User manual

Statistics commands 50
Table 43 ICMP statistics
Statistics Description
icmpOutDestUnreachs The number of ICMP Destination Unreachable messages sent.
icmpOutTimeExcds The number of ICMP Time Exceeded messages sent.
icmpOutParmProbs The number of ICMP Parameter Problem messages sent.
icmpOutSrcQuenchs The number of ICMP Source Quench (buffer almost full, stop sending data) messages
sent.
icmpOutRedirects The number of ICMP Redirect messages sent.
icmpOutEchos The number of ICMP Echo (request) messages sent.
icmpOutEchoReps The number of ICMP Echo Reply messages sent.
icmpOutTimestamps The number of ICMP Timestamp (request) messages sent.
icmpOutTimestampReps The number of ICMP Timestamp Reply messages sent.
icmpOutAddrMasks The number of ICMP Address Mask Request messages sent.
icmpOutAddrMaskReps The number of ICMP Address Mask Reply messages sent.
TCP statistics
The following command displays TCP statistics:
show ip tcp counters
Command mode: All except User EXEC
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
The following table describes the Transmission Control Protocol (TCP) statistics:
Table 44 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 Request For Comments (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 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.
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 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.