Library items tagged: standards

WEP deprecated

Anonymous

Thursday, February 9, 2012 - 10:32

PB/INFO/071 (10/06) WEP, WPA or Other? The JANET Wireless Advisory Group (WAG) strongly advises the replacement of WEP techniques with WPA or WPA2/802.11i-based security, or alternatives such as encrypted VPN and self-securing protocols like SSH, as soon as possible.

IEEE 802.1X

Anonymous

Thursday, February 9, 2012 - 10:19

PB/INFO/64 (11/05)

Disabling 802.11b

Anonymous

Thursday, February 2, 2012 - 14:03

IEEE 802.11b is one of the oldest WiFi standards still in use and is beginning to show its age. IEEE 802.11b products first started to appear in 1999. Now, more than a decade since its first appearance, the time is approaching for IEEE 801.11b to be turned off, for the reasons detailed below. As this may not be immediately possible for some sites, possible transition and migration strategies are also described below.

Deployment issues in making the transition from 802.11a/g to 802.11a/g/n

Anonymous

Thursday, February 2, 2012 - 14:01

Scott Armitage, Loughborough University 9 May 2011 Introduction 802.11n is the latest Wi-Fi standard in wireless networking. Although the standard was only fully ratified in 2009, it is already very well supported in client chipsets. Pre-standard devices began appearing as early as 2007 and by the time of ratification, the vast majority of new laptops being sold had 802.11n-capable wireless adapters. Furthermore, 802.11n has now begun to appear in smart phones.

The ‘alphabet soup’ of the 802.11 family of wireless standards

Anonymous

Thursday, February 2, 2012 - 13:54

The IEEE 802.11 wireless LAN working group has 250 supporting companies, 650 active members and a predilection for incomprehensible acronyms. These are the ones you need to know about: 802.11 The original 1997 2.4GHz wireless Ethernet standard, running at 1 or 2Mbit/s. As with modems, newer standards can fall back to this standard under difficult conditions or if in contact with an older interface. There were two variants, frequency hopping and direct sequence, but these were for political rather than technical reasons.

Wireless 802.11 standards

Anonymous

Thursday, February 2, 2012 - 09:14

Wireless networking is virtually synonymous with the deployment of equipment supporting one or more of the 802.11 family of standards. These have experienced a period of rapid growth of use in recent years, and the problems and caveats associated with networking to these standards are well documented. Essentially 802.11 can be viewed as a technology to both supplement and extend the traditional wired local area network (LAN).