-- extracted from draft-ietf-tsvwg-tcp-mib-extension-00.txt -- at Fri May 14 06:20:54 2004 TCP-ESTATS-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, Counter32, Integer32, Gauge32, OBJECT-TYPE, Counter64, experimental, NOTIFICATION-TYPE FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-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, tcpEStatsConnectionWinScaleRcvd Integer32, tcpEStatsConnectionWinScaleSent 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 "Non-zero if SACK has been negotiated ON by both ends of the connection. Zero otherwise." ::= { tcpEStatsConnectionEntry 2 } tcpEStatsConnectionTimeStamps OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "Non-zero if Timestamps have been negotiated ON by both ends of the connection in the SYN. Zero otherwise." ::= { tcpEStatsConnectionEntry 3 } tcpEStatsConnectionECN OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "Non-zero if ECN has been negotiated ON." ::= { tcpEStatsConnectionEntry 4 } tcpEStatsConnectionNagle OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "Non-zero if the Nagle algorithm is being used by the Local Host on this connection. Zero otherwise." ::= { tcpEStatsConnectionEntry 5 } tcpEStatsConnectionWinScaleRcvd OBJECT-TYPE SYNTAX Integer32 (-1..14) MAX-ACCESS read-only STATUS current DESCRIPTION "The window scale value used by the Local Host in calculating incoming window sizes on this connection. Must be initialized to be < 0; Winshift will be considered to be in effect only if WinScaleSent and WinScaleRcvd are both >= 0." ::= { tcpEStatsConnectionEntry 6 } tcpEStatsConnectionWinScaleSent OBJECT-TYPE SYNTAX Integer32 (-1..14) MAX-ACCESS read-only STATUS current DESCRIPTION "The window scale value used by the Local Host in calculating the advertised window on this connection. Must be initialized to be < 0; Winshift will be considered to be in effect only if WinScaleSent and WinScaleRcvd are both >= 0." ::= { 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 { tcpEStatsSynOptsMSSSent Gauge32, tcpEStatsSynOptsMSSRcvd Gauge32, tcpEStatsSynOptsSACKSent TruthValue, tcpEStatsSynOptsSACKRcvd TruthValue, tcpEStatsSynOptsTimeStampSent TruthValue, tcpEStatsSynOptsTimeStampRcvd TruthValue, tcpEStatsSynOptsActiveOpen TruthValue } tcpEStatsSynOptsMSSSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value sent in an MSS option, or zero if none" ::= { tcpEStatsSynOptsEntry 1 } tcpEStatsSynOptsMSSRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value received in an MSS option, or zero if none" ::= { tcpEStatsSynOptsEntry 2 } tcpEStatsSynOptsSACKSent OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True if SACKok was sent in SYN or SYN-ACK." ::= { tcpEStatsSynOptsEntry 3 } tcpEStatsSynOptsSACKRcvd OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True if SACKok was found in SYN or SYN-ACK." ::= { tcpEStatsSynOptsEntry 4 } tcpEStatsSynOptsTimeStampSent OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True if Timestamp was sent in SYN or SYN-ACK." ::= { tcpEStatsSynOptsEntry 5 } tcpEStatsSynOptsTimeStampRcvd OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True if Timestamp was found in SYN or SYN-ACK." ::= { tcpEStatsSynOptsEntry 6 } tcpEStatsSynOptsActiveOpen OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-only STATUS current DESCRIPTION "True if local host was the one that sent the SYN." ::= { tcpEStatsSynOptsEntry 7 } -- -- 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, tcpEStatsDataAckPktsOut Counter32, tcpEStatsDataDataBytesOut Counter64, tcpEStatsDataPktsIn Counter32, tcpEStatsDataDataPktsIn Counter32, tcpEStatsDataAckPktsIn Counter32, tcpEStatsDataDataBytesIn Counter64, tcpEStatsDataSndUna Counter32, tcpEStatsDataSndNxt Integer32, tcpEStatsDataSndMax Counter32, tcpEStatsDataThruBytesSent Counter64, tcpEStatsDataSndInitial Counter32, tcpEStatsDataSendWraps Counter32, tcpEStatsDataRcvNxt Counter32, tcpEStatsDataThruBytesReceived Counter64, tcpEStatsDataRecInitial Counter32, tcpEStatsDataRecWraps Counter32, tcpEStatsDataCurTime Counter32, tcpEStatsDataStartTime Counter32 } tcpEStatsDataPktsOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of