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You're reading from Network Analysis using Wireshark 2 Cookbook Practical recipes to analyze and secure your network using Wireshark 2

Product type Paperback

Published in Mar 2018

Publisher

ISBN-13 9781786461674

Length 626 pages

Edition 2nd Edition

Tools

Wireshark

Concepts

Network Security

Authors (3):

Nagendra Kumar Nainar

Yoram Orzach

Yogesh Ramdoss

View More author details

Table of Contents (25) Chapters

Title Page

Dedication

Packt Upsell

Contributors

Preface

1. Introduction to Wireshark Version 2 FREE CHAPTER

2. Mastering Wireshark for Network Troubleshooting

3. Using Capture Filters

4. Using Display Filters

5. Using Basic Statistics Tools

6. Using Advanced Statistics Tools

7. Using the Expert System

8. Ethernet and LAN Switching

9. Wireless LAN

10. Network Layer Protocols and Operations

11. Transport Layer Protocol Analysis

12. FTP, HTTP/1, and HTTP/2

13. DNS Protocol Analysis

14. Analyzing Mail Protocols

15. NetBIOS and SMB Protocol Analysis

16. Analyzing Enterprise Applications' Behavior

17. Troubleshooting SIP, Multimedia, and IP Telephony

18. Troubleshooting Bandwidth and Delay Issues

19. Security and Network Forensics

Index

Analyzing spanning tree problems

All of us have worked with, or at least heard about, Spanning Tree Protocol (STP). The reason I call this recipe Analyzing spanning tree problems is that there are three major versions of it, as follows:

STP: This is an IEEE 802.1D standard from 1998, called 802.1D-1998
Rapid Spanning Tree Protocol (RSTP): This is an IEEE 802.1W standard from 2001, later added to 802.1D, called 802.1D-2004
Multiple Spanning Tree (MST): This was originally defined in IEEE 802.1S and later merged into IEEE 802.1Q

There are also some proprietary versions from Cisco and other vendors. In this recipe, we will focus on the standard versions and learn how to troubleshoot problems that might occur during STP/RSTP/MST operations.

Getting ready

The best way to find STP problems is to log in to the LAN switches and use the vendor's commands (for example, Cisco IOS or Juniper JUNOS CLI) to find and fix the problem. If you have properly configured SNMP on your network device, you will get all...