-.TH SAR 1 "NOVEMBER 2016" Linux "Linux User's Manual" -*- nroff -*-
+.TH SAR 1 "DECEMBER 2016" Linux "Linux User's Manual" -*- nroff -*-
.SH NAME
sar \- Collect, report, or save system activity information.
.SH SYNOPSIS
Possible keywords are
.BR DEV ,
.BR EDEV ,
+.BR FC ,
+.BR ICMP ,
+.BR EICMP ,
+.BR ICMP6 ,
+.BR EICMP6 ,
+.BR IP ,
+.BR EIP ,
+.BR IP6 ,
+.BR EIP6 ,
.BR NFS ,
.BR NFSD ,
.BR SOCK ,
-.BR IP ,
-.BR EIP ,
-.BR ICMP ,
-.BR EICMP ,
+.BR SOCK6 ,
+.BR SOFT ,
.BR TCP ,
.BR ETCP ,
-.BR UDP ,
-.BR SOCK6 ,
-.BR IP6 ,
-.BR EIP6 ,
-.BR ICMP6 ,
-.BR EICMP6 ,
-.BR UDP6 ,
-.BR FC
+.BR UDP
and
-.BR SOFT .
+.BR UDP6 .
With the
.B DEV
.RE
With the
-.B NFS
-keyword, statistics about NFS client activity are reported.
+.B FC
+keyword, statistics about fibre channel traffic are reported.
+Note that fibre channel statistics depend on
+.BR sadc 's
+option "-S DISK" to be collected.
The following values are displayed:
-.B call/s
-.RS
-Number of RPC requests made per second.
-.RE
-
-.B retrans/s
+.B FCHOST
.RS
-Number of RPC requests per second, those which needed to be retransmitted (for
-example because of a server timeout).
+Name of the fibre channel host bus adapter (HBA) interface for which statistics are reported.
.RE
-.B read/s
+.B fch_rxf/s
.RS
-Number of 'read' RPC calls made per second.
+The total number of frames received per second.
.RE
-.B write/s
+.B fch_txf/s
.RS
-Number of 'write' RPC calls made per second.
+The total number of frames transmitted per second.
.RE
-.B access/s
+.B fch_rxw/s
.RS
-Number of 'access' RPC calls made per second.
+The total number of transmission words received per second.
.RE
-.B getatt/s
+.B fch_txw/s
.RS
-Number of 'getattr' RPC calls made per second.
+The total number of transmission words transmitted per second.
.RE
With the
-.B NFSD
-keyword, statistics about NFS server activity are reported.
-The following values are displayed:
+.B ICMP
+keyword, statistics about ICMPv4 network traffic are reported.
+Note that ICMPv4 statistics depend on
+.BR sadc 's
+option "-S SNMP"
+to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
-.B scall/s
+.B imsg/s
.RS
-Number of RPC requests received per second.
+The total number of ICMP messages which the entity
+received per second [icmpInMsgs].
+Note that this counter includes all those counted by ierr/s.
.RE
-.B badcall/s
+.B omsg/s
.RS
-Number of bad RPC requests received per second, those whose
-processing generated an error.
+The total number of ICMP messages which this entity
+attempted to send per second [icmpOutMsgs].
+Note that this counter includes all those counted by oerr/s.
.RE
-.B packet/s
+.B iech/s
.RS
-Number of network packets received per second.
+The number of ICMP Echo (request) messages received per second [icmpInEchos].
.RE
-.B udp/s
+.B iechr/s
.RS
-Number of UDP packets received per second.
+The number of ICMP Echo Reply messages received per second [icmpInEchoReps].
.RE
-.B tcp/s
+.B oech/s
.RS
-Number of TCP packets received per second.
+The number of ICMP Echo (request) messages sent per second [icmpOutEchos].
.RE
-.B hit/s
+.B oechr/s
.RS
-Number of reply cache hits per second.
+The number of ICMP Echo Reply messages sent per second [icmpOutEchoReps].
.RE
-.B miss/s
+.B itm/s
.RS
-Number of reply cache misses per second.
+The number of ICMP Timestamp (request) messages received per second [icmpInTimestamps].
.RE
-.B sread/s
+.B itmr/s
.RS
-Number of 'read' RPC calls received per second.
+The number of ICMP Timestamp Reply messages received per second [icmpInTimestampReps].
.RE
-.B swrite/s
+.B otm/s
.RS
-Number of 'write' RPC calls received per second.
+The number of ICMP Timestamp (request) messages sent per second [icmpOutTimestamps].
.RE
-.B saccess/s
+.B otmr/s
.RS
-Number of 'access' RPC calls received per second.
+The number of ICMP Timestamp Reply messages sent per second [icmpOutTimestampReps].
.RE
-.B sgetatt/s
+.B iadrmk/s
.RS
-Number of 'getattr' RPC calls received per second.
+The number of ICMP Address Mask Request messages received per second [icmpInAddrMasks].
.RE
-With the
-.B SOCK
-keyword, statistics on sockets in use are reported
-(IPv4).
-The following values are displayed:
-
-.B totsck
+.B iadrmkr/s
.RS
-Total number of sockets used by the system.
+The number of ICMP Address Mask Reply messages received per second [icmpInAddrMaskReps].
