new syllabus for ccna

new syllabus for ccna.status, and taking practical action when changes occur, you will have problems. You will end up with blind spots in coverage andthere is no practical dynamic way to recover. Therefore, centralized control is necessary, and the Cisco Unified Wireless Network (CUWN,CiscoUnifiedWirelessNetwork) is based on centralized control.Figure 10-4Cisco 1240AG Series AP Figure 10-5Cisco 1250 Series APBecause the 1250 Series APs support the draft 802.11n standard, they can achieve data rates of approximately 300 Mbit/s per band and 2x3 multiple-input multiple-output technology. The 2x3 multi-input multi-output technology was discussed in Chapter 6. Again, because the 1250 is modular, it can be easily field upgraded. It operates in controller-based and standalone modes and also follows the 802.1H/WPA2 protocol.The 1250 is used in more complex indoor environments. You may see it in some of the more dangerous places (like packaging plants) or in hazardous locations where antennas and APs need to be placed. You may also see this type of AP in factories and hospitals. it has 64MB of DRAM and 32MB of flash memory and is available in the 2.4GHz and 5GHz radio bands.4. 1300 Series AP/BridgeThe CiscoAironet 1300 Series Outdoor AP/Bridge is designed as a client AP as well as a bridge, as shown in Figure 10.6.The 1300 Series operates in 802.11b or g mode only, as it does not have a 5GHz wireless communication band. It has a NEMA-4 compliant package, so you can install it in outdoor environments and it is resistant to the elements.There are 2 available versions of the 1300 Series --------- one has an integrated antenna and the other has an antenna connector so you can add your own antenna to it. Since the 1300 series does not support the 802.11a protocol, the connector will be a 2.4GHz antenna.