Higher packet loss with smaller MTU size

[20vek]

Hello Everyone!

I was doing network throughput using Fluke Etherscope II and LinkRunner Duo and noticed a strange phenomenon when using small frames up to 68 Bytes. There is a loss rate that goes up to 4 %. Increasing frame size up to 1000 or 1500 Bytes will eliminate any packet loss. It was tested on flat network using 6500 series switches with the 10 Gbps backbone connection.  I attaches some pictures with the test results. Any idea why this happens?

Thank you,

Val

[Joseph W. Doherty]

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Posting

It might be your queues' buffers are too small for a high rate of small packets.