.RE
-.B tcpsck
+.B oadrmk/s
.RS
-Number of TCP sockets currently in use.
+The number of ICMP Address Mask Request messages sent per second [icmpOutAddrMasks].
.RE
-.B udpsck
+.B oadrmkr/s
.RS
-Number of UDP sockets currently in use.
+The number of ICMP Address Mask Reply messages sent per second [icmpOutAddrMaskReps].
.RE
-.B rawsck
+With the
+.B EICMP
+keyword, statistics about ICMPv4 error messages are reported.
+Note that ICMPv4 statistics depend on
+.BR sadc 's
+option "-S SNMP" to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
+
+.B ierr/s
.RS
-Number of RAW sockets currently in use.
+The number of ICMP messages per second which the entity received but
+determined as having ICMP-specific errors (bad ICMP
+checksums, bad length, etc.) [icmpInErrors].
.RE
-.B ip-frag
+.B oerr/s
.RS
-Number of IP fragments currently in queue.
+The number of ICMP messages per second which this entity did not send
+due to problems discovered within ICMP such as a lack of buffers [icmpOutErrors].
.RE
-.B tcp-tw
+.B idstunr/s
.RS
-Number of TCP sockets in TIME_WAIT state.
+The number of ICMP Destination Unreachable messages
+received per second [icmpInDestUnreachs].
.RE
-With the
-.B IP
-keyword, statistics about IPv4 network traffic are reported.
-Note that IPv4 statistics depend on
-.BR sadc 's
-option "-S SNMP"
-to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
+.B odstunr/s
+.RS
+The number of ICMP Destination Unreachable messages sent per second [icmpOutDestUnreachs].
+.RE
-.B irec/s
+.B itmex/s
.RS
-The total number of input datagrams received from interfaces
-per second, including those received in error [ipInReceives].
+The number of ICMP Time Exceeded messages received per second [icmpInTimeExcds].
.RE
-.B fwddgm/s
+.B otmex/s
.RS
-The number of input datagrams per second, for which this entity was not
-their final IP destination, as a result of which an attempt
-was made to find a route to forward them to that final
-destination [ipForwDatagrams].
+The number of ICMP Time Exceeded messages sent per second [icmpOutTimeExcds].
.RE
-.B idel/s
+.B iparmpb/s
.RS
-The total number of input datagrams successfully delivered per second
-to IP user-protocols (including ICMP) [ipInDelivers].
+The number of ICMP Parameter Problem messages received per second [icmpInParmProbs].
.RE
-.B orq/s
+.B oparmpb/s
.RS
-The total number of IP datagrams which local IP user-protocols (including ICMP)
-supplied per second to IP in requests for transmission [ipOutRequests].
-Note that this counter does not include any datagrams counted in fwddgm/s.
+The number of ICMP Parameter Problem messages sent per second [icmpOutParmProbs].
.RE
-.B asmrq/s
+.B isrcq/s
.RS
-The number of IP fragments received per second which needed to be
-reassembled at this entity [ipReasmReqds].
+The number of ICMP Source Quench messages received per second [icmpInSrcQuenchs].
.RE
-.B asmok/s
+.B osrcq/s
.RS
-The number of IP datagrams successfully re-assembled per second [ipReasmOKs].
+The number of ICMP Source Quench messages sent per second [icmpOutSrcQuenchs].
.RE
-.B fragok/s
+.B iredir/s
.RS
-The number of IP datagrams that have been successfully
-fragmented at this entity per second [ipFragOKs].
+The number of ICMP Redirect messages received per second [icmpInRedirects].
.RE
-.B fragcrt/s
+.B oredir/s
.RS
-The number of IP datagram fragments that have been
-generated per second as a result of fragmentation at this entity [ipFragCreates].
+The number of ICMP Redirect messages sent per second [icmpOutRedirects].
.RE
With the
-.B EIP
-keyword, statistics about IPv4 network errors are reported.
-Note that IPv4 statistics depend on
+.B ICMP6
+keyword, statistics about ICMPv6 network traffic are reported.
+Note that ICMPv6 statistics depend on
.BR sadc 's
-option "-S SNMP" to be collected.
+option "-S IPV6" to be collected.
The following values are displayed (formal SNMP names between
square brackets):
-.B ihdrerr/s
+.B imsg6/s
.RS
-The number of input datagrams discarded per second due to errors in
-their IP headers, including bad checksums, version number
-mismatch, other format errors, time-to-live exceeded, errors
-discovered in processing their IP options, etc. [ipInHdrErrors]
+The total number of ICMP messages received
+by the interface per second which includes all those
+counted by ierr6/s [ipv6IfIcmpInMsgs].
.RE
-.B iadrerr/s
+.B omsg6/s
.RS
-The number of input datagrams discarded per second because the IP
-address in their IP header's destination field was not a
-valid address to be received at this entity. This count
-includes invalid addresses (e.g., 0.0.0.0) and addresses of
-unsupported Classes (e.g., Class E). For entities which are
-not IP routers and therefore do not forward datagrams, this
-counter includes datagrams discarded because the destination
-address was not a local address [ipInAddrErrors].
