vpn-target (EVPN instance view)

Function

The vpn-target command configures the export or import VPN target extended community attribute for an EVPN instance address family.

The undo vpn-target command deletes the VPN target extended community attribute for the EVPN instance address family.

By default, no export or import VPN target extended community attribute list is configured for the EVPN instance address family.

Format

vpn-target vpn-target &<1-8> [ both | export-extcommunity | import-extcommunity ]

undo vpn-target { all | vpn-target &<1-8> [ both | export-extcommunity | import-extcommunity ] }

Parameters

Parameter	Description	Value
vpn-target	Adds a VPN target to the VPN target extended community attribute list of the EVPN instance address family. The forms of VPN targets are as follows: 2-byte AS number: 4-byte user-defined number, for example, 1:3. The AS number ranges from 0 to 65535, and the user-defined number ranges from 0 to 4294967295. The AS number and user-defined number cannot be both 0s. That is, a VPN target cannot be 0:0. IPv4 address: 2-byte user-defined number, for example, 192.168.122.15:1. The IP address ranges from 0.0.0.0 to 255.255.255.255, and the user-defined number ranges from 0 to 65535. Integral 4-byte AS number: 2-byte user-defined number, for example, 65537:3. The AS number ranges from 65536 to 4294967295, and the user-defined number ranges from 0 to 65535. The AS number and user-defined number cannot be both 0s. That is, a VPN target cannot be 0:0. 4-byte AS number in dotted notation: 2-byte user-defined number, for example, 0.0:3 or 0.1:0. The 4-byte AS number in dotted notation is in the format of x.y, where x and y are integers that range from 0 to 65535, and the user-defined number ranges from 0 to 65535. The AS number and user-defined number cannot be both 0s. That is, a VPN target cannot be 0:0.0.	-
both	Adds a VPN target to the import or export VPN target extended community attribute list of the EVPN instance address family. If keywords both, export-extcommunity, and import-extcommunity are not specified, both is used by default.	-
export-extcommunity	Adds a VPN target to the export VPN target extended community attribute list of the EVPN instance address family.	-
import-extcommunity	Adds a VPN target to the import VPN target extended community attribute list of the EVPN instance address family.	-
all	Deletes all the VPN targets of the EVPN instance address family.	-

Views

EVPN instance view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

When a local device advertises EVPN routes to other devices, the EVPN routes carry all VPN target attributes in the export VPN target attribute list of the local EVPN instance. Only when the VPN target attribute carried in an EVPN route is included in the import VPN target attribute list, the route can be added to the EVPN instance routing table.

You can run the vpn-target command to add VPN targets to the VPN target extended community attribute list of an EVPN instance through more than one time. A maximum of eight VPN targets can be added at one time. To configure more VPN targets for an EVPN instance, you can run the vpn-target command multiple times.

Prerequisites

The RD of the EVPN instance has been configured by running the route-distinguisher command.

Precautions

If this command is not run, all received EVPN routes cannot be added to the local EVPN instance routing table.

If all the VPN targets of an EVPN instance are deleted using the undo vpn-target command, all routes learned by the EVPN instance are deleted.

Example

# Add 3:3 to the export VPN target extended community attribute list and 4:4 to the import VPN target extended community attribute list of EVPN instance evn3.

<HUAWEI> system-view
[HUAWEI] evpn vpn-instance evn3 bd-mode
[HUAWEI-evpn-instance-evn3] route-distinguisher 100:1
[HUAWEI-evpn-instance-evn3] vpn-target 3:3 export-extcommunity
[HUAWEI-evpn-instance-evn3] vpn-target 4:4 import-extcommunity