-- extracted from draft-ietf-tsvwg-tcp-mib-extension-04.txt -- at Tue Oct 28 06:14:44 2003 TCP-ESTATS-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, Counter32, Integer32, Unsigned32, Gauge32, OBJECT-TYPE, experimental, NOTIFICATION-TYPE FROM SNMPv2-SMI MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP FROM SNMPv2-CONF ZeroBasedCounter32 FROM RMON2-MIB -- [RFC2021] ZeroBasedCounter64 FROM HCNUM-TC -- [RFC2856] TEXTUAL-CONVENTION, DateAndTime, TruthValue, TimeStamp FROM SNMPv2-TC InetAddressType, InetAddress, InetPortNumber FROM INET-ADDRESS-MIB tcpListenerEntry FROM TCP-MIB; tcpEStatsMIB MODULE-IDENTITY LAST-UPDATED "200310270704Z" -- Oct 27, 2003 ORGANIZATION "IETF TSV Working Group" CONTACT-INFO "Matt Mathis John Heffner Raghu Reddy Web100 Project Pittsburgh Supercomputing Center 4400 Fifth Ave Pittsburgh, PA 15213 Email: mathis@psc.edu, jheffner@psc.edu, rreddy@psc.edu Rajiv Raghunarayan Cisco Systems Inc. San Jose, CA 95134 Phone: 408 853 9612 Email: raraghun@cisco.com Jon Saperia JDS Consulting, Inc. 174 Chapman Street Watertown, MA 02472 Phone: 617-744-1079 Email: saperia@jdscons.com " DESCRIPTION "Documentation of TCP performance instrumentation variables from the Web100 project. See www.web100.org" REVISION "200310270704Z" -- Oct 27, 2003 DESCRIPTION "Initial version, published as RFC xxxx." -- RFC Editor assigns RFC xxxx ::= { experimental 9999 } tcpEStatsNotifications OBJECT IDENTIFIER ::= { tcpEStatsMIB 0 } tcpEStatsMIBObjects OBJECT IDENTIFIER ::= { tcpEStatsMIB 1 } tcpEStatsConformance OBJECT IDENTIFIER ::= { tcpEStatsMIB 2 } tcpEStats OBJECT IDENTIFIER ::= { tcpEStatsMIBObjects 1 } tcpEStatsControl OBJECT IDENTIFIER ::= { tcpEStatsMIBObjects 2 } tcpEStatsScalar OBJECT IDENTIFIER ::= { tcpEStatsMIBObjects 3 } -- -- Textual Conventions -- TcpEStatsOperation ::= TEXTUAL-CONVENTION STATUS current DESCRIPTION "Indicates whether the table controlled by an object with this syntax is enabled and counting statistics or in a disabled state." SYNTAX INTEGER { enabled(1), disabled(2) } -- -- TCP Extended statistics scalars -- tcpEStatsListenerTableLastChange OBJECT-TYPE SYNTAX TimeStamp MAX-ACCESS read-only STATUS current DESCRIPTION "The value of sysUpTime at the time of the last creation or deletion of an entry in the tcpListenerTable. If the number of entries has been unchanged since the last re-initialization of the local network management subsystem, then this object contains a zero value." ::= { tcpEStatsScalar 3 } -- 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." DEFVAL { disabled } ::= { tcpEStatsControl 1 } tcpEStatsControlSynOpts OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP SYN Options table." DEFVAL { disabled } ::= { tcpEStatsControl 2 } tcpEStatsControlData OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Data Table." DEFVAL { disabled } ::= { tcpEStatsControl 3 } tcpEStatsControlSndCong OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Sender Table." DEFVAL { disabled } ::= { tcpEStatsControl 4 } tcpEStatsControlPath OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Path Table." DEFVAL { disabled } ::= { tcpEStatsControl 5 } tcpEStatsControlSendBuff OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Sender Buffer Table." DEFVAL { disabled } ::= { tcpEStatsControl 6 } tcpEStatsControlRec OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Local Receiver Table." DEFVAL { disabled } ::= { tcpEStatsControl 7 } tcpEStatsControlObsRec OBJECT-TYPE SYNTAX TcpEStatsOperation MAX-ACCESS read-write STATUS current DESCRIPTION "Controls the activation of the TCP Observed Receiver Window Table." DEFVAL { disabled } ::= { tcpEStatsControl 8 } -- -- Listener Table -- tcpEStatsListenerTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsListenerEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains information about TCP Listeners, in addition to the information maintained by the tcpListenerTable [RFC2012bis]." ::= { tcpEStats 10 } tcpEStatsListenerEntry OBJECT-TYPE SYNTAX TcpEStatsListenerEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry in the table contains information about a specific TCP Listener." AUGMENTS { tcpListenerEntry } ::= { tcpEStatsListenerTable 1 } TcpEStatsListenerEntry ::= SEQUENCE { tcpEStatsListenerTimeOuts Counter32, tcpEStatsListenerEstablished Counter32, tcpEStatsListenerStartTime TimeStamp } tcpEStatsListenerTimeOuts OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of connection attempts to this endpoint which have failed due to timeout of the three-way handshake, i.e. the corresponding connection state never moved from synReceived to established." ::= { tcpEStatsListenerEntry 1 } tcpEStatsListenerEstablished OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of connections which have been established to this endpoint." ::= { tcpEStatsListenerEntry 2 } tcpEStatsListenerStartTime OBJECT-TYPE SYNTAX TimeStamp MAX-ACCESS read-only STATUS current DESCRIPTION "The value of sysUpTime at the time this listener was established. If the current state was entered prior to the last re-initialization of the local network management subsystem, then this object contains a zero value." ::= { tcpEStatsListenerEntry 3 } -- -- TCP Connection ID Table -- -- There is overlap with the new RFC2012 TCP Connection table -- because 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 1 } tcpEStatsConnectIdEntry OBJECT-TYPE SYNTAX TcpEStatsConnectIdEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry in this table maps a TCP connection 4-tuple to a connection index." INDEX { tcpEStatsConnectLocalAddressType, tcpEStatsConnectLocalAddress, tcpEStatsConnectLocalPort, tcpEStatsConnectRemAddressType, tcpEStatsConnectRemAddress, tcpEStatsConnectRemPort } ::= { tcpEStatsConnectIdTable 1 } TcpEStatsConnectIdEntry ::= SEQUENCE { tcpEStatsConnectLocalAddressType InetAddressType, tcpEStatsConnectLocalAddress InetAddress, tcpEStatsConnectLocalPort InetPortNumber, tcpEStatsConnectRemAddressType InetAddressType, tcpEStatsConnectRemAddress InetAddress, tcpEStatsConnectRemPort InetPortNumber, tcpEStatsConnectIndex Unsigned32 } tcpEStatsConnectLocalAddressType OBJECT-TYPE SYNTAX InetAddressType MAX-ACCESS not-accessible STATUS current DESCRIPTION "The address type of tcpEStatsConnectLocalAddress. Only IPv4, IPv4z, IPv6 and IPv6z address types 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." ::= { 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, IPv4z, IPv6 and IPv6z address types are expected." ::= { 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 } tcpEStatsConnectIndex OBJECT-TYPE SYNTAX Unsigned32 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 } -- -- 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 2 } 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 { tcpEStatsConnectIndex } ::= { 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 3 } tcpEStatsSynOptsEntry OBJECT-TYPE SYNTAX TcpEStatsSynOptsEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Each entry in this table information on options present in the SYNs and SYN-ACKs." INDEX { tcpEStatsConnectIndex } ::= { 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, else false(2). 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. Table activation is controlled by tcpEStatsControlData." ::= { tcpEStats 4 } tcpEStatsDataEntry OBJECT-TYPE SYNTAX TcpEStatsDataEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection statistics for packets and data." INDEX { tcpEStatsConnectIndex } ::= { tcpEStatsDataTable 1 } TcpEStatsDataEntry ::= SEQUENCE { tcpEStatsDataPktsOut ZeroBasedCounter32, tcpEStatsDataDataPktsOut ZeroBasedCounter32, tcpEStatsDataDataBytesOut ZeroBasedCounter32, tcpEStatsDataHCDataBytesOut ZeroBasedCounter64, tcpEStatsDataPktsIn ZeroBasedCounter32, tcpEStatsDataDataPktsIn ZeroBasedCounter32, tcpEStatsDataDataBytesIn ZeroBasedCounter32, tcpEStatsDataHCDataBytesIn ZeroBasedCounter64, tcpEStatsDataSoftErrors ZeroBasedCounter32, tcpEStatsDataSoftErrorReason INTEGER, tcpEStatsDataIpTtl