10-10
Table 10-5 display tcp statistics
command output description
Field
Description
Total
Total number of packets received
packets in sequence
Number of packets arriving in sequence
window probe packets
Number of window probe packets received
window update packets
Number of window update packets received
checksum error
Number of checksum error packets received
offset error
Number of offset error packets received
short error
Number of received packets with length being too small
duplicate packets
Number of completely duplicate packets received
partially duplicate packets
Number of partially duplicate packets received
out-of-order packets
Number of out-of-order packets received
packets of data after window
Number of packets outside the receiving window
packets received after close
Number of packets that arrived after connection is closed
ACK packets
Number of ACK packets received
duplicate ACK packets
Number of duplicate ACK packets received
Received
packets:
too much ACK packets
Number of ACK packets for data unsent
Total
Total number of packets sent
urgent packets
Number of urgent packets sent
control packets
Number of control packets sent
window probe packets
Number of window probe packets sent; in the brackets are
resent packets
window update packets
Number of window update packets sent
data packets
Number of data packets sent
data packets retransmitted
Number of data packets retransmitted
Sent packets:
ACK-only packets
Number of ACK packets sent; in brackets are delayed ACK
packets
Retransmitted timeout
Number of retransmission timer timeouts
connections dropped in retransmitted timeout
Number of connections broken due to retransmission
timeouts
Keepalive timeout
Number of keepalive timer timeouts
keepalive probe
Number of keepalive probe packets sent
Keepalive timeout, so connections
disconnected
Number of connections broken due to timeout of the
keepalive timer
Initiated connections
Number of connections initiated
accepted connections
Number of connections accepted
established connections
Number of connections established
Closed connections
Number of connections closed; in brackets are connections
closed accidentally (before receiving SYN from the peer)
and connections closed initiatively (after receiving SYN from
the peer)