advertise-inactive
Syntax
advertise-inactive;
Hierarchy Level
[edit logical-systems logical-system-name protocols bgp], [edit logical-systems logical-system-name protocols bgp group group-name], [edit logical-systems logical-system-name protocols bgp group group-name neighbor address], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp group group-name], [edit logical-systems logical-system-name routing-instances routing-instance-name protocols bgp group group-name neighbor address], [edit protocols bgp], [edit protocols bgp group group-name], [edit protocols bgp group group-name neighbor address], [edit routing-instances routing-instance-name protocols bgp], [edit routing-instances routing-instance-name protocols bgp group group-name], [edit routing-instances routing-instance-name protocols bgp group group-name neighbor address]
Description
Configure the routing table to export to BGP the best route learned by BGP even if Junos OS did not select this route to be an active route.
One way to achieve multivendor compatibility is to include the advertise-inactive statement in the external BGP (EBGP) configuration.
By default, BGP stores the route information it receives from update
messages in the Junos OS routing table, and the routing table exports
only active routes into BGP, which BGP then advertises to its peers.
The advertise-inactive statement causes Junos OS to advertise
the best BGP route that is inactive because of IGP preference. When
you use the advertise-inactive statement, the Junos OS
device uses, for example, the OSPF route for forwarding, and the other
vendor’s device uses the EBGP route for forwarding. However,
from the perspective of an EBGP peer in a neighboring AS, both vendors’
devices appear to behave the same way.
When BGP advertises a network layer reachability information
(NLRI) with a label, and the advertised route resides in xxx.xxx.3
routing table such as inet.3, Junos OS automatically advertises such
inactive routes even if you have not configured the advertise-inactive statement.
The advertise-inactive statement does not help to advertise the
inactive route from the VRF when the router is configured as a route
reflector.
Default
By default, BGP stores the route information it receives from update messages in the Junos OS routing table, and the routing table exports only active routes into BGP, which BGP then advertises to its peers.
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.