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3
Configuring the Switch
TCP Statistics
The Transmission Control Protocol (TCP) provides highly reliable host-to-host
connections in packet-switched networks, and is used in conjunction with IP to
support a wide variety of Internet protocols.
Parameter
Segments Received
Segments Sent
Active Opens
Failed Connection Attempts
Current Connections
Receive Errors
Segments Retransmitted
Passive Opens
Reset Connections
Web - Click IP, Statistics, TCP.
CLI - See the example on page 3-216.
3-222
Table 3-21 TCP Statistics
Description
The total number of segments received, including those received in error.
This count includes segments received on currently established
connections.
The total number of segments sent, including those on current
connections but excluding those containing only retransmitted octets.
The number of times TCP connections have made a direct transition to the
SYN-SENT state from the CLOSED state.
The number of times TCP connections have made 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 have made a direct transition
to the LISTEN state from the SYN-RCVD state.
The number of TCP connections for which the current state is either
ESTABLISHED or CLOSE- WAIT.
The total number of segments received in error (e.g., bad TCP
checksums).
The total number of segments retransmitted - that is, the number of TCP
segments transmitted containing one or more previously transmitted
octets.
The number of times TCP connections have made a direct transition to the
SYN-RCVD state from the LISTEN state.
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.
Figure 3-127 TCP Statistics
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