Juniper BGP, Configuration Manual

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Use to set the maximum number of received external BGP best paths allowed
for route-target signaling.
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Specify a value in the range 1–255; the default value is 1.
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This command takes effect immediately; it does not bounce the session.
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This command applies to only the route-target address family.
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Example 1
host1(config-router)# external-paths 45
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Example 2
host1:vr1(config-router-af)# external-paths 45
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Use the no version to restore the default value, 1.
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See external-paths.
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.
Create the VRF.
host1(config)# virtual-router vr1
host1:vr1(config)# ip vrf vrfA
2.
Assign a route distinguisher to the VRF.
host1:vr1(config-vrf)# rd 100:100
3.
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
4.
(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
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Multicast Services over VPNs
JUNOSe 11.1.x BGP and MPLS Configuration Guide