R3303-HP HSR6800 Routers IP Multicast Configuration Guide

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Configuring IPv6 MBGP
This chapter covers configuration tasks related to multiprotocol BGP for IPv6 multicast. For information
about BGP and IPv6 BGP, see Layer 3—IP Routing Configuration Guide.
Overview
IETF defined Multiprotocol BGP (MP-BGP) to enable BGP to carry routing information for multiple
network-layer protocols.
For an IPv6 network, the topology for IPv6 multicast might be different from that for IPv6 unicast. To
distinguish them, the MP-BGP enables BGP to carry the IPv6 unicast Network Layer Reachability
Information (NLRI) and IPv6 multicast NLRI separately, and the multicast NLRI performs an RPF check
exclusively. In this way, route selection for a destination through the IPv6 unicast routing table and
through the IPv6 multicast routing table have different results, ensuring consistent unicast forwarding and
normal multicast between domains. For information about RPF, see "Configuring multicast routing and
forwarding."
MP-BGP is defined in RFC 2858 (Multiprotocol Extensions for BGP-4). The application of MP-BGP on IPv6
multicast is called IPv6 Multicast BGP (IPv6 MBGP).
IPv6 MBGP configuration task list
Task Remarks
Configuring basic IPv6 MBGP
functions
Configuring an IPv6 MBGP peer Required.
Configuring a preferred value for routes from a peer
or a peer group
Optional.
Controlling route distribution and
reception
Injecting a local IPv6 MBGP route Optional.
Configuring IPv6 MBGP route redistribution Optional.
Configuring IPv6 MBGP route summarization Optional.
Advertising a default route to a peer or peer group Optional.
Configuring outbound IPv6 MBGP route filtering Optional.
Configuring inbound IPv6 MBGP route filtering Optional.
Configuring IPv6 MBGP route dampening Optional.
Configuring IPv6 MBGP route
attributes
Configuring IPv6 MBGP route preferences
Optional.
Configuring the default local preference
Configuring the MED attribute
Configuring the NEXT_HOP attribute Optional.
Configuring the AS_PATH attribute Optional.
Optimizing IPv6 MBGP networks Configuring IPv6 MBGP soft reset Optional.