/stats/l3/tcp
TCP Statistics
 
TCP statistics:
tcpRtoAlgorithm: 4 tcpRtoMin: 0
tcpRtoMax: 240000 tcpMaxConn: 1600
tcpActiveOpens: 0 tcpPassiveOpens: 0
tcpAttemptFails: 0 tcpEstabResets: 0
tcpInSegs: 0 tcpOutSegs: 0
tcpRetransSegs: 0 tcpInErrs: 0
tcpCurBuff: 0 tcpCurConn: 6
tcpCurInConn: 0 tcpCurOutConn: 0
tcpCurLstnConn: 3 tcpOutRsts: 0
tcpAllocTCBFails: 0
TCP statistics are described in the following table:
 
TCP Statistics (/stats/l3/tcp) 
Statistic
Description
tcpRtoAlgorithm
The algorithm that determines the timeout value 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 as 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 as described in RFC 793.
tcpMaxConn
The limit on the total number of TCP connections Alteon 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.
tcpAttemptFails
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.
tcpEstabResets
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.
tcpInSegs
The number of segments received, including those received in error. This count includes segments received on currently established connections.
tcpOutSegs
The number of segments sent, including those on current connections but excluding those containing only retransmitted octets.
tcpRetransSegs
The number of segments retransmitted, meaning the number of TCP segments transmitted containing one or more previously transmitted octets.
tcpInErrs
The number of segments received in error (for example, bad TCP checksums).
tcpCurBuff
The number of outstanding memory allocations from heap by TCP protocol stack.
tcpCurConn
The number of outstanding TCP sessions that are currently opened.
tcpCurInConn
The number of remotely-initiated TCP connections.
tcpCurOutConn
The number of Alteon-originated TCP connection requests.
tcpCurLstnConn
The number of TCP ports on which Alteon is listening.
tcpOutRsts
The number of TCP segments sent containing the RST flag.
tcpAllocTCBFails
The number of failed attempts to allocate memory to the TCP transmission control block in MP.