+The total number of ICMP messages which this
+interface attempted to send per second [ipv6IfIcmpOutMsgs].
.RE
-.B iukwnpr/s
+.B iech6/s
.RS
-The number of locally-addressed datagrams received
-successfully but discarded per second because of an unknown or
-unsupported protocol [ipInUnknownProtos].
+The number of ICMP Echo (request) messages
+received by the interface per second [ipv6IfIcmpInEchos].
.RE
-.B idisc/s
+.B iechr6/s
.RS
-The number of input IP datagrams per second for which no problems were
-encountered to prevent their continued processing, but which
-were discarded (e.g., for lack of buffer space) [ipInDiscards].
-Note that this counter does not include any datagrams discarded while
-awaiting re-assembly.
+The number of ICMP Echo Reply messages received
+by the interface per second [ipv6IfIcmpInEchoReplies].
.RE
-.B odisc/s
+.B oechr6/s
.RS
-The number of output IP datagrams per second for which no problem was
-encountered to prevent their transmission to their
-destination, but which were discarded (e.g., for lack of
-buffer space) [ipOutDiscards].
-Note that this counter would include
-datagrams counted in fwddgm/s if any such packets met
-this (discretionary) discard criterion.
+The number of ICMP Echo Reply messages sent
+by the interface per second [ipv6IfIcmpOutEchoReplies].
.RE
-.B onort/s
+.B igmbq6/s
.RS
-The number of IP datagrams discarded per second because no route could
-be found to transmit them to their destination [ipOutNoRoutes].
-Note that this counter includes any packets counted in fwddgm/s
-which meet this 'no-route' criterion.
-Note that this includes any datagrams which a host cannot route because all
-of its default routers are down.
+The number of ICMPv6 Group Membership Query
+messages received by the interface per second
+[ipv6IfIcmpInGroupMembQueries].
.RE
-.B asmf/s
+.B igmbr6/s
.RS
-The number of failures detected per second by the IP re-assembly
-algorithm (for whatever reason: timed out, errors, etc) [ipReasmFails].
-Note that this is not necessarily a count of discarded IP
-fragments since some algorithms can lose track of the number of
-fragments by combining them as they are received.
+The number of ICMPv6 Group Membership Response messages
+received by the interface per second
+[ipv6IfIcmpInGroupMembResponses].
.RE
-.B fragf/s
+.B ogmbr6/s
.RS
-The number of IP datagrams that have been discarded per second because
-they needed to be fragmented at this entity but could not
-be, e.g., because their Don't Fragment flag was set [ipFragFails].
+The number of ICMPv6 Group Membership Response
+messages sent per second
+[ipv6IfIcmpOutGroupMembResponses].
.RE
-With the
-.B ICMP
-keyword, statistics about ICMPv4 network traffic are reported.
-Note that ICMPv4 statistics depend on
-.BR sadc 's
-option "-S SNMP"
-to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
+.B igmbrd6/s
+.RS
+The number of ICMPv6 Group Membership Reduction messages
+received by the interface per second
+[ipv6IfIcmpInGroupMembReductions].
+.RE
-.B imsg/s
+.B ogmbrd6/s
.RS
-The total number of ICMP messages which the entity
-received per second [icmpInMsgs].
-Note that this counter includes all those counted by ierr/s.
+The number of ICMPv6 Group Membership Reduction
+messages sent per second
+[ipv6IfIcmpOutGroupMembReductions].
.RE
-.B omsg/s
+.B irtsol6/s
.RS
-The total number of ICMP messages which this entity
-attempted to send per second [icmpOutMsgs].
-Note that this counter includes all those counted by oerr/s.
+The number of ICMP Router Solicit messages
+received by the interface per second
+[ipv6IfIcmpInRouterSolicits].
.RE
-.B iech/s
+.B ortsol6/s
.RS
-The number of ICMP Echo (request) messages received per second [icmpInEchos].
+The number of ICMP Router Solicitation messages
+sent by the interface per second
+[ipv6IfIcmpOutRouterSolicits].
.RE
-.B iechr/s
+.B irtad6/s
.RS
-The number of ICMP Echo Reply messages received per second [icmpInEchoReps].
+The number of ICMP Router Advertisement messages
+received by the interface per second
+[ipv6IfIcmpInRouterAdvertisements].
.RE
-.B oech/s
+.B inbsol6/s
.RS
-The number of ICMP Echo (request) messages sent per second [icmpOutEchos].
+The number of ICMP Neighbor Solicit messages
+received by the interface per second
+[ipv6IfIcmpInNeighborSolicits].
.RE
-.B oechr/s
+.B onbsol6/s
.RS
-The number of ICMP Echo Reply messages sent per second [icmpOutEchoReps].
+The number of ICMP Neighbor Solicitation
+messages sent by the interface per second
+[ipv6IfIcmpOutNeighborSolicits].
.RE
-.B itm/s
+.B inbad6/s
.RS
-The number of ICMP Timestamp (request) messages received per second [icmpInTimestamps].
+The number of ICMP Neighbor Advertisement
+messages received by the interface per second
+[ipv6IfIcmpInNeighborAdvertisements].
.RE
-.B itmr/s
+.B onbad6/s
.RS
-The number of ICMP Timestamp Reply messages received per second [icmpInTimestampReps].
