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Updated Implementation Report Received: May 5, 2003 (original follows)
RMONMIB WG, OPS-NM Area
Implementation Report for RFC 2021 :
Remote Network Monitoring Management Information Base Version 2
WG Chair: Andy Bierman
April 19, 2003
------------------------------
Introduction
------------
This report summarizes the implementation reports received
for RFC 2021. A survey for this RFC was sent to the WG
mailing list and the results shown below are aligned with
that survey form.
Survey Issues
-------------
The primary statistical object groups seem to be widely implemented.
There were some implementation issues raised, such as:
- dropped frames counters not always correct due to
limitations in the HW or device driver.
- resource limitations constrain number of control entries
that may be created and/or number of related protocol entries
in the protocolDirTable.
- flexible configuration of the protocol directory and complex
protocol encapsulation representation makes agent implementation
too complicated.
None of these issues are considered critical, but they do
indicate that the RMON-2 design and functional requirements
are too complicated in some areas.
There are several secondary statistical objects and configuration
objects which are not widely implemented. The lack of implementation
experience for these objects indicates that they are not widely
useful or applicable to current market requirements for RMON-2
agent technology.
A significant design flaw was exposed in the process of collecting
implementation reports. The defined behavior of the TimeFilter
textual convention (used in many statistical data tables) is
quite sub-optimal for SNMP GetNext and GetBulk protocol
operations. Basically, TimeFilter causes simple mibwalks to
continue without end, and GetBulk response PDUs to contain lots
of duplicate information. As a result, many vendors have relaxed
the specification for TimeFilter and automatically 'wrap' the
lexinext retrieval of tables that include a TimeFilter index,
such that duplicate entries are not returned. There is no
benefit whatsoever to the official behavior of the TimeFilter.
The RMONMIB WG has decided that an attempt should be made to
fix the TimeFilter specification such that duplicate entries
are not returned by the agent during lexinext retrieval of
a table that uses a TimeFilter index.
Survey Conclusion
-----------------
There are many objects in the RMON2-MIB which are implemented
consistently in agents. In particular, the objects which provide
statistical information are widely implemented. However, there
are also many objects which are not implemented, which are related
to configuration of stand-alone RMON probes.
The RMON2-MIB contains textual conventions and some objects which
are used in other MIB modules. The protocol directory is an
important component of the RMON framework, which is used in
several RMON MIB modules to identify protocol encapsulations.
The RMONMIB WG believes it is useful to advance the implemented
portions of RFC 2021 at this time, because they are stable, and
the RMON2-MIB is holding up advancement of other RFCs which
utilize some of these stable portions of the RMON2-MIB module.
The WG recommends that an update to RFC 2021 be created which
can then be published as a Draft Standard RFC. The following
actions will be taken by the WG:
1) The following MIB objects will be deprecated:
probeDownloadFile
probeDownloadTFTPServer
probeDownloadAction
probeDownloadStatus
serialMode
serialProtocol
serialTimeout
serialModemInitString
serialModemHangUpString
serialModemConnectResp
serialModemNoConnectResp
serialDialoutTimeout
serialStatus
serialConnectDestIpAddress
serialConnectType
serialConnectDialString
serialConnectSwitchConnectSeq
serialConnectSwitchDisconnectSeq
serialConnectSwitchResetSeq
serialConnectOwner
serialConnectStatus
netConfigIPAddress
netConfigSubnetMask
netConfigStatus
netDefaultGateway
tokenRingMLStatsDroppedFrames
tokenRingMLStatsCreateTime
tokenRingPStatsDroppedFrames
tokenRingPStatsCreateTime
ringStationControlDroppedFrames
ringStationControlCreateTime
sourceRoutingStatsDroppedFrames
sourceRoutingStatsCreateTime
2) A new MODULE-COMPLIANCE and appropriate GROUP macros will be
added which removes the newly deprecated objects.
3) The boilerplate and references will be updated to be aligned
with the current template.
4) The nlMatrixTopNControlRateBase and nlMatrixTopNControlRateBase
objects will be updated to integrate the changes described in
section 3 of the HC-RMON MIB (RFC 3273). The conformance
section of the RMON2-MIB module will be updated to indicate
that the addition high capacity enumerations are not required
for compliance to the RMON2-MIB.
5) The WG will attempt to address the TimeFilter issues in a manner
that does not require the RMON2-MIB module to cycle at Proposed
Standard. It is not clear if a separate document is required to
accomplish this goal.
