| OID symbolic | OID numeric | Type | Access | Description |
|---|
| rdnCableSpectrum | 1.3.6.1.4.1.4981.6 | | | This is the MIB Module for Cable Spectrum Management for
MCNS compliant Cable Modem Termination Systems (CMTS). |
| rdnCableSpectrumObjects | 1.3.6.1.4.1.4981.6.1 | | | |
| rdnFlapObjects | 1.3.6.1.4.1.4981.6.1.1 | | | |
| rdnFlapCmCmtsStatusTable | 1.3.6.1.4.1.4981.6.1.1.1 | | not-accessible | This table keeps the status of the flap modems for per CMTS. |
| rdnFlapCmCmtsStatusEntry | 1.3.6.1.4.1.4981.6.1.1.1.1 | | not-accessible | List of attributes for an entry in the rdnFlapCmCmtsStatusTable. |
| INT flapCmCmtsIfIndex | 1.3.6.1.4.1.4981.6.1.1.1.1.1 | INTEGER | not-accessible | The CMTS Interface Index. |
| I32 flapListMaxSize | 1.3.6.1.4.1.4981.6.1.1.1.1.2 | Integer32 | read-write | The maximum number of flap modems.
The user could configure this number according to the number of
downstreams and the number of modem line cards in the CMTS.
The number can range from 1 to 8191. The default value is 100.
When the number of modems exceeds the max flap list size,
the additional modems are ignored. |
| G32 flapListCurrentSize | 1.3.6.1.4.1.4981.6.1.1.1.1.3 | Gauge32 | read-only | The current number of modems in the flap list. Its value
will be less than or equal to flapListMaxSize. |
| I32 flapAgingOutTime | 1.3.6.1.4.1.4981.6.1.1.1.1.4 | Integer32 | read-write | The age out time in minutes for modems in the flap table. The number
of minutes range from 1 to 86400. The default value is 1440. |
| I32 flapInsertionTime | 1.3.6.1.4.1.4981.6.1.1.1.1.5 | Integer32 | read-write | The interval of time that begins when the cable modem initially
ranges, reboots, and ends when it starts initial maintenance again.
If the interval of time is less than what is specified in
flapInsertionTime, the flapCmInsertionFails and cmFlapCounts
will increment.
The valid range is from 1 to 86400 seconds. The default value is 60. |
| I32 flapMissThreshold | 1.3.6.1.4.1.4981.6.1.1.1.1.6 | Integer32 | read-write | Specifies the maximum threshold for the number of consecutive miss
counts during a polling cycle. If the flap miss counts goes over
this threshold, the modem will be added into the flap list.
Polling is maintained between the CMTS and the cable modem
every 10 seconds. The flapMissThreshold specifies the maximum
number of consecutive missed counts during one station maintenance
poll interval. If there are more than 16 consecutive miss counts
during one polling cycle, the modem will de-insert and attempt to
range again.
The value ranges from 1 to 12 consecutive counts.
The default value is 6. |
| I32 flapPowerAdjThreshold | 1.3.6.1.4.1.4981.6.1.1.1.1.7 | Integer32 | read-write | The power adjustment threshold for a CM
to raise and lower it's transmit power during
normal operation.
When a modem's power adjustment goes above or below
the flapPowerAdjThreshold the CM will be added into
the flap list. The flapCmPowerAdjustments and cmFlapCounts
will be incremented as well.
flapPowerAdjThreshold values of 2 dB and below are low
enough to continuously increment the flapCmPowerAdjustments
under normal conditions.
The values range from 1 to 10. The default is 2. |
| INT flapListPercentageThreshold | 1.3.6.1.4.1.4981.6.1.1.1.1.8 | INTEGER | read-write | The percentage CM miss threshold.
If CM miss percentage goes over this threshold and
flapListTrapEnable is set, a flap list trap will
be send out to notify this event |
| INT flapListTrapEnable | 1.3.6.1.4.1.4981.6.1.1.1.1.9 | INTEGER | read-write | This object controls flap list trap. If its value is set to
enabled(1), a trap will be sent out when the CM miss
percentage goes over the flapListPercentageThreshold;
Otherwise no flap list trap will be sent out.
By default, this object has the value enabled(1). |
| rdnFlapCmTable | 1.3.6.1.4.1.4981.6.1.1.2 | | not-accessible | This table keeps the records of modem state changes.
An entry can be deleted from the table but can not be
added to the table. |
| rdnFlapCmEntry | 1.3.6.1.4.1.4981.6.1.1.2.1 | | not-accessible | List of attributes for an entry in the rdnFlapTable. |
| NUM flapCmIndex | 1.3.6.1.4.1.4981.6.1.1.2.1.1 | InterfaceIndex | not-accessible | Index for Cable Modem. |
| INT cmtsIfIndex | 1.3.6.1.4.1.4981.6.1.1.2.1.2 | INTEGER | read-only | The CMTS Interface Index. |
| MAC flapCmMacAddress | 1.3.6.1.4.1.4981.6.1.1.2.1.3 | MacAddress | read-only | MAC address of the Cable Modem's Cable interface. Identifies
a flap-list entry for a flapping Cable Modem. |
| NUM flapCmUpstreamIfIndex | 1.3.6.1.4.1.4981.6.1.1.2.1.4 | InterfaceIndex | read-only | The ifIndex of the Cable upstream interface whose ifType is
docsCableUpstream(129). The CMTS detects a flapping Cable
Modem from its Cable upstream interface. |
| NUM flapCmDownstreamIfIndex | 1.3.6.1.4.1.4981.6.1.1.2.1.5 | InterfaceIndex | read-only | The ifIndex of the Cable downstream interface whose ifType is
docsCableDownstream(128). |
| C32 flapCmInsertionFailsEx | 1.3.6.1.4.1.4981.6.1.1.2.1.6 | Counter32 | read-only | When the Cable Modem initially ranges, reboots and initially
ranges again within the specified insertion time, this counter
will increment.
