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Table of Contents Expand all

play_arrow Features Common to EVPN-VXLAN, EVPN-MPLS, and EVPN-VPWS
- play_arrow Configuring Interfaces
  - VLAN ID Ranges and Lists in an EVPN Environment
- play_arrow MAC Address Features with EVPN Networks
- play_arrow Configuring Routing Instances for EVPN
- play_arrow Configuring Route Targets
- play_arrow Routing Policies for EVPN
  - Routing policies for EVPN
  - Example: Using Policy Filters to Filter EVPN Routes
- play_arrow Layer 3 Gateways with Integrated Routing and Bridging for EVPN Overlays
  - Understanding the MAC Addresses For a Default Virtual Gateway in an EVPN-VXLAN or EVPN-MPLS Overlay Network
- play_arrow EVPN Multihoming
- play_arrow Link States and Network Isolation Conditions in EVPN Networks
- play_arrow EVPN Proxy ARP and ARP Suppression, and NDP and NDP Suppression
  - EVPN Proxy ARP and ARP Suppression, and Proxy NDP and NDP Suppression
  - ARP and NDP Request with a proxy MAC address
- play_arrow Configuring DHCP Relay Agents
  - DHCP Relay Agent in EVPN-MPLS Network
  - DHCP Relay Agent over EVPN-VXLAN
- play_arrow High Availability in EVPN
- play_arrow Monitoring EVPN Networks
  - Connectivity Fault Management Support for EVPN and Layer 2 VPN Overview
  - Configure a MEP to Generate and Respond to CFM Protocol Messages
- play_arrow Layer 2 Control Protocol Transparency
  - Layer 2 Control Protocol Transparency for EVPN
play_arrow EVPN-VXLAN
- play_arrow Overview
- play_arrow Configuring EVPN-VXLAN Interfaces
- play_arrow Configuring VLAN-Aware Bundle Services, VLAN-Based Services, and Virtual Switch Support
- play_arrow Load Balancing with EVPN-VXLAN Multihoming
  - Dynamic Load Balancing in an EVPN-VXLAN Network
  - Fast Reroute for Egress Link Protection with EVPN-VXLAN Multihoming
- play_arrow Setting Up a Layer 3 VXLAN Gateway
- play_arrow Configuring an EVPN-VXLAN Centrally-Routed Bridged Overlay
  - Example: Configure an EVPN-VXLAN Centrally-Routed Bridging Fabric
  - Example: Configure an EVPN-VXLAN Centrally-Routed Bridging Fabric Using MX Routers as Spines
- play_arrow Configuring an EVPN-VXLAN Edge-Routed Bridging Overlay
- play_arrow IPv6 Underlay for VXLAN Overlays
  - EVPN-VXLAN with an IPv6 Underlay
  - Example: Configure an IPv6 Underlay for Layer 2 VXLAN Gateway Leaf Devices
- play_arrow Multicast Features with EVPN-VXLAN
- play_arrow Configuring the Tunneling of Q-in-Q Traffic
  - Examples: Tunneling Q-in-Q Traffic in an EVPN-VXLAN Overlay Network
- play_arrow Tunnel Traffic Inspection on SRX Series Devices
  - Tunnel Inspection for EVPN-VXLAN by SRX Series Devices
- play_arrow Fault Detection and Isolation in EVPN-VXLAN Fabrics
play_arrow EVPN-MPLS
- play_arrow Overview
- play_arrow Convergence in an EVPN MPLS Network
  - Convergence in a Multihomed EVPN-MPLS Network
- play_arrow Pseudowire Termination at an EVPN
- play_arrow Configuring the Distribution of Routes
- play_arrow Configuring VLAN Services and Virtual Switch Support
- play_arrow Configuring Integrated Bridging and Routing
- play_arrow Configuring IGMP or MLD Snooping with EVPN-MPLS
play_arrow EVPN E-LAN Services
play_arrow EVPN-VPWS
- play_arrow Configuring VPWS Service with EVPN Mechanisms
play_arrow EVPN-ETREE
- play_arrow Overview
  - EVPN-ETREE Overview
- play_arrow Configuring EVPN-ETREE
  - Example: Configuring EVPN E-Tree Service
play_arrow Using EVPN for Interconnection
- play_arrow Interconnecting VXLAN Data Centers With EVPN
  - VXLAN Data Center Interconnect Using EVPN Overview
  - Example: Configuring VXLAN Data Center Interconnect Using EVPN
- play_arrow Interconnecting EVPN-VXLAN Data Centers Through an EVPN-MPLS WAN
- play_arrow Extending a Junos Fusion Enterprise Using EVPN-MPLS
play_arrow PBB-EVPN
- play_arrow Configuring PBB-EVPN Integration
- play_arrow Configuring MAC Pinning for PBB-EVPNs
  - PBB-EVPN MAC Pinning Overview
  - Configuring PBB-EVPN MAC Pinning
play_arrow EVPN Standards
- play_arrow Supported EVPN Standards
  - Supported EVPN Standards
play_arrow VXLAN-Only Features
- play_arrow Flexible VXLAN Tunnels
  - Understanding Programmable Flexible VXLAN Tunnels
- play_arrow Static VXLAN
  - Static VXLAN
play_arrow Configuration Statements and Operational Commands
- Junos CLI Reference Overview

