Computer Networking Protocols and Standards
T-Carrier - A Complete and Comprehensive Guide
T-carrier was introduced in 1962 by AT&T Bell Laboratories. A T1 line has the capacity of transmitting 1.544 Mbps and it can also be used to send 24 digitized voice channels. Dispite its age, because of its reliability, T-carrier is the most commonly used digital transmission service in the US, Canada, and Japan. More ...
Comparison of the Layers of the OSI and TCP/IP Models
The TCP/IP protocol suite was developed by DARPA in the early 1970s. The OSI networking
model was developed in Europe in 1986. This article compares the two networking standards. More ...
Kerberos Authentication Protocol
Kerberos is an authentication protocol which allows computers communicating over a
non-secure network to prove their identity to one another. Windows 2000 and later
use Kerberos as their default authentication method. More ...
IPv4 Address Classes
Originally, IP network numbers were defined with rigid boundaries and grouped into address
classes. Even though address classes was created to facilitate efficient use of the IPv4
address space, because of its rigidity it has been abandoned for more flexible classless addressing. More ...
Free eBook: Introduction to 802.11 Wireless
The growth of wireless mobile devices is incredible. If you're an IT professional you'll need
to understand wireless technology. This free ebook by Aaron Balchunas explains everything
from radio frequency to wireless authentication protocols. More ...
Wireless Standards - 802.11a 802.11b 802.11g 802.11n 802.11i Explained
The IEEE 802.11 family of standards which provides for Wireless Ethernet or (Wi-Fi) has
evolved over the years. This article explains the differences between 802.11a 802.11b
802.11g 802.11n and 802.11i. More ...
OSI Transport Layer
The Transport layer (OSI layer 4) uses connection-oriented protocols to provide a
reliable end-to-end connection between the source computer and the destination computer.
Transmission Control Protocol (TCP) is a transport layer protocol. More ...
Classless IP Addressing
In the beginning, classful addressing was a great idea for keeping IP addresses organized. But as the
Internet grew, and IP addresses became scarce, classful addressing was found to be too limiting.
Classless IP addressing, known as Inter-Domain Routing (CIDR) was released in September 1993. More ...
Dynamic Host Configuration Protocol (DHCP) Explained
In the early days of TCP/IP each device on a network had stored on its hard disk a
configuration file that an administrator used to manually assign a static IP address.
Today a network administrator is no longer required to maintain an IP and MAC address
configuration file a server. Every device on a network is automatically assigned a
unique IP address by Dynamic Host Configuration Protocol (DHCP). More ...
IP version 6 (IPv6) Advantages and Implementation
The Internet has, to all intents and purposes, run out of public IP version 4 addresses. The solution
to this issue is new IP version 6. This would require a parallel IPv6 based Internet to be running
until all IPv4 connections have been converted. More ...
Systems can deliver packets only to other devices attached to the same physical network. A gateway is a network point, referred to as a router, that acts as an entrance to another network. More ...
Looking at the OSI 7 Layer Reference Model
The OSI (Open Systems Interconnection) model is a 7 layer reference model for how applications can communicate over a network. Don't confuse The OSI model with TCP/IP Protocol which has 4 layers and is the actual architecture used for networking. More ...
Video - Network Layer (Layer 3) of OSI Networking Model
In this video by Kevin Wallace you learn about the Network Layer of the OSI networking model. More ...