packets that have been sent on this connection by the Local Host." ::= { tcpEStatsDataEntry 1 } tcpEStatsDataDataPktsOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of data packets (with len > 0) that have been sent on this connection by the Local Host." ::= { tcpEStatsDataEntry 2 } tcpEStatsDataAckPktsOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of pure ack packets that have been sent on this connection by the Local Host." ::= { tcpEStatsDataEntry 3 } tcpEStatsDataDataBytesOut OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of data that have been sent on this connection by the Local Host, not including retransmitted packets." ::= { tcpEStatsDataEntry 4 } tcpEStatsDataPktsIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of packets that have been received on this connection by the Local Host." ::= { tcpEStatsDataEntry 5 } tcpEStatsDataDataPktsIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of data packets (with len > 0) that have been received on this connection by the Local Host." ::= { tcpEStatsDataEntry 6 } tcpEStatsDataAckPktsIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of valid pure ack packets that have been received on this connection by the Local Host." ::= { tcpEStatsDataEntry 7 } tcpEStatsDataDataBytesIn OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of non-duplicate data that have been received on this connection by the Local Host." ::= { 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 "Next Sequence Number to be Sent. Note that many TCP implementations retransmit lost data by pulling SndNxt back to the lost data." ::= { tcpEStatsDataEntry 10 } tcpEStatsDataSndMax OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This is equal to snd_next except when doing Tahoe style recovery." ::= { tcpEStatsDataEntry 11 } tcpEStatsDataThruBytesSent OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "Total throughput bytes delivered and acknowledged by the remote receiver as indicated by the 64 bit sum of changes in snd_una." ::= { tcpEStatsDataEntry 12 } tcpEStatsDataSndInitial OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Initial SYN 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 "Next sequence number expected on an incoming segment, and is the left or lower edge of the receive window." ::= { tcpEStatsDataEntry 15 } tcpEStatsDataThruBytesReceived OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "Total throughput bytes received and acknowledged to the remote sender as indicated by the 64 bit sum of changes in rcv_nxt." ::= { tcpEStatsDataEntry 16 } tcpEStatsDataRecInitial OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Initial SYN sequence number." ::= { tcpEStatsDataEntry 17 } tcpEStatsDataRecWraps OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "This is the number of times rcv_max 'passes' ISS." ::= { tcpEStatsDataEntry 18 } tcpEStatsDataCurTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Current Time." ::= { tcpEStatsDataEntry 19 } tcpEStatsDataStartTime OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Time of the start of the connection." ::= { tcpEStatsDataEntry 20 } -- -- 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 { tcpEStatsSndCongSndLimTransSnd Counter32, tcpEStatsSndCongSndLimTimeSnd Counter32, tcpEStatsSndCongSndLimBytesSnd Counter64, tcpEStatsSndCongSndLimTransCwnd Counter32, tcpEStatsSndCongSndLimTimeCwnd Counter32, tcpEStatsSndCongSndLimBytesCwnd Counter64, tcpEStatsSndCongSndLimTransRwin Counter32, tcpEStatsSndCongSndLimTimeRwin Counter32, tcpEStatsSndCongSndLimBytesRwin Counter64, tcpEStatsSndCongSlowStart Counter32, tcpEStatsSndCongCongAvoid Counter32, tcpEStatsSndCongCongSignals Counter32, tcpEStatsSndCongOtherReductions Counter32, tcpEStatsSndCongCongOverCount Counter32, tcpEStatsSndCongCurCwnd Gauge32, tcpEStatsSndCongSumCwndAtCong Counter32, tcpEStatsSndCongMaxCwnd Gauge32, tcpEStatsSndCongCurSsthresh Gauge32, tcpEStatsSndCongMaxSsthresh Gauge32, tcpEStatsSndCongMinSsthresh Gauge32 } tcpEStatsSndCongSndLimTransSnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into the 'Sender Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops because there no more data in sender's buffer." ::= { tcpEStatsSndCongEntry 1 } tcpEStatsSndCongSndLimTimeSnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in msecs) spent in the 'Sender Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops because there is no more data in sender's buffer." ::= { tcpEStatsSndCongEntry 2 } tcpEStatsSndCongSndLimBytesSnd OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative bytes sent while in the 'Sender Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops because there is no more data in sender's buffer." ::= { tcpEStatsSndCongEntry 3 } tcpEStatsSndCongSndLimTransCwnd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into the 'Congestion Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops due to congestion." ::= { 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, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops due to congestion." ::= { tcpEStatsSndCongEntry 5 } tcpEStatsSndCongSndLimBytesCwnd OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative bytes sent while in the 'Congestion Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops due to congestion." ::= { tcpEStatsSndCongEntry 6 } tcpEStatsSndCongSndLimTransRwin OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into the 'Receiver Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops due to Receiver not being able to receive data." ::= { tcpEStatsSndCongEntry 7 } tcpEStatsSndCongSndLimTimeRwin OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in msecs) spent in the 'Receiver Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops due to Receiver not being able to receive data." ::= { tcpEStatsSndCongEntry 8 } tcpEStatsSndCongSndLimBytesRwin OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative bytes sent while in the 'Receiver Limited' state, as determined by the Local Host, when the Local Host is a sender. This state is entered whenever TCP transmission stops due to Receiver not being able to receive data." ::= { tcpEStatsSndCongEntry 9 } tcpEStatsSndCongSlowStart OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Slow Start Window Opens." ::= { tcpEStatsSndCongEntry 10 } tcpEStatsSndCongCongAvoid OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Congestion Avoidance Window Opens." ::= { 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. Congestion events which are backed out or suppressed due to overlap with other events (e.g. Fast Retransmit or ECN followed by a timeout) SHOULD NOT be included. Note that retransmission timeouts reduce the window implicitly by updating ssthresh and a subsequent slowstart." ::= { tcpEStatsSndCongEntry 12 } tcpEStatsSndCongOtherReductions OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of congestion window reductions made by the Local Host as the result of anything other than AIMD congestion algorithms. All window reductions MUST be counted as either CongestionSignals or OtherReductions. Examples of non-multiplicative window reductions include slowstart restart and experimental algorithms such as Vegas [VEGAS] CAM." ::= { tcpEStatsSndCongEntry 13 } tcpEStatsSndCongCongOverCount OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of events counted in CongestionSignals, which were backed out after it is infeasible to backout related variables such as SumCwndAtCong." ::= { tcpEStatsSndCongEntry 14 } tcpEStatsSndCongCurCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The Local Host's current value of snd_cwnd on this connection, in bytes." ::= { tcpEStatsSndCongEntry 15 } tcpEStatsSndCongSumCwndAtCong OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the Local Host's values of snd_cwnd captured each time recovery is entered, in bytes. This MUST be updated with CongestionSignals such that the ratio is the average window at congestion signal." ::= { tcpEStatsSndCongEntry 16 } tcpEStatsSndCongMaxCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The largest value attained by the Local Host's snd_cwnd on this connection, in bytes." ::= { tcpEStatsSndCongEntry 17 } tcpEStatsSndCongCurSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The Local