Survey Respondents
------------------
There were four responses, labeled 'A' through 'D' in the
response summary section, which correspond to the following
vendor implementations:
A == Triticom agent
B == Network Harmoni agent
C == Cisco Systems Network Analysis Module agent
D == Enterasys agent
Survey Response Summary
-----------------------
Key:
x == fully implemented
r == implemented read-only, no user entries allowed in table
a == implemented as OCTET STRING instead of BITS
b == value will be reused if entry deleted and then recreated
with same semantics, in order to simplify code
Developer ID
MIB object description A B C D
-------------------------------------------------------
management application | | | | |
agent | x | x | x | x |
-------------------------------------------------------
implemented on an RMON probe | x | x | x | |
embedded in a network device | | | | x |
-------------------------------------------------------
protocolDirLocalIndex | x | x | b | x |
protocolDirDescr | x | x | x | x |
protocolDirType | x | x | x | x |
protocolDirAddressMapConfig | x | x | x | x |
protocolDirHostConfig | x | x | x | x |
protocolDirMatrixConfig | x | x | x | x |
protocolDirOwner | x | x | x | x |
protocolDirStatus | r | x | x | x |
-------------------------------------------------------
protocolDistControlDataSource | x | x | x | x |
protocolDistControlDroppedFrames | x | x | x | x |
protocolDistControlCreateTime | x | x | x | x |
protocolDistControlOwner | x | x | x | x |
protocolDistControlStatus | x | x | x | x |
protocolDistStatsPkts | x | x | x | x |
protocolDistStatsOctets | x | x | x | x |
-------------------------------------------------------
addressMapInserts | x | x | x | x |
addressMapDeletes | x | x | x | x |
addressMapMaxDesiredEntries | x | x | x | x |
addressMapControlDataSource | x | x | x | x |
addressMapControlDroppedFrames | x | x | x | x |
addressMapControlOwner | x | x | x | x |
addressMapControlStatus | x | x | x | x |
addressMapPhysicalAddress | x | x | x | x |
addressMapLastChange | x | x | x | x |
-------------------------------------------------------
hlHostControlDataSource | x | x | x | x |
hlHostControlNlDroppedFrames | x | x | x | x |
hlHostControlNlInserts | x | x | x | x |
hlHostControlNlDeletes | x | x | x | x |
hlHostControlNlMaxDesiredEntries | x | x | x | x |
hlHostControlAlDroppedFrames | x | x | x | x |
hlHostControlAlInserts | x | x | x | x |
hlHostControlAlDeletes | x | x | x | x |
hlHostControlAlMaxDesiredEntries | x | x | x | x |
hlHostControlOwner | x | x | x | x |
hlHostControlStatus | x | x | x | x |
nlHostInPkts | x | x | x | x |
nlHostOutPkts | x | x | x | x |
nlHostInOctets | x | x | x | x |
nlHostOutOctets | x | x | x | x |
nlHostOutMacNonUnicastPkts | x | x | x | x |
nlHostCreateTime | x | x | x | x |
alHostInPkts | x | x | x | x |
alHostOutPkts | x | x | x | x |
alHostInOctets | x | x | x | x |
alHostOutOctets | x | x | x | x |
alHostCreateTime | x | x | x | x |
-------------------------------------------------------
hlMatrixControlDataSource | x | x | x | x |
hlMatrixControlNlDroppedFrames | x | x | x | x |
hlMatrixControlNlInserts | x | x | x | x |
hlMatrixControlNlDeletes | x | x | x | x |
hlMatrixControlNlMaxDesiredEntries | x | x | x | x |
hlMatrixControlAlDroppedFrames | x | x | x | x |
hlMatrixControlAlInserts | x | x | x | x |
hlMatrixControlAlDeletes | x | x | x | x |
hlMatrixControlAlMaxDesiredEntries | x | x | x | x |
hlMatrixControlOwner | x | x | x | x |
hlMatrixControlStatus | x | x | x | x |
nlMatrixSDPkts | x | x | x | x |
nlMatrixSDOctets | x | x | x | x |
nlMatrixSDCreateTime | x | x | x | x |
nlMatrixDSPkts | x | x | x | x |
nlMatrixDSOctets | x | x | x | x |
nlMatrixDSCreateTime | x | x | x | x |
alMatrixSDPkts | x | x | x | x |