+The number of ICMP Neighbor Advertisement
+messages sent by the interface per second
+[ipv6IfIcmpOutNeighborAdvertisements].
.RE
-.B otm/s
+With the
+.B EICMP6
+keyword, statistics about ICMPv6 error messages are reported.
+Note that ICMPv6 statistics depend on
+.BR sadc 's
+option "-S IPV6" to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
+
+.B ierr6/s
.RS
-The number of ICMP Timestamp (request) messages sent per second [icmpOutTimestamps].
+The number of ICMP messages per second which the interface
+received but determined as having ICMP-specific
+errors (bad ICMP checksums, bad length, etc.)
+[ipv6IfIcmpInErrors]
.RE
-.B otmr/s
+.B idtunr6/s
.RS
-The number of ICMP Timestamp Reply messages sent per second [icmpOutTimestampReps].
+The number of ICMP Destination Unreachable
+messages received by the interface per second
+[ipv6IfIcmpInDestUnreachs].
.RE
-.B iadrmk/s
+.B odtunr6/s
.RS
-The number of ICMP Address Mask Request messages received per second [icmpInAddrMasks].
+The number of ICMP Destination Unreachable
+messages sent by the interface per second
+[ipv6IfIcmpOutDestUnreachs].
.RE
-.B iadrmkr/s
+.B itmex6/s
.RS
-The number of ICMP Address Mask Reply messages received per second [icmpInAddrMaskReps].
+The number of ICMP Time Exceeded messages
+received by the interface per second
+[ipv6IfIcmpInTimeExcds].
.RE
-.B oadrmk/s
+.B otmex6/s
.RS
-The number of ICMP Address Mask Request messages sent per second [icmpOutAddrMasks].
+The number of ICMP Time Exceeded messages sent
+by the interface per second
+[ipv6IfIcmpOutTimeExcds].
.RE
-.B oadrmkr/s
+.B iprmpb6/s
.RS
-The number of ICMP Address Mask Reply messages sent per second [icmpOutAddrMaskReps].
+The number of ICMP Parameter Problem messages
+received by the interface per second
+[ipv6IfIcmpInParmProblems].
.RE
-With the
-.B EICMP
-keyword, statistics about ICMPv4 error messages are reported.
-Note that ICMPv4 statistics depend on
-.BR sadc 's
-option "-S SNMP" to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
+.B oprmpb6/s
+.RS
+The number of ICMP Parameter Problem messages
+sent by the interface per second
+[ipv6IfIcmpOutParmProblems].
+.RE
-.B ierr/s
+.B iredir6/s
.RS
-The number of ICMP messages per second which the entity received but
-determined as having ICMP-specific errors (bad ICMP
-checksums, bad length, etc.) [icmpInErrors].
+The number of Redirect messages received
+by the interface per second
+[ipv6IfIcmpInRedirects].
.RE
-.B oerr/s
+.B oredir6/s
.RS
-The number of ICMP messages per second which this entity did not send
-due to problems discovered within ICMP such as a lack of buffers [icmpOutErrors].
+The number of Redirect messages sent by
+the interface by second
+[ipv6IfIcmpOutRedirects].
.RE
-.B idstunr/s
+.B ipck2b6/s
.RS
-The number of ICMP Destination Unreachable messages
-received per second [icmpInDestUnreachs].
+The number of ICMP Packet Too Big messages
+received by the interface per second
+[ipv6IfIcmpInPktTooBigs].
.RE
-.B odstunr/s
+.B opck2b6/s
.RS
-The number of ICMP Destination Unreachable messages sent per second [icmpOutDestUnreachs].
+The number of ICMP Packet Too Big messages sent
+by the interface per second
+[ipv6IfIcmpOutPktTooBigs].
.RE
-.B itmex/s
+With the
+.B IP
+keyword, statistics about IPv4 network traffic are reported.
+Note that IPv4 statistics depend on
+.BR sadc 's
+option "-S SNMP"
+to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
+
+.B irec/s
.RS
-The number of ICMP Time Exceeded messages received per second [icmpInTimeExcds].
+The total number of input datagrams received from interfaces
+per second, including those received in error [ipInReceives].
.RE
-.B otmex/s
+.B fwddgm/s
.RS
-The number of ICMP Time Exceeded messages sent per second [icmpOutTimeExcds].
+The number of input datagrams per second, for which this entity was not
+their final IP destination, as a result of which an attempt
+was made to find a route to forward them to that final
+destination [ipForwDatagrams].
.RE
-.B iparmpb/s
+.B idel/s
.RS
-The number of ICMP Parameter Problem messages received per second [icmpInParmProbs].
+The total number of input datagrams successfully delivered per second
+to IP user-protocols (including ICMP) [ipInDelivers].
.RE
-.B oparmpb/s
+.B orq/s
.RS
-The number of ICMP Parameter Problem messages sent per second [icmpOutParmProbs].
+The total number of IP datagrams which local IP user-protocols (including ICMP)
+supplied per second to IP in requests for transmission [ipOutRequests].
+Note that this counter does not include any datagrams counted in fwddgm/s.
.RE
-.B isrcq/s
+.B asmrq/s
.RS
-The number of ICMP Source Quench messages received per second [icmpInSrcQuenchs].
