TCP Out of Order Packets

Hi Guys,

I need help decoding a trace. I am seeing lot of tcp OOO, TCP Dup Acks, TCP Previous Segment Lost. Ocassionally, I am seeing TCP Window Update. I am spanning the entire Vlan on a Cisco 6K. So I understand, I will see Duplicate Acks, as my span port is seeing it twice. But how do I explain rest of the messages? Thanks in advance for your help.

Had similar issues with this when i did the same thing. It was caused by me spanning the whole VLAN for transmit/receive packets which were screwing the results up.

What does happen when you just span the vlan with one transmit or receive instead of both ?

I do have an article that i get e-mailed to me explaining something which i cannot remember (it was when i raised a TAC with our suppliers). I will try and remember to dig it out when i am in the office

Cheers

Did you ever find that article? I am running into a very similar issue here and would like to see it.

Thanks

Hehe, knew there was something i needed to do;

Click here here