Integer32, tcpEStatsDataIpTos Integer32, tcpEStatsDataSndUna ZeroBasedCounter32, tcpEStatsDataSndNxt Integer32, tcpEStatsDataSndMax ZeroBasedCounter32, tcpEStatsDataThruBytesAcked ZeroBasedCounter32, tcpEStatsDataHCThruBytesAcked ZeroBasedCounter64, tcpEStatsDataSndInitial ZeroBasedCounter32, tcpEStatsDataRcvNxt ZeroBasedCounter32, tcpEStatsDataThruBytesReceived ZeroBasedCounter32, tcpEStatsDataHCThruBytesReceived ZeroBasedCounter64, tcpEStatsDataRecInitial ZeroBasedCounter32, tcpEStatsDataElapsedSecs ZeroBasedCounter32, tcpEStatsDataDurationMicroSecs ZeroBasedCounter32, tcpEStatsDataStartTimeStamp DateAndTime } tcpEStatsDataPktsOut OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of packets sent." ::= { tcpEStatsDataEntry 1 } tcpEStatsDataDataPktsOut OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets sent containing a positive length data segment." ::= { tcpEStatsDataEntry 2 } tcpEStatsDataDataBytesOut OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of data contained in transmitted segments, including retransmitted data." ::= { tcpEStatsDataEntry 3 } tcpEStatsDataHCDataBytesOut OBJECT-TYPE SYNTAX ZeroBasedCounter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes of data contained in transmitted segments, including retransmitted data, on systems that can transmit more than 10 million bits per second." ::= { tcpEStatsDataEntry 4 } tcpEStatsDataPktsIn OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of packets received." ::= { tcpEStatsDataEntry 5 } tcpEStatsDataDataPktsIn OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of packets received containing a positive length data segment." ::= { tcpEStatsDataEntry 6 } tcpEStatsDataDataBytesIn OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes contained in received data segments, including retransmitted data. Note that this does not include TCP headers." ::= { tcpEStatsDataEntry 7 } tcpEStatsDataHCDataBytesIn OBJECT-TYPE SYNTAX ZeroBasedCounter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes contained in received data segments, including retransmitted data, on systems that can receive more than 10 million bits per second. Note that this does not include TCP headers." ::= { tcpEStatsDataEntry 8 } tcpEStatsDataSoftErrors OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number packets that fail various consistency tests." ::= { tcpEStatsDataEntry 9 } 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 10 } tcpEStatsDataIpTtl OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the TTL field carried in the most recently received IP header." ::= { tcpEStatsDataEntry 11 } tcpEStatsDataIpTos OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of the Type Of Service byte carried in the most recently received IP header." ::= { tcpEStatsDataEntry 12 } tcpEStatsDataSndUna OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of SND.UNA, the oldest unacknowledged sequence number." ::= { tcpEStatsDataEntry 13 } 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 14 } tcpEStatsDataSndMax OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The farthest forward (right most) SND.NXT value. Note that this will be equal to snd_nxt except when snd_nxt is pulled back during a recovery." ::= { tcpEStatsDataEntry 15 } tcpEStatsDataThruBytesAcked OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes for which cumulative acknowledgments have been received. Note that this will be the sum of changes in snd_una, accounting for sequence wraps." ::= { tcpEStatsDataEntry 16 } tcpEStatsDataHCThruBytesAcked OBJECT-TYPE SYNTAX ZeroBasedCounter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes for which cumulative acknowledgments have been received, on systems that can receive more than 10 million bits per second. Note that this will be the sum of changes in snd_una, accounting for sequence wraps." ::= { tcpEStatsDataEntry 17 } tcpEStatsDataSndInitial OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Initial send sequence number." ::= { tcpEStatsDataEntry 