Configuring Ipv6 Bgp; Ipv6 Bgp Overview; Ipv6 Bgp Configuration Task List - HPE FlexNetwork HSR6800 Configuration Manual

Configuring IPv6 BGP

This chapter describes only configuration for IPv6 BGP. For BGP-related information, see
"Configuring BGP."

IPv6 BGP overview

BGP-4 can only carry IPv4 routing information.
To support multiple network layer protocols, IETF extended BGP-4 by introducing Multiprotocol
Border Gateway Protocol (MP-BGP). MP-BGP for IPv6 is called "IPv6 BGP" for short.
IPv6 BGP puts IPv6 network layer information into the attributes of Network Layer Reachability
Information (NLRI) and NEXT_HOP.
The NLRI attribute of IPv6 BGP involves the following:
•
MP_REACH_NLRI—Multiprotocol Reachable NLRI, for advertising reachable route and next
hop information.
•
MP_UNREACH_NLRI—Multiprotocol Unreachable NLRI, for withdrawal of unreachable
routes.
The NEXT_HOP attribute of IPv6 BGP is identified by an IPv6 unicast address or IPv6 local link
address.
IPv6 BGP has the same messaging and routing mechanisms as BGP.

IPv6 BGP configuration task list

Task
Configuring IPv6 BGP basic
functions
Controlling route distribution
and reception
Specifying an IPv6 BGP peer
Injecting a local IPv6 route
Configuring a preferred value for routes from a
peer or peer group
Specifying the source interface for establishing
TCP connections
Allowing the establishment of an indirect EBGP
connection
Configuring a description for an IPv6 peer or peer
group
Disabling session establishment to an IPv6 peer
or peer group
Logging IPv6 peer or peer group state changes
Configuring IPv6 BGP route redistribution
Configuring IPv6 BGP route summarization
Advertising a default route to an IPv6 peer or peer
group
Configuring outbound route filtering
Configuring inbound route filtering
352
Remarks
Required.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.
Optional.