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Network #7

From 3.3

TermDefinition
Institute of Electrical and Electronics Engineers(IEEE) Promote development and education in electrical engineering and compsci
Project 802 Allows different manufacturers' equipment to work together. Specifies functions of the physical layer and the data-link layer of major LAN protocols
Media Access Control(MAC) address 6 bytes(48 bits). Normally written in hex notation
Network Interface Card(NIC) Each station (ex. PC) has its own. Each NIC has a "lifetime" data link layer or MAC address
Early Ethernet - Contention since the network that uses the standard ethernet protocol is a broadcast network, we need to use an access method to control access to the sharing medium
Carrier Sense Multiple Access with Collision Detection (CSMA/CD) contention-based multiple access method: every station in the network must take turn to transmit
Fast Ethernet Increase throughput to 100 Mbps. Compatible with standard ethernet. Can use hubs or switches
Steps of CSMA/CD 1. End-node (ex. station) senses the medium 2. If no one is transmitting, end-node can transmit 3. If someone else is transmitting, end-node "backs off" and waits for the medium to be free 4. Go to #1 and try again
Gigabit Ethernet IEEE 802.3z / IEEE 802.3ab. 1Gbps throughput. Uses switches only(no hubs. Defined for fibre optic cable and copper media
10Gbit Ethernet IEEE 802.3ae. Can be used for both LAN and MAN. Operates only in switched full-duplex
Virtual Local Area Network(VLAN) Configured by software, not physical wiring
Spanning Tree Protocol(STP) IEEE 802.1D. Prevents ethernet frames looping endlessly. Calculates paths avoiding potential loops
Created by: jolly_n4
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