Wireshark-users: [Wireshark-users] tcp errors detection

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From: Victor lyamtsev <vlyamtsev@xxxxxxxxx>
Date: Sun, 18 Apr 2010 08:17:57 -0400
Hi,

 how can i locate retransmission error for TCP sequence in wireshark capture ?
Should I look for ACK with repeated sequence number ?
For example:

[ACK] Seq = 1355 Ack = 13409 ...
[ACK] Seq = 1355 Ack = 13500

How can i detect checksum errors from the capture ?

Thanks,
-vvv