802.11 Frame Format In a wired Ethernet network, the switch is not an active participant in communication at L2. In a wireless LAN, the AP is an active participant unless something like 802.11z, Extension to Direct Link Setup (DLS) is
CCNA Wireless – CCNA Wireless Notes Chapter 5
Types of Wireless Networks Wireless LANs are not the only type of wireless networks that exist. Wireless Personal Area Network (WPAN) WPAN uses low-powered transmitters to create a very short range network, usually 7 to 10 meters. Based on the
CCNA Wireless – CCNA Wireless Notes Chapter 4
Antenna Characteristics Different antennas are needed for different applications. An open office space is very different to to a strip of closed offices. How do you cover a large open area such as a lobby? Covering an outdoor area is
CCNA Wireless – CCNA Wireless Notes Chapter 3
Interference Interference will exist if there are other transmitters on the same channel or adjacent channels. This will lead to loss of frames and the frames will then have to be retransmitted, using up air time. Interference can be caused
CCNA Wireless – CCNA Wireless Notes Chapter 2
ITU-R A telecommunications regulatory body that regulates or decides how different parts of the RF spectrum may be used. Countries can also have own regulatory bodies that regulate the spectrum within the country. Maintains spectrum in three different regions: Region
CCNA Wireless – CCNA Wireless Notes Chapter 1
I’ve started studying for the CCNA wireless exam and thought I would put my notes online. I always learn better when writing and hopefully my notes can be of assistance to someone else. These notes are based on reading the