📄 rfc1516.txt
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and for which the FCSError and CollisionEvent
signals were not asserted. This counter is the
summation of the values of the
rptrMonitorPortReadableFrames counters for all of
the ports in the group.
This statistic provides one of the parameters
necessary for obtaining the packet error rate.
The approximate minimum time for rollover of this
counter is 80 hours."
::= { rptrMonitorGroupEntry 2 }
rptrMonitorGroupTotalOctets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The total number of octets contained in the valid
frames that have been received on the ports in
this group. This counter is the summation of the
values of the rptrMonitorPortReadableOctets
counters for all of the ports in the group.
This statistic provides an indicator of the total
data transferred. The approximate minimum time
for rollover of this counter is 58 minutes."
::= { rptrMonitorGroupEntry 3 }
rptrMonitorGroupTotalErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"The total number of errors which have occurred on
all of the ports in this group. This counter is
the summation of the values of the
rptrMonitorPortTotalErrors counters for all of the
ports in the group."
::= { rptrMonitorGroupEntry 4 }
--
-- The Port Monitor Table
McMaster & McCloghrie [Page 25]
RFC 1516 802.3 Repeater MIB September 1993
--
rptrMonitorPortTable OBJECT-TYPE
SYNTAX SEQUENCE OF RptrMonitorPortEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"Table of performance and error statistics for the
ports."
::= { rptrMonitorPortInfo 1 }
rptrMonitorPortEntry OBJECT-TYPE
SYNTAX RptrMonitorPortEntry
ACCESS not-accessible
STATUS mandatory
DESCRIPTION
"An entry in the table, containing performance and
error statistics for a single port."
INDEX { rptrMonitorPortGroupIndex, rptrMonitorPortIndex }
::= { rptrMonitorPortTable 1 }
RptrMonitorPortEntry ::=
SEQUENCE {
rptrMonitorPortGroupIndex
INTEGER,
rptrMonitorPortIndex
INTEGER,
rptrMonitorPortReadableFrames
Counter,
rptrMonitorPortReadableOctets
Counter,
rptrMonitorPortFCSErrors
Counter,
rptrMonitorPortAlignmentErrors
Counter,
rptrMonitorPortFrameTooLongs
Counter,
rptrMonitorPortShortEvents
Counter,
rptrMonitorPortRunts
Counter,
rptrMonitorPortCollisions
Counter,
rptrMonitorPortLateEvents
Counter,
rptrMonitorPortVeryLongEvents
Counter,
rptrMonitorPortDataRateMismatches
McMaster & McCloghrie [Page 26]
RFC 1516 802.3 Repeater MIB September 1993
Counter,
rptrMonitorPortAutoPartitions
Counter,
rptrMonitorPortTotalErrors
Counter
}
rptrMonitorPortGroupIndex OBJECT-TYPE
SYNTAX INTEGER (1..1024)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This object identifies the group containing the
port for which this entry contains information."
::= { rptrMonitorPortEntry 1 }
rptrMonitorPortIndex OBJECT-TYPE
SYNTAX INTEGER (1..1024)
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This object identifies the port within the group
for which this entry contains information."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
aPortID."
::= { rptrMonitorPortEntry 2 }
rptrMonitorPortReadableFrames OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This object is the number of frames of valid
frame length that have been received on this port.
This counter is incremented by one for each frame
received on this port whose OctetCount is greater
than or equal to minFrameSize and less than or
equal to maxFrameSize (Ref: IEEE 802.3 Std,
4.4.2.1) and for which the FCSError and
CollisionEvent signals are not asserted.
This statistic provides one of the parameters
necessary for obtaining the packet error rate.
The approximate minimum time for rollover of this
counter is 80 hours."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
McMaster & McCloghrie [Page 27]
RFC 1516 802.3 Repeater MIB September 1993
aReadableFrames."
::= { rptrMonitorPortEntry 3 }
rptrMonitorPortReadableOctets OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This object is the number of octets contained in
valid frames that have been received on this port.
This counter is incremented by OctetCount for each
frame received on this port which has been
determined to be a readable frame (i.e., including
FCS octets but excluding framing bits and dribble
bits).
This statistic provides an indicator of the total
data transferred. The approximate minimum time
for rollover of this counter is 58 minutes."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
aReadableOctets."
