The maximum number of mini-slots that may be requested
for a single upstream transmission.
A value of zero means there is no limit.
MUST NOT be changed while this row is active.
This object has been deprecated and replaced by
docsIfQosProfMaxTransmitBurst, to fix a mismatch
of the units and value range with respect to the DOCSIS
Maximum Upstream Channel Transmit Burst Configuration
Setting.