The cmFlapCounts increment along with this counter. |
| C32 flapCmHits | 1.3.6.1.4.1.4981.6.1.1.2.1.7 | Counter32 | read-only | The number of times the CMTS receives the Ranging request
from the Cable Modem. |
| C32 flapCmMisses | 1.3.6.1.4.1.4981.6.1.1.2.1.8 | Counter32 | read-only | The number of times the CMTS misses the Ranging request
from the Cable Modem. The CMTS can check up to 16 consecutive
times for a ranging request message during one polling cycle.
Misses are not desirable since this is usually an
indication of a return path problem; however,
having a small number of misses is normal.
Ideally, the Hit should be much greater than the Miss counts. |
| C32 flapCmPowerAdjustments | 1.3.6.1.4.1.4981.6.1.1.2.1.9 | Counter32 | read-only | When the power adjustment changed above or below the
power adjustment threshold this counter will increment.
The Flap Count (cmFlapCounts) will increment when this
counter increments. |
| C32 cmFlapCounts | 1.3.6.1.4.1.4981.6.1.1.2.1.10 | Counter32 | read-only | The total number of times a CM flaps
Under following three situations, this counter
will increase:
(1) When flapCmInsertionFails is increased the flap counts
will increase.
(2) When the CMTS receives the number of consecutive misses
specified in the flapMissThreshold, the flap counts
will increase.
(3) When flapPowerAdjustments is increased the flap counts
will increase. |
| DAT cmLastFlapTime | 1.3.6.1.4.1.4981.6.1.1.2.1.11 | DateAndTime | read-only | The last time stamp cm flaps |
| DAT cmFlapCreateTime | 1.3.6.1.4.1.4981.6.1.1.2.1.12 | DateAndTime | read-only | The time stamp when new flap CM is added to the table. |
| ROW cmFlapRowStatus | 1.3.6.1.4.1.4981.6.1.1.2.1.13 | RowStatus | read-write | Controls and reflects the status of rows in this table.
When a new flap cable modem is detected, and does
not exist in flap list and
flapListCurrentSize is less than flapListMaxSize,
an entry will be created in this table.
The instance of this object will be set to active(1).
All flapping modems have the status of active(1).
Active entries are removed from the table if they are aged out.
The age out time is defined in flapAgingOutTime
When a row is set to destroy(6), it will remove the entry
immediately.
To prevent an entry from being aged out, the entry should be
set to notInService(2). The entry will remain in the table
until this instance is set to destroy.
The user is allowed set an entry from active to notInService
or from notInService to destroy
A user is not allowed to change a notInService entry to active.
createAndGo(4) and createAndWait(5) are not supported. |
| NTF flapListTrap | 1.3.6.1.4.1.4981.6.1.1.3 | | | a flap list trap signifies that SNMPv2 entity,
acting in an agent role, has detected that the
percentage of flap cm for one of the cmts board
has gone over the flapListPercentageThreshold |
| INT flapTrapType | 1.3.6.1.4.1.4981.6.1.1.4 | INTEGER | read-only | Reason for flapping
power - The power threshold was exceeded.
ranging - Missing ranging requests went beyond threshold
insertion - Modem re-ranged within insertion time threshold.
This is a place holder for the reason parameter for the modem to go
into flap list. This should return ZERO when read. This just allows us
to include a flapping reason in the modem flap trap varbind. |
| NTF flapModemTrap | 1.3.6.1.4.1.4981.6.1.1.5 | | | This Trap will be sent whenever the modem goes into the
flapping list for some reason. 'flapCmMacAddress'
gives the Mac Address of the modem. 'flapTrapType' gives
the cause for the modem to go into the flap list. |
| rdnCableSpectrumNotificationPrefix | 1.3.6.1.4.1.4981.6.2 | | | |
| cableSpectrumMIBNotifications | 1.3.6.1.4.1.4981.6.2.0 | | | |
| rdnCableSpectrumConformance | 1.3.6.1.4.1.4981.6.3 | | | |
| rdnCableSpectrumCompliances | 1.3.6.1.4.1.4981.6.3.1 | | | |
| compliance | 1.3.6.1.4.1.4981.6.3.1.1 | | | The compliance statement for devices that implement MCNS
compliant Radio Frequency Interfaces and Spectrum Management
features. |
| rdnCableSpectrumGroups | 1.3.6.1.4.1.4981.6.3.2 | | | |
| rdnFlapGroup | 1.3.6.1.4.1.4981.6.3.2.1 | | | Group of objects implemented in Cable Modem Termination Systems
providing Flap List information. |
