Tcp Statistics - Lenovo RackSwitch G8264 Command Reference Manual

TCP Statistics

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The following command displays TCP statistics:
show ip tcp counters
Command mode: All
TCP statistics:
tcpRtoAlgorithm: 4 tcpRtoMin: 0
tcpRtoMax: 240000 tcpMaxConn: 512
tcpActiveOpens: 252214 tcpPassiveOpens: 7
tcpAttemptFails: 528 tcpEstabResets: 4
tcpInSegs: 756401 tcpOutSegs: 756655
tcpRetransSegs: 0 tcpInErrs: 0
tcpCurrEstab: 0 tcpCurConn: 3
tcpOutRsts: 417
The following table describes the TCP statistics.
Table 120.
TCP Statistics
Statistic Description
tcpRtoAlgorithm The algorithm used to determine the timeout value used
for retransmitting unacknowledged octets.
tcpRtoMin The minimum value permitted by a TCP implementation
for the retransmission timeout, measured in
milliseconds. More refined semantics for objects of this
type depend upon the algorithm used to determine the
retransmission timeout. In particular, when the timeout
algorithm is rsre(3), an object of this type has the semantics
of the LBOUND quantity described in RFC 793.
tcpRtoMax The maximum value permitted by a TCP implementation
for the retransmission timeout, measured in
milliseconds. More refined semantics for objects of this
type depend upon the algorithm used to determine the
retransmission timeout. In particular, when the timeout
algorithm is rsre(3), an object of this type has the semantics
of the UBOUND quantity described in RFC 793.
tcpMaxConn The limit on the total number of TCP connections the
entity (the switch) can support. In entities where the
maximum number of connections is dynamic, this object
should contain the value ‐1.
tcpActiveOpens The number of times TCP connections have made a direct
transition to the SYN‐SENT state from the CLOSED state.
tcpPassiveOpens The number of times TCP connections have made a direct
transition to the SYN‐RCVD state from the LISTEN state.
Chapter 3: Statistics Commands
267