::= { rptrMonitorPortEntry 4 }
rptrMonitorPortFCSErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This counter is incremented by one for each frame
received on this port with the FCSError signal
asserted and the FramingError and CollisionEvent
signals deasserted and whose OctetCount is greater
than or equal to minFrameSize and less than or
equal to maxFrameSize (Ref: 4.4.2.1, IEEE 802.3
Std).
The approximate minimum time for rollover of this
counter is 80 hours."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
aFrameCheckSequenceErrors."
::= { rptrMonitorPortEntry 5 }
rptrMonitorPortAlignmentErrors OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
McMaster & McCloghrie [Page 28]
RFC 1516 802.3 Repeater MIB September 1993
DESCRIPTION
"This counter is incremented by one for each frame
received on this port with the FCSError and
FramingError signals asserted and CollisionEvent
signal deasserted and whose OctetCount is greater
than or equal to minFrameSize and less than or
equal to maxFrameSize (Ref: IEEE 802.3 Std,
4.4.2.1). If rptrMonitorPortAlignmentErrors is
incremented then the rptrMonitorPortFCSErrors
Counter shall not be incremented for the same
frame.
The approximate minimum time for rollover of this
counter is 80 hours."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
aAlignmentErrors."
::= { rptrMonitorPortEntry 6 }
rptrMonitorPortFrameTooLongs OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This counter is incremented by one for each frame
received on this port whose OctetCount is greater
than maxFrameSize (Ref: 4.4.2.1, IEEE 802.3 Std).
If rptrMonitorPortFrameTooLongs is incremented
then neither the rptrMonitorPortAlignmentErrors
nor the rptrMonitorPortFCSErrors counter shall be
incremented for the frame.
The approximate minimum time for rollover of this
counter is 61 days."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
aFramesTooLong."
::= { rptrMonitorPortEntry 7 }
rptrMonitorPortShortEvents OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This counter is incremented by one for each
CarrierEvent on this port with ActivityDuration
less than ShortEventMaxTime. ShortEventMaxTime is
greater than 74 bit times and less than 82 bit
McMaster & McCloghrie [Page 29]
RFC 1516 802.3 Repeater MIB September 1993
times. ShortEventMaxTime has tolerances included
to provide for circuit losses between a
conformance test point at the AUI and the
measurement point within the state machine.
Note: shortEvents may indicate externally
generated noise hits which will cause the repeater
to transmit Runts to its other ports, or propagate
a collision (which may be late) back to the
transmitting DTE and damaged frames to the rest of
the network.
Implementors may wish to consider selecting the
ShortEventMaxTime towards the lower end of the
allowed tolerance range to accommodate bit losses
suffered through physical channel devices not
budgeted for within this standard.
The approximate minimum time for rollover of this
counter is 16 hours."
REFERENCE
"Reference IEEE 802.3 Rptr Mgt, 19.2.6.2,
aShortEvents."
::= { rptrMonitorPortEntry 8 }
rptrMonitorPortRunts OBJECT-TYPE
SYNTAX Counter
ACCESS read-only
STATUS mandatory
DESCRIPTION
"This counter is incremented by one for each
CarrierEvent on this port that meets one of the
following two conditions. Only one test need be
made. a) The ActivityDuration is greater than
ShortEventMaxTime and less than ValidPacketMinTime
and the CollisionEvent signal is deasserted. b)
The OctetCount is less than 64, the
ActivityDuration is greater than ShortEventMaxTime
and the CollisionEvent signal is deasserted.
ValidPacketMinTime is greater than or equal to 552
bit times and less than 565 bit times.
An event whose length is greater than 74 bit times
but less than 82 bit times shall increment either
the shortEvents counter or the runts counter but
not both. A CarrierEvent greater than or equal to
552 bit times but less than 565 bit times may or
may not be counted as a runt.
McMaster & McCloghrie [Page 30]
RFC 1516 802.3 Repeater MIB September 1993
ValidPacketMinTime has tolerances included to
provide for circuit losses between a conformance
test point at the AUI and the measurement point
within the state machine.
Runts usually indicate collision fragments, a
normal network event. In certai⌨️ 快捷键说明
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