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356 Chapter 6 Performance Management

P0609330 2.0

Accessing the TCP Packets graph and table

Transport Control Protocol (TCP) is transport layer component that provides the connection point

through which applications access network services. TCP use IP, and as a result, uses a best effort

delivery strategy. IP encapsulates TCP information in datagrams and delivers the data across

router-connected internetworks.

To access the TCP Packets Graph and Table

1 Access the Resources performance monitor (see “Accessing the Resources Performance

Monitor” on page 350). Continue to the next step of this procedure when complete.

2 From the Performance drop-down menu, select one of the following from the top line menu

item:

a TCP Packets Graph

b TCP Packets Table

TCP Packet counter types

The TCP Packets graph and table selections display TCP-related network traffic statistics. When

you display the TCP Packets graph, you can select one of the following counter types:

• Connection failures: The rate that TCP segments are sent or received using the TCP protocol.

• Connections archive: The number of times TCP connections have made a direct transition to

the SYN-SENT state from the CLOSED state.

• Connections established: The number of TCP connections for which the current state is

either ESTABLISHED or CLOSE-WAIT.

• Connections passive: the number of times TCP connections have made a direct transition to

the SYN-RCVD state from the LISTEN state.

• Connections reset: The number of times TCP connections have made a direct transition to the

CLOSED state from either the ESTABLISHED state or the CLOSE-WAIT state.

• Segments received: The rate that segments are received, including those received in error.

This count includes segments received on currently established connections.

• Segments retransmitted: The rate that segments are retransmitted, that is, segments

transmitted containing one or more previously transmitted bytes.

• Segments sent: The rate that segments are sent, including those on current connections, but

excluding those containing only retransmitted bytes.

•Segments: The rate that TCP segments are sent or received using the TCP protocol.

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