export-rib
Syntax
export-rib routing-table-name;
Hierarchy Level
[edit logical-systems logical-system-name routing-instances routing-instance-name routing-options rib-groups group-name], [edit logical-systems logical-system-name routing-options rib-groups group-name], [edit routing-instances routing-instance-name routing-options rib-groups group-name], [edit routing-options rib-groups group-name]
Description
Specify the name of the routing table from which
Junos OS should export routing information. For any individual RIB
group, only one table can be specified in the export-rib statement.
The export-rib statement specifies the source table
from which routing information is advertised.
One common use of the export-rib statement is interdomain
routing. The export RIB is the table used when BGP extracts routes
to advertise to peers. In multicast interdomain routing, for example,
the export RIB is likely to be inet.2.
Another use of export-rib is dynamic route leaking
between the global routing table (inet.0) and a VRF routing table
(instance.inet.0). For example, you can use a
RIB group to copy routes learned in the VRF into the global routing
table, inet.0, or copy routes learned in inet.0 into a VRF. You define
the use of this RIB group in the VRF’s BGP configuration. In
a routing policy you can do dynamic filtering of routes. For instance,
you can use an import policy to only copy routes with certain communities
into the global routing table.
For example:
rib-groups {
rib-interface-routes-v4 {
import-rib [ inet.0 VRF.inet.0 ];
}
rib-import-VRF-routes-to-inet0-v4 {
export-rib VRF.inet.0;
import-rib [ VRF.inet.0 inet.0 ];
import-policy rib-import-VRF-routes-to-inet0-v4;
}
rib-import-inet0-routes-to-VRF-v4 {
export-rib inet.0;
import-rib [ inet.0 VRF.inet.0 ];
import-policy rib-import-inet0-routes-to-VRF-v4;
}
}
routing-options {
interface-routes {
rib-group {
inet rib-interface-routes-v4;
}
}
}
protocols {
bgp {
group iBGP-peers {
type internal;
family inet {
unicast {
rib-group rib-import-inet0-routes-to-VRF-v4;
}
}
}
}
}
routing-instances {
VRF {
routing-options {
interface-routes {
rib-group {
inet rib-interface-routes-v4;
}
}
}
protocols {
bgp {
group peersin-VRF {
family inet {
unicast {
rib-group rib-import-VRF-routes-to-inet0-v4;
}
}
}
}
}
}
}
Options
routing-table-name—Routing table group name.
Required Privilege Level
routing—To view this statement in the configuration.
routing-control—To add this statement to the configuration.
Release Information
Statement introduced before Junos OS Release 7.4.