Troubleshooting guide

11-38
Cisco Broadband Local Integrated Services Solution Troubleshooting Guide
OL-5169-01
Chapter 11 Element Management and MIBs
Cisco uBR7246vxr MIBs
docsIfDownChannelPower At the CMTS, the operational transmit power. At the CM, the
received power level. May be set to zero at the CM if power level
measurement is not supported.
If the interface is down, this object either returns the configured
value (CMTS), the most current value (CM) or the value of 0. See
DOCSIS Radio Frequency Interface Specification, Table 4-12
and Table 4-13. for recommended and required power levels.
docsIfUpChannelId The CMTS identification of the upstream channel.
docsIfUpChannelFrequency The center of the frequency band associated with this upstream
channel. This object returns 0 if the frequency is undefined or
unknown. Minimum permitted upstream frequency is 5,000,000
Hz for current technology. See the associated conformance object
for write conditions and limitations.
docsIfUpChannelWidth The bandwidth of this upstream channel. This object returns 0 if
the channel width is undefined or unknown. Minimum permitted
channel width is 200,000 Hz currently. See the associated
conformance object for write conditions and limitations.
docsIfUpChannelModulation
Profile
An entry identical to the docsIfModIndex in the
docsIfCmtsModulationTable that describes this channel.
This channel is further instantiated there by a grouping of interval
usage codes which together fully describe the channel
modulation. This object returns 0 if the
docsIfCmtsModulationTable entry does not exist or
docsIfCmtsModulationTable is empty. See the associated
conformance object for write conditions and limitations.
docsIfUpChannelSlotSize The number of 6.25 microsecond ticks in each upstream mini-
slot. Returns zero if the value is undefined or unknown. See the
associated conformance object for write conditions and
limitations.
docsIfUpChannelTxTimingOffset A measure of the current round trip time at the CM, or the
maximum round trip time seen by the CMTS. Used for timing of
CM upstream transmissions to ensure synchronized arrivals at the
CMTS. Units are in terms of (6.25 microseconds/64).
docsIfUpChannelRangingBackoff
Start
The initial random backoff window to use when retrying Ranging
Requests. Expressed as a power of 2. A value of 16 at the CMTS
indicates that a proprietary adaptive retry mechanism is to be
used. See the associated conformance object for write conditions
and limitations.
docsIfUpChannelRangingBackoff
End
The final random backoff window to use when retrying Ranging
Requests. Expressed as a power of 2. A value of 16 at the CMTS
indicates that a proprietary adaptive retry mechanism is to be
used. See the associated conformance object for write conditions
and limitations.
Table 11-4 DOCS-IF-MIB.my Objects (continued)
Object Description