The transmit mode used to send the packets:
'other'
The rule used to send the packets is unknown.
'periodic'
Packets are sent periodically at
etsysSrvcLvlNetMeasureTxPacketRate rate.
'poisson'
Packets are sent using a Poisson law, the median is the value
of etsysSrvcLvlNetMeasureMedOrIntBurstSize, the deviation is
etsysSrvcLvlNetMeasureDevtnOrBurstSize.
'multiburst'
Packets are sent bursty at etsysSrvcLvlNetMeasureTxPacketRate.
The size of the burst is made of
etsysSrvcLvlNetMeasureDevtnOrBurstSize packets.