-- extracted from draft-ietf-tsvwg-tcp-mib-extension-01.txt -- at Sat Jul 6 06:10:04 2002 TCP-ESTATS-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, Counter32, Integer32, Gauge32, OBJECT-TYPE, Counter64, experimental FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF TEXTUAL-CONVENTION, DateAndTime, TruthValue FROM SNMPv2-TC InetAddressType, InetAddress, InetPortNumber FROM INET-ADDRESS-MIB; tcpEStatsMIB MODULE-IDENTITY LAST-UPDATED "200202202002Z" -- February 20, 2002 ORGANIZATION "IETF TSV Working Group" CONTACT-INFO "Matt Mathis Raghu Reddy Pittsburgh Supercomputing Center Web100 Project Email:mathis@psc.edu Jon Saperia JDS Consulting, Inc. 174 Chapman St. Watertown MA 02472-3063 USA Phone: +1-617-744-1079 Fax: +1-617-249-0874 Email: saperia@jdscons.com" DESCRIPTION "Documentation of TCP performance variables from the Web100 project. See www.web100.org" REVISION "200202202002Z" -- February 20, 2002 DESCRIPTION "Initial version, published as RFC xxxx." -- RFC Editor assigns RFC xxxx ::= { experimental 9999 } tcpEStatsNotifications OBJECT IDENTIFIER ::= { tcpEStatsMIB 0 } tcpEStats OBJECT IDENTIFIER ::= { tcpEStatsMIB 1 } tcpEStatsControl OBJECT IDENTIFIER ::= { tcpEStatsMIB 2 } tcpEStatsConformance OBJECT IDENTIFIER ::= { tcpEStatsMIB 3 } -- -- Textual Conventions -- TcpEStatsOperation ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Indicates whether the table controled by an object with this syntax is enabled and counting statistics or in a disabled state. Requests for object instances in tables that have been placed in a disabled state should be treated as if the table does not exist, that is a NO SUCH should be returned to the requester." SYNTAX INTEGER { enabled(1), disabled(2) } -- -- TCP Connection State Statistics -- tcpEStatsConnectionTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsConnectionEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains connection state information for each TCP connection. Activation of this table is via the tcpEStatsControlState object." ::= { tcpEStats 1 } tcpEStatsConnectionEntry OBJECT-TYPE SYNTAX TcpEStatsConnectionEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry in this table has information about the characteristics of each active and recently closed tcp connection." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsConnectionTable 1 } TcpEStatsConnectionEntry ::= SEQUENCE { tcpEStatsConnectionState INTEGER, tcpEStatsConnectionSACK TruthValue, tcpEStatsConnectionTimeStamps TruthValue, tcpEStatsConnectionECN TruthValue, tcpEStatsConnectionNagle TruthValue, tcpEStatsConnectionSndWindScale Integer32, tcpEStatsConnectionRcvWindScale Integer32 } tcpEStatsConnectionState OBJECT-TYPE SYNTAX INTEGER { wcStateClosed(1), wcStateListen(2), wcStateSynSent(3), wcStateSynReceived(4), wcStateEstablished(5), wcStateFinWait1(6), wcStateFinWait2(7), wcStateCloseWait(8), wcStateLastAck(9), wcStateClosing(10), wcStateTimeWait(11), wcStateDeleteTcb(12) } MAX-ACCESS read-only STATUS current DESCRIPTION "An integer value representing the connection state from the TCP State Transition Diagram." ::= { tcpEStatsConnectionEntry 1 } tcpEStatsConnectionSACK OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if SACK has been negotiated on, else false(2). See RFC 2018." ::= { tcpEStatsConnectionEntry 2 } tcpEStatsConnectionTimeStamps OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "true(1) if timestamps have been negotiated on, else false(2). See RFC 1323." ::= { tcpEStatsConnectionEntry 3 } tcpEStatsConnectionECN OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if ECN has been negotiated on, else false(2)." ::= { tcpEStatsConnectionEntry 4 } tcpEStatsConnectionNagle OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if the Nagle algorithm is being used, else false(2)." ::= { tcpEStatsConnectionEntry 5 } tcpEStatsConnectionSndWindScale OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of Snd.Wind.Scale from RFC 1323. Note that SndWindScale is either zero or the same as WinScaleRcvd." ::= { tcpEStatsConnectionEntry 6 } tcpEStatsConnectionRcvWindScale OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of Rcv.Wind.Scale from RFC 1323. Note that RcvWindScale is either zero or the same as WinScaleSent." ::= { tcpEStatsConnectionEntry 7 } -- -- TCP SYN Options -- tcpEStatsSynOptsTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsSynOptsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains Statistics on options present on the SYN and SYN-ACK. Table activation is controlled by the tcpEStatsControlSynOpts object." ::= { tcpEStats 2 } tcpEStatsSynOptsEntry OBJECT-TYPE SYNTAX TcpEStatsSynOptsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection SYN and SYN-ACk options." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsSynOptsTable 1 } TcpEStatsSynOptsEntry ::= SEQUENCE { tcpEStatsSynOptsActiveOpen TruthValue, tcpEStatsSynOptsMSSSent Gauge32, tcpEStatsSynOptsMSSRcvd Gauge32, tcpEStatsSynOptsWinScaleSent Integer32, tcpEStatsSynOptsWinScaleRcvd Integer32, tcpEStatsSynOptsSACKokSent TruthValue, tcpEStatsSynOptsSACKokRcvd TruthValue, tcpEStatsSynOptsTimeStampSent TruthValue, tcpEStatsSynOptsTimeStampRcvd TruthValue } tcpEStatsSynOptsActiveOpen OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if the local connection traversed the SYN-SENT state. See RFC 793." ::= { tcpEStatsSynOptsEntry 1 } tcpEStatsSynOptsMSSSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value sent in an MSS option, or zero if none." ::= { tcpEStatsSynOptsEntry 2 } tcpEStatsSynOptsMSSRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value received in an MSS option, or zero if none." ::= { tcpEStatsSynOptsEntry 3 } tcpEStatsSynOptsWinScaleSent OBJECT-TYPE SYNTAX Integer32 (-1..14) MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the transmitted window scale option if one was sent; otherwise, a value of -1. See RFC 1323." ::= { tcpEStatsSynOptsEntry 4 } tcpEStatsSynOptsWinScaleRcvd OBJECT-TYPE