Statistics Description - HP 438031-B21 - 1:10Gb Ethernet BL-c Switch Cli Reference Manual

The following table describes the Transmission Control Protocol (TCP) statistics:
TCP statistics
Table 60
Statistics Description
The algorithm used to determine the timeout value used for retransmitting unacknowledged
tcpRtoAlgorithm
octets.
The minimum value permitted by a TCP implementation for the retransmission timeout,
tcpRtoMin
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 Request For Comments (RFC) 793.
The maximum value permitted by a TCP implementation for the retransmission timeout,
tcpRtoMax
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.
The limit on the total number of TCP connections the switch can support. In entities where the
tcpMaxConn
maximum number of connections is dynamic, this object should contain the value -1.
The number of times TCP connections have made a direct transition to the SYN-SENT state
tcpActiveOpens
from the CLOSED state.
The number of times TCP connections have made a direct transition to the SYN-RCVD state
tcpPassiveOpens
from the LISTEN state.
The number of times TCP connections have made a direct transition to the CLOSED state
tcpAttemptFails
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 times TCP connections have made a direct transition to the CLOSED state
tcpEstabResets
from either the ESTABLISHED state or the CLOSE- WAIT state.
The total number of segments received, including those received in error. This count includes
tcpInSegs
segments received on currently established connections.
The total number of segments sent, including those on current connections but excluding
tcpOutSegs
those containing only retransmitted octets.
The total number of segments retransmitted, that is, the number of TCP segments transmitted
tcpRetransSegs
containing one or more previously transmitted octets.
The total number of segments received in error (for example, bad TCP checksums).
tcpInErrs
The total number of outstanding memory allocations from heap by TCP protocol stack.
tcpCurBuff
The total number of outstanding TCP sessions that are currently opened.
tcpCurConn
The number of TCP segments sent containing the reset (RST) flag.
tcpOutRsts
Statistics Commands
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