Command Reference Guide

N8406-022A 1Gb Intelligent L2 Switch Command Reference Guide (ISCLI) 54
Table 48 ICMP statistics
Statistics
Description
icmpOutErrors
The number of ICMP messages that this switch did not send due to problems
discovered within ICMP such as a lack of buffer. This value should not include errors
discovered outside the ICMP layer such as the inability of IP to route the resultant
datagram. In some implementations there may be no types of errors that contribute to
this counter's value.
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: 2048
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 49 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.