Bonk is not a personally owned computer so we are not restricted
by UC policy from sharing these records.

time on Nov. 1  ---Source > Destination---   F Sequence numbers (data bytes) flow-cntrl-window
13:10:02.573585 bonk.63231 > cruzmail.imap: S 2935115737:2935115737(0) win 65535 
13:10:02.574383 cruzmail.imap > bonk.63231: S 2941762471:2941762471(0) ack 2935115738 win 512
13:10:02.574709 bonk.63231 > cruzmail.imap: . ack 1 win 65535 (DF)
13:10:02.577483 cruzmail.imap > bonk.63231: P 1:66(65) ack 1 win 24820
13:10:02.587881 bonk.63231 > cruzmail.imap: P 1:15(14) ack 66 win 65535
13:10:02.589695 cruzmail.imap > bonk.63231: . ack 15 win 24820
13:10:02.589776 cruzmail.imap > bonk.63231: P 66:252(186) ack 15 win 24820
13:10:02.599617 bonk.63231 > cruzmail.imap: P 15:39(24) ack 252 win 65535
13:10:02.603271 cruzmail.imap > bonk.63231: . ack 39 win 24820
13:10:02.603292 cruzmail.imap > bonk.63231: P 252:288(36) ack 39 win 24820
13:10:02.607424 bonk.63231 > cruzmail.imap: P 39:49(10) ack 288 win 65535
13:10:02.704593 cruzmail.imap > bonk.63231: . ack 49 win 24820
13:10:04.015149 cruzmail.imap > bonk.63231: P 288:326(38) ack 49 win 24820
13:10:04.016487 bonk.63231 > cruzmail.imap: P 49:62(13) ack 326 win 65535

  [ There is an abrupt change in sequence number from 38 to a very large value ]

13:10:04.020491 cruzmail.imap > bonk.63231: P 2187413399:2187413699(300) ack 62 win 24820
13:10:04.020662 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.021370 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.021676 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.022513 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.022892 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.023877 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.024250 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.024574 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.024837 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.025679 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.026007 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.027088 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.027489 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.027784 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.027954 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.029714 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.030200 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.030806 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.031120 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:04.031852 cruzmail.imap > bonk.63231: . ack 62 win 24820
13:10:04.032274 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:08.813828 cruzmail.imap > bonk.63231: P 2187413399:2187413699(300) ack 62 win 24820
13:10:08.814298 bonk.63231 > cruzmail.imap: . ack 326 win 65535
13:10:18.412457 cruzmail.imap > bonk.63231: P 2187413399:2187413699(300) ack 62 win 24820
13:10:18.412728 bonk.63231 > cruzmail.imap: . ack 326 win 65535

This connection will not recover.  It is now dead.

For well connected computers like bonk, we can see the "ack storm" at rates above
1000 packets per second.  Since this can be happening on many computers at
the same time, it can be a lot of traffic.