Multiprotocol Extensions for BGP (MBGP or MP-BGP), sometimes referred to as Multiprotocol BGP or Multicast BGP and defined in IETF RFC 4760,[1] is an extension to Border Gateway Protocol (BGP) that allows different types of addresses (known as address families) to be distributed in parallel. Whereas standard BGP supports only IPv4 unicast addresses, Multiprotocol BGP supports IPv4 and IPv6 addresses and it supports unicast and multicast variants of each. Multiprotocol BGP allows information about the topology of IP multicast-capable routers to be exchanged separately from the topology of normal IPv4 unicast routers. Thus, it allows a multicast routing topology different from the unicast routing topology. Although MBGP enables the exchange of inter-domain multicast routing information, other protocols such as the Protocol Independent Multicast family are needed to build trees and forward multicast traffic.
As an enhancement of BGP-4, MP-BGP provides routing information for various protocols, such as IPv6 (BGP4+) and multicast:
MP-BGP maintains unicast and multicast routing information, and stores both types in different routing tables to ensure their separation.
MP-BGP supports unicast and multicast, and constructs different network topologies for each.
MP-BGP can maintain unicast and multicast routes based on routing policies. The unicast routing policies and configurations supported by BGP-4 can mostly be applied to multicast.
Multiprotocol BGP is also widely deployed in case of MPLS L3 VPN, to exchange VPN labels learned for the routes from the customer sites over the MPLS network, in order to distinguish between different customer sites when the traffic from the other customer sites comes to the provider edge router (PE router) for routing.
^Chandra, Ravi; Bates, Tony J.; Rekhter, Yakov; Katz, Dave (January 2007). "RFC 4760". ietf.org. IETF. Retrieved 11 July 2017.
Multiprotocol Extensions for BGP (MBGP or MP-BGP), sometimes referred to as MultiprotocolBGP or Multicast BGP and defined in IETF RFC 4760, is an extension...
"address families". It is also called the Multiprotocol Extensions which is MultiprotocolBGP (MP-BGP). BGP neighbors, called peers, are established by...
Multiprotocol Label Switching (MPLS) is a routing technique in telecommunications networks that directs data from one node to the next based on labels...
which are placed into a routing table specific to the customer. MultiprotocolBGP (MP-BGP) is required in the cloud to utilize the service, which increases...
Gateway Protocol (BGP) (PE to PE or PE to CE communication) Open Shortest Path First (OSPF) (PE to CE router communication) Multiprotocol Label Switching...
Gateway Protocol (BGP) used by the provider's routers only looks at the four-octet IP address, but the BGPMultiprotocol Extensions allow BGP to view the entire...
methods for full mesh establishment for VPLS: using Border Gateway Protocol (BGP) and using Label Distribution Protocol (LDP). The "control plane" is the...
Multiprotocol Encapsulation, or MPE for short, is a Data link layer protocol defined by DVB which has been published as part of ETSI EN 301 192. It provides...
overlapping addresses in the multiple customers' PPVPNs. BGP/MPLS PPVPN In the method defined by RFC 2547, BGP extensions advertise routes in the IPv4 VPN address...
Internet uses a routing protocol called border gateway protocol (BGP), as do most Multiprotocol Label Switching (MPLS) networks. With this design, there is...
that use routing protocols such as Open Shortest Path First (OSPF) or Multiprotocol Label Switching (MPLS) for reliability and scalability, allowing edge...
protocols IP Type of Service Note that the Egress interface, IP Nexthop or BGP Nexthops are not part of the key, and may not be accurate if the route changes...
intermediate routers. VRFs were initially introduced in combination with Multiprotocol Label Switching (MPLS), but VRF proved to be so useful that it eventually...
applications utilized by internet service providers, such as OSPF, BGP, and Multiprotocol Label Switching (VPLS/MPLS). It supports both Internet Protocol...
In Multiprotocol Label Switching (MPLS), a P router or provider router is a label switch router (LSR) that functions as a transit router of the core network...
be used as an alternative protocol to Multiprotocol Label Switching (MPLS) for encapsulation of multiprotocol Layer 2 communications traffic over IP...
tunneling protocols such as Generic Routing Encapsulation (GRE) or Multiprotocol Label Switching (MPLS). Loopback interfaces are virtual interfaces that...
cellular and satellite Internet access. Access providers may have an MPLS (Multiprotocol label switching) or formerly a SONET backbone network, and have a ring...
the protocol identifier, and, optionally, the destination port. In Multiprotocol Label Switching (MPLS) a flow is defined as a label-switched path (LSP)...
Top-of-the-Rack BGP Router used. BGP data LIFs along with NAS LIFs also can be used with Ethernet for NAS environment but in case of BGP LIFs, automatically...
were brought together at NASA Ames Research Center creating the first multiprotocol wide area network called the NASA Science Internet, or NSI. NSI was...
Multiprotocol Encapsulation (MPE), which was developed and standardized by the DVB project. MPEG-2 Generic Stream Encapsulation (GSE) Multiprotocol Encapsulation...
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