name

Specifies the name of an interface to be bound to an EVPN instance.

The value is a string of 1 to 31 case-sensitive characters, spaces not supported. When double quotation marks are used around the string, spaces are allowed in the string.

Views

100ge sub-interface view, 100GE interface view, 10GE sub-interface view, 10GE interface view, 200GE sub-interface view, 25GE sub-interface view, 400GE sub-interface view, 400GE interface view, 40GE sub-interface view, 40GE interface view, 50GE sub-interface view, Eth-Trunk sub-interface view, Eth-Trunk interface view, GE optical interface view, GE sub-interface view, GE electrical interface view, Global VE sub-interface view, PW-VE sub-interface view, VE sub-interface view, Management interface view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
bgp	write

Usage Guidelines

Usage Scenario

After an EVPN instance is created on a PE, the PE's interface connecting to a CE must be bound to the EVPN instance.

Prerequisites

A route distinguisher (RD) has been configured in the view of the EVPN instance to be bound.

Configuration Impact

After an interface is bound to or removed from an EVPN instance, the Layer 3 configurations will be cleared.

Precautions

An EVPN instance has been bound to the Eth-Trunk interface. Running the evpn binding vpn-instance command on the Eth-Trunk interface to bind another EVPN instance will overwrite the current binding relationship.

The active-active mode of an accessed service depends on both the E-Trunk mode and EVPN instance mode. If the Eth-Trunk interfaces of dual-homed PEs are both added to force-master E-Trunks and the Eth-Trunk interfaces are bound to active-active EVPN instances, services are accessed in active-active mode. If one of the Eth-Trunk interfaces of dual-homed PEs or both of them are not added to force-master E-Trunks and the Eth-Trunk interfaces are bound to single-active EVPN instances, services are accessed in single-active mode. If the modes of E-Trunks to which Eth-Trunk interfaces are added do not match the modes of the EVPN instances bound to the Eth-Trunk interfaces, packet loss may occur in the accessed services.

Example

# Bind GE interface to the EVPN instance named evrf1.

<HUAWEI> system-view
[~HUAWEI] evpn vpn-instance evrf1
[*HUAWEI-evpn-instance-evrf1] route-distinguisher 100:1
[*HUAWEI-evpn-instance-evrf1] vpn-target 1:1
[*HUAWEI-evpn-instance-evrf1] quit
[*HUAWEI] interface GigabitEthernet 0/1/0
[*HUAWEI-GigabitEthernet0/1/0] evpn binding vpn-instance evrf1