Category: Networking
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MAN (Metropolitan Area Network)
MAN is called a metropolitan area network and it is a subset of WAN, the coverage area of MAN is lesser than WAN but more than LAN, LAN is a subset of MAN, MAN has multiple devices connected, LAN Range and proximity is way smaller than WAN, MAN is a complex and sophisticated in nature, maintenance, and development of…
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LAN
LAN (local area network) is a set of devices that are connected with each other locally, LAN can be established via ETHERNET and WIFI, and LAN SERVERS CAN BE CONNECTED AND SYNCHRONIZED WITH EACH OTHER via LAN CLIENTS. LAN consists of devices that are clustered together in a physical layer, LAN doesn’t cover large geographical areas like…
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ICMP
ICMP is a network layer protocol (IP layer protocol). ICMP is for IPV4 and is defined in RFC 92. ICMP for IPV6 is defined in RFC 4443. The Structure of ICMP is : TYPE | CODE | CHECKSUM | CONTENT (header of ICMP) ICMP is leveraged for diagnostic and control purposes. Many command line utilities are based on ICMP, ICMP is the network protocol…
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ARP (Address Resolution Protocol)
ARP is an address resolution protocol, The ARP protocol is utilized to resolve IP to MAC ADDRESS. (ARP maps IP and MAC) ARP request is sent | ARP response is received. ARP operates in the data-link layer and network layer. IP -> Network layer protocol and addressing MAC —> Data– layer addressing The devices whose IP ARP is looking will be sent via…
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WIFI (Wireless Tech)
Wifi is referred to as wireless technology, the majority of the devices around us are controlled with the help of WIFI. The mobile phone and computers are connected to WIFI VIA NICs (network interface cards). Primarily modern devices are based on wireless tech because wire can be a bit cumbersome and in complex situations can result in BAD CABLE MANAGEMENT. Wifi is clearly defined in IEEE STANDARDS. WIFI…
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TCP (Transmission Control Protocol)
TCP is the layer 4 networking protocol of the OSI model, TCP is responsible for the networking capabilities, both TCP and UDP are placed in the LAYER 4 OSI MODEL, TCP sends packets across the internet and makes sure that the packets are transferred securely, consistently and efficiently. TCP connection is established by 2 servers and once the TCP session is established, DATA packets can be sent across TCP. TCP leverages the THREE…