Tuesday, December 4, 2012

Frame Relay Configurition

What's up guys? welcome back in another tutorial . Today we will learn how to configure a Frame Relay connection. As you all know Frame Relay is the newest technology in WAN. So what I want from you is to start up Packet Tracer if you don't have it you can download it from HERE . After that set up the network topology in the video and start following the instructions in the video. Then save your work and email it to me on eng.ahmed.hilal@gmail.com , don't forget to write your name and ID in the email and write Frame Relay Exercise in the Subject for 5 extra marks. THE DEAD LINE is Sat December 8 by 3:00 pm. If you have any question leave it in the comment below .
Best Regards & have a nice weekend  :)

Monday, December 3, 2012

Troubleshooting Incoming ISDN Call



Hello trainees , today we will learn how to troubleshoot an incoming ISDN call so you don't need to contact Cisco Systems' TAC (Technical Assistance Centre )

NetSim Video Tutorial - Beginner vs Advanced Mode


This NetSim tutorial explains the difference between using Beginner Mode (Console) and Advanced Mode (Telnet) when interacting with devices in Boson's NetSim Network Simulator.


Please, have a look to this video and leave your comment below if you have further questions.

Sunday, December 2, 2012

Basic ISDN Configuration


Hi trainee, today we're doing a practical lesson for the basic ISDN configuration. You have two options to complete this lesson either you use a real equipments or a simulation programme.

Saturday, December 1, 2012

NetSim Cisco simulation software!


The Boson NetSim Network Simulator is an application that simulates Cisco Systems' networking hardware and software and is designed to aid the user in learning the Cisco IOS command structure. 

NetSim utilizes Boson's proprietary Network Simulator, Router Simulator® and EROUTER® software technologies, along with the Boson Virtual Packet Technology® engine, to create individual packets. These packets are routed and switched through the simulated network, allowing NetSim to build an appropriate virtual routing table and simulate true networking. Other simulation products on the market do not support this level of functionality.
 
 
Go to this link and keep reading about NetSim somftware:

Try to download this software from the link above and test it with some WAN configurations. Send one exercise to this email attamimi.m@gmail.com to see your work and assess you!

Wednesday, November 28, 2012

We used to ask: Should you get ISDN or ADSL?

Integrated Services Digital Network and DSL both offer options for reliably accessing the Internet over telephone lines at rapid speeds. Unlike standard dial-up connections, ISDN and DSL allow you to simultaneously use the telephone and Internet on the same line. They're more frequently available in cities than small towns or rural areas. However, a comparison of ISDN and DSL reveals significant differences in speed, equipment needs, cost and other factors.



Tuesday, November 27, 2012

What is Packet Switching?

Packet switching is similar to message switching using short messages. Any message exceeding a network-defined maximum length is broken up into shorter units, known as packets, for transmission; the packets, each with an associated header, are then transmitted individually through the network. The fundamental difference in packet communication is that the data is formed into packets with a pre-defined header format (i.e. PCI), and well-known "idle" patterns which are used to occupy the link when there is no data to be communicated.

Monday, November 26, 2012

ISDN still trumps cable, DSL




IDG Integrated Services Digital Network modems will dominate the digital modem market for the next couple of years, despite a growing interest in faster, lessexpensive remote access methods, according to a recent study by Cahners InStat Group.


The preference for ISDN modems will remain relatively flat, seeing a 2 percent decline over the next two years, predicts Emmy Johnson, senior analyst for Cahners and author of Telecommuting Modern Trends The Users Perspective. The preference for Digital Subscriber Line modems is estimated to rise 10 percent and preference for cable modems to grow 5 percent over the same period, according to the study.



Sunday, November 25, 2012

ISDN 2





Are you surprise of known that too . Formerly known as OnRamp 2, ISDN 2 business phone lines transforms your existing analogue telephone line into two digital connections. ISDN2 features are;

  • Two telephone numbers on the one ISDN 2 phone service.
  • With ISDN 2 there are two digital channels capable of transferring both voice and data at bandwidth rates of 2 x 64kbps or 128kbps when 2 lines are combined
  • Only one service line is required for telephones, faxes or computers allowing you to use the other line to work remotely in the field or at home or can be used for a 2 nd voice line.
  • An ISDN2 service must be connected to an ISDN compatible PABX system at the customers premises
  • With ISDN 2 you can access a 100 Number Direct Indial (DID) range so even if you only have 2 lines you can have 100 numbers. 
So, why should we use ISDN2 Phones Lines? think about it and search the internet. let us know in the comments below for extra marks  :)  

Saturday, November 24, 2012

What is ISDN?

Integrated Services Digital Network (ISDN) is a set of communications standards for simultaneous digital transmission of voice, video, data, and other network services over the traditional circuits of the public switched telephone network. It was first defined in 1988 in the CCITT red book. Prior to ISDN, the telephone system was viewed as a way to transport voice, with some special services available for data. The key feature of ISDN is that it integrates speech and data on the same lines, adding features that were not available in the classic telephone system. There are several kinds of access interfaces to ISDN defined as Basic Rate Interface (BRI), Primary Rate Interface (PRI) and Broadband ISDN (B-ISDN).