Ethernet is one of the most common computer-networking components, and the standardization of this technology has created some of the easiest ways to connect a few computers with or without wires. There's a good chance you're using it right now. Find out what Ethernet is and how it creates a computer network.

Product Title RJ45 LAN Ethernet 1 to 3 Port Splitter Cable Network Average rating: 3 out of 5 stars, based on 12 reviews 12 ratings Current Price $14.47 $ 14 . 47 List List Price $26.05 $ 26 . 05 Following the address fields, IEEE 802.3 Ethernet uses a 2-byte "length" field that includes the IEEE 802.2 Logical Link Control (LLC) bytes and the data bytes. The length field in IEEE 802.3 Ethernet frames is always less than hex '05DC'. This corresponds to 1500 bytes which is the maximum frame size for Ethernet. Webinar: Interoperability and the Ethernet Ecosystem. Interoperability and the Ethernet Ecosystem webinar panelists will discuss the multivendor integration showcasing a live 400 GbE switch fabric, an implementation of Flex Ethernet (FlexE), 100Gb/s per lane over a direct attach cable (DAC) and analysis of PAM4 signaling, and a broad array of the latest Ethernet products and solutions. Aug 18, 2011 · Logical Link Control (LLC) is one of two Data Link Layer (DLL) network protocol sublayers within the Open System Interconnection (OSI) data communication model. LLC is located in the upper DLL area of OSI Layer 2 above the Physical Layer (PHY) of OSI Layer 1. LLC is standardized as IEEE 802.2 by the Institute of Electrical and Electronics

When IEEE took the DIX Ethernet and came up with its own 802.3 Ethernet, 802.2 LLC and 802 SNAP, another RFC - this time, RFC 1042 - came out that dealt with encapsulating IPv4 into these IEEE frame formats. This RFC is more complex to read but it basically stipulates that for 802.3 Ethernet networks, the 802 SNAP shall be used.

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The LLC layer is an IEEE mechanism for identifying the data carried in an Ethernet frame. The MAC layer defines the protocol used to arbitrate access to the Ethernet system. Both of these systems are described in detail in Chapter 3 . Ethernet Test Access Port that does not require an ethernet port, for thin notebook or netbook PCs. Uses USB 3 or USB 2 port on PC (Also provides a CAT-5 TAP port) A 'Test Access Port' allows you to see the packets on an ethernet link. Directly supports 10-, 100- or 1000Base-T links. 802.3 (which uses 802.2 LLC format) has a Length field in the same place that Ethernet II has a Type field. IEEE 802.3 with 802.2 LLC (used by Spanning-Tree, ISIS) use the highlighted bytes for a Length field. 802.3 Upper-layer protocols are decoded via the 802.2 LLC Header / SNAP bytes. The following is a description of the frame format described by the original Ethernet Version II specification as released by DEC, Intel, and Xerox. Like the 802.3 spec, the Version II spec defines a Datalink Header consisting of 14 bytes (6+6+2) of information, but the Version II spec does not specify an LLC Header.