+The number of IP fragments received per second which needed to be
+reassembled at this entity [ipReasmReqds].
.RE
-.B osrcq/s
+.B asmok/s
.RS
-The number of ICMP Source Quench messages sent per second [icmpOutSrcQuenchs].
+The number of IP datagrams successfully re-assembled per second [ipReasmOKs].
.RE
-.B iredir/s
+.B fragok/s
.RS
-The number of ICMP Redirect messages received per second [icmpInRedirects].
+The number of IP datagrams that have been successfully
+fragmented at this entity per second [ipFragOKs].
.RE
-.B oredir/s
+.B fragcrt/s
.RS
-The number of ICMP Redirect messages sent per second [icmpOutRedirects].
+The number of IP datagram fragments that have been
+generated per second as a result of fragmentation at this entity [ipFragCreates].
.RE
With the
-.B TCP
-keyword, statistics about TCPv4 network traffic are reported.
-Note that TCPv4 statistics depend on
+.B EIP
+keyword, statistics about IPv4 network errors are reported.
+Note that IPv4 statistics depend on
.BR sadc 's
option "-S SNMP" to be collected.
The following values are displayed (formal SNMP names between
square brackets):
-.B active/s
+.B ihdrerr/s
.RS
-The number of times TCP connections have made a direct
-transition to the SYN-SENT state from the CLOSED state per second [tcpActiveOpens].
-.RE
-
-.B passive/s
-.RS
-The number of times TCP connections have made a direct
-transition to the SYN-RCVD state from the LISTEN state per second [tcpPassiveOpens].
-.RE
-
-.B iseg/s
-.RS
-The total number of segments received per second, including those
-received in error [tcpInSegs]. This count includes segments received on
-currently established connections.
-.RE
-
-.B oseg/s
-.RS
-The total number of segments sent per second, including those on
-current connections but excluding those containing only
-retransmitted octets [tcpOutSegs].
-.RE
-
-With the
-.B ETCP
-keyword, statistics about TCPv4 network errors are reported.
-Note that TCPv4 statistics depend on
-.BR sadc 's
-option "-S SNMP" to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
-
-.B atmptf/s
-.RS
-The number of times per second 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 per second TCP
-connections have made a direct transition to the LISTEN
-state from the SYN-RCVD state [tcpAttemptFails].
-.RE
-
-.B estres/s
-.RS
-The number of times per second TCP connections have made a direct
-transition to the CLOSED state from either the ESTABLISHED
-state or the CLOSE-WAIT state [tcpEstabResets].
-.RE
-
-.B retrans/s
-.RS
-The total number of segments retransmitted per second - that is, the
-number of TCP segments transmitted containing one or more
-previously transmitted octets [tcpRetransSegs].
-.RE
-
-.B isegerr/s
-.RS
-The total number of segments received in error (e.g., bad
-TCP checksums) per second [tcpInErrs].
-.RE
-
-.B orsts/s
-.RS
-The number of TCP segments sent per second containing the RST flag [tcpOutRsts].
-.RE
-
-With the
-.B UDP
-keyword, statistics about UDPv4 network traffic are reported.
-Note that UDPv4 statistics depend on
-.BR sadc's
-option "-S SNMP" to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
-
-.B idgm/s
-.RS
-The total number of UDP datagrams delivered per second to UDP users [udpInDatagrams].
+The number of input datagrams discarded per second due to errors in
+their IP headers, including bad checksums, version number
+mismatch, other format errors, time-to-live exceeded, errors
+discovered in processing their IP options, etc. [ipInHdrErrors]
.RE
-.B odgm/s
+.B iadrerr/s
.RS
-The total number of UDP datagrams sent per second from this entity [udpOutDatagrams].
+The number of input datagrams discarded per second because the IP
+address in their IP header's destination field was not a
+valid address to be received at this entity. This count
+includes invalid addresses (e.g., 0.0.0.0) and addresses of
+unsupported Classes (e.g., Class E). For entities which are
+not IP routers and therefore do not forward datagrams, this
+counter includes datagrams discarded because the destination
+address was not a local address [ipInAddrErrors].
.RE
-.B noport/s
+.B iukwnpr/s
.RS
-The total number of received UDP datagrams per second for which there
-was no application at the destination port [udpNoPorts].
+The number of locally-addressed datagrams received
+successfully but discarded per second because of an unknown or
+unsupported protocol [ipInUnknownProtos].
.RE
-.B idgmerr/s
+.B idisc/s
.RS
-The number of received UDP datagrams per second that could not be
-delivered for reasons other than the lack of an application
-at the destination port [udpInErrors].
+The number of input IP datagrams per second for which no problems were
+encountered to prevent their continued processing, but which
+were discarded (e.g., for lack of buffer space) [ipInDiscards].
+Note that this counter does not include any datagrams discarded while
+awaiting re-assembly.
.RE
-With the
-.B SOCK6
-keyword, statistics on sockets in use are reported (IPv6).
-Note that IPv6 statistics depend on
-.BR sadc 's
-option "-S IPV6" to be collected.
-The following values are displayed:
-
-.B tcp6sck
+.B odisc/s
.RS
-Number of TCPv6 sockets currently in use.