SYNTAX Integer32 (-1..14) MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the received window scale option if one was received; otherwise, a value of -1. See RFC 1323." ::= { tcpEStatsSynOptsEntry 5 } tcpEStatsSynOptsSACKokSent OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if SACKok option was sent, else false(2). See RFC 2018." ::= { tcpEStatsSynOptsEntry 6 } tcpEStatsSynOptsSACKokRcvd OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if SACKok option was received, else false(2). See RFC 2018." ::= { tcpEStatsSynOptsEntry 7 } tcpEStatsSynOptsTimeStampSent OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if Timestamp option was sent, else false(2). See RFC 1323." ::= { tcpEStatsSynOptsEntry 8 } tcpEStatsSynOptsTimeStampRcvd OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True(1) if Timestamp option was received, else false(2). See RFC 1323." ::= { tcpEStatsSynOptsEntry 9 } -- -- TCP Data Table -- tcpEStatsDataTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsDataEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains statistics on aggregate packets and data sent on a connection. These provide a direct measure of the Internet capacity consumed by a connection and TCPs net throughput." ::= { tcpEStats 3 } tcpEStatsDataEntry OBJECT-TYPE SYNTAX TcpEStatsDataEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection statistics for packets and data." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsDataTable 1 } TcpEStatsDataEntry ::= SEQUENCE { tcpEStatsDataPktsOut Counter32, tcpEStatsDataDataPktsOut Counter32, tcpEStatsDataDataBytesOut Counter64, tcpEStatsDataPktsIn Counter32, tcpEStatsDataDataPktsIn Counter32, tcpEStatsDataDataBytesIn Counter64, tcpEStatsDataSoftErrors Counter32, tcpEStatsDataSoftErrorReason INTEGER, tcpEStatsDataSndUna Counter32, tcpEStatsDataSndNxt Integer32, tcpEStatsDataSndMax Counter32, tcpEStatsDataThruBytesAcked Counter64, tcpEStatsDataSndInitial Counter32, tcpEStatsDataSendWraps Counter32, tcpEStatsDataRcvNxt Counter32, tcpEStatsDataThruBytesReceived Counter64, tcpEStatsDataRecInitial Counter32, tcpEStatsDataCurTime Integer64, tcpEStatsDataStartTime Counter32 } tcpEStatsDataPktsOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of packets sent." ::= { tcpEStatsDataEntry 1 } tcpEStatsDataDataPktsOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets sent containing a positive length data segment." ::= { tcpEStatsDataEntry 2 } tcpEStatsDataDataBytesOut OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of data contained in transmitted segments, including retransmitted data." ::= { tcpEStatsDataEntry 3 } tcpEStatsDataPktsIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets received." ::= { tcpEStatsDataEntry 4 } tcpEStatsDataDataPktsIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets received containing a positive length data segment." ::= { tcpEStatsDataEntry 5 } tcpEStatsDataDataBytesIn OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets contained in received data segments, including retransmitted data. Note that this does not include TCP headers." ::= { tcpEStatsDataEntry 6 } tcpEStatsDataSoftErrors OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number packets that fail various consistency tests." ::= { tcpEStatsDataEntry 7 } tcpEStatsDataSoftErrorReason OBJECT-TYPE SYNTAX INTEGER { belowDataWindow(1), aboveDataWindow(2), belowAckWindow(3), aboveAckWindow(4), belowTSWindow(5), aboveTSWindow(6), dataCheckSum(7) } MAX-ACCESS read-only STATUS current DESCRIPTION "Identifies the consistency test that most recently failed." ::= { tcpEStatsDataEntry 8 } tcpEStatsDataSndUna OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Oldest Unacknowledged Sequence Number." ::= { tcpEStatsDataEntry 9 } tcpEStatsDataSndNxt OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of SND.NXT, the next sequence number to be sent. Note that TCP can retransmit lost data by pulling SndNxt back to the lost data. See 793." ::= { tcpEStatsDataEntry 10 } tcpEStatsDataSndMax OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The farthest forward SND.NXT value. Note that this will be equal to snd_nxt except when snd_nxt is pulled back during a recovery." ::= { tcpEStatsDataEntry 11 } tcpEStatsDataThruBytesAcked OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets for which cumulative acknowledgments have been received. Note that this will be the sum of changes in snd_una, accounting for sequence wraps." ::= { tcpEStatsDataEntry 12 } tcpEStatsDataSndInitial OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Initial send sequence number." ::= { tcpEStatsDataEntry 13 } tcpEStatsDataSendWraps OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This is the number of times snd_max 'passes' ISS." ::= { tcpEStatsDataEntry 14 } tcpEStatsDataRcvNxt OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of RCV.NXT from RFC 793. The next sequence number expected on an incoming segment, and the left or lower edge of the receive window." ::= { tcpEStatsDataEntry 15 } tcpEStatsDataThruBytesReceived OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets for which cumulative acknowledgments have been sent. Note that this will be the sum of changes in rcv_nxt, accounting for sequence wraps." ::= { tcpEStatsDataEntry 16 } tcpEStatsDataRecInitial OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Initial receive sequence number." ::= { tcpEStatsDataEntry 17 } tcpEStatsDataCurTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Connection duration in micro-seconds from StartTime to the most recent protocol event (packet sent or received)." ::= { tcpEStatsDataEntry 18 } tcpEStatsDataStartTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Time of the start of the connection." ::= { tcpEStatsDataEntry 19 } -- -- TCP Sender Table -- tcpEStatsSndCongTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsSndCongEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "First level instruments to determine which subsystems are controlling overall performance by throttling TCP data transmission. The three parallel sets of instruments measure the extent to which the receiver window, network congestion or the senders available data limit TCP's performance. They reflect bottlenecks at the receiver, network or sender respectively. It also includes instruments on all events needed to model congestion along the network path. The instruments are sufficient to fit the actual performance to an updated macroscopic performance model [MACRO]. This in turn reveals the nature of the congestion " ::= { tcpEStats 4 } tcpEStatsSndCongEntry OBJECT-TYPE SYNTAX TcpEStatsSndCongEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection sender triage statistics." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsSndCongTable 1 } TcpEStatsSndCongEntry ::= SEQUENCE { } TcpEStatsSndCongEntry ::= SEQUENCE { tcpEStatsSndCongSndLimTransRwin Counter32, tcpEStatsSndCongSndLimTimeRwin Counter32, tcpEStatsSndCongSndLimBytesRwin Counter64, tcpEStatsSndCongSndLimTransCwnd Counter32, tcpEStatsSndCongSndLimTimeCwnd Counter32, tcpEStatsSndCongSndLimBytesCwnd Counter64, tcpEStatsSndCongSndLimTransSnd Counter32, tcpEStatsSndCongSndLimTimeSnd Counter32, tcpEStatsSndCongSndLimBytesSnd Counter64, tcpEStatsSndCongSlowStart Counter32, tcpEStatsSndCongCongAvoid Counter32, tcpEStatsSndCongCongSignals Counter32, tcpEStatsSndCongOtherReductions Counter32, tcpEStatsSndCongCongOverCount Counter32, tcpEStatsSndCongCurCwnd Gauge32, tcpEStatsSndCongMaxCwnd Gauge32, tcpEStatsSndCongLimCwnd Gauge32, tcpEStatsSndCongCurSsthresh Gauge32, tcpEStatsSndCongMaxSsthresh Gauge32, tcpEStatsSndCongMinSsthresh Gauge32 } tcpEStatsSndCongSndLimTransRwin OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into the 'Receiver Limited' state from either the 'Congestion Limited' or 'Sender Limited' states. This state is entered whenever TCP transmission stops because the sender has filled the announced receiver window." ::= { tcpEStatsSndCongEntry 1 } tcpEStatsSndCongSndLimTimeRwin OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in msecs) spent in the 'Receiver Limited' state. See SndLimTransRwin." ::= { tcpEStatsSndCongEntry 2 } tcpEStatsSndCongSndLimBytesRwin OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative octets sent while in the 'Receiver Limited' state. See SndLimTransRwin." ::= { tcpEStatsSndCongEntry 3 } tcpEStatsSndCongSndLimTransCwnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into the 'Congestion Limited' state from either the 'Receiver Limited' or 'Sender Limited' states. This state is entered whenever TCP transmission stops because the sender has reached some limit defined by congestion control (e.g. cwnd) or other algorithms (retransmission timeouts) designed to control network traffic." ::= { tcpEStatsSndCongEntry 4 } tcpEStatsSndCongSndLimTimeCwnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in msecs) spent in the 'Congestion Limited' state. See SndLimTransCwnd. When there is a retransmission timeout, in should be counted in SndLimTimeCwnd (and not the cumulative time for some other state.)" ::= { tcpEStatsSndCongEntry 5 } tcpEStatsSndCongSndLimBytesCwnd OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative bytes sent while in the 'Congestion Limited' state. See SndLimTransCwnd." ::= { tcpEStatsSndCongEntry 6 } tcpEStatsSndCongSndLimTransSnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into the 'Sender Limited' state from either the 'Receiver Limited' or 'Congestion Limited' states. This state is entered whenever TCP transmission stops due to some sender limit such as running out of application data or other resources and the Karn algorithm. When TCP stops sending data for any reason which can not be classified as Receiver Limited or Congestion Limited it must be treated as Sender Limited." ::= { tcpEStatsSndCongEntry 7 } tcpEStatsSndCongSndLimTimeSnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in msecs) spent in the 'Sender Limited' state. See SndLimTransSnd." ::= { tcpEStatsSndCongEntry 8 } tcpEStatsSndCongSndLimBytesSnd OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative bytes sent while in the 'Sender Limited' state. See SndLimTransSnd." ::= { tcpEStatsSndCongEntry 9 } tcpEStatsSndCongSlowStart OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times the congestion window has been increased by the Slow Start algorithm. See RFC 2581." ::= { tcpEStatsSndCongEntry 10 } tcpEStatsSndCongCongAvoid OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times the congestion window has been increased by the Congestion Avoidance algorithm. See RFC 2581." ::= { tcpEStatsSndCongEntry 11 } tcpEStatsSndCongCongSignals OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of multiplicative downward congestion window adjustments due to all forms of congestion signals, including Fast Retransmit, ECN and timeouts. Note that retransmission timeouts multiplicatively reduce the window implicitly by setting ssthresh. In order to minimize spurious congestion indications due to out of order segments, CongstionSignals should be increment in association with the Fast Retransmit algorithm." ::= { tcpEStatsSndCongEntry 12 } tcpEStatsSndCongOtherReductions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of congestion window reductions made as a result of anything other than AIMD congestion control algorithms. All window reductions MUST be counted as either CongestionSignals or OtherReductions. Examples of non-multiplicative window reductions include experimental algorithms such as Vegas." ::= { tcpEStatsSndCongEntry 13 } tcpEStatsSndCongCongOverCount OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of congestion events which were 'backed out' of the congestion control state machine such that the congestion window was restored to a prior value. Backed out congestion events can not be backed out of PreCongSumCwnd, etc." ::= { tcpEStatsSndCongEntry 14 } tcpEStatsSndCongCurCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current congestion window, in octets." ::= { tcpEStatsSndCongEntry 15 } tcpEStatsSndCongMaxCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum congestion window used, in octets." ::= { tcpEStatsSndCongEntry 16 } tcpEStatsSndCongLimCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum congestion window which may be used, in octets." ::= { tcpEStatsSndCongEntry 17 } tcpEStatsSndCongCurSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current slow start threshold in octets." ::= { tcpEStatsSndCongEntry 18 } tcpEStatsSndCongMaxSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum slow start threshold, excluding the initial value." ::= { tcpEStatsSndCongEntry 19 } tcpEStatsSndCongMinSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum slow start threshold." ::= { tcpEStatsSndCongEntry 20 } -- -- TCP Path Table -- tcpEStatsPathTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsPathEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Instruments that characterize the segment loss mechanism by collecting statistics on how the losses are correlated to other losses and protocol events. Instruments at the sender to detect other types of non-loss congestion signals such as source quench or ECN. It also Instruments at the sender to infer that the TCP's reliable delivery mechanisms are being confused by packet reordering on the path from the sender to the receiver. Sender's maximum segment size, and the range of values explored by the MTU discovery algorithm. " ::= { tcpEStats 5 } tcpEStatsPathEntry OBJECT-TYPE SYNTAX TcpEStatsPathEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection path statistics." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsPathTable 1 } TcpEStatsPathEntry ::= SEQUENCE { tcpEStatsPathFastRetran Counter32, tcpEStatsPathTimeouts Counter32, tcpEStatsPathSubsequentTimeouts Counter32, tcpEStatsPathCurTimeoutCount Gauge32, tcpEStatsPathAbruptTimeouts Counter32, tcpEStatsPathPktsRetrans Counter32, tcpEStatsPathBytesRetrans Counter32, tcpEStatsPathDupAcksIn Counter32, tcpEStatsPathSACKsRcvd Counter32, tcpEStatsPathSACKBlocksRcvd Counter32, tcpEStatsPathPreCongSumCwnd Counter32, tcpEStatsPathPreCongSumRTT Counter32, tcpEStatsPathPostCongSumRTT Counter32, tcpEStatsPathPostCongCountRTT Counter32, tcpEStatsPathECNsignals Counter32, tcpEStatsPathECERcvd Counter32, tcpEStatsPathSendStall Counter32, tcpEStatsPathQuenchRcvd Counter32, tcpEStatsPathRetranThresh Gauge32, tcpEStatsPathSndDupAckEpisodes Integer32, tcpEStatsPathSumBytesReordered Integer32, tcpEStatsPathNonRecovDA Counter32, tcpEStatsPathAckAfterFR Counter32, tcpEStatsPathDSACKDups Counter32, tcpEStatsPathSampleRTT Gauge32, tcpEStatsPathSmoothedRTT Gauge32, tcpEStatsPathRTTVar Gauge32, tcpEStatsPathMaxRTT Gauge32, tcpEStatsPathMinRTT Gauge32, tcpEStatsPathSumRTT Counter64, tcpEStatsPathCountRTT Counter32, tcpEStatsPathCurRTO Gauge32, tcpEStatsPathMaxRTO Gauge32, tcpEStatsPathMinRTO Gauge32, tcpEStatsPathCurMSS Gauge32, tcpEStatsPathMaxMSS Gauge32, tcpEStatsPathMinMSS Gauge32 } tcpEStatsPathFastRetran OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of invocations of the Fast Retransmit algorithm." ::= { tcpEStatsPathEntry 1 } tcpEStatsPathTimeouts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times the retransmit timeout has expired when the RTO backoff multiplier is equal to one." ::= { tcpEStatsPathEntry 2 } tcpEStatsPathSubsequentTimeouts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times the retransmit timeout has expired when the RTO backoff multiplier is greater than one. See RFC 2988." ::= { tcpEStatsPathEntry 3 } tcpEStatsPathCurTimeoutCount OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of times the retransmit timeout has expired without receiving an acknowledgment for new data. See RFC 2988." ::= { tcpEStatsPathEntry 4 } tcpEStatsPathAbruptTimeouts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of timeouts that occured without any immediately preceding duplicate acknowledgments or other indications of congestion as determined by the implementation." ::= { tcpEStatsPathEntry 5 } tcpEStatsPathPktsRetrans OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of segments transmitted containing at least some retransmitted data." ::= { tcpEStatsPathEntry 6 } tcpEStatsPathBytesRetrans OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets retransmitted." ::= { tcpEStatsPathEntry 7 } tcpEStatsPathDupAcksIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate ACKs received." ::= { tcpEStatsPathEntry 8 } tcpEStatsPathSACKsRcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of SACK options received. See RFC 2018." ::= { tcpEStatsPathEntry 9 } tcpEStatsPathSACKBlocksRcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of SACK blocks received (within SACK options)." ::= { tcpEStatsPathEntry 10 } tcpEStatsPathPreCongSumCwnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the values of the congestion window, in octets, captured each time a congestion signal is received. This MUST be updated each time CongestionSignals is incremented, such that the ratio is the average window at congestion." ::= { tcpEStatsPathEntry 11 } tcpEStatsPathPreCongSumRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Sum of the last sample of the RTT prior to a received congestion signals. This MUST be updated each time CongestionSignals is incremented, such that the ratio is the average RTT just prior to congestion." ::= { tcpEStatsPathEntry 12 } tcpEStatsPathPostCongSumRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Sum of the first RTT sample following a received congestion signal." ::= { tcpEStatsPathEntry 13 } tcpEStatsPathPostCongCountRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of RTT samples included in PostCongSumRTT, such that the ratio is average RTT just after congestion." ::= { tcpEStatsPathEntry 14 } tcpEStatsPathECNsignals OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of congestion signals delivered via all forms of explicit congestion notification including the ECE bit and failing the ECN nonce check, etc." ::= { tcpEStatsPathEntry 15 } tcpEStatsPathECERcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of congestion signals received via the RFC3168 ECE bit." ::= { tcpEStatsPathEntry 16 } tcpEStatsPathSendStall OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of interface stalls or other sender local resource limitations that are treated as congestion signals." ::= { tcpEStatsPathEntry 17 } tcpEStatsPathQuenchRcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of ICMP quench messages that are treated as congestion signals." ::= { tcpEStatsPathEntry 18 } tcpEStatsPathRetranThresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate acknowledgments required to trigger Fast Retransmit." ::= { tcpEStatsPathEntry 19 } tcpEStatsPathSndDupAckEpisodes OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times that a duplicate acknowledgment episode ends without a retransmission (e.g. due to reorderd data)." ::= { tcpEStatsPathEntry 20 } tcpEStatsPathSumBytesReordered OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the amounts SND.UNA advances on the acknowledgment which ends a dup-ack episodes without a retransmission." ::= { tcpEStatsPathEntry 21 } tcpEStatsPathNonRecovDA OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Duplicate acks (or SACKS) attributed to out-of-order segments because they were withdrawn prior to reaching RetranThresh and triggering fast retransmit." ::= { tcpEStatsPathEntry 22 } tcpEStatsPathAckAfterFR OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of acknowledgments reporting out-of-order segments after the segments have already be retransmitted (e.g. as detected by the Eiffel algorithm)." ::= { tcpEStatsPathEntry 23 } tcpEStatsPathDSACKDups OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate segments reported to the local host by D-SACK blocks. See RFC 2883." ::= { tcpEStatsPathEntry 24 } tcpEStatsPathSampleRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The most recent raw round trip time measurement, in milliseconds, used in calculation of the RTO." ::= { tcpEStatsPathEntry 25 } tcpEStatsPathSmoothedRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The smoothed round trip time, in milliseconds, used in calculation of the RTO. See SRTT in RFC 2988" ::= { tcpEStatsPathEntry 26 } tcpEStatsPathRTTVar OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The round trip time variation, in milliseconds, used in calculation of the RTO. See RTTVAR in RFC 2988." ::= { tcpEStatsPathEntry 27 } tcpEStatsPathMaxRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum sampled round trip time, in milliseconds." ::= { tcpEStatsPathEntry 28 } tcpEStatsPathMinRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum sampled round trip time, in milliseconds." ::= { tcpEStatsPathEntry 29 } tcpEStatsPathSumRTT OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of all sampled round trip times, in milliseconds." ::= { tcpEStatsPathEntry 30 } tcpEStatsPathCountRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of round trip time samples included in SumRTT." ::= { tcpEStatsPathEntry 31 } tcpEStatsPathCurRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current value of the retransmit timer RTO, in milliseconds, not scaled by the RTO backoff multiplier. See RFC 2988." ::= { tcpEStatsPathEntry 32 } tcpEStatsPathMaxRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum value of the retransmit timmer RTO, in milliseconds, not scaled by the RTO backoff multiplier. See RFC 2988." ::= { tcpEStatsPathEntry 33 } tcpEStatsPathMinRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum value of the retransmit timmer RTO, in milliseconds, not scaled by the RTO backoff multiplier. See RFC 2988." ::= { tcpEStatsPathEntry 34 } tcpEStatsPathCurMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current maximum segment size (MSS), in octets." ::= { tcpEStatsPathEntry 35 } tcpEStatsPathMaxMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum MSS, in octets." ::= { tcpEStatsPathEntry 36 } tcpEStatsPathMinMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum MSS, in octets." ::= { tcpEStatsPathEntry 37 } -- -- TCP Sender Buffer Table -- tcpEStatsSendBuffTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsSendBuffEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Instruments on the senders buffer usage, including any buffering in the application interface to TCP and the retransmit queue." ::= { tcpEStats 6 } tcpEStatsSendBuffEntry OBJECT-TYPE SYNTAX TcpEStatsSendBuffEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection sender buffer statistics." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsSendBuffTable 1 } TcpEStatsSendBuffEntry ::= SEQUENCE { tcpEStatsSendBuffLimSndBuf Gauge32, tcpEStatsSendBuffCurRetxQ Gauge32, tcpEStatsSendBuffMaxRetxQ Gauge32, tcpEStatsSendBuffCurAppWQueue Gauge32, tcpEStatsSendBuffMaxAppWQueue Gauge32, tcpEStatsSendBuffLimAppWQueue Gauge32, tcpEStatsSendBuffCurRetxQSeq Gauge32, tcpEStatsSendBuffMaxRetxQSeq Gauge32, tcpEStatsSendBuffCurAppWQueueSeq Gauge32, tcpEStatsSendBuffMaxAppWQueueSeq Gauge32, tcpEStatsSendBuffLimAppWQueueSeq Gauge32, tcpEStatsSendBuffSTuneErr TruthValue } tcpEStatsSendBuffLimSndBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of bytes of memory which may be allocated to queuing both transmitted and untransmitted data." ::= { tcpEStatsSendBuffEntry 1 } tcpEStatsSendBuffCurRetxQ OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of memory currently allocated to the retransmit queue." ::= { tcpEStatsSendBuffEntry 2 } tcpEStatsSendBuffMaxRetxQ OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes or memory allocated to the retransmit queue." ::= { tcpEStatsSendBuffEntry 3 } tcpEStatsSendBuffCurAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of memory currently