How Does Internet Work

Port Numbers – How does Transport layer identifies the Conversations

Computers are today equipped with the whole range of different applications. Almost all of these applications are able in some way to communicate across the network and use Internet to send and get information, updates or check the correctness of user purchase. Consider they all these applications are in some cases simultaneously receiving and sending e-mail, instant messages, web pages, and a VoIP phone calls. In this situation the computer is using one network connection to get all this communication running. But how is it possible that this computer is never confused about choosing the right application that will receive a particular packet? We are talking about the computer that processes two or more communications in the same time for two or more applications running.

This is a list of Internet socket port numbers used by application communication with TCP and UDP on the Transport Layer of the Internet Protocol Suite for the host-to-host communications.

Let’s see who makes it possible? The Internet Assigned Numbers Authority (IANA) assigns all port numbers except Dynamic or Private ports. IANA is a standards organization in the world that is responsible for assigning various addressing standards.

There are different types of port numbers: Well Known Ports (Numbers 0 to 1023), Registered Ports (Numbers 1024 to 49151) and Dynamic or Private Ports (Numbers 49152 to 65535). The last porn number type Dynamic or Private Ports will not appear on our list because they are cannot be registered with IANA. This range is used for custom or temporary purposes and for automatic allocation of ephemeral ports. They are usually assigned dynamically to client applications when initiating a connection. It is not very common for a client to connect to a service using a Dynamic or Private Port, sometimes some peer-to-peer file sharing programs do.

Protocol-messaging solution – SMPP – Short Message Peer-to-Peer

Telecommunication industry’s protocol “SMPP” is used to exchange messages (SMS) between the peer entities e.g. short messages offering services centers. This protocol is capable to submit messages in bulk by a third party such as news organization. Anyhow, the main function of short message peer-to-peer protocol is to switch over the SMS messages between two be aware of each other entities.

Real-time voice along with video communication can be attained with the internet standard SIP (Session Initiation Protocol). That was initiated by the IETF (Internet Engineering Task Force) and you can find it in published form from RFC 3261. As for live communications, internet protocol “SIP” is used for establishing voice and video calls and within an IP network, one or more than one participant can whether create, alter, or end sessions with the help of this signaling protocol. It is very important in explanation of the functionality of the VoIP technology as one of the Voice over IP protocols. But at this point of learning about SIP, first you have to understand the term “session” within a communicating network. Actually, it is a clear-cut two-way phone call procedure. But in case of multi-media conference session, it can be consisted on loads of participating persons.

If we speak about what is networking and then try explain how does networking work or maybe how does internet work in some technical way, soon we will have to mention the routing protocols. We should mention routing protocols as the most important networking protocols when it comes to transfer packets from origin to destination points on the network. After all they are responsible for finding the best way across our multipath network.

What is Routing and what Static and Dynamic routes means?
In the theory of networking, we must mention the concept of routing to help explain how networking works and what exactly is networking. Simply, the word “routing” is meant by map-reading or direction-finding. But in the computer’s world, it is a system for forwarding the information from some network node to another over an internetwork such as from a starting point (source) to its ending point (destination).

Downtime is the period in which your network is not responding or is in some way not functional. Avoiding network downtime is important for a bunch of reasons, not only for the money that downtime can cost you or your company.