This attribute indicates the Early Packet Discard (EPD) offset which
is currently in use for this service category. The EPD offset is used
to derive the EPD thresholds for each CC level.
Any connection under this service category which requires the
txPacketWiseDiscard feature must specify a transmit queue limit
which is at least 5.71 times this offset. This ensures that the derived
Epd threshold will never be less than 17.5 % of the transmit queue
limit. If this is not done, txPacketWiseDiscard for the connection
will be automatically disabled.
The value of this EPD offset is specified under the lp/x eng arc aqm
ov component.