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chenjinsong
331
src/mibs/rfc2012-tcp.mib
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331
src/mibs/rfc2012-tcp.mib
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TCP-MIB DEFINITIONS ::= BEGIN
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IMPORTS
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MODULE-IDENTITY, OBJECT-TYPE, Integer32, Gauge32,
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Counter32, IpAddress, mib-2 FROM SNMPv2-SMI
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MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF;
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tcpMIB MODULE-IDENTITY
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LAST-UPDATED "9411010000Z"
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ORGANIZATION "IETF SNMPv2 Working Group"
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CONTACT-INFO
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" Keith McCloghrie
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Postal: Cisco Systems, Inc.
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170 West Tasman Drive
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San Jose, CA 95134-1706
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US
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Phone: +1 408 526 5260
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Email: kzm@cisco.com"
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DESCRIPTION
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"The MIB module for managing TCP implementations."
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REVISION "9103310000Z"
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DESCRIPTION
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"The initial revision of this MIB module was part of MIB-
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II."
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::= { mib-2 49 }
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-- the TCP group
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tcp OBJECT IDENTIFIER ::= { mib-2 6 }
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tcpRtoAlgorithm OBJECT-TYPE
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SYNTAX INTEGER {
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other(1), -- none of the following
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constant(2), -- a constant rto
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rsre(3), -- MIL-STD-1778, Appendix B
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vanj(4) -- Van Jacobson's algorithm [5]
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}
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The algorithm used to determine the timeout value used for
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retransmitting unacknowledged octets."
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::= { tcp 1 }
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tcpRtoMin OBJECT-TYPE
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SYNTAX Integer32
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UNITS "milliseconds"
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The minimum value permitted by a TCP implementation for the
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retransmission timeout, measured in milliseconds. More
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refined semantics for objects of this type depend upon the
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algorithm used to determine the retransmission timeout. In
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particular, when the timeout algorithm is rsre(3), an object
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of this type has the semantics of the LBOUND quantity
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described in RFC 793."
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::= { tcp 2 }
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tcpRtoMax OBJECT-TYPE
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SYNTAX Integer32
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UNITS "milliseconds"
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The maximum value permitted by a TCP implementation for the
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retransmission timeout, measured in milliseconds. More
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refined semantics for objects of this type depend upon the
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algorithm used to determine the retransmission timeout. In
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particular, when the timeout algorithm is rsre(3), an object
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of this type has the semantics of the UBOUND quantity
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described in RFC 793."
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::= { tcp 3 }
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tcpMaxConn OBJECT-TYPE
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SYNTAX Integer32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The limit on the total number of TCP connections the entity
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can support. In entities where the maximum number of
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connections is dynamic, this object should contain the value
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-1."
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::= { tcp 4 }
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tcpActiveOpens OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of times TCP connections have made a direct
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transition to the SYN-SENT state from the CLOSED state."
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::= { tcp 5 }
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tcpPassiveOpens OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of times TCP connections have made a direct
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transition to the SYN-RCVD state from the LISTEN state."
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::= { tcp 6 }
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tcpAttemptFails OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of times TCP connections have made a direct
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transition to the CLOSED state from either the SYN-SENT
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state or the SYN-RCVD state, plus the number of times TCP
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connections have made a direct transition to the LISTEN
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state from the SYN-RCVD state."
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::= { tcp 7 }
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tcpEstabResets OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of times TCP connections have made a direct
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transition to the CLOSED state from either the ESTABLISHED
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state or the CLOSE-WAIT state."
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::= { tcp 8 }
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tcpCurrEstab OBJECT-TYPE
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SYNTAX Gauge32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of TCP connections for which the current state
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is either ESTABLISHED or CLOSE- WAIT."
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::= { tcp 9 }
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tcpInSegs OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The total number of segments received, including those
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received in error. This count includes segments received on
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currently established connections."
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::= { tcp 10 }
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tcpOutSegs OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The total number of segments sent, including those on
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current connections but excluding those containing only
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retransmitted octets."
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::= { tcp 11 }
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tcpRetransSegs OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The total number of segments retransmitted - that is, the
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number of TCP segments transmitted containing one or more
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previously transmitted octets."
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::= { tcp 12 }
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-- the TCP Connection table
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-- The TCP connection table contains information about this
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-- entity's existing TCP connections.
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tcpConnTable OBJECT-TYPE
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SYNTAX SEQUENCE OF TcpConnEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A table containing TCP connection-specific information."
