Reference Guide

N8406-022A 1Gb Intelligent L2 Switch Browser-based Interface Reference Guide 66
TCP statistics are described in the following table:
Table 55 TCP Statistics
Statistic
Description
tcpInSegs
The total number of segments received, including those received in error. This count
includes segments received on currently established connections.
tcpOutSegs
The total number of segments sent, including those on current connections, but
excluding those containing only retransmitted octets.
tcpRtoAlgorithm
The algorithm used to determine the timeout value used for retransmitting
unacknowledged octets.
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.
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.
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 SYNRCVD 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.
tcpRetransSegs
The total number of segments retransmitted - that is, the number of TCP segments
transmitted containing one or more previously transmitted octets.
tcpInErrs
The total number of segments received in error (for example, bad TCP
checksums).
tcpCurBuff
The total number of outstanding memory allocations from heap by TCP protocol
stack.
tcpCurConn
The total number of outstanding TCP sessions that are currently opened.
tcpOutRsts
The number of TCP segments sent containing the RST flag.
UDP statistics are described in the following table:
Table 56 UDP Statistics
Statistic
Description
udpInDatagrams
The total number of UDP datagrams delivered to the switch.
udpOutDatagrams
The total number of UDP datagrams sent from this entity (the switch).
udpInErrors
The number of received UDP datagrams that could not be delivered for reasons other than
the lack of an application at the destination port.
udpNoPorts
The total number of received UDP datagrams for which there was no application at the
destination port.