| tcpRtoAlgorithm | .1.3.6.1.2.1.6.1 | 
    
      | The algorithm used to determine the timeout value used for
        retransmitting unacknowledged octets. | 
    
      | tcpRtoMin | .1.3.6.1.2.1.6.2 | 
    
      | The minimum value permitted by a TCP implementation for
        the retransmission timeout, measured in milliseconds.
        More refined semantics for objects of this type depend
        on the algorithm used to determine the retransmission
        timeout; in particular, the IETF standard algorithm
        rfc2988(5) provides a minimum value. | 
    
      | tcpRtoMax | .1.3.6.1.2.1.6.3 | 
    
      | The maximum value permitted by a TCP implementation for
        the retransmission timeout, measured in milliseconds.
        More refined semantics for objects of this type depend
        on the algorithm used to determine the retransmission
        timeout; in particular, the IETF standard algorithm
        rfc2988(5) provides an upper bound (as part of an
        adaptive backoff algorithm). | 
    
      | tcpMaxConn | .1.3.6.1.2.1.6.4 | 
    
      | The limit on the total number of TCP connections the entity
        can support.  In entities where the maximum number of
        connections is dynamic, this object should contain the
        value -1. | 
    
      | tcpActiveOpens | .1.3.6.1.2.1.6.5 | 
    
      | The number of times that TCP connections have made a direct
        transition to the SYN-SENT state from the CLOSED state.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpPassiveOpens | .1.3.6.1.2.1.6.6 | 
    
      | The number of times TCP connections have made a direct
        transition to the SYN-RCVD state from the LISTEN state.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpAttemptFails | .1.3.6.1.2.1.6.7 | 
    
      | The number of times that TCP connections have made a direct
        transition to the CLOSED state from either the SYN-SENT
        state or the SYN-RCVD state, plus the number of times that
        TCP connections have made a direct transition to the
        LISTEN state from the SYN-RCVD state.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpEstabResets | .1.3.6.1.2.1.6.8 | 
    
      | The number of times that TCP connections have made a direct
        transition to the CLOSED state from either the ESTABLISHED
        state or the CLOSE-WAIT state.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpCurrEstab | .1.3.6.1.2.1.6.9 | 
    
      | The number of TCP connections for which the current state
        is either ESTABLISHED or CLOSE-WAIT. | 
    
      | tcpInSegs | .1.3.6.1.2.1.6.10 | 
    
      | The total number of segments received, including those
        received in error.  This count includes segments received
        on currently established connections.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpOutSegs | .1.3.6.1.2.1.6.11 | 
    
      | The total number of segments sent, including those on
        current connections but excluding those containing only
        retransmitted octets.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpRetransSegs | .1.3.6.1.2.1.6.12 | 
    
      | The total number of segments retransmitted; that is, the
        number of TCP segments transmitted containing one or more
        previously transmitted octets.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpInErrs | .1.3.6.1.2.1.6.14 | 
    
      | The total number of segments received in error (e.g., bad
        TCP checksums).
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpOutRsts | .1.3.6.1.2.1.6.15 | 
    
      | The number of TCP segments sent containing the RST flag.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpHCInSegs | .1.3.6.1.2.1.6.17 | 
    
      | The total number of segments received, including those
        received in error.  This count includes segments received
        on currently established connections.  This object is
        the 64-bit equivalent of tcpInSegs.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpHCOutSegs | .1.3.6.1.2.1.6.18 | 
    
      | The total number of segments sent, including those on
        current connections but excluding those containing only
        retransmitted octets.  This object is the 64-bit
        equivalent of tcpOutSegs.
        Discontinuities in the value of this counter are
        indicated via discontinuities in the value of sysUpTime. | 
    
      | tcpConnectionEntry | .1.3.6.1.2.1.6.19.1 | 
    
      | A conceptual row of the tcpConnectionTable containing
        information about a particular current TCP connection.
        Each row of this table is transient in that it ceases to
        exist when (or soon after) the connection makes the
        transition to the CLOSED state. | 
    
      | tcpListenerEntry | .1.3.6.1.2.1.6.20.1 | 
    
      | A conceptual row of the tcpListenerTable containing
        information about a particular TCP listener. | 
    
      | tcpConnEntry | .1.3.6.1.2.1.6.13.1 | 
    
      | A conceptual row of the tcpConnTable containing information
        about a particular current IPv4 TCP connection.  Each row
        of this table is transient in that it ceases to exist when
        (or soon after) the connection makes the transition to the
        CLOSED state. | 
  
