Ethernet

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  • Let the 40 Gigabit Ethernet migration begin

    The need for capacity and speed explodes as network teams build private and hybrid clouds and deliver video throughout their campuses and branch offices. So even if they don’t need 40 GbE today, they’ll need to build networks that can be transitioned... 

  • 40 Gigabit Ethernet (40GbE)

    40 Gigabit Ethernet (40GbE) is a standard that enables the transfer of Ethernet frames at speeds of up to 40 gigabits per second (Gbps). 40 GbE runs on Quad Small Form Factor Pluggable (QSFFP) cabling, a high-density fiber connector with 12 strands o... 

  • jumbo frames

    A jumbo frame is an Ethernet frame with a payload greater than the standard maximum transmission unit (MTU) of 1,500 bytes.  

  • 10 gigabit Ethernet (10 GbE)

    10 gigabit Ethernet is a telecommunication technology that offers data speeds up to 10 billion bits per second. It differs from traditional Ethernet in that it is a full-duplex protocol and does not require Carrier Sense Multiple Access/Collision Det... 

  • Power over Ethernet (PoE)

    Power over Ethernet (PoE) is a technology for wired Ethernet LANs (local area networks) that allows the electrical current necessary for the operation of each device to be carried by the data cables rather than by power cords 

  • AARP (AppleTalk Address Resolution Protocol)

    AARP (AppleTalk Address Resolution Protocol) is a way to map between the physical hardware addresses of computers, such as those known to an Ethernet or token ring local area network, and their temporarily assigned AppleTalk network addresses. 

  • cyclic redundancy checking

    Cyclic redundancy checking is a method of checking for errors in data that has been transmitted on a communications link. 

  • MDI/MDIX (medium dependent interface/MDI crossover)

    MDI/MDIX is a type of Ethernet port connection using twisted pair cabling. 

  • Carrier Sense Multiple Access/Collision Detect (CSMA/CD)

    Carrier Sense Multiple Access/Collision Detect (CSMA/CD) is the protocol for carrier transmission access in Ethernet networks. 

  • TCP/IP offload engine (TOE)

    The TCP/IP offload engine (TOE for short) is a technology that is gaining popularity in high-speed Ethernet systems for the purpose of optimizing throughput. 

  • Ethernet Glossary

    After you've finished, you can test your knowledge with Quiz #28: Ethernet. 

  • See more Definitions on Ethernet
About Ethernet

Ethernet LANs are more complex than ever. You'll find what you need to know to make them run flawlessly here, as well as information on how to upgrade to Gigabit Ethernet, 10 Gigabit Ethernet, and Power over Ethernet (PoE).