![]() ![]() Consider the figure below, in which two switches are connected to each other with multiple path. What are the reasons behind a network loop?Ī network loop occurs when there is more than one path exists between the source and destination.How does a switch know if a frame is broadcast, multicast or unicast?.What is broadcast, multicast, unicast and how does it work?. ![]() Stop guessing and start troubleshooting the problems on your network. Practical Packet Analysis is a must for any network technician, administrator, or engineer. Use advanced Wireshark features to understand confusing capturesīuild statistics and reports to help you better explain technical network information to non-techies Graph traffic patterns to visualize the data flowing across your network Monitor your network in real-time and tap live network communications Use packet analysis to identify and resolve common network problems like loss of connectivity, DNS issues, sluggish speeds, and malware infectionsīuild customized capture and display filters Add to this a thorough introduction to the TCP/IP network stack and you're on your way to packet analysis proficiency. You'll find new sections on troubleshooting slow networks and packet analysis for security to help you better understand how modern exploits and malware behave at the packet level. With an expanded discussion of network protocols and 45 completely new scenarios, this extensively revised second edition of the best-selling Practical Packet Analysis will teach you how to make sense of your PCAP data. But how do you use those packets to understand what's happening on your network? ![]() ![]() It's easy to capture packets with Wireshark, the world's most popular network sniffer, whether off the wire or from the air. ![]()
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