| |
| |
|
Broadband Internet Information |
|
|
|
ICMP Protocol - Internet Control Message Protocol
The Internet Control Message Protocol communicates errors messages between systems that require attention. This error is not usually at the user level, the error is handled by the application layer. In the OSI Reference model, ICMPs are generally considered part of the IP layer. To put to plain and simple, ICMP messages are sent "behind the scenes" to your applications to tell them if there is a problem with the connection or transfer of data. These messages tell your application to change what they are doing, change how they are sending and basically give them an error code on how they can successfully fix their problems. ICMPs' are sent in a standard IP datagram, this datagram contains an IP header of twenty (20) bytes and then the ICMP message. There are fifteen values for the type field of the datagram which identifies the type of ICMP message. The "code" portion of the datagram specifies the condition of the "type" even further. This sounds a bit confusing at first, but you have two major categories, the primary "problem," and then a secondary more in depth look at that problem. This will all make more sense when you look at information below. Type 0, code 0 - echo reply Type 3 (destination unreachable) Type 4, code 0 - source quench Type 5 (redirects) Type 8, code 0 - echo request Type 9, code 0 - router advertisement Type 10, code 0 - router solicitation Type 11 (time exceeded) Type 12 (parameter problem) Type 14, code 0 - timestamp reply Type 15, code 0 - information request Type 16, code 0 - information reply Type 17, code 0 - address mask request Type 18, code 0 - address mask reply As you can see from the above information, the primary "type" groups are the main problem, with the "code" further specifying the problem. Much of this stuff doesn't make sense to the human end-user anyway, but it means a lot to the software developers who use these requests to fix problems in their coding. ICMP's are a nice behind the scenes helper that are good to have their, but be thankful you don't really have to deal with them. For even more detailed information on the Internet Control Message Protocol (ICMP) the protocol is defined in RFC 792. Ken Dennis
MORE RESOURCES:
Broadband-Internet - Google News |
|
|
|
RELATED ARTICLES
How to Troubleshoot Your Internet Connection for DSL or Cable Service One of the common problems among internet users is testing their internet connection to pinpoint the exact problem. There is a big number of internet users who use DSL, and cable modem service. Dreams Come True With The Help Of Global Consciousness On The Internet Dreams. There are two types of dreams: 1. Internet Service Providers Internet Service Provider or ISP is a company that provides access to the Internet.Before choosing an ISP, it is important to assess your company's business and marketing goals. A Cheap Alternative To Broadband? Are you a dial-up user looking for a faster connection, but don't like Broadband prices? If so, you should take a look at a new service called OnSpeed, which has received rave reviews in Internet technology publications.What OnSpeed does is to re-route web pages and email via its own servers, compressing the data on the fly prior to sending it onwards to your PC. Chat-less Are you suddenly chat-less now that Yahoo has shut down many chat sites, due to complaints? One complaint was that people where using chat rooms to lure under age kids for sex. While others say the chat rooms were used to promote underage sex. Wifi Hotspot Locations for Sale..is that a Good Thing? Recent companies have been advertising wifi hotspot locations that are 'turnkey' (they can run themselves), and only cost between $13,000 and $20,000 to start. Is that good?First of all, if it's so turnkey then why aren't they just popping off wifi hotspot locations left and right for themselves, is it their newfound generosity that has them 'sharing' the opportunities they have available. Google Brings Millions of Hard-to-Find Library Books to Your Fingertips Millions of hard-to-find books from five major libraries will soon be a lot easier to access: Google has made plans to scan and digitize them, making the books available on their widely used Internet search engine.Google's latest endeavor is a large step beyond previous attempts to scan books so they can be read online (Google, Amazon. Cheap Internet Access For anyone trying to get the cheapest internet available, there are tons of options available. Some providers offer completely free service. Its On! (Free Internet TV - Watch TV Online) Get ready because "there's going to be television out the wazoo!" This according to Jonathan Klein, the president of CNN - U.S. Compare Cable vs. DSL Okay, so you are finally tired of those slow dial-up internet connections, and you want to go broadband. Good deal. Broadband - Will it Affect Your Online Marketing Future? The coming age of general Broadband use bearing down upon us, minute by minute, is going to leave many changes in its wake. Some will be welcome; others will demand all we can do, just to keep up!Of course, items like high quality graphics, streaming video and movies on demand will be commonplace. 3G EV-DO or How the Internet Got Its Wings! The Internet, as most people know it, is history.It just seems like yesterday the Internet was just one big mass of wires and cables; a glorified file sharing warehouse with more than a few too many lines sticking out. Ka Band -Affordable Satellite Internet On The Way! Ka Band VSAT* satellite internet technology has enormous possibilities for telecommuters, rural locations and eventually for Motor Home users around the U.S. Top 3 UK Broadband Providers Every Internet provider today wants to make it sound like you are getting something for nothing. There are even some providers who will offer free access if you are willing to surf the Internet with numerous pop-ups from their advertisers. Some DSL Broadband Definitions Often too many people get confused with all the definitions, here we have explained in easy to understand terms.ADSL: Asymmetric Digital Subscriber Line - asymmetric meaning it's faster downstream than upstream. Internet ISPs Choosing an internet ISP is often a rash and impulsive decision, but you should put more research and time into this decision to achieve the best results. Internet ISP's are the portal by which you get onto the internet to visit websites. How to Test Your DSL and Cable Internet Connection Speed There are two measured elements that determine your internet connection speed. They are: The download rate, and the upload rate of data measured in bits per seconds. Broadband Features Internet service providers are becoming more and more present as the internet makes its way into more and more homes in America. This is making it harder to decide which ISP to subscribe to. The Coming Television Revolution The revolution is just getting started and will be begin to make its mark this year. By 2010, it will begin to take off. Whois Protocol - TCP/IP Suite The Whois protocol is an information service not unlike the finger service. The Whois protocol provides the client or user with information about the owner of a domain or specific IP address.
|
| home | site map |
| © 2006 |