Host's current value of snd_ssthresh on this connection, in bytes." ::= { tcpEStatsSndCongEntry 18 } tcpEStatsSndCongMaxSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The largest non-initial value attained by the Local Host's snd_ssthresh on this connection, in bytes." ::= { tcpEStatsSndCongEntry 19 } tcpEStatsSndCongMinSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The smallest value attained by the Local Host's snd_ssthresh on this connection, in bytes." ::= { 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, tcpEStatsPathPreCongSumRTT Counter32, tcpEStatsPathPreCongCountRTT Counter32, tcpEStatsPathPostCongSumRTT Counter32, tcpEStatsPathPostCongCountRTT Counter32, tcpEStatsPathECNsignals Counter32, tcpEStatsPathECERcvd Counter32, tcpEStatsPathSendStall Counter32, tcpEStatsPathQuenchRcvd Counter32, tcpEStatsPathRetranThresh Gauge32, tcpEStatsPathNonRecovDA Counter32, tcpEStatsPathAckAfterFR Counter32, tcpEStatsPathDSACKDups Counter32, tcpEStatsPathSampleRTT Gauge32, tcpEStatsPathSmoothedRTT 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 when Local Host is the sender." ::= { tcpEStatsPathEntry 1 } tcpEStatsPathTimeouts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of timeouts experienced by the connection, when the Local Host is the sender and the RTO multiplier is 1." ::= { tcpEStatsPathEntry 2 } tcpEStatsPathSubsequentTimeouts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of timeouts experienced by the connection, when the Local Host is the sender and the RTO multiplier is greater than one." ::= { tcpEStatsPathEntry 3 } tcpEStatsPathCurTimeoutCount OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "Current number of times that RTO has been increased due to repeated timeouts. The timeout multiplier is typically 2^CurrTimeoutCount." ::= { tcpEStatsPathEntry 4 } tcpEStatsPathAbruptTimeouts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Total number of timeouts that occurred without any preceding duplicate acknowledgments or other hints of congestion." ::= { tcpEStatsPathEntry 5 } tcpEStatsPathPktsRetrans OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of pkts retransmitted on the connection by the Local Host." ::= { tcpEStatsPathEntry 6 } tcpEStatsPathBytesRetrans OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes retransmitted on the connection by the Local Host." ::= { tcpEStatsPathEntry 7 } tcpEStatsPathDupAcksIn OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate ACKs received on the connection by the Local Host." ::= { tcpEStatsPathEntry 8 } tcpEStatsPathSACKsRcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of SACK options on the connection, received by the Local Host, that represent new data arriving at the Remote Host." ::= { tcpEStatsPathEntry 9 } tcpEStatsPathSACKBlocksRcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of SACK blocks on the connection, received by the Local Host, that represent new data arriving at the Remote Host." ::= { tcpEStatsPathEntry 10 } tcpEStatsPathPreCongSumRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Sum of the RTT as measured just before congestion." ::= { tcpEStatsPathEntry 11 } tcpEStatsPathPreCongCountRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the RTT as measured just before congestion." ::= { tcpEStatsPathEntry 12 } tcpEStatsPathPostCongSumRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Sum of the RTT as measured just after congestion." ::= { tcpEStatsPathEntry 13 } tcpEStatsPathPostCongCountRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the RTT as measured 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 a congestion signals." ::= { tcpEStatsPathEntry 18 } tcpEStatsPathRetranThresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "Duplicate ACKs needed to trigger FR." ::= { tcpEStatsPathEntry 19 } tcpEStatsPathNonRecovDA OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Duplicate acks (or SACKS) that did not trigger fastretransmit because they were withdrawn prior to reaching RetranThresh." ::= { tcpEStatsPathEntry 20 } tcpEStatsPathAckAfterFR OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "ACKs