Lan classification: Ethernet, card ring network, FDDI, ATM, WLAN

Lan classification: an Ethernet, ring-based network, FDDI, ATM, or WLAN. To send information, a host must first listen to whether other hosts are sending information on the trunk line, if it is available, it will wait for a random time to listen until the message is successfully sent. Other hosts can receive the data packet sent by the host, and then check whether it is sent to themselves, or discard it; the media Access control protocol adopts the Carrier Sense Multiple Access/Collision Detect (CSMA/CD), that is, the multi-channel Access/conflict detection mechanism of the Carrier listener; the structure of the use of the IEEE 802.3 standard ring network is a ring. There is a token in the ring, and the token is cyclically transmitted in turn, A central host can send Data to the main line only when it obtains the token. It uses the IEEE 802.5 standard FDDI (Fiber Distributed Data Interface) ATM (Asynchronous Transfer Mode) (asynchronous transmission mode) WLAN (Wireless Local Area Network)