TOPIC This article gives a brief description of the IEEE 802.X LAN Protocols. DISCUSSION The Institute of Electrical and Electronic Engineers (IEEE) was created to establish standards. These standards include Project 802 for specifying interface and protocol specifications for various LAN topologies. The resulting 802 standards correspond with the Physical and Data Link layers of the ISO-OSI Model Layers 1 and 2, the Physical and Data Link layers. 802.1 Overview, Interworking and Systems Management 802.2 Logical Link Control 802.3 CSMA/CD Access Method and Physical Layer Specifications 802.4 Token-Passing Bus Access Method and Physical Layer Specifications 802.5 Token-Passing Ring Access Method and Physical Layer Specifications 802.6 Metropolitan and Network Access Method and Physical Layer Specifications IEEE 802.1 and 802.2 are still being defined. Furthermore, any associated "packets" aren't going to be seen on the LAN,, because they define the common interface for higher software levels over networks with different topologies, protocols, and media. IEEE 802.3, 802.4, and 802.5 define different network topologies and media access methods, or the ability of a node to physically send and receive data on a LAN. Ethernet Data Link Frame Format Destination (48 bits), Source (48 bits), Type (16 bits), Data (8n: 46 bytes<= n <=1500 bytes), CRC (32) 802.3 CSMA/CD Access Method Destination (16 or 48 bits), Source (16 or 48 bits), Length (16 bits), Data (8n: 46 bytes<= n <=1500 bytes), CRC (32) 802.4 Token-Passing Bus Destination (16 or 48 bits), Source (16 or 48 bits), Data (8n: our materials didn't list the max), CRC (32) 802.5 Token-Passing Ring Destination (48 bits), Source (48 bits), Data (8n: max of 4K), CRC (32) |
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| Document Information | |
| Product Area: | Communications-Networking |
| Category: | Protocol and File Format Information |
| Sub Category: | General Topics |
| Keywords: | |
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