Multiprotocol Border Gateway Protocol (MP-BGP) is an extension of Border Gateway Protocol (BGP) that enables the exchange of routing information for multiple protocols. MP-BGP is used in large-scale networks where multiple protocols, such as IPv4, IPv6, and multicast, are used, and it provides a scalable solution for exchanging routing information across different protocols.
Benefits of MP-BGP include:
- Scalability: MP-BGP provides a scalable solution for exchanging routing information across multiple protocols.
- Flexibility: MP-BGP enables the use of different routing protocols for different address families.
- Efficiency: MP-BGP reduces the amount of routing information that needs to be exchanged between routers, improving network efficiency.
Basic MP-BGP Configuration
- Enable MP-BGP on the router- Enter the router command with autonomous system number, then specify address family MP-BGP will be used for.
router bgp AS#
address-family [ipv4 | ipv6 | multicast]
- Configure peering sessions. Specify the neighbor(s) and their AS#.
neighbor IP address remote-as AS#
- Configure Address Family and Advertise network prefixes
Network network_address
Neighbor IP_address activate