Mobile Newsletter chat dots. Mobile Newsletter chat avatar. Mobile Newsletter chat subscribe. Computer Hardware. What is a packet? Updated: Mar 30, Network Packet Structure " ". I've heard that data travels in packets on a computer network. What is a packet, and why do networks use them? Length of packet some networks have fixed-length packets, while others rely on the header to contain this information Synchronization a few bits that help the packet match up to the network Packet number which packet this is in a sequence of packets Protocol on networks that carry multiple types of information, the protocol defines what type of packet is being transmitted: e-mail, Web page, streaming video Destination address where the packet is going Originating address where the packet came from.
Everything you do on the internet is done in packets. This means that every webpage that you receive comes as a series of packets, and every email you send to someone leaves as a series of packets. Networks that send or receive data in small packets are called packet-switched networks. Why is data divided into packets? Data is divided into packets because it makes the network more efficient. It allows the network to balance the load across various pieces of equipment on a millisecond-by-millisecond basis.
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Fios Internet. Home Phone. Speed Test. Download My Fios App. An incoming data packet has to get to the computer that requested it -- that's one of the router's jobs. The router discovers all of the computers and devices connected to the network and acts as the gatekeeper. If the packet is coming from an outside host, the router directs the packet from the modem to the computer that's supposed to receive the data.
Additionally, the router also handles sending the outgoing packet requests to the modem. The router's next job after determining the path it's going to send a data packet is to transmit the packet to its next stop on its destination. When dealing with a host across the Internet, the router transmits the incoming data that it receives from the modem to the computer or from the computer to the modem, which sends the information across the Internet to the host.
Dan Stone started writing professionally in , specializing in education, technology and music. For example, you can ping Google by entering "ping google. Pinging google. Ping statistics for If all four packets sent were also received, then you have a connection to the website or computer. If none of the packets were received, then there's a problem somewhere between the two.
Download and install the Microsoft Network Monitor if you don't already have it; the program is available for free from the Microsoft Download Center.
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