+The number of output IP datagrams per second for which no problem was
+encountered to prevent their transmission to their
+destination, but which were discarded (e.g., for lack of
+buffer space) [ipOutDiscards].
+Note that this counter would include
+datagrams counted in fwddgm/s if any such packets met
+this (discretionary) discard criterion.
.RE
-.B udp6sck
+.B onort/s
.RS
-Number of UDPv6 sockets currently in use.
+The number of IP datagrams discarded per second because no route could
+be found to transmit them to their destination [ipOutNoRoutes].
+Note that this counter includes any packets counted in fwddgm/s
+which meet this 'no-route' criterion.
+Note that this includes any datagrams which a host cannot route because all
+of its default routers are down.
.RE
-.B raw6sck
+.B asmf/s
.RS
-Number of RAWv6 sockets currently in use.
+The number of failures detected per second by the IP re-assembly
+algorithm (for whatever reason: timed out, errors, etc) [ipReasmFails].
+Note that this is not necessarily a count of discarded IP
+fragments since some algorithms can lose track of the number of
+fragments by combining them as they are received.
.RE
-.B ip6-frag
+.B fragf/s
.RS
-Number of IPv6 fragments currently in use.
+The number of IP datagrams that have been discarded per second because
+they needed to be fragmented at this entity but could not
+be, e.g., because their Don't Fragment flag was set [ipFragFails].
.RE
With the
.RE
With the
-.B ICMP6
-keyword, statistics about ICMPv6 network traffic are reported.
-Note that ICMPv6 statistics depend on
-.BR sadc 's
-option "-S IPV6" to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
+.B NFS
+keyword, statistics about NFS client activity are reported.
+The following values are displayed:
-.B imsg6/s
+.B call/s
.RS
-The total number of ICMP messages received
-by the interface per second which includes all those
-counted by ierr6/s [ipv6IfIcmpInMsgs].
+Number of RPC requests made per second.
.RE
-.B omsg6/s
+.B retrans/s
.RS
-The total number of ICMP messages which this
-interface attempted to send per second [ipv6IfIcmpOutMsgs].
+Number of RPC requests per second, those which needed to be retransmitted (for
+example because of a server timeout).
.RE
-.B iech6/s
+.B read/s
.RS
-The number of ICMP Echo (request) messages
-received by the interface per second [ipv6IfIcmpInEchos].
+Number of 'read' RPC calls made per second.
.RE
-.B iechr6/s
+.B write/s
.RS
-The number of ICMP Echo Reply messages received
-by the interface per second [ipv6IfIcmpInEchoReplies].
+Number of 'write' RPC calls made per second.
.RE
-.B oechr6/s
+.B access/s
.RS
-The number of ICMP Echo Reply messages sent
-by the interface per second [ipv6IfIcmpOutEchoReplies].
+Number of 'access' RPC calls made per second.
.RE
-.B igmbq6/s
+.B getatt/s
.RS
-The number of ICMPv6 Group Membership Query
-messages received by the interface per second
-[ipv6IfIcmpInGroupMembQueries].
+Number of 'getattr' RPC calls made per second.
.RE
-.B igmbr6/s
+With the
+.B NFSD
+keyword, statistics about NFS server activity are reported.
+The following values are displayed:
+
+.B scall/s
.RS
-The number of ICMPv6 Group Membership Response messages
-received by the interface per second
-[ipv6IfIcmpInGroupMembResponses].
+Number of RPC requests received per second.
.RE
-.B ogmbr6/s
+.B badcall/s
.RS
-The number of ICMPv6 Group Membership Response
-messages sent per second
-[ipv6IfIcmpOutGroupMembResponses].
+Number of bad RPC requests received per second, those whose
+processing generated an error.
.RE
-.B igmbrd6/s
+.B packet/s
.RS
-The number of ICMPv6 Group Membership Reduction messages
-received by the interface per second
-[ipv6IfIcmpInGroupMembReductions].
+Number of network packets received per second.
.RE
-.B ogmbrd6/s
+.B udp/s
.RS
-The number of ICMPv6 Group Membership Reduction
-messages sent per second
-[ipv6IfIcmpOutGroupMembReductions].
+Number of UDP packets received per second.
.RE
-.B irtsol6/s
+.B tcp/s
.RS
-The number of ICMP Router Solicit messages
-received by the interface per second
-[ipv6IfIcmpInRouterSolicits].
+Number of TCP packets received per second.
.RE
-.B ortsol6/s
+.B hit/s
.RS
-The number of ICMP Router Solicitation messages
-sent by the interface per second
-[ipv6IfIcmpOutRouterSolicits].
+Number of reply cache hits per second.
.RE
-.B irtad6/s
+.B miss/s
.RS
-The number of ICMP Router Advertisement messages
-received by the interface per second
-[ipv6IfIcmpInRouterAdvertisements].
+Number of reply cache misses per second.
.RE
-.B inbsol6/s
+.B sread/s
.RS
-The number of ICMP Neighbor Solicit messages
-received by the interface per second
-[ipv6IfIcmpInNeighborSolicits].
+Number of 'read' RPC calls received per second.
