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Implementing Cisco Networking Solutions

You're reading from Implementing Cisco Networking Solutions Configure, implement, and manage complex network designs

Product type Paperback

Published in Sep 2017

Publisher Packt

ISBN-13 9781787121782

Length 436 pages

Edition 1st Edition

Tools

Cisco

Concepts

Networking

Author (1):

Harpreet Singh

View More author details

Table of Contents (19) Chapters

Title Page

Credits

About the Author

About the Reviewer

www.PacktPub.com

Customer Feedback

Dedication

Preface

1. Network Building Essentials FREE CHAPTER

2. Networks for Digital Enterprises

3. Components of the Enterprise Network

4. Understanding and Configuring Campus Network Technologies

5. Understanding and Configuring Wireless Access Technologies

6. Understanding and Configuring WAN Technologies

7. Understanding and Configuring Data Center Technologies

8. Understanding and Configuring Network Security

9. Understanding and Configuring Quality of Service

10. A Systematic Approach to Network Management

11. Basic Troubleshooting Skills and Techniques

Optimizing the WAN

A WAN link is a critical part of the network, as this is the network segment that is most prone to failures, adds the maximum amount of latency in communications, and is bandwidth constrained. WAN links are generally the choke points on the network from an end-to-end bandwidth perspective. WAN bandwidth is expensive, and hence organizations tend to optimize the WAN utilization.

Most of the communication on the WAN link is TCP/IP. TCP uses a flow control mechanism that restricts the rate at which users can send data on the network. Any loss of packets on the link leads to retransmission of TCP segments, therefore wasting bandwidth. The loss of packets is sensed by the receiving host when the acknowledgment for a given segment doesn't arrive within a specified time duration. This can happen due to link congestion, and it is possible that even though the transmission was received by the receiver, the transmitting node retransmits the packets. This can cause artificial congestion...

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Authors (1)

Harpreet Singh

Harpreet Singh

Harpreet is a professional with 8+ years of experience in the field of Ethical Hacking, Penetration Testing, Vulnerability Research & Red Teaming. He is the author of "Hands-On: Web Penetration Testing with Metasploit" and "Hands-On: Red Team Tactics" published by Packt Publishing. He's also an OSCP, OSWP, CRTP certified professional. Over the years of his experience, Harpreet has acquired the Offensive & Defensive skill set. He is a professional who specializes in Wireless & network exploitation including but not limited to Mobile exploitation, Web Application exploitation and he has also performed few Red Team Engagements in Banks & Financial Groups.

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