alMatrixSDOctets | x | x | x | x |
alMatrixSDCreateTime | x | x | x | x |
alMatrixDSPkts | x | x | x | x |
alMatrixDSOctets | x | x | x | x |
alMatrixDSCreateTime | x | x | x | x |
-------------------------------------------------------
nlMatrixTopNControlMatrixIndex | x | x | x | x |
nlMatrixTopNControlRateBase | x | x | x | x |
nlMatrixTopNControlTimeRemaining | x | x | x | x |
nlMatrixTopNControlGeneratedReports | x | x | x | x |
nlMatrixTopNControlDuration | x | x | x | x |
nlMatrixTopNControlRequestedSize | x | x | x | x |
nlMatrixTopNControlGrantedSize | x | x | x | x |
nlMatrixTopNControlStartTime | x | x | x | x |
nlMatrixTopNControlOwner | x | x | x | x |
nlMatrixTopNControlStatus | x | x | x | x |
nlMatrixTopNProtocolDirLocalIndex | x | x | x | x |
nlMatrixTopNSourceAddress | x | x | x | x |
nlMatrixTopNDestAddress | x | x | x | x |
nlMatrixTopNPktRate | x | x | x | x |
nlMatrixTopNReversePktRate | x | x | x | x |
nlMatrixTopNOctetRate | x | x | x | x |
nlMatrixTopNReverseOctetRate | x | x | x | x |
-------------------------------------------------------
alMatrixTopNControlMatrixIndex | x | x | x | x |
alMatrixTopNControlRateBase | x | x | x | x |
alMatrixTopNControlTimeRemaining | x | x | x | x |
alMatrixTopNControlGeneratedReports | x | x | x | x |
alMatrixTopNControlDuration | x | x | x | x |
alMatrixTopNControlRequestedSize | x | x | x | x |
alMatrixTopNControlGrantedSize | x | x | x | x |
alMatrixTopNControlStartTime | x | x | x | x |
alMatrixTopNControlOwner | x | x | x | x |
alMatrixTopNControlStatus | x | x | x | x |
alMatrixTopNProtocolDirLocalIndex | x | x | x | x |
alMatrixTopNSourceAddress | x | x | x | x |
alMatrixTopNDestAddress | x | x | x | x |
alMatrixTopNAppProtocolDirLocalIndex | x | x | x | x |
alMatrixTopNPktRate | x | x | x | x |
alMatrixTopNReversePktRate | x | x | x | x |
alMatrixTopNOctetRate | x | x | x | x |
alMatrixTopNReverseOctetRate | x | x | x | x |
-------------------------------------------------------
usrHistoryControlObjects | x | x | x | x |
usrHistoryControlBucketsRequested | x | x | x | x |
usrHistoryControlBucketsGranted | x | x | x | x |
usrHistoryControlInterval | x | x | x | x |
usrHistoryControlOwner | x | x | x | x |
usrHistoryControlStatus | x | x | x | x |
usrHistoryObjectVariable | x | x | x | x |
usrHistoryObjectSampleType | x | x | x | x |
usrHistoryIntervalStart | x | x | x | x |
usrHistoryIntervalEnd | x | x | x | x |
usrHistoryAbsValue | x | x | x | x |
usrHistoryValStatus | x | x | x | x |
-------------------------------------------------------
probeCapabilities | x | a | x | x |
probeSoftwareRev | x | x | x | x |
probeHardwareRev | x | | | x |
probeDateTime | x | x | r | x |
probeResetControl | | x | r | x |
probeDownloadFile | | x | | |
probeDownloadTFTPServer | | x | | |
probeDownloadAction | | x | | |
probeDownloadStatus | | x | | |
-------------------------------------------------------
serialMode | | | | |
serialProtocol | | | | |
serialTimeout | | | | |
serialModemInitString | | | | |
serialModemHangUpString | | | | |
serialModemConnectResp | | | | |
serialModemNoConnectResp | | | | |
serialDialoutTimeout | | | | |
serialStatus | | | | |
serialConnectDestIpAddress | | | | |
serialConnectType | | | | |
serialConnectDialString | | | | |
serialConnectSwitchConnectSeq | | | | |
serialConnectSwitchDisconnectSeq | | | | |
serialConnectSwitchResetSeq | | | | |
serialConnectOwner | | | | |
serialConnectStatus | | | | |
-------------------------------------------------------
netConfigIPAddress | | | | |
netConfigSubnetMask | | | | |
netConfigStatus | | | | |
netDefaultGateway | | | x | |
-------------------------------------------------------
trapDestCommunity | | x | x | x |
trapDestProtocol | | x | x | x |
trapDestAddress | | x | x | x |
trapDestOwner | | x | x | x |