allocated to queuing untransmitted data." ::= { tcpEStatsSendBuffEntry 4 } tcpEStatsSendBuffMaxAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes of memory allocated to queuing untransmitted data." ::= { tcpEStatsSendBuffEntry 5 } tcpEStatsSendBuffLimAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of bytes of memory which may be allocated to queuing untransmitted data." ::= { tcpEStatsSendBuffEntry 6 } tcpEStatsSendBuffCurRetxQSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of sequence space data currently held in the retransmit queue." ::= { tcpEStatsSendBuffEntry 7 } tcpEStatsSendBuffMaxRetxQSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of octets of sequence space data held in the retransmit queue." ::= { tcpEStatsSendBuffEntry 8 } tcpEStatsSendBuffCurAppWQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of octets of untransmitted sequence space data currently queued." ::= { tcpEStatsSendBuffEntry 9 } tcpEStatsSendBuffMaxAppWQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "he maximum number of octets of untransmitted sequence space data queued." ::= { tcpEStatsSendBuffEntry 10 } tcpEStatsSendBuffLimAppWQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of octets of untransmitted sequence space data which may be queued." ::= { tcpEStatsSendBuffEntry 11 } tcpEStatsSendBuffSTuneErr OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "True indicates an tuning error. Error indications must be explicitly cleared." ::= { tcpEStatsSendBuffEntry 12 } -- -- TCP Local Receiver Table -- tcpEStatsRecTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsRecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Instruments on the state of the Local receiver and instruments on the receiver buffer usage, including any buffering in the application interface to TCP and the reassembly queue." ::= { tcpEStats 7 } tcpEStatsRecEntry OBJECT-TYPE SYNTAX TcpEStatsRecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection local receiver statistics." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsRecTable 1 } TcpEStatsRecEntry ::= SEQUENCE { tcpEStatsRecCurRwinSent Gauge32, tcpEStatsRecMaxRwinSent Gauge32, tcpEStatsRecMinRwinSent Gauge32, tcpEStatsRecLimRwin Integer32, tcpEStatsRecDupAckEpisodes Counter32, tcpEStatsRecDupAcksOut Counter32, tcpEStatsRecCERcvd Counter32, tcpEStatsRecECNSent Counter32, tcpEStatsRecECNNonceRcvd Counter32, tcpEStatsRecLimRcvBuf Gauge32, tcpEStatsRecCurReasmQueue Gauge32, tcpEStatsRecMaxReasmQueue Gauge32, tcpEStatsRecCurAppRQueue Gauge32, tcpEStatsRecMaxAppRQueue Gauge32, tcpEStatsRecCurReasmQueueSeq Gauge32, tcpEStatsRecMaxReasmQueueSeq Gauge32, tcpEStatsRecCurAppRQueueSeq Gauge32, tcpEStatsRecMaxAppRQueueSeq Gauge32 } tcpEStatsRecCurRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The most recent window advertisement sent, in octets." ::= { tcpEStatsRecEntry 1 } tcpEStatsRecMaxRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum window advertisement sent, in octets." ::= { tcpEStatsRecEntry 2 } tcpEStatsRecMinRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum window advertisement sent, excluding the initial unscaled window advertised on the SYN, in octets." ::= { tcpEStatsRecEntry 3 } tcpEStatsRecLimRwin OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum window advertisement which may be sent, in octets." ::= { tcpEStatsRecEntry 4 } tcpEStatsRecDupAckEpisodes OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times that a contiguous series of duplicate acknowledgments have been sent." ::= { tcpEStatsRecEntry 5 } tcpEStatsRecDupAcksOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate ACKs sent." ::= { tcpEStatsRecEntry 6 } tcpEStatsRecCERcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Received segments with Congestion Experienced bits. See RFC 2481." ::= { tcpEStatsRecEntry 7 } tcpEStatsRecECNSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of times CE bits have set ECN. See RFC 2481." ::= { tcpEStatsRecEntry 8 } tcpEStatsRecECNNonceRcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of ECN Nonces received. Note that the low bit is the same as the one bit nonce sum." ::= { tcpEStatsRecEntry 9 } tcpEStatsRecLimRcvBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum number of bytes of memory which may be allocated to queuing both in-order and out-of-order recieved data." ::= { tcpEStatsRecEntry 10 } tcpEStatsRecCurReasmQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of memory currently allocated to the reassembly queue." ::= { tcpEStatsRecEntry 11 } tcpEStatsRecMaxReasmQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes of memory allocated to the reassembly queue." ::= { tcpEStatsRecEntry 12 } tcpEStatsRecCurAppRQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of bytes of memory used to hold receive data that has been acknowledged but not yet delivered to the application." ::= { tcpEStatsRecEntry 13 } tcpEStatsRecMaxAppRQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes of memory used to hold receive data that has been acknowledged but not yet delivered to the application." ::= { tcpEStatsRecEntry 14 } tcpEStatsRecCurReasmQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of octets of sequence space data spanned by the reassembly queue, from the newest (left most byte) to RCV.NXT. See RFC 793." ::= { tcpEStatsRecEntry 15 } tcpEStatsRecMaxReasmQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of octets of sequence space data spanned by the reassembly queue, from the newest (left most byte) to RCV.NXT. See RFC 793." ::= { tcpEStatsRecEntry 16 } tcpEStatsRecCurAppRQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of octets of sequence space spanned by receive data that has been acknowledged but not yet delivered to the application." ::= { tcpEStatsRecEntry 17 } tcpEStatsRecMaxAppRQueueSeq OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of octets of sequence space spanned by receive data that has been acknowledged but not