Peer-to-peer 
(P2P) computing or networking is a distributed application architecture that partitions tasks or work loads between peers. Peers are equally privileged, equipotent participants in the application. They are said to form a peer-to-peer network of nodes.
Administrative distance (AD) is an arbitrary numerical value assigned to dynamic routes, static routes and directly-connected routes. The value is used by vendor-specific routers to rank routes from most preferred to least preferred.
Multihoming is the practice of connecting a host or a computer network to more than one network. This can be done in order to increase reliability or performance, or to reduce cost.
Internet transit is the service of allowing network traffic to cross or "transit" a computer network, usually used to connect a smaller Internet service provider (ISP) to the larger Internet.
An Internet exchange point (IX or IXP) is a physical infrastructure through which Internet service providers (ISPs) and Content Delivery Networks (CDNs) exchange Internet traffic between their networks (autonomous systems).
An Autonomous system (Internet) is a collection of connected Internet Protocol (IP) routing prefixes under the control of one or more network operators on behalf of a single administrative entity or domain that presents a common, clearly defined routing policy to the Internet.
Routing is the process of selecting best paths in a network.
Default route is a setting on a computer defining the packet forwarding rule to use when no specific route can be determined for a given Internet Protocol (IP) destination address. All packets for destinations not established in the routing table are sent via the default route.
Default-free zone (DFZ) refers to the collection of all Internet autonomous systems (AS) that do not require a default route to route a packet to any destination.
Vendor-neutral data centre refers to a specialised and focused business model, in which a data centre provider limits its activities to a fixed set of value layers in order to avoid conflicts of interest. The provider creates an open market and a platform for others to add value. The provider remains neutral and independent and offers standard open interconnect policies.
Net neutrality is the principle that Internet service providers and governments should treat all data on the Internet the same, not discriminating or charging differentially by user, content, site, platform, application, type of attached equipment, or mode of communication.
Point of presence (PoP) is an artificial demarcation point OR interface point between communicating entities. It may include a meet-me-room.
Meet-me room (MMR) is a place within a colocation centre (or carrier hotel) where telecommunications companies can physically connect to one another and exchange data without incurring local loop fees.