trapDestStatus | | x | x | x |
-------------------------------------------------------
etherStatsDroppedFrames | | x | x | x |
etherStatsCreateTime | | x | x | x |
historyControlDroppedFrames | | x | x | x |
hostControlDroppedFrames | | x | x | x |
hostControlCreateTime | | x | x | x |
matrixControlDroppedFrames | | x | x | x |
matrixControlCreateTime | | x | x | x |
channelDroppedFrames | | x | x | x |
channelCreateTime | | x | x | x |
filterProtocolDirDataLocalIndex | | x | x | x |
filterProtocolDirLocalIndex | | x | x | x |
-------------------------------------------------------
tokenRingMLStatsDroppedFrames | | x | | |
tokenRingMLStatsCreateTime | | x | | |
tokenRingPStatsDroppedFrames | | x | | |
tokenRingPStatsCreateTime | | x | | |
ringStationControlDroppedFrames | | x | | |
ringStationControlCreateTime | | x | | |
sourceRoutingStatsDroppedFrames | | x | | |
sourceRoutingStatsCreateTime | | x | | |
-------------------------------------------------------
follow the TimeFilter specification | | x | | x |
relax the TimeFilter specification | x | | | |
both, configurable | | | x | |
-------------------------------------------------------
Original Implementation Report
Implementation Report for RFC 2021 :
Remote Network Monitoring Management Information Base Version 2
WG Chair: Andy Bierman
December 4, 2002
------------------------------
Introduction
------------
This report summarizes the implementation reports received
for RFC 2021. A survey for this RFC was sent to the WG
mailing list and the results shown below are aligned with
that survey form.
Survey Issues
-------------
The primary statistical object groups seem to be widely implemented.
There were some implementation issues raised, such as:
- dropped frames counters not always correct due to
limitations in the HW or device driver.
- resource limitations constrain number of control entries
that may be created and/or number of related protocol entries
in the protocolDirTable.
- flexible configuration of the protocol directory and complex
protocol encapsulation representation makes agent implementation
too complicated.
None of these issues are considered critical, but they do
indicate that the RMON-2 design and functional requirements
are too complicated in some areas.
There are several secondary statistical objects and configuration
objects which are not widely implemented. The lack of implementation
experience for these objects indicates that they are not widely
useful or applicable to current market requirements for RMON-2
agent technology.
A significant design flaw was exposed in the process of collecting
implementation reports. The defined behavior of the TimeFilter
textual convention (used in many statistical data tables) is
quite sub-optimal for SNMP GetNext and GetBulk protocol
operations. Basically, TimeFilter causes simple mibwalks to
continue without end, and GetBulk response PDUs to contain lots
of duplicate information. As a result, many vendors have relaxed
the specification for TimeFilter and automatically 'wrap' the
lexinext retrieval of tables that include a TimeFilter index,
such that duplicate entries are not returned. There is no
benefit whatsoever to the official behavior of the TimeFilter.
The RMONMIB WG has decided that an attempt should be made to
fix the TimeFilter specification such that duplicate entries
are not returned by the agent during lexinext retrieval of
a table that uses a TimeFilter index.
Survey Conclusion
-----------------
Due to the numerous unimplemented MIB objects and the problem with
tables using a TimeFilter index, the RMONMIB WG believes that
RFC 2021 is not ready for advancement at this time. The RMONMIB WG
will attempt to fix the TimeFilter issues and cycle the RMON-2 MIB
at Proposed Standard.