18 } tcpEStatsDataRcvNxt OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 19 } tcpEStatsDataThruBytesReceived OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes for which cumulative acknowledgments have been sent. Note that this will be the sum of changes in rcv_nxt, accounting for sequence wraps." ::= { tcpEStatsDataEntry 20 } tcpEStatsDataHCThruBytesReceived OBJECT-TYPE SYNTAX ZeroBasedCounter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes for which cumulative acknowledgments have been sent, on systems that can transmit more than 10 million bits per second. Note that this will be the sum of changes in rcv_nxt, accounting for sequence wraps." ::= { tcpEStatsDataEntry 21 } tcpEStatsDataRecInitial OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Initial receive sequence number." ::= { tcpEStatsDataEntry 22 } tcpEStatsDataElapsedSecs OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The seconds part of the time elapsed between StartTime and the most recent protocol event (packet sent or received)." ::= { tcpEStatsDataEntry 23 } tcpEStatsDataDurationMicroSecs OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The micro-second part of time elapsed between StartTime to the most recent protocol event (packet sent or received). This may be updated in what ever time granularity is the system supports. @@ Make optional?" ::= { tcpEStatsDataEntry 24 } tcpEStatsDataStartTimeStamp OBJECT-TYPE SYNTAX DateAndTime MAX-ACCESS read-only STATUS current DESCRIPTION "Time of the start of the connection." ::= { tcpEStatsDataEntry 25 } -- -- 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 [MSMO97]. This in turn reveals the nature of the congestion. Table activation is controlled by tcpEStatsControlSndCong." ::= { tcpEStats 5 } tcpEStatsSndCongEntry OBJECT-TYPE SYNTAX TcpEStatsSndCongEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection sender information." INDEX { tcpEStatsConnectIndex } ::= { tcpEStatsSndCongTable 1 } TcpEStatsSndCongEntry ::= SEQUENCE { tcpEStatsSndCongSndLimTransRwin ZeroBasedCounter32, tcpEStatsSndCongSndLimTimeRwin ZeroBasedCounter32, tcpEStatsSndCongSndLimTransCwnd ZeroBasedCounter32, tcpEStatsSndCongSndLimTimeCwnd ZeroBasedCounter32, tcpEStatsSndCongSndLimTransSnd ZeroBasedCounter32, tcpEStatsSndCongSndLimTimeSnd ZeroBasedCounter32, tcpEStatsSndCongSlowStart ZeroBasedCounter32, tcpEStatsSndCongCongAvoid ZeroBasedCounter32, tcpEStatsSndCongCongSignals ZeroBasedCounter32, tcpEStatsSndCongOtherReductions ZeroBasedCounter32, tcpEStatsSndCongCongOverCount ZeroBasedCounter32, tcpEStatsSndCongCwndRestores ZeroBasedCounter32, tcpEStatsSndCongCurCwnd Gauge32, tcpEStatsSndCongMaxSsCwnd Gauge32, tcpEStatsSndCongMaxCaCwnd Gauge32, tcpEStatsSndCongLimCwnd Gauge32, tcpEStatsSndCongCurSsthresh Gauge32, tcpEStatsSndCongMaxSsthresh Gauge32, tcpEStatsSndCongMinSsthresh Gauge32 } tcpEStatsSndCongSndLimTransRwin OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in milliseconds) spent in the 'Receiver Limited' state. See SndLimTransRwin." ::= { tcpEStatsSndCongEntry 2 } tcpEStatsSndCongSndLimTransCwnd OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 3 } tcpEStatsSndCongSndLimTimeCwnd OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in milliseconds) spent in the 'Congestion Limited' state. See SndLimTransCwnd. When there is a retransmission timeout, it should be counted in SndLimTimeCwnd (and not the cumulative time for some other state.)" ::= { tcpEStatsSndCongEntry 4 } tcpEStatsSndCongSndLimTransSnd OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 5 } tcpEStatsSndCongSndLimTimeSnd OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The cumulative time (in milliseconds) spent in the 'Sender Limited' state. See SndLimTransSnd." ::= { tcpEStatsSndCongEntry 6 } tcpEStatsSndCongSlowStart OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 7 } tcpEStatsSndCongCongAvoid OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 8 } tcpEStatsSndCongCongSignals OBJECT-TYPE SYNTAX