following FR, but not due to FR (way out-of-order). @@@@@ This is intended to instrument premature fast retransmits. It may be as simple as counting partial acks that are not followed by more duplicate acknowledgements. This may also instrument the Eifel algorithm." ::= { tcpEStatsPathEntry 21 } tcpEStatsPathDSACKDups OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate segments by the Remote Host using DSACKs." ::= { tcpEStatsPathEntry 22 } tcpEStatsPathSampleRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The most recent round trip time sample in milliseconds for this connection, as seen by the Local Host." ::= { tcpEStatsPathEntry 23 } tcpEStatsPathSmoothedRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The smoothed round trip time in milliseconds for this connection, as seen by the Local Host." ::= { tcpEStatsPathEntry 24 } tcpEStatsPathMaxRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum round trip time sample seen on this connection by the Local Host, in milliseconds." ::= { tcpEStatsPathEntry 25 } tcpEStatsPathMinRTT OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The smallest round trip time sample seen on this connection by the Local Host, in milliseconds." ::= { tcpEStatsPathEntry 26 } tcpEStatsPathSumRTT OBJECT-TYPE SYNTAX Counter64 MAX-ACCESS read-only STATUS current DESCRIPTION "Cumulative round trip times seen on this connection by the Local Host, in milliseconds." ::= { tcpEStatsPathEntry 27 } tcpEStatsPathCountRTT OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Count of RTT samples included in SumRTT." ::= { tcpEStatsPathEntry 28 } tcpEStatsPathCurRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current value of the retransmit timeout limit (in milliseconds, not including the backoff timer) for this connection, as kept by the Local Host." ::= { tcpEStatsPathEntry 29 } tcpEStatsPathMaxRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum value of the retransmit timeout limit (in milliseconds, not including the backoff timer) for this connection, as seen by the Local Host." ::= { tcpEStatsPathEntry 30 } tcpEStatsPathMinRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The smallest value of the retransmit timeout limit (in milliseconds, not including the backoff timer) for this connection, as seen by the Local Host." ::= { tcpEStatsPathEntry 31 } tcpEStatsPathCurMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current 'maximum segment size' in bytes used by the Local Host for this connection." ::= { tcpEStatsPathEntry 32 } tcpEStatsPathMaxMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum value of the 'maximum segment size' in bytes used by the Local Host for this connection." ::= { tcpEStatsPathEntry 33 } tcpEStatsPathMinMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The smallest value of the 'maximum segment size' in bytes used by the Local Host for this connection." ::= { tcpEStatsPathEntry 34 } -- -- 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 { tcpEStatsSendBuffSndBuf Gauge32, tcpEStatsSendBuffCurRetranQueue Gauge32, tcpEStatsSendBuffMaxRetranQueue Gauge32, tcpEStatsSendBuffCurAppWQueue Gauge32, tcpEStatsSendBuffMaxAppWQueue Gauge32, tcpEStatsSendBuffSTuneMode INTEGER, tcpEStatsSendBuffSndbufSet Gauge32, tcpEStatsSendBuffSAppBuf Gauge32, tcpEStatsSendBuffSMaxWinBuf Gauge32, tcpEStatsSendBuffSXtra Gauge32, tcpEStatsSendBuffSTuneErr TruthValue } tcpEStatsSendBuffSndBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current total amount of sender buffer memory available to the connection." ::= { tcpEStatsSendBuffEntry 1 } tcpEStatsSendBuffCurRetranQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current amount of memory used for the retransmit queue." ::= { tcpEStatsSendBuffEntry 2 } tcpEStatsSendBuffMaxRetranQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum amount of memory used for the retransmit queue." ::= { tcpEStatsSendBuffEntry 3 } tcpEStatsSendBuffCurAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current amount of memory used to hold data that has been written by the application, but has yet to be transmitted on the network for the first