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Animals Published date: March 3, 2018

  The primary purpose of the dual rings, as will be discussed in detail later in this chapter, is to provide superior reliability and robustness.
Ethernet is a family of computer networking technologies for local area networks (LANs).It is a physical and data link layer technology for local area networks (LANs). Ethernet was invented by engineer Robert Metcalfe. Ethernet has largely replaced competing wired LAN technologies. Ethernet is a family of computer networking technologies for local area networks (LANs) commercially introduced in 1980. Ethernet is Standardized in IEEE 802.3.
Following are some Ethernet features:
• Ethernet transmits data at up to ten million bits per second (10 Mbps). Fast Ethernet supports up to 100 Mbps, Gigabit Ethernet supports up to 1000 Mbps , and 10 Gbs Ethernet supports up speeds matching its name (or 10,000 Mbs).
Buildings at Indiana University are connected to the campus backbone using 1 Gbs ethernet. At IU, 10 Gbs connectivity is primarily used for backbone links, though some systems in the Data Centers are connected at this speed as well.
• Ethernet supports networks built with twisted-pair (10BaseT) , thin and thick coaxial (10Base2 and 10Base5, respectively), and fiber-optic (10BaseF) cabling. Fast and Gigabit Ethernets can be built with twisted-pair (1001000BaseT) and fiber-optic (100BaseF1000BaseLR) cabling. Currently, 10 and 100BaseT Ethernets are the most common for hosts within buildings.
• Data is transmitted over the network in discrete packets (frames) which are between 64 and 1518 bytes in length (46 to 1500 bytes of data , plus a mandatory 18 bytes of header and CRC information).
• Each device on an Ethernet network operates independently and equally, precluding the need for a central controlling device.
• Ethernet supports a wide array of protocols, the most common including TCPIP, UDP , and ICMP (Ping).
• To prevent the loss of data, when two or more devices attempt to send packets at the same time, Ethernet detects collisions. All devices immediately stop transmitting and wait a randomly determined period of time before they attempt to transmit again.
A Token Ring network is a local area network (LAN) in which all computers are connected in a ring or star topology and a bit- or token-passing scheme is used in order to prevent the collision of data between two computers that want to send messages at the same time.
Unlike Ethernet, Token Ring uses a ring topology whereby the data is sent from one machine to the . Soccer Jerseys Cheap   Nike NBA Jerseys Cheap   MLB Jerseys China   Jerseys China   MLB Jerseys Wholesale   NHL Jerseys China   NFL Jerseys China   NCAA College Jerseys Cheap   Authentic NBA Jerseys Cheap   Authentic Jerseys Cheap 

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