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English

Example: Configuring VNI Route Targets Automatically

date_range 20-Dec-24

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This example shows how to automatically derive route targets for multiple VNIs in an EVPN-VXLAN topology.

Requirements

This example uses the following hardware and software components:

A QFX Series switch.
Junos OS version 15.1X53-D30

Overview

You can configure the vrf-target statement with the auto option to automatically derives route targets in a routing instance. Devices auto-derive route targets only for EVPN Type 2 and Type 3 routes. As a result, in some cases you must also manually configure route targets for other EVPN route types such as Type 1 (in L2 routing instances) or Type 5 (in L3 routing instances). See Example: Configuring VNI Route Targets Manually for manual route target configuration examples.

You can also manually set specific route targets for individual virtual network identifiers (VNIs) if you configure the vrf-target statement at the [edit <routing-instances name> protocols evpn vni-options vni vni] hierarchy level. Like auto-derived route targets, VNI level route targets apply only to EVPN Type 2 and Type 3 routes. See Example: Configuring VNI Route Targets Manually and Example: Configuring VNI Route Targets Automatically with Manual Override for VNI-level route target configuration examples.

In this example we show how to configure auto-derived route targets for EVPN Type 2 and Type 3 routes for all VNIs in an EVPN instance.

Note:

We also include configuring a route target manually to support EVPN Type 1 routes in the instance.

Configuration

To configure the vrf-target statement with the auto option, perform these tasks:

Configuring VNI Route Target Automatic Derivation
Results

Configuring VNI Route Target Automatic Derivation

Step-by-Step Procedure

To configure the automatic derivation of VNI route targets:

At the [switch-options] hierarchy level, configure the vtep-source-interface, and route-distiguisher statements. Then configure the vrf-import statement with a policy that will be configured in a later step. Next, configure the vrf-target statement with a target and the auto option. Type 1 EVPN routes will use the route target you configure under vrf-target. Type 2 and Type 3 EVPN routes will use the auto-derived route target for export and import for all VNIs.
```
[edit switch-options]
user@switch# set vtep-source-interface lo0.0
user@switch# set route-distinguisher 192.0.2.11:1
user@switch# set vrf-import import-policy
user@switch# set vrf-target target:1111:11
user@switch# set vrf-target auto
```
At the [evpn] hierarchy level, configure the encapsulation and extended-vni-list statements. For the purposes of this example, the extended-vni-list statement will be configured with all, to apply automatic route targets to all VNIs.
```
[edit protocols evpn]
user@switch# set encapsulation vxlan
user@switch# set extended-vni-list all
```
Configure a community at the [edit policy-options] hierarchy level named comglobal. Configure an import policy named import-policy at the [edit policy-options policy-statement] hierachy level. This community and this policy function as an import filter that accepts routes with the auto-derived route target. You apply the policy in step 1.
```
[edit policy-options]
user@switch# set community comglobal members target:1111:11
```
```
[edit policy-options policy-statement import-policy]
user@switch# set term 1 from community comglobal
user@switch# set term 1 then accept
user@switch# set term 100 then reject
```

Results

Use the show command to verify the results of your configuration.

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user@switch> show configuration switch-options
vtep-source-interface lo0.0;
route-distinguisher 192.0.2.11:1;
vrf-import imp;
vrf-target {
    target:1111:11;
    auto;
}

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user@switch> show configuration protocols evpn
encapsulation vxlan;
extended-vni-list all;

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user@switch> show configuration policy-options community comglobal
members target:1111:11;

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user@switch> show configuration policy-options policy-statement import-policy
term 1{
    from community [ comglobal ];
    then accept;
}
term 100 {
    then reject;
}

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Example: Configuring VNI Route Targets Automatically

Requirements

Overview

Configuration

Configuring VNI Route Target Automatic Derivation

Step-by-Step Procedure

Results

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EVPN User Guide

ON THIS PAGE

Example: Configuring VNI Route Targets Automatically

Requirements

Overview

Configuration

Configuring VNI Route Target Automatic Derivation

Step-by-Step Procedure

Results

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