Introduction The Internet is a web of interconnected devices that communicate using protocols. One such protocol is the Internet Control Message Protocol (ICMP), which helps network devices diagnose communication issues. ICMP protocol plays a significant role in determining whether the data is reaching its intended destination on time or not. Typically, routers and other network […]
Read MoreIntroduction One of the most important concepts in routing is administrative distance (AD). AD is a metric that determines the reliability or trustworthiness of a routing source. With the help of AD value, routers can easily choose the best route among multiple routes to the same destination. In this blog, we will explain the concept […]
Read MoreIntroduction If you want to control a server or machine that is physically inaccessible, you need to communicate with it remotely. However, not all remote strategies are stable and secure. For example, older protocols like Telnet or rlogin ship your commands and passwords in simple text, which can effortlessly be intercepted by means of hackers […]
Read MoreIntroduction The Internet is a vast network where a number of devices are connected with the help of IP or Internet Protocol. IP addresses are numerical identifiers that are used to uniquely identify each device that is available inside the network. As we all have seen, the internet is growing exponentially day by day, resulting […]
Read MoreIntroduction In a network, routers communicate with one another via different routing protocols available. Routing protocols help routers in order to choose the best path to a destination and also maintain the routing table. There are several types of routing protocols each with different functionalities, some of which are path vector, link state, and distance […]
Read MoreIntroduction You might have heard of CEF if you are working closely with network switches and routers. Cisco Express Forwarding or CEF is an advanced layer 3 switching technology that is used particularly in large networks or the Internet in order to enhance the overall performance of the network. CEF is a kind of feature […]
Read MoreIntroduction Have you ever faced a scenario where you want more bandwidth than what your network link can provide? Or have you ever experienced a network outage because of a single link failure? If yes, then you are probably interested in EtherChannel. It is a port link aggregation technology that groups together more than one physical […]
Read MoreIntroduction Routing and routed protocols are two critical principles in computer networking that confuse many students. Both are associated with the network layer of the OSI model, which is responsible for offering logical addressing and routing packets across different networks. Both have specific features and traits. In this blog, we will explain routing protocol vs […]
Read MoreIntroduction The Internet is an extensive network of connected devices, each with an individual identification number known as an IP address. People find it extremely challenging to memorize numbers, especially since IP addresses are dynamic and can change over time. As a result, a mapping is needed to convert a website’s domain name, such as […]
Read MoreIntroduction If you are interested in computer networking, you might have heard of MTU and MSS. But what they really are and why one should study these concepts in detail. MTU and MSS are important concepts as they help determine the size of each packet sent across the network without getting into the fragmentation phase. […]
Read MoreIntroduction If you have ever used a computer network, you have probably wondered how data gets sent and received without problems. How does the network determine whether the data has been tampered with or corrupted? How does it deal with noise and interference, which might degrade signal quality? Frame Check Sequence (FCS) is the solution. […]
Read MoreIntroduction OSPF, which stands for Open Shortest Path First, is a link-state routing protocol that calculates the shortest course or path to any destination inside the network using the Dijkstra algorithm. However, OSPF has several limitations, mainly in terms of non-broadcast multi-access (NBMA) networks such as Ethernet or Frame Relay. In these networks, more than […]
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