Dell Command Line Reference Guide for the S4048–ON System 9.14.2.8

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show tcp statistics

View information on TCP traffic through the switch.

Syntax
show tcp statistics {all | cp}
Parameters
all
Enter the keyword all to view all TCP information.
cp
Enter the keyword cp to view only TCP information from the Control Processor.
Command Modes
EXEC Privilege
Command History

This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC Networking OS Command Line Reference Guide.

Version
Description
9.10(0.1)
Introduced on the S6010-ON and S4048T-ON.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S3148.
9.10(0.0)
Introduced on the S6100–ON.
9.8(2.0)
Introduced on the S3100 series.
9.8(1.0)
Introduced on the Z9100–ON.
9.8(0.0P5)
Introduced on the S4048-ON.
9.8(0.0P2)
Introduced on the S3048-ON.
9.2(1.0)
Introduced on the Z9500.
9.0.2.0
Introduced on the S6000.
8.3.19.0
Introduced on the S4820T.
8.3.11.1
Introduced on the Z9000.
8.3.7.0
Introduced on the S4810.
8.1.1.0
Introduced on the E-Series.
6.4.1.0
Introduced
Usage Information
The following describes the show tcp statistics cp command shown in the following example.
Field
Description
Rcvd:
Displays the number and types of TCP packets received by the switch.
  • Total = total packets received
  • no port = number of packets received with no designated port
0 checksum error...
Displays the number of packets received with the following:
  • checksum errors
  • bad offset to data
  • too short
329 packets...
Displays the number of packets and bytes received in sequence.
17 dup...
Displays the number of duplicate packets and bytes received.
0 partially...
Displays the number of partially duplicated packets and bytes received.
7 out-of-order...
Displays the number of packets and bytes received out of order.
0 packets with data after window
Displays the number of packets and bytes received that exceed the switch’s window size.
0 packets after close
Displays the number of packet received after the TCP connection was closed.
0 window probe packets...
Displays the number of window probe and update packets received.
41 dup ack...
Displays the number of duplicate acknowledgement packets and acknowledgement packets with data received.
10184 ack...
Displays the number of acknowledgement packets and bytes received.
Sent:
Displays the total number of TCP packets sent and the number of urgent packets sent.
25 control packets...
Displays the number of control packets sent and the number retransmitted.
11603 data packets...
Displays the number of data packets sent.
24 data packets retransmitted
Displays the number of data packets resent.
355 ack..
Displays the number of acknowledgement packets sent and the number of packet delayed.
0 window probe...
Displays the number of window probe and update packets sent.
7 Connections initiated...
Displays the number of TCP connections initiated, accepted, and established.
14 Connections closed...
Displays the number of TCP connections closed, dropped.
20 Total rxmt...
Displays the number of times the switch tried to re-send data and the number of connections dropped during the TCP retransmit timeout period.
0 Keepalive....
Lists the number of keepalive packets in timeout, the number keepalive probes and the number of TCP connections dropped during keepalive.
Example
DellEMC# show tcp stat cp

Control Processor TCP:
Rcvd: 10585 Total, 0 no port
   0 checksum error, 0 bad offset, 0 too short
   329 packets (1263 bytes) in sequence
   17 dup packets (6 bytes)
   0 partially dup packets (0 bytes)
   7 out-of-order packets (0 bytes)
   0 packets ( 0 bytes) with data after window
   0 packets after close
   0 window probe packets, 41 window update packets
   41 dup ack packets, 0 ack packets with unsend data
   10184 ack packets (12439508 bytes)
Sent: 12007 Total, 0 urgent packets
   25 control packets (including 24 retransmitted)
   11603 data packets (12439677 bytes)
   24 data packets (7638 bytes) retransmitted
   355 ack only packets (41 delayed)
   0 window probe packets, 0 window update packets
   7 Connections initiated, 8 connections accepted, 15 connections established
   14 Connections closed (including 0 dropped, 0 embryonic dropped)
   20 Total rxmt timeout, 0 connections dropped in rxmt timeout
   0 Keepalive timeout, 0 keepalive probe, 0 Connections dropped in keepalive

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