vpn-target evpn (VPN instance IPv4 address family view)

Function

The vpn-target evpn command configures the VPN target extended community attribute for EVPN routes in the VPN instance IPv4 address family.

The undo vpn-target evpn command deletes the VPN target extended community attribute of EVPN routes in the VPN instance IPv4 address family.

By default, no VPN target extended community list is configured for EVPN routes in the VPN instance IPv4 address family.

Format

vpn-target { vpn-target } &<1-8> [ vrfRtType ] evpn

undo vpn-target { vpn-target } &<1-8> [ vrfRtType ] evpn

undo vpn-target all evpn

Parameters

Parameter	Description	Value
vpn-target	Specifies a VPN target to be configured for a VPN instance IPv4 address family.	The format of a VPN target can be as follows: 2-byte AS number:4-byte user-defined number, for example, 1:3. An AS number is an integer ranging from 0 to 65535, and a user-defined number is an integer ranging from 0 to 4294967295. The AS and user-defined numbers cannot be both 0s. This means that a VPN target cannot be 0:0. Integral 4-byte AS number:2-byte user-defined number, for example, 65537:3. An AS number is an integer ranging from 65536 to 4294967295, and a user-defined number is an integer ranging from 0 to 65535. 4-byte AS number in dotted notation:2-byte user-defined number, for example, 0.0:3 or 0.1:0. A 4-byte AS number in dotted notation is in the format of x.y, where x and y are integers ranging from 0 to 65535. A user-defined number is an integer ranging from 0 to 65535. The AS and user-defined numbers cannot be both 0s. This means that a VPN target cannot be 0.0:0. 32-bit IP address:2-byte user-defined number. For example, 192.168.122.15:1. An IP address ranges from 0.0.0.0 to 255.255.255.255, and a user-defined number is an integer ranging from 0 to 65535.
vrfRtType	Adds a VPN target to the VPN target list of a VPN instance IPv4 address family.	The value is an enumerated type: both: adds a VPN target to both the import and export VPN target lists of a VPN instance IPv4 address family. If both, export-extcommunity, and import-extcommunity are not configured in the vpn-target command, a VPN target is added to both lists by default. export-extcommunity: adds a VPN target to the export VPN target list of a VPN instance IPv4 address family. import-extcommunity: adds a VPN target to the import VPN target list of a VPN instance IPv4 address family.
all	Deletes all the VPN targets of a VPN instance IPv4 address family.	-

Parameter

Description

Value

vpn-target

Specifies a VPN target to be configured for a VPN instance IPv4 address family.

The format of a VPN target can be as follows:

2-byte AS number:4-byte user-defined number, for example, 1:3. An AS number is an integer ranging from 0 to 65535, and a user-defined number is an integer ranging from 0 to 4294967295. The AS and user-defined numbers cannot be both 0s. This means that a VPN target cannot be 0:0.
Integral 4-byte AS number:2-byte user-defined number, for example, 65537:3. An AS number is an integer ranging from 65536 to 4294967295, and a user-defined number is an integer ranging from 0 to 65535.
4-byte AS number in dotted notation:2-byte user-defined number, for example, 0.0:3 or 0.1:0. A 4-byte AS number in dotted notation is in the format of x.y, where x and y are integers ranging from 0 to 65535. A user-defined number is an integer ranging from 0 to 65535. The AS and user-defined numbers cannot be both 0s. This means that a VPN target cannot be 0.0:0.
32-bit IP address:2-byte user-defined number. For example, 192.168.122.15:1. An IP address ranges from 0.0.0.0 to 255.255.255.255, and a user-defined number is an integer ranging from 0 to 65535.

vrfRtType

Adds a VPN target to the VPN target list of a VPN instance IPv4 address family.

The value is an enumerated type:

both: adds a VPN target to both the import and export VPN target lists of a VPN instance IPv4 address family. If both, export-extcommunity, and import-extcommunity are not configured in the vpn-target command, a VPN target is added to both lists by default.
export-extcommunity: adds a VPN target to the export VPN target list of a VPN instance IPv4 address family.
import-extcommunity: adds a VPN target to the import VPN target list of a VPN instance IPv4 address family.

all

Deletes all the VPN targets of a VPN instance IPv4 address family.

Views

VPN instance IPv4 address family view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
l3vpn	write

Usage Guidelines

Usage Scenario

When advertising EVPN IP prefix routes to other PE peers, the local PE must carry all VPN targets in the export VPN target list configured for EVPN routes in the local VPN instance IPv4 address family. If the VPN targets carried in received IRB routes or IP prefix routes overlap with those in the import VPN targets list of EVPN routes in the local VPN instance IPv4 address family, only the IRB route or IP prefix route can be added to the routing table of the local VPN instance IPv4 address family.

Prerequisites

A route distinguisher (RD) has been configured using the route-distinguisher command.

Configuration Impact

If the vpn-target evpn command is not used, a PE does not install received IRB routes or IP prefix routes into the routing table of its VPN instance IPv4 address family.

After the undo vpn-target evpn command is run, all routes learned through IRB routes or IP prefix routes in the VPN instance address family are deleted.

Example

# Add 3:3 to the export VPN target list and 4:4 to the import VPN target list of EVPN routes in the VPN instance IPv4 address family.

<HUAWEI> system-view
[*HUAWEI] ip vpn-instance vrf1
[*HUAWEI-vpn-instance-vrf1] ipv4-family
[*HUAWEI-vpn-instance-vrf1-af-ipv4] route-distinguisher 100:1
[*HUAWEI-vpn-instance-vrf1-af-ipv4] vpn-target 3:3 export-extcommunity evpn
[*HUAWEI-vpn-instance-vrf1-af-ipv4] vpn-target 4:4 import-extcommunity evpn