yet delivered to the application." ::= { tcpEStatsRecEntry 18 } -- -- TCP Observed Receiver Window Table -- tcpEStatsObsRecTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsObsRecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Instruments on receiver window updates that can be used to identify bottlenecks at the receiver. These can be collected at the sender or anywhere along the network path, including at the receiver." ::= { tcpEStats 8 } tcpEStatsObsRecEntry OBJECT-TYPE SYNTAX TcpEStatsObsRecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection information on receiver window." INDEX { tcpEStatsConnectIdId } ::= { tcpEStatsObsRecTable 1 } TcpEStatsObsRecEntry ::= SEQUENCE { tcpEStatsObsRecCurRwinRcvd Gauge32, tcpEStatsObsRecMaxRwinRcvd Gauge32, tcpEStatsObsRecMinRwinRcvd Gauge32 } tcpEStatsObsRecCurRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The most recent window advertisement received, in octets." ::= { tcpEStatsObsRecEntry 1 } tcpEStatsObsRecMaxRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum window advertisement received, in octets." ::= { tcpEStatsObsRecEntry 2 } tcpEStatsObsRecMinRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum window advertisement received, in octets." ::= { tcpEStatsObsRecEntry 3 } -- -- TCP Connection ID Table -- There is overlap with the new RFC2012bis TCP Connection -- table. This approach was used to make it easier for -- implementations that may not have access to information in a -- sub-agent realizing the TCP Connection table. Also notice -- there is a semantic difference in the latency of row removal -- in this table. Row are expected to remain in this table longer -- than in a standard TCP Connection table. Other than this -- latency difference the semantics of the first six objects in -- this table are the same as the new TCP Connection table and -- the DESCRIPTIONS come from the new document. tcpEStatsConnectIdTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsConnectIdEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table maps a connection ID used by other tables in this MIB Module with the information that uniquely identifies each active TCP connection. Entries are retained in this table for at least 30 seconds after the TCP connection first enters the closed state." ::= { tcpEStats 9 } tcpEStatsConnectIdEntry OBJECT-TYPE SYNTAX TcpEStatsConnectIdEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Connection ID table." INDEX { tcpEStatsConnectLocalAddressType, tcpEStatsConnectLocalAddress, tcpEStatsConnectLocalPort, tcpEStatsConnectRemAddressType, tcpEStatsConnectRemAddress, tcpEStatsConnectRemPort } ::= { tcpEStatsConnectIdTable 1 } TcpEStatsConnectIdEntry ::= SEQUENCE { tcpEStatsConnectLocalAddressType InetAddressType, tcpEStatsConnectLocalAddress InetAddress, tcpEStatsConnectLocalPort InetPortNumber, tcpEStatsConnectRemAddressType InetAddressType, tcpEStatsConnectRemAddress InetAddress, tcpEStatsConnectRemPort InetPortNumber, tcpEStatsConnectIdId Integer32 } tcpEStatsConnectLocalAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of tcpEStatsConnectLocalAddress. Only IPv4 and IPv6 addresses are expected." ::= { tcpEStatsConnectIdEntry 1 } tcpEStatsConnectLocalAddress OBJECT-TYPE SYNTAX InetAddress (SIZE(0..36)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The local IP address for this TCP connection. In the case of a connection in the listen state which is willing to accept connections for any IP interface associated with the node, a value of all zeroes is used." ::= { tcpEStatsConnectIdEntry 2 } tcpEStatsConnectLocalPort OBJECT-TYPE SYNTAX InetPortNumber MAX-ACCESS not-accessible STATUS current DESCRIPTION "The local port number for this TCP connection." ::= {tcpEStatsConnectIdEntry 3 } tcpEStatsConnectRemAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of tcpEStatsConnectRemAddress. Only IPv4 and IPv6 addresses are expected. Must be the same as tcpEStatsConnectLocalAddressType." ::= { tcpEStatsConnectIdEntry 4 } tcpEStatsConnectRemAddress OBJECT-TYPE SYNTAX InetAddress (SIZE(0..36)) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The remote IP address for this TCP connection." ::= { tcpEStatsConnectIdEntry 5 } tcpEStatsConnectRemPort OBJECT-TYPE SYNTAX InetPortNumber MAX-ACCESS not-accessible STATUS current DESCRIPTION "The remote port number for this TCP connection." ::= { tcpEStatsConnectIdEntry 6 } tcpEStatsConnectIdId OBJECT-TYPE SYNTAX Integer32 (0..2147483647) MAX-ACCESS read-only STATUS current DESCRIPTION "A unique integer value assigned to each TCP Connection entry. Assignment will begin at 1 and increase to the maximum value and then start again at 1 skipping in use values." ::= { tcpEStatsConnectIdEntry 7 } -- The tcpEStatsControl Group -- The scalar objects in this group are used to control the -- activation and deactivation of the TCP Extended Statistics -- tables in this module. -- tcpEStatsControlState OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Connection State Statistics table." ::= { tcpEStatsControl 1 } tcpEStatsControlSynOpts OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP SYN Options table." ::= { tcpEStatsControl 2 } tcpEStatsControlData OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Data Table." ::= { tcpEStatsControl 3 } tcpEStatsControlSndCong OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Sender Table." ::= { tcpEStatsControl 4 } tcpEStatsControlPath OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Path Table." ::= { tcpEStatsControl 5 } tcpEStatsControlSendBuff OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Sender Buffer Table." ::= { tcpEStatsControl 6 } tcpEStatsControlLocRec OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Local Receiver Table." ::= { tcpEStatsControl 7 } tcpEStatsControlObsRec OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Observed Receiver Window Table." ::= { tcpEStatsControl 8 } tcpEStatsControlConnectId OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Connection ID Table." ::= { tcpEStatsControl 9 } -- -- Conformance Definitions -- tcpEStatsCompliances OBJECT IDENTIFIER ::= { tcpEStatsConformance 1 } tcpEStatsGroups OBJECT IDENTIFIER ::= { tcpEStatsConformance 2 } -- Compliance Statements tcpEStatsCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "Compliance statement for all systems that implement TCP extended statistics." MODULE -- this module MANDATORY-GROUPS { tcpEStats, tcpEStatsControl, tcpEStatsNotifications } ::= { tcpEStatsCompliances 1 } -- Units of Conformance tcpEStatsGroup OBJECT-GROUP OBJECTS { tcpEStatsConnectionState, tcpEStatsConnectionSACK, tcpEStatsConnectionTimeStamps, tcpEStatsConnectionECN, tcpEStatsConnectionNagle, tcpEStatsConnectionSndWindScale, tcpEStatsConnectionRcvWindScale, tcpEStatsSynOptsActiveOpen, tcpEStatsSynOptsMSSSent, tcpEStatsSynOptsMSSRcvd, tcpEStatsSynOptsWinScaleSent, tcpEStatsSynOptsWinScaleRcvd, tcpEStatsSynOptsSACKokSent, tcpEStatsSynOptsSACKokRcvd, tcpEStatsSynOptsTimeStampSent, tcpEStatsSynOptsTimeStampRcvd, tcpEStatsDataPktsOut, tcpEStatsDataDataPktsOut, tcpEStatsDataDataBytesOut, tcpEStatsDataPktsIn, tcpEStatsDataDataPktsIn, tcpEStatsDataDataBytesIn, tcpEStatsDataSoftErrors, tcpEStatsDataSoftErrorReason, tcpEStatsDataSndUna, tcpEStatsDataSndNxt, tcpEStatsDataSndMax, tcpEStatsDataThruBytesAcked, tcpEStatsDataSndInitial, tcpEStatsDataSendWraps, tcpEStatsDataRcvNxt, tcpEStatsDataThruBytesReceived, tcpEStatsDataRecInitial, tcpEStatsDataCurTime, tcpEStatsDataStartTime, tcpEStatsSndCongSndLimTransRwin, tcpEStatsSndCongSndLimTimeRwin, tcpEStatsSndCongSndLimBytesRwin, tcpEStatsSndCongSndLimTransCwnd, tcpEStatsSndCongSndLimTimeCwnd, tcpEStatsSndCongSndLimBytesCwnd, tcpEStatsSndCongSndLimTransSnd, tcpEStatsSndCongSndLimTimeSnd, tcpEStatsSndCongSndLimBytesSnd, tcpEStatsSndCongSlowStart, tcpEStatsSndCongCongAvoid, tcpEStatsSndCongCongSignals, tcpEStatsSndCongOtherReductions, tcpEStatsSndCongCongOverCount, tcpEStatsSndCongCurCwnd, tcpEStatsSndCongMaxCwnd, tcpEStatsSndCongLimCwnd, tcpEStatsSndCongCurSsthresh, tcpEStatsSndCongMaxSsthresh, tcpEStatsSndCongMinSsthresh, tcpEStatsPathFastRetran, tcpEStatsPathTimeouts, tcpEStatsPathSubsequentTimeouts, tcpEStatsPathCurTimeoutCount, tcpEStatsPathAbruptTimeouts, tcpEStatsPathPktsRetrans, tcpEStatsPathBytesRetrans, tcpEStatsPathDupAcksIn, tcpEStatsPathSACKsRcvd, tcpEStatsPathSACKBlocksRcvd, tcpEStatsPathPreCongSumCwnd, tcpEStatsPathPreCongSumRTT, tcpEStatsPathPostCongSumRTT, tcpEStatsPathPostCongCountRTT, tcpEStatsPathECNsignals, tcpEStatsPathECERcvd, tcpEStatsPathSendStall, tcpEStatsPathQuenchRcvd, tcpEStatsPathRetranThresh, tcpEStatsPathSndDupAckEpisodes, tcpEStatsPathSumBytesReordered, tcpEStatsPathNonRecovDA, tcpEStatsPathAckAfterFR, tcpEStatsPathDSACKDups, tcpEStatsPathSampleRTT, tcpEStatsPathSmoothedRTT, tcpEStatsPathRTTVar, tcpEStatsPathMaxRTT, tcpEStatsPathMinRTT, tcpEStatsPathSumRTT, tcpEStatsPathCountRTT, tcpEStatsPathCurRTO, tcpEStatsPathMaxRTO, tcpEStatsPathMinRTO, tcpEStatsPathCurMSS, tcpEStatsPathMaxMSS, tcpEStatsPathMinMSS, tcpEStatsSendBuffLimSndBuf, tcpEStatsSendBuffCurRetxQ, tcpEStatsSendBuffMaxRetxQ, tcpEStatsSendBuffCurAppWQueue, tcpEStatsSendBuffMaxAppWQueue, tcpEStatsSendBuffLimAppWQueue, tcpEStatsSendBuffCurRetxQSeq, tcpEStatsSendBuffMaxRetxQSeq, tcpEStatsSendBuffCurAppWQueueSeq, tcpEStatsSendBuffMaxAppWQueueSeq, tcpEStatsSendBuffLimAppWQueueSeq, tcpEStatsSendBuffSTuneErr, tcpEStatsRecCurRwinSent, tcpEStatsRecMaxRwinSent, tcpEStatsRecMinRwinSent, tcpEStatsRecLimRwin, tcpEStatsRecDupAckEpisodes, tcpEStatsRecDupAcksOut, tcpEStatsRecCERcvd, tcpEStatsRecECNSent, tcpEStatsRecECNNonceRcvd, tcpEStatsRecLimRcvBuf, tcpEStatsRecCurReasmQueue, tcpEStatsRecMaxReasmQueue, tcpEStatsRecCurAppRQueue, tcpEStatsRecMaxAppRQueue, tcpEStatsRecCurReasmQueueSeq, tcpEStatsRecMaxReasmQueueSeq, tcpEStatsRecCurAppRQueueSeq, tcpEStatsRecMaxAppRQueueSeq, tcpEStatsObsRecCurRwinRcvd, tcpEStatsObsRecMaxRwinRcvd, tcpEStatsObsRecMinRwinRcvd, tcpEStatsConnectIdId } STATUS current DESCRIPTION "The tcpEStats group is mandatory for all systems that implement this MIB Module." ::= { tcpEStatsGroups 1 } tcpEStatsControlGroup OBJECT-GROUP OBJECTS { tcpEStatsControlState, tcpEStatsControlSynOpts, tcpEStatsControlData, tcpEStatsControlSndCong, tcpEStatsControlPath, tcpEStatsControlSendBuff, tcpEStatsControlLocRec, tcpEStatsControlObsRec, tcpEStatsControlConnectId } STATUS current DESCRIPTION "The tcpEStatsControl group is mandatory for all systems that claim conformance to this MIB Module." ::= { tcpEStatsGroups 2 } END -- -- Copyright (C) The Internet Society (2000). All Rights Reserved. -- -- This document and translations of it may be copied and furnished to -- others, and derivative works that comment on or otherwise explain it -- or assist in its implementation may be prepared, copied, published -- and distributed, in whole or in part, without restriction of any -- kind, provided that the above copyright notice and this paragraph are -- included on all such copies and derivative works. However, this -- document itself may not be modified in any way, such as by removing -- the copyright notice or references to the Internet Society or other -- Internet organizations, except as needed for the purpose of develop- -- ing Internet standards in which case the procedures for copyrights -- defined in the Internet Standards process must be followed, or as -- required to translate it into languages other than English. -- -- The limited permissions granted above are perpetual and will not be -- revoked by the Internet Society or its successors or assigns. -- -- This document and the information contained herein is provided on an -- "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING -- TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING -- BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION -- HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MER- -- CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.