Blog Archives
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"It Depends" - The answer to all wireless questions
By Ronen Isaac - Thursday December 4, 2008We get questions daily from integrators and end customers asking about wireless IP video surveillance and I think some get frustrated when we answer, "well....it depends" and start asking 20 questions. Wireless is a fantastic technology and perfectly enables the use of IP video surveillance in those hard to reach areas of your campus but there are a lot of things to consider. So, in an attempt to reduce the number of times your hear that wonderful phrase here are some things to start thinking about... Forget the Hype: The first thing you MUST do is forget the datarate figures that manufacturers market on the side of the box. Manufacturers of 802.11a/b/g WiFi based hardware advertise datarates of 54Mbps and 108Mbps but your... -
What's What? Basic Network Hardware Components
By Ronen Isaac - Tuesday November 25, 2008So lets start with the basics. Many of you might already know this but it is worth recapping the different hardware pieces that make up ip networks. There are four major hardware components: Router Firewall Switch End Node Router: Routers forward packets from one network to another. Traditional routers are used to terminate you WAN connections but as Metro Ethernet becomes more and more popular a traditional router can be replaced with a firewall or layer 3 switch (we'll discuss those in another blog) Firewall: We all know what this does. It secures your network from outside (and inside) vulnerabilities. Normally it is also given the task of doing the NAT for the network. Briefly... -
PANs, LANs, MANs, WANs?
By Ronen Isaac - Saturday November 15, 2008OK so what type of network is right for your application? By definition networks connect multiple devices through the use of IP for the purpose of sharing data & resources. These networks are broken down into several categories that explain where one device is in relation to another: PAN: Personal Area Network LAN: Local Area Network MAN: Metropolitan Area Network WAN: Wide Area Network The Personal Area Network (PAN) is a new type of network that describes two or more devices that are located on your person and normally connect to one another via bluetooth. A perfect example of a PAN is a cell phone connecting to a bluetooth headset or mobile computer connecting to a portable bluetooth thermal... -
Welcome to The Command Line
By Ronen Isaac - Tuesday November 11, 2008This is my first BLOG post on securityinfowatch.com and I am extremely excited about this opportunity. My first posted article " Understanding Wireless Bridges for IP Networks " was my "interview" and because enough of you thought it was interesting, I made the cut. I would first like to thank you all before I get started. My goal here on "The Command Line" (TCL) will be to write about IP networking in general and as it relates to IP Video Surveillance. Hopefully you will find the information helpful in your new installs as the industry increasingly focuses on IP and starts phasing out Analog systems. I plan to start with the basics and work up from there. If you have a specific topic you would like discussed please...