.RE
-.B onbsol6/s
+.B swrite/s
.RS
-The number of ICMP Neighbor Solicitation
-messages sent by the interface per second
-[ipv6IfIcmpOutNeighborSolicits].
+Number of 'write' RPC calls received per second.
.RE
-.B inbad6/s
+.B saccess/s
.RS
-The number of ICMP Neighbor Advertisement
-messages received by the interface per second
-[ipv6IfIcmpInNeighborAdvertisements].
+Number of 'access' RPC calls received per second.
.RE
-.B onbad6/s
+.B sgetatt/s
.RS
-The number of ICMP Neighbor Advertisement
-messages sent by the interface per second
-[ipv6IfIcmpOutNeighborAdvertisements].
+Number of 'getattr' RPC calls received per second.
.RE
With the
-.B EICMP6
-keyword, statistics about ICMPv6 error messages are reported.
-Note that ICMPv6 statistics depend on
-.BR sadc 's
-option "-S IPV6" to be collected.
-The following values are displayed (formal SNMP names between
-square brackets):
+.B SOCK
+keyword, statistics on sockets in use are reported
+(IPv4).
+The following values are displayed:
-.B ierr6/s
+.B totsck
.RS
-The number of ICMP messages per second which the interface
-received but determined as having ICMP-specific
-errors (bad ICMP checksums, bad length, etc.)
-[ipv6IfIcmpInErrors]
+Total number of sockets used by the system.
.RE
-.B idtunr6/s
+.B tcpsck
.RS
-The number of ICMP Destination Unreachable
-messages received by the interface per second
-[ipv6IfIcmpInDestUnreachs].
+Number of TCP sockets currently in use.
.RE
-.B odtunr6/s
+.B udpsck
.RS
-The number of ICMP Destination Unreachable
-messages sent by the interface per second
-[ipv6IfIcmpOutDestUnreachs].
+Number of UDP sockets currently in use.
.RE
-.B itmex6/s
+.B rawsck
.RS
-The number of ICMP Time Exceeded messages
-received by the interface per second
-[ipv6IfIcmpInTimeExcds].
+Number of RAW sockets currently in use.
.RE
-.B otmex6/s
+.B ip-frag
.RS
-The number of ICMP Time Exceeded messages sent
-by the interface per second
-[ipv6IfIcmpOutTimeExcds].
+Number of IP fragments currently in queue.
.RE
-.B iprmpb6/s
+.B tcp-tw
.RS
-The number of ICMP Parameter Problem messages
-received by the interface per second
-[ipv6IfIcmpInParmProblems].
+Number of TCP sockets in TIME_WAIT state.
.RE
-.B oprmpb6/s
+With the
+.B SOCK6
+keyword, statistics on sockets in use are reported (IPv6).
+Note that IPv6 statistics depend on
+.BR sadc 's
+option "-S IPV6" to be collected.
+The following values are displayed:
+
+.B tcp6sck
.RS
-The number of ICMP Parameter Problem messages
-sent by the interface per second
-[ipv6IfIcmpOutParmProblems].
+Number of TCPv6 sockets currently in use.
.RE
-.B iredir6/s
+.B udp6sck
.RS
-The number of Redirect messages received
-by the interface per second
-[ipv6IfIcmpInRedirects].
+Number of UDPv6 sockets currently in use.
.RE
-.B oredir6/s
+.B raw6sck
.RS
-The number of Redirect messages sent by
-the interface by second
-[ipv6IfIcmpOutRedirects].
+Number of RAWv6 sockets currently in use.
.RE
-.B ipck2b6/s
+.B ip6-frag
.RS
-The number of ICMP Packet Too Big messages
-received by the interface per second
-[ipv6IfIcmpInPktTooBigs].
+Number of IPv6 fragments currently in use.
.RE
-.B opck2b6/s
+With the
+.B SOFT
+keyword, statistics about software-based network processing are reported.
+The following values are displayed:
+
+.B total/s
.RS
-The number of ICMP Packet Too Big messages sent
-by the interface per second
-[ipv6IfIcmpOutPktTooBigs].
+The total number of network frames processed per second.
+.RE
+
+.B dropd/s
+.RS
+The total number of network frames dropped per second because there
+was no room on the processing queue.
+.RE
+
+.B squeezd/s
+.RS
+The number of times the softirq handler function terminated per second
+because its budget was consumed or the time limit was reached, but more
+work could have been done.
+.RE
+
+.B rx_rps/s
+.RS
+The number of times the CPU has been woken up per second
+to process packets via an inter-processor interrupt.
+.RE
+
+.B flw_lim/s
+.RS
+The number of times the flow limit has been reached per second.
+Flow limiting is an optional RPS feature that can be used to limit the number of
+packets queued to the backlog for each flow to a certain amount.
+This can help ensure that smaller flows are processed even though
+much larger flows are pushing packets in.
.RE
With the
-.B UDP6
-keyword, statistics about UDPv6 network traffic are reported.
-Note that UDPv6 statistics depend on
+.B TCP
+keyword, statistics about TCPv4 network traffic are reported.
+Note that TCPv4 statistics depend on
.BR sadc 's
-option "-S IPV6" to be collected.
+option "-S SNMP" to be collected.
