![]() ![]() This table is called a MAC address table. Collisionĭomains are isolated at the physical layer so that collisions will not occur between hosts (or networks) connected through this Layer 2 device due to uneven traffic rates on these hosts (or networks).Ī Layer 2 device parses and learns source MAC addresses of Ethernet frames and maintains a mapping table of MAC addresses and ports. Ports on a Layer 2 device send and receive data independently and belong to different collision domains. A Layer 2 device works at the second layer of the OSI model and forwards data packets based on media access control (MAC) addresses. ![]()
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