By Matthew S. Gast
This can be a nice e-book for wireless process engineers to appreciate 802.11 a\b\g PHY and MAC. The publication not just talks approximately theoretical stuff but in addition offers sensible points of wireless networking.
Read Online or Download 802.11 Wireless Networks: The Definitive Guide, Second Edition PDF
Best certification books
Analytical Network and System Administration: Managing Human-Computer Systems
Network and system management frequently refers back to the ability of preserving desktops and networks operating properly. yet honestly, the ability wanted is that of coping with complexity. This publication describes the technology in the back of those advanced platforms, self sufficient of the particular working structures they paintings on. It offers a theoretical method of platforms management that:saves time in acting universal approach management initiatives.
Approved Self-Study consultant Designing for Cisco Internetwork ideas (DESGN) moment version origin studying for CCDA examination 640-863 Designing for Cisco Internetwork suggestions (DESGN), moment version, is a Cisco®-authorized, self-paced studying instrument for CCDA® origin studying. This ebook will give you the information had to layout company networks.
CCIE Wireless Exam 350-050 Quick Reference
As a last examination training software, the CCIE instant (350-050) fast Reference offers a concise overview of all targets at the new written exam. the fast publication presents readers with specific, graphical-based details, highlighting basically the foremost issues in cram-style structure. With this rfile as your advisor, you'll overview issues on options and instructions that observe to this examination.
- Juniper Networks Field Guide and Reference
- CISSP Exam Cram 2
- Programmable Networks for IP Service Deployment
- Quality February 2011
Extra resources for 802.11 Wireless Networks: The Definitive Guide, Second Edition
Example text
11 does not support this type of transition, except to allow the station to associate with an access point in the second ESS once it leaves the first. Higher-layer connections are almost guaranteed to be interrupted. 11 supports ESS transitions only to the extent that it is relatively easy to attempt associating with an access point in the new extended service area. Maintaining higher-level connections requires support from the protocol suites in question. In the case of TCP/ IP, Mobile IP is required to seamlessly support an ESS transition.
The distribution system is responsible for tracking where a station is physically located and delivering frames appropriately. When a frame is sent to a mobile station, the distribution system is charged with the task of delivering it to the access point serving the mobile station. As an example, consider the router in Figure 2-5. The router simply uses the MAC address of a mobile station as its destination. The distribution system of the ESS pictured in Figure 2-5 must deliver the frame to the right access point.
In Figure 2-5, the router uses the station's MAC address as the destination to deliver frames to a mobile station; only the access point with which that mobile station is associated delivers the frame. The router remains ignorant of the location of the mobile station and relies on the access points to deliver the frame. 11 radio chips had the ability to create a single basic service set. An AP could have connect users to only one "wireless network," and all users on that network had similar, if not identical, privileges.