The following values are displayed (formal SNMP names between
square brackets):
-.B idgm6/s
+.B active/s
.RS
-The total number of UDP datagrams delivered per second to UDP users
-[udpInDatagrams].
+The number of times TCP connections have made a direct
+transition to the SYN-SENT state from the CLOSED state per second [tcpActiveOpens].
.RE
-.B odgm6/s
+.B passive/s
.RS
-The total number of UDP datagrams sent per second from this
-entity [udpOutDatagrams].
+The number of times TCP connections have made a direct
+transition to the SYN-RCVD state from the LISTEN state per second [tcpPassiveOpens].
.RE
-.B noport6/s
+.B iseg/s
.RS
-The total number of received UDP datagrams per second for which there
-was no application at the destination port [udpNoPorts].
+The total number of segments received per second, including those
+received in error [tcpInSegs]. This count includes segments received on
+currently established connections.
.RE
-.B idgmer6/s
+.B oseg/s
.RS
-The number of received UDP datagrams per second that could not be
-delivered for reasons other than the lack of an application
-at the destination port [udpInErrors].
+The total number of segments sent per second, including those on
+current connections but excluding those containing only
+retransmitted octets [tcpOutSegs].
.RE
With the
-.B FC
-keyword, statistics about fibre channel traffic are reported.
-Note that fibre channel statistics depend on
+.B ETCP
+keyword, statistics about TCPv4 network errors are reported.
+Note that TCPv4 statistics depend on
.BR sadc 's
-option "-S DISK" to be collected.
-The following values are displayed:
+option "-S SNMP" to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
-.B FCHOST
+.B atmptf/s
.RS
-Name of the fibre channel host bus adapter (HBA) interface for which statistics are reported.
+The number of times per second 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 per second TCP
+connections have made a direct transition to the LISTEN
+state from the SYN-RCVD state [tcpAttemptFails].
.RE
-.B fch_rxf/s
+.B estres/s
.RS
-The total number of frames received per second.
+The number of times per second TCP connections have made a direct
+transition to the CLOSED state from either the ESTABLISHED
+state or the CLOSE-WAIT state [tcpEstabResets].
.RE
-.B fch_txf/s
+.B retrans/s
.RS
-The total number of frames transmitted per second.
+The total number of segments retransmitted per second - that is, the
+number of TCP segments transmitted containing one or more
+previously transmitted octets [tcpRetransSegs].
.RE
-.B fch_rxw/s
+.B isegerr/s
.RS
-The total number of transmission words received per second.
+The total number of segments received in error (e.g., bad
+TCP checksums) per second [tcpInErrs].
.RE
-.B fch_txw/s
+.B orsts/s
.RS
-The total number of transmission words transmitted per second.
+The number of TCP segments sent per second containing the RST flag [tcpOutRsts].
.RE
With the
-.B SOFT
-keyword, statistics about software-based network processing are reported.
-The following values are displayed:
+.B UDP
+keyword, statistics about UDPv4 network traffic are reported.
+Note that UDPv4 statistics depend on
+.BR sadc's
+option "-S SNMP" to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
-.B total/s
+.B idgm/s
.RS
-The total number of network frames processed per second.
+The total number of UDP datagrams delivered per second to UDP users [udpInDatagrams].
.RE
-.B dropd/s
+.B odgm/s
.RS
-The total number of network frames dropped per second because there
-was no room on the processing queue.
+The total number of UDP datagrams sent per second from this entity [udpOutDatagrams].
.RE
-.B squeezd/s
+.B noport/s
.RS
-The number of times the softirq handler function terminated per second
-because its budget was consumed or the time limit was reached, but more
-work could have been done.
+The total number of received UDP datagrams per second for which there
+was no application at the destination port [udpNoPorts].
.RE
-.B rx_rps/s
+.B idgmerr/s
.RS
-The number of times the CPU has been woken up per second
-to process packets via an inter-processor interrupt.
+The number of received UDP datagrams per second that could not be
+delivered for reasons other than the lack of an application
+at the destination port [udpInErrors].
.RE
-.B flw_lim/s
+With the
+.B UDP6
+keyword, statistics about UDPv6 network traffic are reported.
+Note that UDPv6 statistics depend on
+.BR sadc 's
+option "-S IPV6" to be collected.
+The following values are displayed (formal SNMP names between
+square brackets):
+
+.B idgm6/s
.RS
-The number of times the flow limit has been reached per second.
-Flow limiting is an optional RPS feature that can be used to limit the number of
-packets queued to the backlog for each flow to a certain amount.
-This can help ensure that smaller flows are processed even though
-much larger flows are pushing packets in.
+The total number of UDP datagrams delivered per second to UDP users
+[udpInDatagrams].
+.RE
+
+.B odgm6/s
+.RS
+The total number of UDP datagrams sent per second from this
+entity [udpOutDatagrams].
+.RE
+
+.B noport6/s
+.RS
+The total number of received UDP datagrams per second for which there
+was no application at the destination port [udpNoPorts].
+.RE
+
+.B idgmer6/s
+.RS
+The number of received UDP datagrams per second that could not be
+delivered for reasons other than the lack of an application
+at the destination port [udpInErrors].
.RE
The
projects / sysstat / commitdiff