Juniper ACX1000 Configuration Manual page 879

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To display the routes in the
routing-instance-name.inet.0
inet.3 —Stores all MPLS routes learned from LDP and RSVP signaling done for VPN
traffic. The routing table stores the MPLS routes only if the
option is not enabled.
For VPN routes to be resolved properly, the
PE routers in the VPN.
To display the routes in the
inet.0 —Stores routes learned by the IBGP sessions between the PE routers. To provide
Internet access to the VPN sites, configure the
table to contain a default route to the
To display the routes in the
The following routing policies, which are defined in VRF import and export statements,
are specific to VRF tables.
Import policy—Applied to VPN-IPv4 routes learned from another PE router to determine
whether the route should be added to the PE router's
routing instance on a PE router has a VRF import policy.
Export policy—Applied to VPN-IPv4 routes that are announced to other PE routers.
The VPN-IPv4 routes are IPv4 routes that have been announced by locally connected
CE routers.
VPN route processing differs from normal BGP route processing in one way. In BGP, routes
are accepted if they are not explicitly rejected by import policy. However, because many
more VPN routes are expected, the Junos OS does not accept (and hence store) VPN
routes unless the route matches at least one VRF import policy. If no VRF import policy
explicitly accepts the route, it is discarded and not even stored in the
As a result, if a VPN change occurs on a PE router—such as adding a new VRF table or
changing a VRF import policy—the PE router sends a BGP route refresh message to the
other PE routers (or to the route reflector if this is part of the VPN topology) to retrieve
all VPN routes so they can be reevaluated to determine whether they should be kept or
discarded.
IGP Shortcuts and VPNs
routing-instance-name.inet.0
command.
inet.3 table must contain routes to all the
table, use the
inet.3 show route table inet.3
routing-instance-name.inet.0
routing table.
inet.0
table, use the
inet.0 show route table inet.0
Chapter 26: Configuring Layer 3 VPNs
table, use the
show route table
traffic-engineering bgp-igp
command.
routing
command.
bgp.l3vpn.0 routing table. Each
bgp.l3vpn.0 table.
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