The weight associated with the downstream traffic on this service relating to
buffering capacity. Downstream traffic is defined as traffic that enters the
system from a trunk and exits the system on an access port. A value of 1
provides the least amount of buffering capacity while a value of 10 provides
the most buffering capacity. This value is relative in that the number of
buffers actually assigned to the downstream traffic depends on how many services
share the buffer pool associated with this service.