A collision is the situation that occurs when two or more demands are made simultaneously on equipment that can handle only one at any given instant.Source: from Federal Standard 1037C and from MIL-STD-188 It may refer to:

Collision domain, a physical network segment where data packets can "collide" Carrier-sense multiple access with collision avoidance, (CSMA/CA) used for example with wireless LANs Carrier-sense multiple access with collision detection, (CSMA/CD) used with Ethernet Late collision, a specific type of collision that should not occur on properly operating networks Local collision is a collision that occurs in the network interface rather than on the network itself

See also Collision (disambiguation) Contention (telecommunications)

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