Early Inter-Domain Routing: The Exterior Gateway Protocol (EGP)Origins of EGPOperation of EGPShortcomings of EGPThe Advent of BGPBGP BasicsAutonomous System TypesExternal and Internal BGPMultihomingTransit AS MultihomingStub AS MultihomingMultihoming and Routing PoliciesMultihoming Issues: Load Sharing and Load BalancingMultihoming Issues: Traffic ControlMultihoming Issues: Provider-Assigned AddressingClassless Inter-Domain RoutingA Summarization SummaryClassless RoutingSummarization: The Good, the Bad, and the AsymmetricCIDR: Reducing Class B Address Space DepletionCIDR: Reducing Routing Table ExplosionManaging and Assigning IPv4 Address BlocksCIDR Issues: Multihoming and Provider-Assigned AddressesCIDR Issues: Address PortabilityCIDR Issues: Provider-Independent AddressesCIDR Issues: Traffic EngineeringCIDR Approaches Its LimitsIPv6 Comes of AgeRouting Table Explosion, AgainLooking AheadReview Questions