How fast a pace?

The reason why every email you send is always up to their destination because due to "tag", which contains information about the destination. Like a bag at the airport. However, "tags" (often known as "headers" in the computer world) there are values that must be charged on the bandwidth for any data sent over TCP (Transmission Control Protocol) over the Internet simultaneously. "Tag" it will burden your bandwidth by 13% (thirteen percent).


A speed measuring site on the internet does not show the actual numbers. Because many factors influence the speed test at each site. This can be caused by:

1. Differences path (routing) is different between the backbone of one another.
2. Ability of the site provider's server receives the data.
3. Owned provider of large bandwidth speed test site itself.
4. Specification of computers used when doing the speed test.
5. In other words these sites is just an illustration that can be estimated only temporary.

SPEED Enemies

Enemy 1: Badly configured PCs
The single most common cause of poor performance is a Computer That Is in poor shape for broadband. The usual problems are:

* Insufficient memory (128MB is really the lower limit now for any computer);
* Underpowered processor (vintage computers from the early 90s with a central processing unit slower than 400MHz);
* An aging and unstable operating system, accumulation of shareware, particularly spyware etc;
* Over-clocked motherboards cause unusual problems.

Enemy 2: Packet losses
The Internet is a resilient network originally built to withstand a nuclear war. One reason for this strength is TCP, the network protocol That makes sure your data gets from one point of the Net to another.

TCP is Designed around the Assumption That Some parts of an e-mail message, for example May not get through the Net.

Thus, an e-mail message to be transferred gets broken down into "packets". For example, five packets will of attempt to take the fastest route to reach the destination, and Pls do they want, the five packets will of "combine" to form the original e-mail message.

For the sake of an example, let's imagine you are downloading data from www.microsoft.com, and one of Those many packets streaming down to you disappears en-route.

Maybe a random failure or outage knocks a network router for a microsecond, and the packet is dropped. At your end, your computer notices the missing packet in the stream of sequence numbers, and so does not acknowledge its reception.

The sender notices the lack of acknowledgment, and must re-transmit the lost data. The retransmission procedure adds to the amount of data flowing over the connection, slowing down the entire transfer.

There are many TCP copes with Airways That That networks are down. But in the end, consistent packet loss along a long internet link means the Internet traffic is often slower than it Should be, even though it May be one packet in ten or twenty That is being dropped.

If the there is continuous packet loss Between you, and your favorite sites, then Web pages or files Transfers, Which follow the TCP protocol, are going to slow down to a crawl.

If you see extremely slow performance from a particular website, then you can do a ping test, Which shows how many packets are lost along the way.The instructions are as follow:

* Go to a MS-DOS prompt, and type ping-t www.download.com (or any website you want to test with)
* Watch the sequence numbers printed. Leave it running for a short time, say 30 seconds, then press control-c.
* If you see 5% or more packet loss, then TCP performance is going to be poor over this link.
* If no packets get through at all, May you have found a server That does not respond to ping packets (Some servers do this as a security measure).
* In That Case, use the command tracert (traceroute), to identity the server That is one hop from the target server, and try pinging That instead.

To do a traceroute, the instructions are as follow: -

* Open a MS-DOS window (command prompt) and use tracert, to work out at what point the congestion May be.
* For example, tracert www.download.com. Trace route shows May Nowhere in the chain Between you and your destination the problem starts, and its nature.

Enemy 3: Many servers Can not currently offer high speeds to you
Mnet though strives to offer the fastest connectivity to the rest of the world, Sometimes the weakest, or slowest, the link is the one That your website uses to connect to the Net.

Here Are Some results of a speed test connected to Trust websites reasonably well, at 12am in the morning (off peak):

In this example, Microsoft and myisp.com would not Provide the "broadband experience" to any user they want WHO thought Had speeds of 768kbps or more.

Many servers offer speeds far slower than even this, Because They are busy, and you are sharing on their bandwidth with dozens of other people.
Servers

File

Speed
1.6mb ftp.netscape.com 310k/sec
2.0mb ftp.aol.com 280k/sec
5.0mb ftp.microsoft.com 67k/sec
5.0mb ftp.myisp.com 66k/sec

All websites have pipes connecting to the Internet on their web servers. To Ensure That all users access to WHO on their sites do not get Rejected, the bandwidth of the Internet on their pipes are sliced and divided equally Among all users trying to access on their site at any one time.

So if the number of users is low, your will of some higher speeds, but if the number of users is high, much slower speeds Can be Expected.

For Indonesia's Internet users, 12am Indonesia time Is peak hour for Internet traffic in the United States. May this mean to people surfing slowdowns to U.S. websites, Because they want have to Compete for bandwidth with the rest of the American users.

Source: ipoelnet.blogspot.com