time." ::= { tcpEStatsSendBuffEntry 4 } tcpEStatsSendBuffMaxAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum amount of memory used to hold data that has been written by the application, but has yet to be transmitted on the network for the first time." ::= { tcpEStatsSendBuffEntry 5 } tcpEStatsSendBuffSTuneMode OBJECT-TYPE SYNTAX INTEGER { sndTModeDEFAULT(0), sndTModeSETSOCKOPT(1), sndTModeFIXED(2), sndTModeAUTO(3), sndTModeEXP1(4), sndTModeEXP2(5) } MAX-ACCESS read-write STATUS current DESCRIPTION "The mode used for the sender-side TCP tuning by the Local Host." ::= { tcpEStatsSendBuffEntry 6 } tcpEStatsSendBuffSndbufSet OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "A read/write gage to manually set the current buffer size, when STuneMode is sndTModeFIXED. Reading SndbufSet always reports the most recent write to SndbufSet, even if STuneMode is not sndTModeFIXED. Note that when entering manual (aka fixed) tuning modes SndbufSet should be updated before STuneMode." ::= { tcpEStatsSendBuffEntry 7 } tcpEStatsSendBuffSAppBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "Advise to the auto-tuning algorithm in regards to the amount of buffer used to decouple the application from the TCP end-point. e.g. for the sender, limits (high, low or soft reservation) on the data queued before it is first transmitted." ::= { tcpEStatsSendBuffEntry 8 } tcpEStatsSendBuffSMaxWinBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "Advise to the auto-tuning algorithm in regards to the amount of buffer be used to support TCP retransmissions. e.g. limits on the TCP retransmit buffer. Its precise definition is tuning mode specific." ::= { tcpEStatsSendBuffEntry 9 } tcpEStatsSendBuffSXtra OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "Additional mode specific advise to the auto-tuning algorithm." ::= { tcpEStatsSendBuffEntry 10 } tcpEStatsSendBuffSTuneErr OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "True indicates an tuning error. Error indications must be explicitly cleared." ::= { tcpEStatsSendBuffEntry 11 } -- -- 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, tcpEStatsRecOutOfWindowDiscards Counter32, tcpEStatsRecOutOfWindowReason INTEGER, tcpEStatsRecDupAckEpisodes Counter32, tcpEStatsRecDupAcksOut Counter32, tcpEStatsRecCERcvd Counter32, tcpEStatsRecECNSent Counter32, tcpEStatsRecECNNonceRcvd Counter32, tcpEStatsRecRcvBuf Gauge32, tcpEStatsRecCurReasmQueue Gauge32, tcpEStatsRecMaxReasmQueue Gauge32, tcpEStatsRecCurAppRQueue Gauge32, tcpEStatsRecMaxAppRQueue Gauge32, tcpEStatsRecRTuneMode INTEGER, tcpEStatsRecRcvbufSet Gauge32, tcpEStatsRecRAppBuf Gauge32, tcpEStatsRecRMaxWinBuf Gauge32, tcpEStatsRecRXtra Gauge32, tcpEStatsRecRTuneErr TruthValue } tcpEStatsRecCurRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current receiver window, in bytes, advertised by the Local Host for this connection." ::= { tcpEStatsRecEntry 1 } tcpEStatsRecMaxRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum receiver window, in bytes, ever advertised by the Local Host for this connection." ::= { tcpEStatsRecEntry 2 } tcpEStatsRecMinRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum receiver window, in bytes, ever advertised by the Local Host for this connection." ::= { tcpEStatsRecEntry 3 } tcpEStatsRecOutOfWindowDiscards OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Packets discarded because they fail a window test, including data, ack number or PAWS." ::= { tcpEStatsRecEntry 4 } tcpEStatsRecOutOfWindowReason OBJECT-TYPE SYNTAX INTEGER { belowDataWindow(1), aboveDataWindow(2), belowAckWindow(3), aboveAckWindow(4), belowTSWindow(5), aboveTSWindow(6) } MAX-ACCESS read-only STATUS current DESCRIPTION "Identifies the window test that most recently failed" ::= { tcpEStatsRecEntry 5 } tcpEStatsRecDupAckEpisodes OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of transitions into recovery states (requiring the transmission of duplicate acknowledgements)" ::= { tcpEStatsRecEntry 6 } tcpEStatsRecDupAcksOut OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate ACKs sent on the connection by the Local Host." ::= { tcpEStatsRecEntry 7 } tcpEStatsRecCERcvd OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Received segments with Congestion Experienced bits." ::= { tcpEStatsRecEntry 8 } tcpEStatsRecECNSent OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of times CE bits have set ECN." ::= { tcpEStatsRecEntry 9 } 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 1 bit nonce sum. @@@@ not yet standards track" ::= { tcpEStatsRecEntry 10 } tcpEStatsRecRcvBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current total amount of receiver buffer memory available to the connection." ::= { tcpEStatsRecEntry 11 } tcpEStatsRecCurReasmQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current amount of memory used for the reassembly queue." ::= { tcpEStatsRecEntry 12 } tcpEStatsRecMaxReasmQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum amount of memory used for the reassembly queue." ::= { tcpEStatsRecEntry 13 } tcpEStatsRecCurAppRQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current amount of memory used to hold data that has been acknowledged to the sender but not delivered to the application." ::= { tcpEStatsRecEntry 14 } tcpEStatsRecMaxAppRQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum amount of memory used to hold data that has been acknowledged to the sender but not delivered to the application." ::= { tcpEStatsRecEntry 15 } tcpEStatsRecRTuneMode OBJECT-TYPE SYNTAX INTEGER { recTModeDEFAULT(0), recTModeSETSOCKOPT(1), recTModeFIXED(2), recTModeAUTO(3), recTModeEXP1(4), recTModeEXP2(5) } MAX-ACCESS read-write STATUS current DESCRIPTION "The mode used for the receiver-side TCP tuning by the Local Host." ::= { tcpEStatsRecEntry 16 } tcpEStatsRecRcvbufSet OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "A read/write gauge to manually set the current buffer size, when RTuneMode is recTModeFIXED. Reading RcvbufSet always reports the most recent write to RcvbufSet, even if RTuneMode is not recTModeFIXED. Note that when entering manual (aka fixed) tuning modes RcvbufSet should be updated before RtuneMode." ::= { tcpEStatsRecEntry 17 } tcpEStatsRecRAppBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "Advise to the auto-tuning algorithm in regards to the amount of buffer used to decouple the application from the TCP end-point. e.g. for the receiver, limits on the amount of buffer space available for data that has been acknowledged but not read by the application." ::= { tcpEStatsRecEntry 18 } tcpEStatsRecRMaxWinBuf OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "Advise to the auto-tuning algorithm in regards to the amount of buffer be used to support TCP retransmissions. e.g. limits on the TCP reassembly buffer. Its precise definition is tuning mode specific." ::= { tcpEStatsRecEntry 19 } tcpEStatsRecRXtra OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "Additional mode specific advise to the auto-tuning algorithm." ::= { tcpEStatsRecEntry 20 } tcpEStatsRecRTuneErr OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-write STATUS current DESCRIPTION "True indicates an tuning error. Error indications must be explicitly cleared." ::= { tcpEStatsRecEntry 21 } -- -- 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 current receiver window, in bytes, advertised by the Remote Host for this connection." ::= { tcpEStatsObsRecEntry 1 } tcpEStatsObsRecMaxRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum receiver window, in bytes, ever advertised by the Remote Host for this connection." ::= { tcpEStatsObsRecEntry 2 } tcpEStatsObsRecMinRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum receiver window, in bytes, ever advertised by the Remote Host for this connection." ::= { tcpEStatsObsRecEntry 3 } -- -- TCP Connection ID Table -- There is overlap with the new RFC2012 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 } -- TCP Extended Statistics Notifications Group tcpEStatsSTuneErrNotification NOTIFICATION-TYPE OBJECTS { tcpEStatsSendBuffSTuneErr } STATUS current DESCRIPTION "Sender tuning error" ::= { tcpEStatsNotifications 1 } tcpEStatsRTuneErrNotification NOTIFICATION-TYPE OBJECTS { tcpEStatsRecRTuneErr } STATUS current DESCRIPTION "Receiver