Download e-book for iPad: A Field Guide to Wireless LANs for Administrators and Power by Thomas Maufer

By Thomas Maufer

ISBN-10: 0131014064

ISBN-13: 9780131014060

During this e-book, best-selling networking writer Thomas Maufer explains how instant LANs paintings, and the way to cause them to paintings for you-reliably and securely. Maufer takes you lower than the hood with present day newest WLAN applied sciences, providing sensible perception and context for deploying, handling, and troubleshooting WLANs in any setting, from the company to the home.Covers all top IEEE 802.11 instant criteria: 802.11a, 802.11b, 802.11g, and 802.11i/WPAShows the way to installation small, mid-sized, huge, public, enterprise, and residential networksProvides pattern Windows(R), Linux(R), and MacOS(R) configurations that assist you start quicklyDemystifies WLAN protection so that you can know how to guard your dataIlluminates the 802.11 protocol so that you can troubleshoot extra effectivelyPreviews tomorrow's WLAN criteria and functions for company and residential (IEEE 802.11j and 802.11n)Whether you are a network/system administrator or an influence consumer, Thomas Maufer demystifies instant LAN technology... so that you can maximize the advantages whereas minimizing the hassles.

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Additional info for A Field Guide to Wireless LANs for Administrators and Power Users

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Figure 2-5. 3 Ethernet (with the "Length" as opposed to "Type" interpretation of the frame), the protocol stack using the LLC sub-layer is used. 2 LLC sub-layer protocol(s). 3/Ethernet. The presence of a "Type" field in the original Ethernet header is the main thing that distinguishes it from the protocols that were subsequently developed by the IEEE LMSC, since all of those subsequent protocols rely on the LLC sub-layer protocol (and possibly the SNAP sub-layer protocol) to identify the contents of the frame.

The IEEE defines the MAC sub-layer to be the lower portion of the OSI-RM's Data Link layer, and is concerned with implementing medium-specific operations to ensure that data is properly transmitted and received. A typical protocol stack, such as that depicted in Figure 2-7, shows the relative positions of the LLC and MAC sub-layers. In the IEEE LMSC's protocol architecture, the MAC sub-layer consists of only one protocol. Figure 2-7 also places the Data Link layer in the context of the IETF's TCP/IP protocol stack.

1 data representation, which is used in several IETF protocols, most notably SNMP. 500 (directory services), and so on. ), networked file systems, etc. The application defines whatever primitives it needs to send and receive data, to send and receive status and error codes, and so forth. [ Team LiB ] [ Team LiB ] Aside: The IETF[9] and TCP/IP Standards [9] IETF stands for Internet Engineering Task Force. Before exploring the Data Link layer in more detail, this is a good time to mention the other major protocol suite (which has effectively supplanted the OSI protocol suite); namely, the TCP/IP family of protocols.

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A Field Guide to Wireless LANs for Administrators and Power Users by Thomas Maufer

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