Brocade Communications Systems SN3000B Command Reference Manual page 837

You can display the TCP history with the fciptunnel -hist command. This command displays a maximum
of 16 entries. Once the maximum history length is reached, the oldest entry is removed from the end, and
the newest entry is added to the front of the TCP history as future connection failures occur. The
following data items are captured when a TCP connection encounters a failure:
Reason
RTT
RTT H
Var
Var H
OOO
OOO H
Sendw Cwnd
Rx win
Fast Rtx
F Rtx H
Slow Rtx
InFlt H
SlowStarts
Rtx TO
Rtx Rtx TO
Dup ACK
Rtx Dup ACK
LPort
RPort
Fabric OS Command Reference
53-1001764-01
The reason for the TCP connection failure
Round trip time
Round trip time high water mark
Variance
Variance high water mark
Counter of out-of-order segments
Out-of-order segments high water mark
Size of sender congestion window (bytes)
Size of receive window (bytes)
Fast retransmits
Fast retransmits high water mark
Slow retransmits
Packets in-flight high water mark
Counter of slow starts
Retransmit timeouts
Counter of retransmit packets due to timeout
Counter of duplicate ACKs
Counter of retransmit packets due to duplicate ACK
Local port
Remote port
2
portShow
811