Survey Respondents
------------------
There were three responses, labeled 'A' through 'C' in the
response summary section, which correspond to the following
vendor implementations:
A == Triticom agent
B == Network Harmoni agent
C == Cisco Systems Network Analysis Module agent
Survey Response Summary
-----------------------
Key:
x == fully implemented
r == implemented read-only, no user entries allowed in table
a == implemented as OCTET STRING instead of BITS
b == value will be reused if entry deleted and then recreated
with same semantics, in order to simplify code
Developer ID
MIB object description A B C
---------------------------------------------------
management application | | | |
agent | x | x | x |
---------------------------------------------------
implemented on an RMON probe | x | x | x |
embedded in a network device | | | |
---------------------------------------------------
protocolDirLocalIndex | x | x | b |
protocolDirDescr | x | x | x |
protocolDirType | x | x | x |
protocolDirAddressMapConfig | x | x | x |
protocolDirHostConfig | x | x | x |
protocolDirMatrixConfig | x | x | x |
protocolDirOwner | x | x | x |
protocolDirStatus | r | x | x |
---------------------------------------------------
protocolDistControlDataSource | x | x | x |
protocolDistControlDroppedFrames | x | x | x |
protocolDistControlCreateTime | x | x | x |
protocolDistControlOwner | x | x | x |
protocolDistControlStatus | x | x | x |
protocolDistStatsPkts | x | x | x |
protocolDistStatsOctets | x | x | x |
---------------------------------------------------
addressMapInserts | x | x | x |
addressMapDeletes | x | x | x |
addressMapMaxDesiredEntries | x | x | x |
addressMapControlDataSource | x | x | x |
addressMapControlDroppedFrames | x | x | x |
addressMapControlOwner | x | x | x |
addressMapControlStatus | x | x | x |
addressMapPhysicalAddress | x | x | x |
addressMapLastChange | x | x | x |
---------------------------------------------------
hlHostControlDataSource | x | x | x |
hlHostControlNlDroppedFrames | x | x | x |
hlHostControlNlInserts | x | x | x |
hlHostControlNlDeletes | x | x | x |
hlHostControlNlMaxDesiredEntries | x | x | x |
hlHostControlAlDroppedFrames | x | x | x |
hlHostControlAlInserts | x | x | x |
hlHostControlAlDeletes | x | x | x |
hlHostControlAlMaxDesiredEntries | x | x | x |
hlHostControlOwner | x | x | x |
hlHostControlStatus | x | x | x |
nlHostInPkts | x | x | x |
nlHostOutPkts | x | x | x |
nlHostInOctets | x | x | x |
nlHostOutOctets | x | x | x |
nlHostOutMacNonUnicastPkts | x | x | x |
nlHostCreateTime | x | x | x |
alHostInPkts | x | x | x |
alHostOutPkts | x | x | x |
alHostInOctets | x | x | x |
alHostOutOctets | x | x | x |
alHostCreateTime | x | x | x |
---------------------------------------------------
hlMatrixControlDataSource | x | x | x |
hlMatrixControlNlDroppedFrames | x | x | x |
hlMatrixControlNlInserts | x | x | x |
hlMatrixControlNlDeletes | x | x | x |
hlMatrixControlNlMaxDesiredEntries | x | x | x |
hlMatrixControlAlDroppedFrames | x | x | x |
hlMatrixControlAlInserts | x | x | x |
hlMatrixControlAlDeletes | x | x | x |
hlMatrixControlAlMaxDesiredEntries | x | x | x |
hlMatrixControlOwner | x | x | x |
hlMatrixControlStatus | x | x | x |
nlMatrixSDPkts | x | x | x |
nlMatrixSDOctets | x | x | x |
nlMatrixSDCreateTime | x | x | x |
nlMatrixDSPkts | x | x | x |
nlMatrixDSOctets | x | x | x |
nlMatrixDSCreateTime | x | x | x |
alMatrixSDPkts | x | x | x |
alMatrixSDOctets | x | x | x |
alMatrixSDCreateTime | x | x | x |
alMatrixDSPkts | x | x | x |
alMatrixDSOctets | x | x | x |
alMatrixDSCreateTime | x | x | x |
---------------------------------------------------
nlMatrixTopNControlMatrixIndex | x | x | x |
nlMatrixTopNControlRateBase | x | x | x |
nlMatrixTopNControlTimeRemaining | x | x | x |
nlMatrixTopNControlGeneratedReports | x | x | x |
nlMatrixTopNControlDuration | x | x | x |
nlMatrixTopNControlRequestedSize | x | x | x |
nlMatrixTopNControlGrantedSize | x | x | x |
