IT-инфраструктура

IT-инфраструктура

It's complicated about simple things. Everything you would like to know about SFP modules. Part 1. Evolution of modules and basic concepts

Greetings, colleagues! It's again @ProstoKirReal . In the last series of articles, I discussed with you how the Internet works ( Part 1 , Part 2 , Part 3 , Part 4 , Part 5 ), but I deliberately left out the most important part - how bits of data are transmitted over local network

IT-инфраструктура

It's complicated about simple things. How the Internet works. Part 5. The future (is it?) of networks: IPv6, SDN and Overlay networks

Greetings, colleagues! My name is @ProstoKirReal . I'd like to discuss how the Internet works. We'll start with twisted pair cables that connect simple local area networks, and end with submarine communications cables that connect continents and major carrier networks. IN previou

IT-инфраструктура

It's complicated about simple things. The most popular L3 and L4 headers of the OSI model

Greetings, colleagues! My name is @ProstoKirReal . IN previous article I talked about the most popular headlines on L2 OSI model level. Today I'd like to talk to you about meaningful headlines at the level L3 (network level) and level L4 (transport) OSI model. This part is final

IT-инфраструктура

It's complicated about simple things. The most popular L2 headers of the OSI model in Ethernet

Greetings, colleagues! My name is @ProstoKirReal. Today we will discuss headers related to the L2 layer of the OSI model in an Ethernet frame. ❯ Why is this article needed? I often find myself needing to quickly find information about various protocols and their headers, so I dec

IT-инфраструктура

It's complicated about simple things. Transport layer (L4) of the OSI model

Greetings, colleagues! My name is ProstoKirReal , and today we will continue our journey through the OSI model by discussing the transport layer (L4). This layer plays a key role in ensuring reliable data transfer. Previous parts: It's complicated about simple things. Physical la

IT-инфраструктура

It's complicated about simple things. Network layer (L3) of the OSI model

Greetings, colleagues! My name is ProstoKirReal , and today we will continue our journey through the OSI model by discussing the network layer (L3). This layer is responsible for routing data between different networks. Previous parts: It's complicated about simple things. Physic

IT-инфраструктура

It's complicated about simple things. Link layer (L2) of the OSI model

Greetings, colleagues! My name is ProstoKirReal , and today we Let's continue studying the OSI model , discussing the link layer (L2). This layer plays a key role in ensuring reliable data transmission in local networks. Before we get acquainted with this level, we need to know o

IT-инфраструктура

It's complicated about simple things. Physical layer (L1) of the OSI model

Greetings, colleagues! My name is ProstoKirReal , and today I want to discuss with you the physical layer (L1) of the OSI model. Understanding this level is fundamental for everyone who is just starting their journey in network technologies. ❯ What is the physical layer? The Phys