  
    
      | tcpConnectionLocalAddressType | .1.3.6.1.2.1.6.19.1.1 | 
    
      | The address type of tcpConnectionLocalAddress. | 
    
      | tcpConnectionLocalAddress | .1.3.6.1.2.1.6.19.1.2 | 
    
      | The local IP address for this TCP connection.  The type
        of this address is determined by the value of
        tcpConnectionLocalAddressType.
        As this object is used in the index for the
        tcpConnectionTable, implementors should be
        careful not to create entries that would result in OIDs
        with more than 128 subidentifiers; otherwise the information
        cannot be accessed by using SNMPv1, SNMPv2c, or SNMPv3. | 
    
      | tcpConnectionLocalPort | .1.3.6.1.2.1.6.19.1.3 | 
    
      | The local port number for this TCP connection. | 
    
      | tcpConnectionRemAddressType | .1.3.6.1.2.1.6.19.1.4 | 
    
      | The address type of tcpConnectionRemAddress. | 
    
      | tcpConnectionRemAddress | .1.3.6.1.2.1.6.19.1.5 | 
    
      | The remote IP address for this TCP connection.  The type
        of this address is determined by the value of
        tcpConnectionRemAddressType.
        As this object is used in the index for the
        tcpConnectionTable, implementors should be
        careful not to create entries that would result in OIDs
        with more than 128 subidentifiers; otherwise the information
        cannot be accessed by using SNMPv1, SNMPv2c, or SNMPv3. | 
    
      | tcpConnectionRemPort | .1.3.6.1.2.1.6.19.1.6 | 
    
      | The remote port number for this TCP connection. | 
    
      | tcpConnectionState | .1.3.6.1.2.1.6.19.1.7 | 
    
      | The state of this TCP connection.
        The value listen(2) is included only for parallelism to the
        old tcpConnTable and should not be used.  A connection in
        LISTEN state should be present in the tcpListenerTable.
        The only value that may be set by a management station is
        deleteTCB(12).  Accordingly, it is appropriate for an agent
        to return a `badValue' response if a management station
        attempts to set this object to any other value.
        If a management station sets this object to the value
        deleteTCB(12), then the TCB (as defined in [RFC793]) of
        the corresponding connection on the managed node is
        deleted, resulting in immediate termination of the
        connection.
        As an implementation-specific option, a RST segment may be
        sent from the managed node to the other TCP endpoint (note,
        however, that RST segments are not sent reliably). | 
    
      | tcpConnectionProcess | .1.3.6.1.2.1.6.19.1.8 | 
    
      | The system's process ID for the process associated with
        this connection, or zero if there is no such process.  This
        value is expected to be the same as HOST-RESOURCES-MIB::
        hrSWRunIndex or SYSAPPL-MIB::sysApplElmtRunIndex for some
        row in the appropriate tables. | 
    
      | tcpListenerLocalAddressType | .1.3.6.1.2.1.6.20.1.1 | 
    
      | The address type of tcpListenerLocalAddress.  The value
        should be unknown (0) if connection initiations to all
        local IP addresses are accepted. | 
    
      | tcpListenerLocalAddress | .1.3.6.1.2.1.6.20.1.2 | 
    
      | The local IP address for this TCP connection.
        The value of this object can be represented in three
        possible ways, depending on the characteristics of the
        listening application:
        1. For an application willing to accept both IPv4 and
        IPv6 datagrams, the value of this object must be
        ''h (a zero-length octet-string), with the value
        of the corresponding tcpListenerLocalAddressType
        object being unknown (0).
        2. For an application willing to accept only IPv4 or
        IPv6 datagrams, the value of this object must be
        '0.0.0.0' or '::' respectively, with
        tcpListenerLocalAddressType representing the
        appropriate address type.
        3. For an application which is listening for data
        destined only to a specific IP address, the value
        of this object is the specific local address, with
        tcpListenerLocalAddressType representing the
        appropriate address type.
        As this object is used in the index for the
        tcpListenerTable, implementors should be
        careful not to create entries that would result in OIDs
        with more than 128 subidentifiers; otherwise the information
        cannot be accessed, using SNMPv1, SNMPv2c, or SNMPv3. | 
    
      | tcpListenerLocalPort | .1.3.6.1.2.1.6.20.1.3 | 
    
      | The local port number for this TCP connection. | 
    
      | tcpListenerProcess | .1.3.6.1.2.1.6.20.1.4 | 
    
      | The system's process ID for the process associated with
        this listener, or zero if there is no such process.  This
        value is expected to be the same as HOST-RESOURCES-MIB::
        hrSWRunIndex or SYSAPPL-MIB::sysApplElmtRunIndex for some
        row in the appropriate tables. | 
    
      | tcpConnLocalAddress | .1.3.6.1.2.1.6.13.1.2 | 
    
      | The local IP address for this TCP connection.  In the case
        of a connection in the listen state willing to
        accept connections for any IP interface associated with the
        node, the value 0.0.0.0 is used. | 
    
      | tcpConnLocalPort | .1.3.6.1.2.1.6.13.1.3 | 
    
      | The local port number for this TCP connection. | 
    
      | tcpConnRemAddress | .1.3.6.1.2.1.6.13.1.4 | 
    
      | The remote IP address for this TCP connection. | 
    
      | tcpConnRemPort | .1.3.6.1.2.1.6.13.1.5 | 
    
      | The remote port number for this TCP connection. | 
    
      | tcpConnState | .1.3.6.1.2.1.6.13.1.1 | 
    
      | The state of this TCP connection.
        The only value that may be set by a management station is
        deleteTCB(12).  Accordingly, it is appropriate for an agent
        to return a `badValue' response if a management station
        attempts to set this object to any other value.
        If a management station sets this object to the value
        deleteTCB(12), then the TCB (as defined in [RFC793]) of
        the corresponding connection on the managed node is
        deleted, resulting in immediate termination of the
        connection.
        As an implementation-specific option, a RST segment may be
        sent from the managed node to the other TCP endpoint (note,
        however, that RST segments are not sent reliably). |