nlMatrixTopNControlStartTime | x | x | x |
nlMatrixTopNControlOwner | x | x | x |
nlMatrixTopNControlStatus | x | x | x |
nlMatrixTopNProtocolDirLocalIndex | x | x | x |
nlMatrixTopNSourceAddress | x | x | x |
nlMatrixTopNDestAddress | x | x | x |
nlMatrixTopNPktRate | x | x | x |
nlMatrixTopNReversePktRate | x | x | x |
nlMatrixTopNOctetRate | x | x | x |
nlMatrixTopNReverseOctetRate | x | x | x |
---------------------------------------------------
alMatrixTopNControlMatrixIndex | x | x | x |
alMatrixTopNControlRateBase | x | x | x |
alMatrixTopNControlTimeRemaining | x | x | x |
alMatrixTopNControlGeneratedReports | x | x | x |
alMatrixTopNControlDuration | x | x | x |
alMatrixTopNControlRequestedSize | x | x | x |
alMatrixTopNControlGrantedSize | x | x | x |
alMatrixTopNControlStartTime | x | x | x |
alMatrixTopNControlOwner | x | x | x |
alMatrixTopNControlStatus | x | x | x |
alMatrixTopNProtocolDirLocalIndex | x | x | x |
alMatrixTopNSourceAddress | x | x | x |
alMatrixTopNDestAddress | x | x | x |
alMatrixTopNAppProtocolDirLocalIndex | x | x | x |
alMatrixTopNPktRate | x | x | x |
alMatrixTopNReversePktRate | x | x | x |
alMatrixTopNOctetRate | x | x | x |
alMatrixTopNReverseOctetRate | x | x | x |
---------------------------------------------------
usrHistoryControlObjects | x | x | x |
usrHistoryControlBucketsRequested | x | x | x |
usrHistoryControlBucketsGranted | x | x | x |
usrHistoryControlInterval | x | x | x |
usrHistoryControlOwner | x | x | x |
usrHistoryControlStatus | x | x | x |
usrHistoryObjectVariable | x | x | x |
usrHistoryObjectSampleType | x | x | x |
usrHistoryIntervalStart | x | x | x |
usrHistoryIntervalEnd | x | x | x |
usrHistoryAbsValue | x | x | x |
usrHistoryValStatus | x | x | x |
---------------------------------------------------
probeCapabilities | x | a | x |
probeSoftwareRev | x | x | x |
probeHardwareRev | x | | |
probeDateTime | x | x | r |
probeResetControl | | x | r |
probeDownloadFile | | x | |
probeDownloadTFTPServer | | x | |
probeDownloadAction | | x | |
probeDownloadStatus | | x | |
---------------------------------------------------
serialMode | | | |
serialProtocol | | | |
serialTimeout | | | |
serialModemInitString | | | |
serialModemHangUpString | | | |
serialModemConnectResp | | | |
serialModemNoConnectResp | | | |
serialDialoutTimeout | | | |
serialStatus | | | |
serialConnectDestIpAddress | | | |
serialConnectType | | | |
serialConnectDialString | | | |
serialConnectSwitchConnectSeq | | | |
serialConnectSwitchDisconnectSeq | | | |
serialConnectSwitchResetSeq | | | |
serialConnectOwner | | | |
serialConnectStatus | | | |
---------------------------------------------------
netConfigIPAddress | | | |
netConfigSubnetMask | | | |
netConfigStatus | | | |
netDefaultGateway | | | x |
---------------------------------------------------
trapDestCommunity | | x | x |
trapDestProtocol | | x | x |
trapDestAddress | | x | x |
trapDestOwner | | x | x |
trapDestStatus | | x | x |
---------------------------------------------------
etherStatsDroppedFrames | | x | x |
etherStatsCreateTime | | x | x |
historyControlDroppedFrames | | x | x |
hostControlDroppedFrames | | x | x |
hostControlCreateTime | | x | x |
matrixControlDroppedFrames | | x | x |
matrixControlCreateTime | | x | x |
channelDroppedFrames | | x | x |
channelCreateTime | | x | x |
filterProtocolDirDataLocalIndex | | x | x |
filterProtocolDirLocalIndex | | x | x |
---------------------------------------------------
tokenRingMLStatsDroppedFrames | | x | |
tokenRingMLStatsCreateTime | | x | |
tokenRingPStatsDroppedFrames | | x | |
tokenRingPStatsCreateTime | | x | |
ringStationControlDroppedFrames | | x | |
ringStationControlCreateTime | | x | |
sourceRoutingStatsDroppedFrames | | x | |
sourceRoutingStatsCreateTime | | x | |
---------------------------------------------------
follow the TimeFilter specification | | x | |
relax the TimeFilter specification | x | | |
both, configurable | | | x |
---------------------------------------------------