In Wireshark, basic IO graphs help visualize network issues such as dropped connections, lost frames, and duplicate acknowledgments. Lisa Bock reviews the IO graph window and the various parameters.
- [Instructor] In Wireshark we use graphs…to help visualize network issues,…such as dropped connections, lost frames…and duplicate acknowledgements.…When we take a look at the graphs, you have some choices.…Directional graphs focus on traffic flowing…in a certain direction.…An IO graph will show the traffic flowing…in both directions.…With an IO graph, you'll see that…it will support different filters and expressions,…and in some case, calculations.…
Within IO graphs, you can define differently colored graphs…and you can view several graphs concurrently.…An IO graph can be done on live traffic…or an existing trace file.…I'm in Wireshark and I have this packet capture open,…Congested Network.…I selected this one because there are issues.…Now, when we take a look at this,…over here at the expert infos, you can see it's red,…and then you can see the intelligent scroll bar…showing signs of latency, duplicate acknowledgements…and keep-alives.…
So we know there's issues.…Go down to the expert infos, I'll open this up,…
- Tapping into the network
- Baselining the network
- Troubleshooting to discover the cause of a slow network
- Merging traffic
- Sanitizing packet captures
- Capture engines
- Optimizing packet captures
- Basic and advanced IO graphs
- TCP stream graphs
Skill Level Intermediate
Enhance your skills1m 5s
1. Tapping into the Stream
2. Solving Network Problems
3. Capture Engines and Wi-Fi
4. Command Line Capture
5. IO and Stream Graphs
What's next?1m 13s
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