ZeroBasedCounter32 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, CongestionSignals should be incremented in association with the Fast Retransmit algorithm." ::= { tcpEStatsSndCongEntry 9 } tcpEStatsSndCongOtherReductions OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 10 } tcpEStatsSndCongCongOverCount OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 CongestionSignals and PreCongSumCwnd, etc." ::= { tcpEStatsSndCongEntry 11 } tcpEStatsSndCongCwndRestores OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times cwnd is restored from a prior saved value" ::= { tcpEStatsSndCongEntry 12 } tcpEStatsSndCongCurCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current congestion window, in bytes." ::= { tcpEStatsSndCongEntry 13 } tcpEStatsSndCongMaxSsCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum congestion window used during Slow Start, in bytes." ::= { tcpEStatsSndCongEntry 14 } tcpEStatsSndCongMaxCaCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum congestion window used during Congestion Avoidance, in bytes." ::= { tcpEStatsSndCongEntry 15 } tcpEStatsSndCongLimCwnd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum congestion window which may be used, in bytes." ::= { tcpEStatsSndCongEntry 16 } tcpEStatsSndCongCurSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current slow start threshold in bytes." ::= { tcpEStatsSndCongEntry 17 } tcpEStatsSndCongMaxSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum slow start threshold, excluding the initial value." ::= { tcpEStatsSndCongEntry 18 } tcpEStatsSndCongMinSsthresh OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum slow start threshold." ::= { tcpEStatsSndCongEntry 19 } -- -- TCP Path Table -- tcpEStatsPathTable OBJECT-TYPE SYNTAX SEQUENCE OF TcpEStatsPathEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Instruments that characterize the Internet path. These include dominant properties, such as packet loss, Round Trip Time (RTT), and Maximum Transmission Unit (MTU) as well as instruments of other path behaviors that might effect TCP performance, such as reordering, source quench, etc. Ideally these instruments would parallel other IP path metrics, such as the products of the IPPM working group." ::= { tcpEStats 6 } tcpEStatsPathEntry OBJECT-TYPE SYNTAX TcpEStatsPathEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Stats per connection." INDEX { tcpEStatsConnectIndex } ::= { tcpEStatsPathTable 1 } TcpEStatsPathEntry ::= SEQUENCE { tcpEStatsPathFastRetran ZeroBasedCounter32, tcpEStatsPathTimeouts ZeroBasedCounter32, tcpEStatsPathSubsequentTimeouts ZeroBasedCounter32, tcpEStatsPathCurTimeoutCount Gauge32, tcpEStatsPathAbruptTimeouts ZeroBasedCounter32, tcpEStatsPathPktsRetrans ZeroBasedCounter32, tcpEStatsPathBytesRetrans ZeroBasedCounter32, tcpEStatsPathDupAcksIn ZeroBasedCounter32, tcpEStatsPathSACKsRcvd ZeroBasedCounter32, tcpEStatsPathSACKBlocksRcvd ZeroBasedCounter32, tcpEStatsPathPreCongSumCwnd ZeroBasedCounter32, tcpEStatsPathPreCongSumRTT ZeroBasedCounter32, tcpEStatsPathPostCongSumRTT ZeroBasedCounter32, tcpEStatsPathPostCongCountRTT ZeroBasedCounter32, tcpEStatsPathECNsignals ZeroBasedCounter32, tcpEStatsPathECERcvd ZeroBasedCounter32, tcpEStatsPathSendStall ZeroBasedCounter32, tcpEStatsPathQuenchRcvd ZeroBasedCounter32, tcpEStatsPathRetranThresh Gauge32, tcpEStatsPathSndDupAckEpisodes Integer32, tcpEStatsPathSumBytesReordered Integer32, tcpEStatsPathNonRecovDA ZeroBasedCounter32, tcpEStatsPathAckAfterFR ZeroBasedCounter32, tcpEStatsPathDSACKDups ZeroBasedCounter32, tcpEStatsPathSampleRTT Gauge32, tcpEStatsPathSmoothedRTT Gauge32, tcpEStatsPathRTTVar Gauge32, tcpEStatsPathMaxRTT Gauge32, tcpEStatsPathMinRTT Gauge32, tcpEStatsPathSumRTT ZeroBasedCounter32, tcpEStatsPathHCSumRTT ZeroBasedCounter64, tcpEStatsPathCountRTT ZeroBasedCounter32, tcpEStatsPathCurRTO Gauge32, tcpEStatsPathMaxRTO Gauge32, tcpEStatsPathMinRTO Gauge32, tcpEStatsPathCurMSS Gauge32, tcpEStatsPathMaxMSS Gauge32, tcpEStatsPathMinMSS Gauge32 } tcpEStatsPathFastRetran OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of invocations of the Fast Retransmit algorithm. See RFC 2581." ::= { tcpEStatsPathEntry 1 } tcpEStatsPathTimeouts OBJECT-TYPE SYNTAX ZeroBasedCounter32 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. See RFC 2988." ::= { tcpEStatsPathEntry 2 } tcpEStatsPathSubsequentTimeouts OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of segments transmitted containing at least some retransmitted data." ::= { tcpEStatsPathEntry 6 } tcpEStatsPathBytesRetrans OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of bytes retransmitted." ::= { tcpEStatsPathEntry 7 } tcpEStatsPathDupAcksIn OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate ACKs received." ::= { tcpEStatsPathEntry 8 } tcpEStatsPathSACKsRcvd OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of SACK options received. See RFC 2018." ::= { tcpEStatsPathEntry 9 } tcpEStatsPathSACKBlocksRcvd OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of SACK blocks received (within SACK options)." ::= { tcpEStatsPathEntry 10 } tcpEStatsPathPreCongSumCwnd OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of the values of the congestion window, in bytes, 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Sum of the last sample of the RTT (SampledRTT) prior to 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Sum of the first RTT sample following a received congestion signal." ::= { tcpEStatsPathEntry 13 } tcpEStatsPathPostCongCountRTT OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of congestion signals received via the RFC3168 ECE bit." ::= { tcpEStatsPathEntry 16 } tcpEStatsPathSendStall OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 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 reordered 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 episode without a retransmission." ::= { tcpEStatsPathEntry 21 } tcpEStatsPathNonRecovDA OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of acknowledgments reporting out-of-order segments after the segments have already be retransmitted (For example as detected by the Eiffel algorithm)." ::= { tcpEStatsPathEntry 23 } tcpEStatsPathDSACKDups OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of all sampled round trip times, in milliseconds." ::= { tcpEStatsPathEntry 30 } tcpEStatsPathHCSumRTT OBJECT-TYPE SYNTAX ZeroBasedCounter64 MAX-ACCESS read-only STATUS current DESCRIPTION "The sum of all sampled round trip times, in milliseconds, on all systems that implement multiple concurrent RTT measurements." ::= { tcpEStatsPathEntry 31 } tcpEStatsPathCountRTT OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of round trip time samples included in SumRTT." ::= { tcpEStatsPathEntry 32 } 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 33 } tcpEStatsPathMaxRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum value of the retransmit timer RTO, in milliseconds, not scaled by the RTO backoff multiplier. See RFC 2988." ::= { tcpEStatsPathEntry 34 } tcpEStatsPathMinRTO OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum value of the retransmit timer RTO, in milliseconds, not scaled by the RTO backoff multiplier. See RFC 2988." ::= { tcpEStatsPathEntry 35 } tcpEStatsPathCurMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current maximum segment size (MSS), in bytes." ::= { tcpEStatsPathEntry 36 } tcpEStatsPathMaxMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum MSS, in bytes. See RFC 1191." ::= { tcpEStatsPathEntry 37 } tcpEStatsPathMinMSS OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum MSS, in bytes. See RFC 1191." ::= { tcpEStatsPathEntry 38 } -- -- 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. Table activation is controlled by tcpEStatsControlSendBuff." ::= { tcpEStats 7 } tcpEStatsSendBuffEntry OBJECT-TYPE SYNTAX TcpEStatsSendBuffEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection sender buffer information." INDEX { tcpEStatsConnectIndex } ::= { tcpEStatsSendBuffTable 1 } TcpEStatsSendBuffEntry ::= SEQUENCE { tcpEStatsSendBuffCurRetxQueue Gauge32, tcpEStatsSendBuffMaxRetxQueue Gauge32, tcpEStatsSendBuffCurAppWQueue Gauge32, tcpEStatsSendBuffMaxAppWQueue Gauge32 } tcpEStatsSendBuffCurRetxQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of bytes of data occupying the retransmit queue." ::= { tcpEStatsSendBuffEntry 1 } tcpEStatsSendBuffMaxRetxQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes of data occupying the retransmit queue." ::= { tcpEStatsSendBuffEntry 2 } tcpEStatsSendBuffCurAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of bytes of application data buffered by TCP, pending first transmission." ::= { tcpEStatsSendBuffEntry 3 } tcpEStatsSendBuffMaxAppWQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes of application data buffered by TCP, pending first transmission." ::= { tcpEStatsSendBuffEntry 4 } -- -- 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. Table activation is controlled by tcpEStatsControlRec." ::= { tcpEStats 8 } tcpEStatsRecEntry OBJECT-TYPE SYNTAX TcpEStatsRecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection information on the local receiver." INDEX { tcpEStatsConnectIndex } ::= { tcpEStatsRecTable 1 } TcpEStatsRecEntry ::= SEQUENCE { tcpEStatsRecCurRwinSent Gauge32, tcpEStatsRecMaxRwinSent Gauge32, tcpEStatsRecMinRwinSent Gauge32, tcpEStatsRecLimRwin Gauge32, tcpEStatsRecDupAckEpisodes ZeroBasedCounter32, tcpEStatsRecDupAcksOut ZeroBasedCounter32, tcpEStatsRecCERcvd ZeroBasedCounter32, tcpEStatsRecECNSent ZeroBasedCounter32, tcpEStatsRecECNNonceRcvd ZeroBasedCounter32, tcpEStatsRecCurReasmQueue Gauge32, tcpEStatsRecMaxReasmQueue Gauge32, tcpEStatsRecCurAppRQueue Gauge32, tcpEStatsRecMaxAppRQueue Gauge32 } tcpEStatsRecCurRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The most recent window advertisement sent, in bytes." ::= { tcpEStatsRecEntry 1 } tcpEStatsRecMaxRwinSent OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum window advertisement sent, in bytes." ::= { 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 bytes." ::= { tcpEStatsRecEntry 3 } tcpEStatsRecLimRwin OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-write STATUS current DESCRIPTION "The maximum window advertisement which may be sent, in bytes." ::= { tcpEStatsRecEntry 4 } tcpEStatsRecDupAckEpisodes OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of duplicate ACKs sent." ::= { tcpEStatsRecEntry 6 } tcpEStatsRecCERcvd OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Received segments with Congestion Experienced bits. See RFC 2481." ::= { tcpEStatsRecEntry 7 } tcpEStatsRecECNSent OBJECT-TYPE SYNTAX ZeroBasedCounter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Number of times CE bits have set ECN. See RFC 2481." ::= { tcpEStatsRecEntry 8 } tcpEStatsRecECNNonceRcvd OBJECT-TYPE SYNTAX ZeroBasedCounter32 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 } tcpEStatsRecCurReasmQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of bytes of sequence space spanned by the reassembly queue. This is generally the difference between rcv.nxt and the sequence number of the right most edge of the reassembly queue." ::= { tcpEStatsRecEntry 10 } tcpEStatsRecMaxReasmQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum value of CurReasmQueue" ::= { tcpEStatsRecEntry 11 } tcpEStatsRecCurAppRQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The current number of bytes of application data that has been acknowledged by TCP but not yet delivered to the application." ::= { tcpEStatsRecEntry 12 } tcpEStatsRecMaxAppRQueue OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum number of bytes of application data that has been acknowledged by TCP but not yet delivered to the application." ::= { tcpEStatsRecEntry 13 } -- -- 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. Table activation is controlled by tcpEStatsControlObsRec." ::= { tcpEStats 9 } tcpEStatsObsRecEntry OBJECT-TYPE SYNTAX TcpEStatsObsRecEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Per