Graphing chassis TCP statistics using EDM

Use this procedure to display and graph TCP statistics.

Procedure steps


Step Action

1

From the navigation tree, double-click Graph.

2

In the Graph tree, double-click Chassis.

3

In the work area, click the TCP tab.

4

On the toolbar, select a Poll Interval from the list.

5

On the toolbar, you can click Clear Counters to reset the IP statistics counters.

6

To select statistics to graph, click a statistic type row under a column heading.

7

On the toolbar, click Line Chart, Area Chart, Bar Chart, or Pie Chart.


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Variable definitions

Use the data in the following table to help you understand TCP statistics.

Variable Value
ActiveOpens The number of times TCP connections make a direct transition to the SYN-SENT state from the CLOSED state.
PassiveOpens The number of times TCP connections make a direct transition to the SYN-RCVD state from the LISTEN state.
AttemptFails The number of times TCP connections make a direct transition to the CLOSED state from either the SYN-SENT state or the SYN-RCVD state, plus the number of times TCP connections make a direct transition to the LISTEN state from the SYN-RCVD state.
EstabResets The number of times TCP connections make a direct transition to the CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.
CurrEstab The number of TCP connections for which the current state is either ESTABLISHED or CLOSE-WAIT.
InSegs The total number of segments received, including those received in error. This count includes segments received on currently established connections.
OutSegs The total number of segments sent, including those on current connections but excluding those containing only retransmitted octets.
RetransSegs The total number of segments retransmitted, that is, the number of TCP segments transmitted containing one or more previously transmitted octets.
InErrs The total number of segments received in error (for example, bad TCP checksums).
OutRsts The number of TCP segments sent containing the RST flag.
HCInSegs The number of segments received, including those received in error. This count includes segments received on currently established connections. This object is the 64-bit equivalent of InSegs.
HCOutSegs The number of segments sent, including those on current connections, but excluding those containing only retransmitted octets. This object is the 64-bit equivalent of OutSegs.