David’s Cisco Networking Blog:

Wireless

Aug 25 2008   5:16AM GMT

What effect could Internet access have for everyone around the USA?



Posted by: David Davis
Wireless

It has been suggested that the United States only uses 5% of the Internet. There is so much untapped information that can be accessed but unavailable due to technology restraints. But, thanks to the latest article from Google’s co-founder, Larry Page on Google’s vision of “wi-fi on steroids”, it may be possible in the very near future to fully utilize the internet for personal use and to attract tourism to remote areas that previously were unavailable or unknown. That’s one of the many potential uses for the wireless spectrum that is now lying unused between TV channels, says Page. To put this in perspective, think about all the unused open sectors on your PC hard drive. Once they are identified and compressed, wow, it’s like your PC suddenly is in warp drive. That’s an analogy of the “white space” that is available on the internet but not being used. White space or spectrum sensing as it is called holds the promise of giving low income Americans the availability to access the internet via wi-fi wireless Mesh networking at a cost that can be affordable. It can be possible to hold a conversation while passing through a tunnel or on a subway using this technology.

Current internet providers need not worry. Personal/portable devices will continuously scan for TV and wireless microphone signals, both full and low-power TV licensees will be detected and avoided even if they change channel assignments in the future. If FCC give its approval for use of spectrum sensing, it will not be implemented until after the February 2009 transition deadline. Additionally, it will take time for manufacturers to build and for the FCC to test and certify the devices.  For additional information, please read the blog: Larry Page talks about Google’s vision of “wi-fi on steroids”.

Aug 20 2008   5:06AM GMT

Doctors and Medical Staff go wireless thanks to Cisco



Posted by: David Davis
Wireless, Cisco

We have come a long way from the age of Doctors coming to our homes in horse-drawn carriages. I recently read about Cisco’s healthcare solutions and was interested in how advanced their offering was. If you think about all the technology that goes into a hospital or doctor’s office, there is a ton of technology that makes that happen. Consider these applications:

  • Cisco wireless APs connecting doctor and nurse laptops and PDAs
  • Cisco wireless APs and switches connecting VoIP phones
  • Cisco switches connecting imaging devices for image devices like xray machines with 1GB or 10GB Ethernet
  • Routers transmitting patient data to the proper building or office
  • Network high-availability features like VRRP, HSRP, routing protocols, and STP keeping the WAN and LAN network up in case of failure - Cisco calls this”the medical grade network”.

There is really no more critical data than the data at a hospital as the patient’s lives are at stake. Additionally, HIPPA has also required and driven many of these technology updates.

Do you use Cisco in a healthcare environment? I am interested in hearing what applications you use - post your comments here.

For more information, please see Fulfilling the Promise of Mobile Medicine and Cisco’s healthcare industry solutions.


May 29 2008   7:14PM GMT

Configuring a Cisco 871W with an Excel template - Its so easy!



Posted by: David Davis
Wireless, Cisco, Network Management

Cisco 871W WirelessA very sharp Cisco expert - George Ou - wrote an article that I have recommended many Cisco admins to. This article covers how to configure the Cisco 871W all in one router/switch/wireless AP. Along with the excellent technical explanations, he has a spreadsheet with macros that allows you to enter some basic information and automatically have a full IOS configuration created! Amazing! I hope you will take a look. Here are the URLS:

Configuring the Cisco 871W wireless router: SOHO setup

Generate your own ready-to-use Cisco 871W configuration with this handy tool