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Border Gateway Protocol (BGP) is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet. [2] BGP is classified as a path-vector routing protocol , [ 3 ] and it makes routing decisions based on paths, network policies, or rule-sets configured by a network ...
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.
SEND is documented in RFC 6494 and RFC 6495. These RFCs are a product of the IETF's SIDR ("Secure Inter-Domain Routing") working group, [1] and are based on a threat analysis which was documented in RFC 4593. These standards cover BGP origin validation, while path validation is provided by BGPsec, which has been standardized separately in RFC ...
Different protocols are often used for different topologies or different application areas. For example, the Open Shortest Path First (OSPF) protocol is generally used within an enterprise and the Border Gateway Protocol (BGP) is used on a global scale. [1] BGP is the de facto standard for worldwide Internet routing.
Border Gateway Protocol (BGP) is an example of a path vector protocol. In BGP, the autonomous system boundary routers (ASBR) send path-vector messages to advertise the reachability of networks. Each router that receives a path vector message must verify the advertised path according to its policy.
Border Gateway Protocol Security (BGPsec) is a security extension of the Border Gateway Protocol defined in RFC 8205, published in September 2017. BGPsec provides to receivers of valid BGPsec UPDATE messages cryptographic verification of the routes they advertise. [1] BGPsec replaces the BGP AS_PATH attribute with a new BGPsec_Path attribute. [2]
NSFNet Internet architecture, c. 1995. Internet exchange points began as Network Access Points or NAPs, a key component of Al Gore's National Information Infrastructure (NII) plan, which defined the transition from the US Government-paid-for NSFNET era (when Internet access was government sponsored and commercial traffic was prohibited) to the commercial Internet of today.
Anycast is a network addressing and routing methodology in which a single IP address is shared by devices (generally servers) in multiple locations. Routers direct packets addressed to this destination to the location nearest the sender, using their normal decision-making algorithms, typically the lowest number of BGP network hops.