X.25 Course X25 Training Classes and Tutorials

Why this X25 course?

This course provides an essential coverage of:

X.25 networks and technology
Markets and applications for X.25
X.25 systems and their operation
X.25 network troubleshooting techniques
The applications that are typically served by X.25, and its future uses.

Who should attend this X25 course

This course is essential for all staff who will install, configure, administrate, support, sell, or market X.25 networking products services, or solutions.

X25 Course Pre-requisites

Delegates must have a good understanding of data communications principles, prior to attending. Course 301: Introduction To Data Communications and Networking, is recommended.

Lifetime Post-Course Support

After completing this X25 training course, delegates receive lifetime post-training support from LEVER Technology Group PLC, to help them apply the technologies and skills they have learned with us, to provide career-long support, and to ensure they are better equipped for their future roles in IT and networking.

X25 Training Course Content

Introduction

Development of the OSI concept and the OSI 7 Layer Model
Structure of the 7 Layer model
Positioning X.25 within the model

X.25 Layer 1 scope and operation

X.21, X.21 bis V.24, X.21 bis V.35, RS232, RS 449

X.25 Layer 2 scope, features and facilities and operation

Requirements of a link level protocol
LAPB frame format
Link initialisation and shut down procedures
Errored frame detection
Errored frame recovery
Link assurance facilities
Link level timers

X.25 Layer 3 scope, features, facilities and operation

Function of layer 3 protocols
Packet Assembly/Disassembly
Packet encapsulation
The packet header
Logical channels and virtual circuits
Network user addresses
Call set up and clear packet types
Cause and diagnostic codes
Data and supervisory packets
Delivery confirmation
The D BIT
Layer 3 flow control
Extended mode numbering

Advanced Layer 3 facilities

Call facilities: reverse charging, fast select types, throughput class, packet and window size negotiation, closed user groups, source rotatry hunting and call diversion
Packet segmentation
The M BIT
Level 3 timers

Associated PAD protocols

X.3, X.28, and X.29 operation

Packet Switched Network Management

OSI network management model
X.25 key indicators
X.25 troubleshooting techniques and protocol analysers

X.25 Network sizing and design

Assessing user throughput requirements
Switch and trunk sizing
Building in resilience
Diverse routing
Internetworking with other X.25 networks
Requirements of gateway switches
Providing address translation with the user data field
Internetworking with non X.25 networks: TCP/IP, Ethernet, ISDN, Frame Relay, and ATM

X.25 Case Study

X.25 The future

The future of X.25 as a global technology, and how it compares with systems such as Frame Relay, ISDN, ATM and the Internet.

X.25 Packet Switching Networks — a 2-day X25 training course

A comprehensive coverage of X.25 packet switch networks and associated technologies and associated technologies