Local Area Network

/ˌlɒk.əl ˈɛəˌnet/

noun — "a local network connecting devices in a limited area."

LAN, short for Local Area Network, is a network that interconnects computers, servers, and devices within a limited geographic area, such as a home, office, or campus. LANs enable high-speed data exchange, resource sharing, and collaborative communication between connected devices. They are foundational to enterprise computing, gaming setups, and smart building infrastructures.

Network

/ˈnɛt.wɜːrk/

noun — "the web of connected devices exchanging data."

Network is a system of interconnected devices, nodes, or computers that communicate and share resources through wired or wireless links. Networks can range from small local setups, such as Local Area Networks (LAN), to expansive global structures like the Internet. They enable resource sharing, distributed computing, data transfer, and communication between users and devices.

Multicast Listener Discovery

/ˌɛm ɛl diː/

noun — "tracking who wants multicast traffic on IPv6 networks."

MLD (Multicast Listener Discovery) is a network protocol used in IPv6 environments to manage membership in multicast groups. It allows routers to discover which hosts on a local network segment are interested in receiving multicast traffic and to stop forwarding multicast packets where no listeners exist. Functionally, MLD serves the same role in IPv6 that IGMP serves in IPv4, but it is tightly integrated into the IPv6 protocol suite.

Internet Group Management Protocol

/ˌaɪ dʒiː ɛm piː/

noun — "managing who joins and leaves network multicast groups."

IGMP (Internet Group Management Protocol) is a communications protocol used in IPv4 networks to manage membership in multicast groups. Multicast allows a single packet stream to be delivered efficiently to multiple recipients without sending separate copies to each host. IGMP enables hosts to report their interest in joining or leaving multicast groups to neighboring routers, which then control the distribution of multicast traffic across the network.