Redistributing Routes Into Bgp; Figure 14: Redistributing Routes Into Bgp - Juniper JUNOSE SOFTWARE FOR E SERIES 11.3.X - BGP AND MPLS CONFIGURATION GUIDE 2010-10-12 Configuration Manual

Redistributing Routes into BGP

clear bgp ipv6 redistribution
clear ip bgp redistribution
Copyright © 2010, Juniper Networks, Inc.
The command is disabled by default.
Example
host2(config-router)#bgp advertise-best-external-to-internal
Use the no version to restore the default condition, wherein BGP selects one best route
for each destination from the complete set of routes; if the best route was received
from an internal peer, no route to the destination is advertised to the internal peers.
See bgp advertise-best-external-to-internal.
BGP can learn about routes from sources other than BGP updates from peers. Routes
known to other protocols can be redistributed into BGP. Similarly, routes manually
configured on a router—static routes—can be redistributed into BGP. After the routes are
redistributed, BGP advertises the routes. When you redistribute routes, BGP sets the
origin attribute for the route to Incomplete. See "Understanding the Origin Attribute" on
page 114 for more information about origins.
The following commands configure three static routes on router Boston and configure
router Boston to redistribute the static routes and routes from OSPF into BGP for the
network structure shown in Figure 14 on page 53:
host2(config)#ip route 172.30.0.0 255.255.0.0 192.168.10.12
host2(config)#ip route 172.16.8.0 255.255.248.0 10.211.5.7
host2(config)#ip route 192.168.4.0 255.255.254.0 10.14.147.2
host2(config)#router bgp 29
host2(config-router)#neighbor 10.1.1.2 remote-as 92
host2(config-router)#redistribute static
host2(config-router)#redistribute ospf

Figure 14: Redistributing Routes into BGP

Use to reapply policy to routes that have been redistributed into BGP.
This command takes effect immediately.
Chapter 1: Configuring BGP Routing
53