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::= { tcp 13 }
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tcpConnEntry OBJECT-TYPE
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SYNTAX TcpConnEntry
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MAX-ACCESS not-accessible
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STATUS current
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DESCRIPTION
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"A conceptual row of the tcpConnTable containing information
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about a particular current TCP connection. Each row of this
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table is transient, in that it ceases to exist when (or soon
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after) the connection makes the transition to the CLOSED
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state."
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INDEX { tcpConnLocalAddress,
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tcpConnLocalPort,
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tcpConnRemAddress,
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tcpConnRemPort }
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::= { tcpConnTable 1 }
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TcpConnEntry ::= SEQUENCE {
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tcpConnState INTEGER,
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tcpConnLocalAddress IpAddress,
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tcpConnLocalPort INTEGER,
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tcpConnRemAddress IpAddress,
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tcpConnRemPort INTEGER
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}
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tcpConnState OBJECT-TYPE
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SYNTAX INTEGER {
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closed(1),
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listen(2),
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synSent(3),
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synReceived(4),
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established(5),
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finWait1(6),
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finWait2(7),
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closeWait(8),
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lastAck(9),
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closing(10),
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timeWait(11),
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deleteTCB(12)
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}
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The state of this TCP connection.
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The only value which may be set by a management station is
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deleteTCB(12). Accordingly, it is appropriate for an agent
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to return a `badValue' response if a management station
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attempts to set this object to any other value.
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If a management station sets this object to the value
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deleteTCB(12), then this has the effect of deleting the TCB
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(as defined in RFC 793) of the corresponding connection on
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the managed node, resulting in immediate termination of the
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connection.
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As an implementation-specific option, a RST segment may be
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sent from the managed node to the other TCP endpoint (note
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however that RST segments are not sent reliably)."
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::= { tcpConnEntry 1 }
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tcpConnLocalAddress OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The local IP address for this TCP connection. In the case
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of a connection in the listen state which is willing to
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accept connections for any IP interface associated with the
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node, the value 0.0.0.0 is used."
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::= { tcpConnEntry 2 }
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tcpConnLocalPort OBJECT-TYPE
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SYNTAX INTEGER (0..65535)
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The local port number for this TCP connection."
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::= { tcpConnEntry 3 }
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tcpConnRemAddress OBJECT-TYPE
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SYNTAX IpAddress
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The remote IP address for this TCP connection."
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::= { tcpConnEntry 4 }
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tcpConnRemPort OBJECT-TYPE
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SYNTAX INTEGER (0..65535)
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The remote port number for this TCP connection."
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::= { tcpConnEntry 5 }
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tcpInErrs OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The total number of segments received in error (e.g., bad
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TCP checksums)."
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::= { tcp 14 }
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tcpOutRsts OBJECT-TYPE
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SYNTAX Counter32
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MAX-ACCESS read-only
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STATUS current
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DESCRIPTION
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"The number of TCP segments sent containing the RST flag."
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::= { tcp 15 }
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-- conformance information
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tcpMIBConformance OBJECT IDENTIFIER ::= { tcpMIB 2 }
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tcpMIBCompliances OBJECT IDENTIFIER ::= { tcpMIBConformance 1 }
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tcpMIBGroups OBJECT IDENTIFIER ::= { tcpMIBConformance 2 }
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-- compliance statements
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tcpMIBCompliance MODULE-COMPLIANCE
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STATUS current
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DESCRIPTION
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"The compliance statement for SNMPv2 entities which
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implement TCP."
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MODULE -- this module
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MANDATORY-GROUPS { tcpGroup
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}
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::= { tcpMIBCompliances 1 }
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-- units of conformance
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tcpGroup OBJECT-GROUP
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OBJECTS { tcpRtoAlgorithm, tcpRtoMin, tcpRtoMax,
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tcpMaxConn, tcpActiveOpens,
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tcpPassiveOpens, tcpAttemptFails,
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tcpEstabResets, tcpCurrEstab, tcpInSegs,
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tcpOutSegs, tcpRetransSegs, tcpConnState,
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tcpConnLocalAddress, tcpConnLocalPort,
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tcpConnRemAddress, tcpConnRemPort,
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tcpInErrs, tcpOutRsts }
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STATUS current
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DESCRIPTION
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"The tcp group of objects providing for management of TCP
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entities."
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::= { tcpMIBGroups 1 }
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END
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