Understanding TCP/IP and OSI Models will help you visualize how Network Protocols work together to establish Network connections among network devices and be able to exchange information. There are too many ways to understand TCP/IP and OSI Modules concept, the most known way is to compare or map the modules to Post Office’s departments since… Continue Reading …
Understanding Packet Flow Across the Network Part1
I remember the first time asking myself, how the heck IP Packets flow across the network? Well, Understanding Packet Flow Across the Network Part1 and Part2 will show you a clear picture of how Routing and Forwarding decision is made inside a Network device. To explain how packets flow across Network Devices (internally or externally),… Continue Reading …
Understanding Packet Flow Across the Network Part2
Understanding Packet Flow Across the Network Part2 will complete the Packet’s flow process. Part1 showed you how PC1’s TCP/IP Stack requested a web page from ccnahub.com’s Web Server, hence generated one way Packets across the network. Part2 will show you how the web server received, processed, and responded back to PC1 with the web page… Continue Reading …
Understanding Ethernet LAN Standards
Each language got it’s own grammar, rules, regulations, and standards, and Ethernet is no exception. Understanding Ethernet LAN Standards will introduce to the most famous language used at the media level. In order to deal with Ethernet language, you have to understand and grasp its standards. Standards can be speed, cables length, cable pinouts, cable… Continue Reading …
Understanding Ethernet MAC Addresses
Media Access Control meant to to be a Physical Hardware Address System used by Ethernet. Understanding Ethernet MAC Addresses will help you grasp how Ethernet transfer frames filled with packets across network devices using MAC Addresses format. So, if Network Layer package Packets using IP Addressing system which is a logical Addressing system, then Ethernet… Continue Reading …
Understanding WAN Technologies
The moment packets hit the Router’s internet Interface, they become at what is called WAN. Understanding WAN Technologies and why Networks were divided to Local Area Networks (LAN and Wide Area Network (WAN) will help you distinguish among what I call Packet Carriers Technologies which carry generated Packets among Network devices from hop to hop.… Continue Reading …
Understanding Data Link Layer Encapsulation
Understanding Data Link Layer Encapsulation will answer an important question: Why layer 2 uses different set of protocols for different type of cables to Encapsulate Frames? Well, nowadays, Ethernet cables (Copper or Fiber) and its Encapsulation protocol dominate both Network types – LAN and WAN. Having said this, each different WAN Technology such PPP, HDLC,… Continue Reading …
Understanding EoMPLS WAN Technology
Just another New Type of lease line. Understanding EoMPLS WAN Technology will explain why the Ethernet almost dominated both networks types – LAN and WAN. Ethernet over Emulation Multi-Protocol Label Switching (EMPLS) responded to the exponential growth of the internet over the passed years, MPLS became the preferred backbone by ISP providers to provide your… Continue Reading …
Understanding IP Routing Process Concept
Understanding IP Routing Process Concept explains how Routing and Forwarding decision is made based on intelligent information. Network Layer is the decision makers when it comes to IP Packet Routing, Data Link Layer takes care of Frame Forwarding. When it comes to IP packet routing, action is based on IP Protocol, Network cost, Routing Table, Next… Continue Reading …
Understanding Web Browser DNS Lookup
Understanding Web Browser DNS Lookup function will show you what’s happening behind the seen when PC1’s Web Browser request a web page from Remote Host such Web Server or Hosting Server. The key piece used to Resolve Human Names into matching IP addresses is is Domain Name System (DNS) or Nameservers. So, imagine that every… Continue Reading …
- 1
- 2
- 3
- …
- 8
- Next Page »
