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in the parent VR that is used for BGP peering with the CE router. To achieve this

configuration, you must do both of the following:

1. In the parent VR, create a shared IP interface for the PE-CE interface and point a

static route to the loopback of the CE router to the shared interface.

2. Use a global import map in the VRF to import into the VRF the route to the loopback

interface in the parent VR.

Figure 104: BGP Session Between CE Router and Parent VR

The following commands configure a shared IP interface in the parent VR and point a

static route for the loopback in the CE router to it:

host1(config)#virtual-router pe1

host1:pe1(config)#interface ip ce1-cust

host1:pe1(config-if)#ip share-interface atm2/0.1

host1:pe1(config-if)#ip address 10.1.1.3 255.255.255.255

host1:pe1(config-if)#exit

host1:pe1(config)#ip route 10.4.4.4 255.255.255.255 ip ce1-cust

The following commands make the loopback in the parent VR reachable from the VRF

by means of a global import map:

host1(config)#virtual-router pe1

host1:pe1(config)#prefix-list VRloop permit 10.2.2.2/32

host1:pe1(config)#route-map globimaploop

host1:pe1(config-route-map)#match ip address prefix-list VRloop

host1:pe1(config-route-map)#exit

host1:pe1(config)#ip vrf pe11

host1:pe1(config-vrf)#rd 100:1

host1:pe1(config-vrf)#route-target both 100:1

host1:pe1(config-vrf)#global import map globimaploop

The following commands create a BGP session between the CE router and the parent

VR.

On host 1, VR PE 1:

JunosE 11.2.x BGP and MPLS Configuration Guide

Juniper JUNOSE 11.2.X BGP AND MPLS User Manual

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