Configuring BGP Signaling for VPLS
This section describes one way to configure BGP signaling for VPLS, but does not
provide complete details about configuring BGP and BGP/MPLS VPNs.
Table 81 on page 600 lists the commands discussed in this section to configure BGP
signaling for VPLS.
Table 81: Commands to Configure BGP Signaling for VPLS
neighbor next-hop-selfaddress-family l2vpn
neighbor remote-asaddress-family vpls
neighbor send-communityexit-address-family
neighbor update-sourceip router-id
router bgpneighbor activate
To configure BGP signaling for VPLS on the PE router:
1. Enable the BGP routing protocol on the PE router and specify the local AS; that
is, the AS to which this BGP speaker belongs.
host1(config)#router bgp 100
The AS number identifies the PE router to other BGP routers.
2. Configure the PE-to-PE BGP session by first adding an entry to the BGP neighbor
table.
host1(config-router)#neighbor 10.4.4.4 remote-as 100
3. Use neighbor commands to specify the peers to which BGP advertises routes.
This example configures only the update-source and next-hop-self attributes.
The update-source attribute allows the BGP session to use the IP address of a
specific operational interface as the update source address for TCP connections.
the next-hop-self attribute forces the BGP speaker to report itself as the next hop
for an advertised route that it learned from a neighbor.
host1(config-router)#neighbor 10.4.4.4 update-source loopback 0
host1(config-router)#neighbor 10.4.4.4 next-hop-self
4. Create the L2VPN address family to configure the router to exchange layer 2
NLRI for all VPLS instances.
host1(config-router)#address-family l2vpn signaling
5. Activate the PE-to-PE session in the L2VPN address family by specifying neighbors
that exchange routes from within the current address family.
600 ■ Configuring BGP Signaling for VPLS
JUNOSe 11.1.x BGP and MPLS Configuration Guide
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