طراحی، پیاده‌سازی و اشکال‌زدایی PPP (ویرایش دوم)

Now, the industry's #1 hands-on PPP developer's guide has been updated to reflect the latest PPP advances, including SONET/SDH, optical PPP links, the use of PPP in telecommunications, and Linux-based PPP implementation - a topic of exceptionally hot interest. In this book, leading network software architect James Carlson explains how PPP links operate, in depth, so developers can build more effective PPP implementations, and troubleshoot failures more effectively. Readers will learn how to implement and extend PPP in many environments, including Linux and UNIX. Carlson introduces PPP's growing role in telecommunications, including optical PPP links, PPP's relationship with SONET/SDH, and more. He also explains PPP's relationships to OSPF and other protocols, including PPP/L2TP integration in virtual private networks. PPP Design, Implementation, and Debugging, Second Edition is a complete and convenient resource for network system designers and administrators. This book contains everything you need to know to work with the Point-to-Point Protocol (PPP), one of the most important Internet protocols in use today. Inside you'll find clear explanations of the underlying concepts, practical implementation information, and valuable debugging techniques to keep your PPP connections running smoothly, efficiently, and without interruption. Extensively revised and expanded to cover the latest developments in PPP and network technology, this Second Edition addresses such current topics as: \* PPP in today's telecommunications infrastructure \* PPP and telephony \* Optical (SONET/SDH) PPP links \* The relationship between PPP and routing protocols (such as OSPF) \* Security services, including RADIUS \* PPP and L2TP virtual private networks \* The design of the popular ANU ppp-2.3 implementation PPP Design, Implementation, and Debugging, Second Edition provides an overview of PPP design and operation, and follows PPP in detail through each of its three main stages--link establishment, authentication, and data transmission. Each PPP protocol is described in depth, including LCP (Link Control Protocol), CCP (Compression Control Protocol), and ECP (Encryption Control Protocol). PPP's relationship to other networking protocols is also examined. In addition, this book offers an experience-based troubleshooting guide that describes proven solutions to common PPP problems. The accompanying CD-ROM contains samples of PPP implementations and many useful reference documents.

PPP Design, Implementation, and Debugging, Second Edition, is a complete and convenient resource for network system designers and administrators. This book contains everything you need to know to work with the Point-to-Point Protocol (PPP), one of the most important Internet protocols in use today. Inside you'll find clear explanations of the underlying concepts, practical implementation information, and valuable debugging techniques to keep your PPP connections running smoothly, efficiently, and uninterrupted.

Extensively revised and expanded to cover the latest developments in PPP and network technology, this second edition addresses such current topics as:

• PPP in today's telecommunications infrastructure
• PPP and telephony
• Optical (SONET/SDH) PPP links
• The relationship between PPP and routing protocols (such as OSPF)
• Security services, including RADIUS
• PPP and L2TP virtual private networks
• The design of the popular ANU ppp-2.3 implementation

PPP Design, Implementation, and Debugging, Second Edition, provides an overview of PPP design and operation, and follows PPP in detail through each of its three main stages—link establishment, authentication, and data transmission. Each PPP protocol is described in depth, including LCP (Link Control Protocol), CCP (Compression Control Protocol), and ECP (Encryption Control Protocol). PPP's relationship to other networking protocols is also examined.

In addition, this book offers an experience-based troubleshooting guide that describes proven solutions to common PPP problems.

Point-to-Point Protocol (PPP) is used for most of the links in the Internet. When you visit a website or read your email the information flows through at least 2 or 3 PPP links. Like all Internet standards, PPP was developed in a public forum, but it remains somewhat ill-specified and many poorly implemented versions of PPP exist. By explaining the ways in which the protocol is intended to work, this book allows network designers, administrators, and progammers to understand how to work with and maintain these links. There are a wide variety of implementation strategies, plenty of code, and tips throughout the book. Revised and updated, this book covers PPP use in telecommunications infrastructure, optical PPP links, SONET/SDH, and telephony.