Multicast Services Over Vpns; Configuring Bgp Vpn Services; Vrf Configuration Tasks - Juniper BGP - CONFIGURATION GUIDE V 11.1.X Configuration Manual

JUNOSe 11.1.x BGP and MPLS Configuration Guide

Multicast Services over VPNs

For information on VPN multicast services, see Creating Multicast VPNs in the JUNOSe
Multicast Routing Configuration Guide.

Configuring BGP VPN Services

To configure a router to provide BGP VPN services, you must perform some tasks
once per PE router and some tasks for each VRF on the PE router.

VRF Configuration Tasks

To configure a VRF to provide BGP VPN services:
1.
2.
3.
4.
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Multicast Services over VPNs
Use to set the maximum number of received external BGP best paths allowed
for route-target signaling.
Specify a value in the range 1–255; the default value is 1.
This command takes effect immediately; it does not bounce the session.
This command applies to only the route-target address family.
Example 1
host1(config-router)#external-paths 45
Example 2
host1:vr1(config-router-af)#external-paths 45
Use the no version to restore the default value, 1.
See external-paths.
Create the VRF.
host1(config)#virtual-router vr1
host1:vr1(config)#ip vrf vrfA
Assign a route distinguisher to the VRF.
host1:vr1(config-vrf)#rd 100:100
Set the route-target import and route-target export lists for the VRF.
host1:vr1(config-vrf)#route-target import 100:1
host1:vr1(config-vrf)#route-target export 100:1
(Optional) Set import and export maps for the VRF.
host1:vr1(config-vrf)#import map Another-route-map
host1:vr1(config-vrf)#export map A-route-map
host1:vr1(config-vrf)#exit