tuning error" ::= { tcpEStatsNotifications 2 } -- -- 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, tcpEStatsConnectionWinScaleRcvd, tcpEStatsConnectionWinScaleSent, tcpEStatsSynOptsMSSSent, tcpEStatsSynOptsMSSRcvd, tcpEStatsSynOptsSACKSent, tcpEStatsSynOptsSACKRcvd, tcpEStatsSynOptsTimeStampSent, tcpEStatsSynOptsTimeStampRcvd, tcpEStatsSynOptsActiveOpen, tcpEStatsDataPktsOut, tcpEStatsDataDataPktsOut, tcpEStatsDataAckPktsOut, tcpEStatsDataDataBytesOut, tcpEStatsDataPktsIn, tcpEStatsDataDataPktsIn, tcpEStatsDataAckPktsIn, tcpEStatsDataDataBytesIn, tcpEStatsDataSndUna, tcpEStatsDataSndNxt, tcpEStatsDataSndMax, tcpEStatsDataThruBytesSent, tcpEStatsDataSndInitial, tcpEStatsDataSendWraps, tcpEStatsDataRcvNxt, tcpEStatsDataThruBytesReceived, tcpEStatsDataRecInitial, tcpEStatsDataRecWraps, tcpEStatsDataCurTime, tcpEStatsDataStartTime, tcpEStatsSndCongSndLimTransSnd, tcpEStatsSndCongSndLimTimeSnd, tcpEStatsSndCongSndLimBytesSnd, tcpEStatsSndCongSndLimTransCwnd, tcpEStatsSndCongSndLimTimeCwnd, tcpEStatsSndCongSndLimBytesCwnd, tcpEStatsSndCongSndLimTransRwin, tcpEStatsSndCongSndLimTimeRwin, tcpEStatsSndCongSndLimBytesRwin, tcpEStatsSndCongSlowStart, tcpEStatsSndCongCongAvoid, tcpEStatsSndCongCongSignals, tcpEStatsSndCongOtherReductions, tcpEStatsSndCongCongOverCount, tcpEStatsSndCongCurCwnd, tcpEStatsSndCongSumCwndAtCong, tcpEStatsSndCongMaxCwnd, tcpEStatsSndCongCurSsthresh, tcpEStatsSndCongMaxSsthresh, tcpEStatsSndCongMinSsthresh, tcpEStatsPathFastRetran, tcpEStatsPathTimeouts, tcpEStatsPathSubsequentTimeouts, tcpEStatsPathCurTimeoutCount, tcpEStatsPathAbruptTimeouts, tcpEStatsPathPktsRetrans, tcpEStatsPathBytesRetrans, tcpEStatsPathDupAcksIn, tcpEStatsPathSACKsRcvd, tcpEStatsPathSACKBlocksRcvd, tcpEStatsPathPreCongSumRTT, tcpEStatsPathPreCongCountRTT, tcpEStatsPathPostCongSumRTT, tcpEStatsPathPostCongCountRTT, tcpEStatsPathECNsignals, tcpEStatsPathECERcvd, tcpEStatsPathSendStall, tcpEStatsPathQuenchRcvd, tcpEStatsPathRetranThresh, tcpEStatsPathNonRecovDA, tcpEStatsPathAckAfterFR, tcpEStatsPathDSACKDups, tcpEStatsPathSampleRTT, tcpEStatsPathSmoothedRTT, tcpEStatsPathMaxRTT, tcpEStatsPathMinRTT, tcpEStatsPathSumRTT, tcpEStatsPathCountRTT, tcpEStatsPathCurRTO, tcpEStatsPathMaxRTO, tcpEStatsPathMinRTO, tcpEStatsPathCurMSS, tcpEStatsPathMaxMSS, tcpEStatsPathMinMSS, tcpEStatsSendBuffSndBuf, tcpEStatsSendBuffCurRetranQueue, tcpEStatsSendBuffMaxRetranQueue, tcpEStatsSendBuffCurAppWQueue, tcpEStatsSendBuffMaxAppWQueue, tcpEStatsSendBuffSTuneMode, tcpEStatsSendBuffSndbufSet, tcpEStatsSendBuffSAppBuf, tcpEStatsSendBuffSMaxWinBuf, tcpEStatsSendBuffSXtra, tcpEStatsSendBuffSTuneErr, tcpEStatsRecCurRwinSent, tcpEStatsRecMaxRwinSent, tcpEStatsRecMinRwinSent, tcpEStatsRecOutOfWindowDiscards, tcpEStatsRecOutOfWindowReason, tcpEStatsRecDupAckEpisodes, tcpEStatsRecDupAcksOut, tcpEStatsRecCERcvd, tcpEStatsRecECNSent, tcpEStatsRecECNNonceRcvd, tcpEStatsRecRcvBuf, tcpEStatsRecCurReasmQueue, tcpEStatsRecMaxReasmQueue, tcpEStatsRecCurAppRQueue, tcpEStatsRecMaxAppRQueue, tcpEStatsRecRTuneMode, tcpEStatsRecRcvbufSet, tcpEStatsRecRAppBuf, tcpEStatsRecRMaxWinBuf, tcpEStatsRecRXtra, tcpEStatsRecRTuneErr, 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 } tcpEStatsNotificationsGroup NOTIFICATION-GROUP NOTIFICATIONS { tcpEStatsSTuneErrNotification, tcpEStatsRTuneErrNotification } STATUS current DESCRIPTION "Notifications sent by a TCP extended statistics agent." ::= { tcpEStatsGroups 3 } 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, pub- -- lished and distributed, in whole or in part, without restriction of -- any kind, provided that the above copyright notice and this para- -- graph are included on all such copies and derivative works. -- as by removing the copyright notice or references to the Internet -- Society or other Internet organizations, except as needed for the -- purpose of developing Internet standards in which case the proce- -- dures 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 ENGI- -- NEERING 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 WAR- -- RANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. -- -- TTaabbllee ooff CCoonntteennttss -- --