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File Transfer is Failing after F5

asked Nov 11 '1

Subrun gravatar image

Here 142.67.47.12 is source and 10.8.17.80 is the VIP IP at F5.

Question is why it is saying below TCP messages all the time ?

[ TCP Previous segment not captured ] [ TCP Acked unseen segment ]

I am not able to attach screenshot due to I have no points.

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answered Nov 11 '1

BigFatCat gravatar image
  1. [TCP Previous segment not captured ] Wireshark is telling you there is a gap in the TCP sequence numbers.

  2. [ TCP Acked unseen segment ] Wireshark is telling you there is TCP ACK for a sequence number that wasn't in the capture.

The problem is that the sniffer isn't capturing all the packets or there is a split path. The F5 is a low balancer, so a split path is a high probability.

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If it is a split path, then I would try to test using one path at a time.

BigFatCat gravatar imageBigFatCat ( Nov 11 '1 )

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Asked: Nov 11 '1

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Last updated: Nov 11 '21