Juniper JUNOSE 11.2.X BGP AND MPLS, Руководство по настройке

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an IPv6 unicast destination. For a general description of multicasting, see JunosE
Multicast Routing Configuration Guide .
• VPN IPv6—If you specify the VPN-IPv6 address family, you can configure the router to
provide IPv6 VPN services over an MPLS backbone. These VPNs are often referred to
as BGP/MPLS VPNs.
• L2VPN—If you specify the L2VPN address family, you can configure the PE router for
VPLS L2VPNs or VPWS L2VPNs to exchange layer 2 network layer reachability
information (NLRI) for all VPLS or VPWS instances. Optionally, you can use the
signaling keyword with the address-family command for the L2VPN address family
to specify BGP signaling of L2VPN reachability information. Currently, you can omit
the
signaling keyword with no adverse effects. For a description of VPLS, see
“Configuring VPLS” on page 589. For a description of VPWS, see “Configuring VPWS”
on page 651.
• VPLS—If you specify the VPLS address family, you can configure the router to exchange
layer 2 NLRI for a specified VPLS instance. For a description of VPLS, see “Configuring
VPLS” on page 589.
•
VPWS—If you specify the VPWS address family, you can configure the PE router to
exchange layer 2 NLRI for a specified VPWS instance. For a description of VPWS, see
“Configuring VPWS” on page 651.
As discussed in “Understanding BGP Command Scope” on page 18 , BGP configuration
commands fall into five categories. If you specify the multicast address family, from
within the Address Family Configuration mode you can issue the commands listed in
Table 7 on page 19 to configure parameters that affect the multicast address family
globally. You can issue the commands listed in Table 9 on page 21 to configure a peer
or peer group that you have activated in the multicast address family without affecting
those configuration parameters for any other address family within which the peer or
peer group is activated.
If you issue any of the commands listed in Table 8 on page 20 from within the default
IPv4 unicast address family to configure a peer or peer group, you can apply those
configuration values to the same entity in the multicast address family by activating the
peer or peer group in the multicast address family.
Example To add a peer to the multicast routing table, first add the peer to the unicast routing table,
and then copy it to the multicast routing table.
host1(config)# router bgp 22
host1(config-router)# neighbor 192.168.55.122 remote-as 33
host1(config-router)# address-family ipv4 multicast
host1(config-router-af) neighbor 192.168.55.122 activate
address-family
•
Use to configure the router to exchange IPv4 or IPv6 addresses by creating the specified
address family.
•
IPv4 addresses can be exchanged in unicast, multicast, or VPN mode. IPv6 addresses
can be exchanged in unicast mode.
151 Copyright © 2010, Juniper Networks, Inc.
Chapter 1: Configuring BGP Routing