connection information on receiver window." INDEX { tcpEStatsConnectIndex } ::= { 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 bytes." ::= { tcpEStatsObsRecEntry 1 } tcpEStatsObsRecMaxRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The maximum window advertisement received, in bytes." ::= { tcpEStatsObsRecEntry 2 } tcpEStatsObsRecMinRwinRcvd OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The minimum window advertisement received, in bytes." ::= { tcpEStatsObsRecEntry 3 } -- -- TCP Extended Statistics Notifications Group -- tcpEStatsEstablishNotification NOTIFICATION-TYPE OBJECTS { tcpEStatsConnectIndex } STATUS current DESCRIPTION "The indicated connection has entered the established state" ::= { tcpEStatsNotifications 1 } tcpEStatsCloseNotification NOTIFICATION-TYPE OBJECTS { tcpEStatsConnectIndex } STATUS current DESCRIPTION "The indicated connection has left the established state" ::= { 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 { tcpEStatsGroup, tcpEStatsControlGroup, tcpEStatsNotificationsGroup } ::= { 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, tcpEStatsDataHCDataBytesOut, tcpEStatsDataPktsIn, tcpEStatsDataDataPktsIn, tcpEStatsDataDataBytesIn, tcpEStatsDataHCDataBytesIn, tcpEStatsDataSoftErrors, tcpEStatsDataSoftErrorReason, tcpEStatsDataIpTtl, tcpEStatsDataIpTos, tcpEStatsDataSndUna, tcpEStatsDataSndNxt, tcpEStatsDataSndMax, tcpEStatsDataThruBytesAcked, tcpEStatsDataHCThruBytesAcked, tcpEStatsDataSndInitial, tcpEStatsDataRcvNxt, tcpEStatsDataThruBytesReceived, tcpEStatsDataHCThruBytesReceived, tcpEStatsDataRecInitial, tcpEStatsDataElapsedSecs, tcpEStatsDataDurationMicroSecs, tcpEStatsDataStartTimeStamp, tcpEStatsSndCongSndLimTransRwin, tcpEStatsSndCongSndLimTimeRwin, tcpEStatsSndCongSndLimTransCwnd, tcpEStatsSndCongSndLimTimeCwnd, tcpEStatsSndCongSndLimTransSnd, tcpEStatsSndCongSndLimTimeSnd, tcpEStatsSndCongSlowStart, tcpEStatsSndCongCongAvoid, tcpEStatsSndCongCongSignals, tcpEStatsSndCongOtherReductions, tcpEStatsSndCongCongOverCount, tcpEStatsSndCongCwndRestores, tcpEStatsSndCongCurCwnd, tcpEStatsSndCongMaxSsCwnd, tcpEStatsSndCongMaxCaCwnd, 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, tcpEStatsPathHCSumRTT, tcpEStatsPathCountRTT, tcpEStatsPathCurRTO, tcpEStatsPathMaxRTO, tcpEStatsPathMinRTO, tcpEStatsPathCurMSS, tcpEStatsPathMaxMSS, tcpEStatsPathMinMSS, tcpEStatsSendBuffCurRetxQueue, tcpEStatsSendBuffMaxRetxQueue, tcpEStatsSendBuffCurAppWQueue, tcpEStatsSendBuffMaxAppWQueue, tcpEStatsRecCurRwinSent, tcpEStatsRecMaxRwinSent, tcpEStatsRecMinRwinSent, tcpEStatsRecLimRwin, tcpEStatsRecDupAckEpisodes, tcpEStatsRecDupAcksOut, tcpEStatsRecCERcvd, tcpEStatsRecECNSent, tcpEStatsRecECNNonceRcvd, tcpEStatsRecCurReasmQueue, tcpEStatsRecMaxReasmQueue, tcpEStatsRecCurAppRQueue, tcpEStatsRecMaxAppRQueue, tcpEStatsObsRecCurRwinRcvd, tcpEStatsObsRecMaxRwinRcvd, tcpEStatsObsRecMinRwinRcvd, tcpEStatsListenerTableLastChange, tcpEStatsListenerTimeOuts, tcpEStatsListenerEstablished, tcpEStatsListenerStartTime, tcpEStatsConnectIndex } STATUS current DESCRIPTION "The tcpEStats group includes objects that provide valuable statistics and debugging information for TCP Connections." ::= { tcpEStatsGroups 1 } tcpEStatsControlGroup OBJECT-GROUP OBJECTS { tcpEStatsControlState, tcpEStatsControlSynOpts, tcpEStatsControlData, tcpEStatsControlSndCong, tcpEStatsControlPath, tcpEStatsControlSendBuff, tcpEStatsControlRec, tcpEStatsControlObsRec } STATUS current DESCRIPTION "The tcpEStatsControl group consists of objects that control collection of statistics/debugging information for TCP connections." ::= { tcpEStatsGroups 2 } tcpEStatsNotificationsGroup NOTIFICATION-GROUP NOTIFICATIONS { tcpEStatsEstablishNotification, tcpEStatsCloseNotification } 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, 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 -- developing 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 -- MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.