docsIf31CmtsUsOfdmaChanUtilization

The calculated and truncated utilization for this physical
upstream channel, accurate as of the most recent
docsIfCmtsChannelUtilizationInterval.
              
The upstream channel utilization is expressed as a percentage
of minislots utilized on the physical channel, regardless of
burst type.
              
The utilization calculation can be expressed by the
following equation:
              
Utilization = MinislotsUtilized/MinislotsAllocated * 100%
              
For an Initial Maintenance region, the minislots for the
complete region are considered utilized if the CMTS received
an upstream burst within the region from any CM on the physical
channel. For contention REQ and REQ/DATA regions, the minislots
for a transmission opportunity within the region are considered
utilized if the CMTS received an upstream burst within the
opportunity from any CM on the physical channel. For all other
regions, utilized minislots are those in which the CMTS granted
bandwidth to any unicast SID on the physical channel.
              
For an upstream interface that has multiple logical upstream
channels enabled, the utilization index is a weighted sum of
utilization indices for the logical channels. The weight for
each utilization index is the percentage of upstream mini-slots
allocated for the corresponding logical channel.
              
Example:
If 75% of bandwidth is allocated to the first logical channel
and 25% to the second, and the utilization for each are 60 and 40,
respectively, the utilization for the upstream physical channel is
(60 * 0.75) + (40 * 0.25) = 55. This figure applies to the most
recent utilization interval.

MIB

DOCS-IF31-MIB

OID

.1.3.6.1.4.1.4491.2.1.28.1.23.1.22

Type

column

Access

readonly

Status

current

Units

percent

Parent

docsIf31CmtsUsOfdmaChanEntry

Groups

1