Table 58
ICMP statistics
Statistics
icmpOutTimestamps
icmpOutTimestampReps
icmpOutAddrMasks
icmpOutAddrMaskReps
TCP statistics
The following command displays TCP statistics:
show ip tcp counters
Command mode: All except User EXEC
TCP statistics:
tcpRtoAlgorithm:
tcpRtoMax:
tcpActiveOpens:
tcpAttemptFails:
tcpInSegs:
tcpRetransSegs:
tcpCurBuff:
tcpOutRsts:
The following table describes the Transmission Control Protocol (TCP) statistics:
Table 59
TCP statistics
Statistics
tcpRtoAlgorithm
tcpRtoMin
tcpRtoMax
tcpMaxConn
tcpActiveOpens
tcpPassiveOpens
tcpAttemptFails
tcpEstabResets
tcpInSegs
tcpOutSegs
Description
The number of ICMP Timestamp (request) messages sent.
The number of ICMP Timestamp Reply messages sent.
The number of ICMP Address Mask Request messages sent.
The number of ICMP Address Mask Reply messages sent.
4
tcpRtoMin:
240000
tcpMaxConn:
252214
tcpPassiveOpens:
528
tcpEstabResets:
756401
tcpOutSegs:
0
tcpInErrs:
0
tcpCurConn:
417
Description
The algorithm used to determine the timeout value used for retransmitting
unacknowledged octets.
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.
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.
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.
The number of times TCP connections have made a direct transition to the SYN-SENT
state from the CLOSED state.
The number of times TCP connections have made a direct transition to the SYN-RCVD
state from the LISTEN state.
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.
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.
The total number of segments received, including those received in error. This count
includes segments received on currently established connections.
The total number of segments sent, including those on current connections but excluding
those containing only retransmitted octets.
0
512
7
4
756655
0
3
Statistics commands 67
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