Modern networks rarely rely on pure topologies like bus, ring, or star. Most common solutions use hybrid topologies, which are combinations of features from those three.
Star-Wired Ring
As it is clear from the name, star-wired ring topology has features of star and ring topologies. You can see example of this topology from Figure 1. In this figure, purple wires represent physical ...
Unlike physical topology, logical topology does not exist in a physical form. It is a map of the logical paths that data takes, and it is not necessarily follow the physical routes.
Bus logical topology is the most common logical solution for the bus, star, or star-wired bus physical topologies. This logics can be defined, as data from one device travels ...
What are differences between Circuit, Packet and MPLS switching? Switching is a process of determining of the logical path, how data would travel between sender and receiver. Three main methods, that are commonly used in modern networks are: circuit switching, packet switching, and multiprotocol label switching.
Circuit Switching
Main feature of the circuit switching, is the connection that is being established before any ...
TCP/IP is using some of the Application layer protocols in addition to Transport and Internet layer protocols. Those protocols are used for transforming user requests to network friendly format through the TCP or UDP with IP.
Telnet
It is protocol used for remote login through the TCP/IP. It is using port 23 for the connection and behavior on the remote machine is ...
What is DDNS (Dynamic DNS) and what it is used for? DNS is used for host location and can be used effectively for that purpose, when the IP is of the host is relatively constant (static). However, nowadays, due to impossibility to assign static IP for every device in the network, most users are using dynamic IP subscription from their network ...
Computer generated processes require unique address to send and receive information. Port numbers are used for that purpose.
Process socket is a combination of host IP and process port number. Easy example is the Telnet service that is using port 23 by default. Knowing host IP address (for example 12.34.45.56) the socket address can be created (12.34.45.56:23). Even though Telnet’s default ...
DNS is the hierarchical way of associating domain names with IP addresses. It includes the network of databases and computers, together with the Application layer service. DNS is relying on multiple databases spread out across the globe, instead of using single file.
DNS can be divided to the components for effectiveness:
Resolvers are the clients that require domain name information. HTTP is ...
In the times when Internet was not bigger than 1000 hosts, all the nodes in the network relied on the single file called HOSTS.TXT that was containing list of host names and their IPs.
Today, this type of IP address association can be seen very rarely. Network is relying on the text file that looks similar to the one shown in ...
The group of computers that belong to the same company/organisation and share the part of the IP address is called domain. It can be identified by the domain name, that is usually representing type of the company/organisation.
In networking term Fully Qualified Domain Name (FQDN) is referring to a local host name together with its domain name.
Domain name consists of characters ...
DHCP lease can be either terminated by user or network administrator, or it may expire. Lease termination may be forced when the DHCP server is changed.
On Windows termination is done from Command Prompt by using “ipconfig /release” command. This command will erase all the IP, gateway, and subnet mask data from TCP/IP configuration file.
In order to request new IP data, ...
