What is Internet Protocol (IP)?
Internet Protocol (IP) is a protocol, or set of rules, for routing and routing data packets so that they can travel across networks and reach the correct destination. Data traversing the Internet is broken into smaller pieces called packets. IP information is attached to each packet, and this information helps routers send packets to the right place. Each device or domain that connects to the Internet is assigned an Internet Protocol address, and as packets make their way to the attached IP address, the data gets to where it is needed.
Once packets reach their destination, they are handled differently depending on the transport protocol used with the IP. The most common transport protocols are TCP and UDP.
What is the network protocol?
In networking, a protocol is a standard way to perform certain actions and coordinate data so that two or more devices can communicate and understand each other.
To understand why protocols are important, consider the process of sending an email. On the envelope, addresses are written in the following order: name, address, city, state, and zip code. If an envelope is dropped into a mailbox with the zip code written first, followed by the street address, followed by the state, etc., the post office will not deliver it. There is an agreed protocol for writing addresses in order for the postal system to work. In the same way, all IP data packets must present certain information in a certain order, and all IP addresses follow a unified format.
What is an Internet Protocol address? How does an IP address work?
An Internet Protocol address is a unique identifier assigned to a device or domain that connects to the Internet. Each IP address is a string of characters, such as “192.168.1.1”. With DNS resolvers, which translate human-readable domain names into IP addresses, users can access websites without memorizing that complex string of characters. Each IP packet will contain both the IP address of the device or domain sending the packet and the IP address of the intended recipient, just like both the destination address and sender address are included in an email message.
IPv4 vs. IPv6
The fourth version of IP (IPv4 for short) was introduced in 1983. However, just as there are only a limited number of possible permutations of license plate numbers and they must be reformatted periodically, the available IPv4 addresses have been exhausted. . IPv6 addresses contain more characters and therefore more permutations; However, IPv6 is not yet fully adopted and most domains and devices still have IPv4 addresses. For more information about IPv4 and IPv6, see What is my IP address?
Also Read, Telecommunications Technology
What is an Internet Protocol packet?
Internet Protocol packets are generated by adding an IP header to each data packet before it is sent on its way. The IP header is just a string of bits (ones and zeros) and records various pieces of information about the packet, including the sending and receiving IP address. The IP headers also indicate:
- Head length
- Package length
- Time to Live (TTL), or the number of network hops a packet can make before being discarded
What transport protocol is used (TCP, UDP, etc.)
- In total, there are 14 information fields in the IPv4 headers, although one of them is optional.
How does Internet Protocol routing work?
The Internet consists of large interconnected networks, each of which is responsible for certain groups of IP addresses; These large networks are known as autonomous systems (AS). A variety of routing protocols, including BGP, help route packets through AS based on their IP addresses. Routers have routing tables that indicate which AS packets must be traversed in order to reach the desired destination as quickly as possible. Packets travel from AS to AS until they reach a packet that takes charge of the destination IP address. Then the AS forwards the packets internally to the destination.
Protocols enclose packet headers at different layers of the OSI model:
Packages can take different routes to the same place if necessary, just as a group of people driving to an agreed-upon destination can take different routes to get there.
What is TCP/IP?
Transmission Control Protocol (TCP) is a transport protocol, which means it dictates how data is sent and received. A TCP header is included in the data portion of every packet that uses TCP/IP. Before transmitting data, TCP opens a connection with the recipient. TCP ensures that all packets arrive in order once transmission begins. Through TCP, the recipient will acknowledge receipt of each packet that arrives. Missing packets will be resent if not acknowledged.
TCP is designed for reliability, not speed. Because TCP has to make sure that all packets arrive in order, loading data over TCP/IP can take longer if some packets are missing.
TCP and IP were originally designed to be used together and are often referred to as the TCP/IP suite. However, other transport protocols can be used with IP.
What is UDP/IP?
User Datagram Protocol, or UDP, is another widely used transport protocol. It is faster than TCP, but it is also less reliable. UDP does not ensure that all packets are delivered and in order, and it does not establish a connection before starting or receiving transmissions.