How passively monitor for tcp packet loss? (Linux)

Posted by nonot1 on Server Fault See other posts from Server Fault or by nonot1
Published on 2011-10-05T23:55:56Z Indexed on 2011/11/28 18:08 UTC
Read the original article Hit count: 326

Filed under:

linux

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tcp

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performance-monitoring

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network-monitoring

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packetloss

How can I passively monitor the packet loss on TCP connections to/from my machine?

Basically, I'd like a tool that sits in the background and watches TCP ack/nak/re-transmits to generate a report on which peer IP addresses "seem" to be experiencing heavy loss.

Most questions like this that I find of SF suggest using tools like iperf. But, I need to monitor connections to/from a real application on my machine.

Is this data just sitting there in the Linux TCP stack?

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