Saturday, November 18, 2006, 10:35 PM
Well, I have not really been making good use out of this blog. But here goes another post regarding WiFi bandwidth. As I was doing some more research on this and other WiFi topics today (in the dd-wrt forums), it appears that the available bandwidth is actually half-duplex (one way). When you have traffic flowing in both directions (which is typical of most TCP connections), the bandwidth is effectively cut in half (assuming that there was an equal amount of data needing to be transmitted in each direction).
Normal wired ethernet (IEEE 802.3x) generally gives you 100 Mbps at full duplex, which means simultaneously in both directions. So at any given time there can truely be a total of 200 Mbps of data traveling across your CAT5 cable.
As with pretty much anything in life, this is believed & accepted to be true and factual. However, just as scientists change the "truth" and facts, we also can change the "truth" as we continue learning. That's the nice thing about being human on Earth....
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( 3.1 / 78 )Sunday, September 17, 2006, 08:27 PM
Everyday when I wake up I think about lots of things. One of them is Kyle. He is an awesome brother. Plus the fact that he speaks Spanish is a major bonus. He is the man!![ 1 comment ] ( 3 views ) | permalink |
( 3.1 / 59 )Sunday, August 27, 2006, 12:33 PM
The coolest ever!![ 3 comments ] ( 12 views ) | permalink |
( 2.9 / 64 )Tuesday, May 16, 2006, 08:01 AM
Just for the record, with 802.11 wireless networks (802.11a/b/g) are a shared medium (like a wired network with a hub).
Therefore, the available bandwidth is shared amongst all clients.
If you have 25 heavy users on 1 54Mbps AP, they would effectively get = 2.16Mbps/each. However, you must also take into consideration the Layer 2 protocol overhead. They might get closer to 1.5 or 1.75 at the IP level, and after the TCP & Application Layer Protocol headers, you may only end up getting 1Mbps/client for actual payload.
This fact can be confirmed by reviewing the thousands of results Google returns from the query: wireless shared bandwidth
Good to know!!
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( 3 / 143 )Saturday, April 29, 2006, 01:21 PM
Yesterday was my last day working for my previous employers, "Think Network Technologies" in Durango, CO. They are a network integration company. There was much good about my working there, especially having the experience of working for an integration firm, however, the time has come to move on. Beginning Monday, I'll be working for Farmington Municipal Schools (http://www.fms.k12.nm.us), assuming the role of "Computer Support Technician". I wouldn't be surprised if the job title changes in the near future. They weren't expecting to get a CCNA, MCP, MS Small Business Specialist & A+ Certified Professional. My skill set will allow me to support their network at higher level than what they had planned for.
On the side, I will be supporting some local small business computer networks (4-45 computers).
Anyway, that's the current employment situation. The future is looking brighter and brighter!
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