Technical data

BLADE OS 5.0 Command Reference
BMD00142, November 2009 Chapter 5: The Statistics Menu
 129
/stats/l3/tcp [clear]
TCP Statistics
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
tcpCurBuff: 0 tcpCurConn: 3
tcpOutRsts: 417
Table 58 TCP Statistics
Statistics 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.