The weight associated with the upstream traffic on this service relating to
buffering capacity. Upstream traffic is defined as traffic that enters the
system from an access port and exits the system on a trunk. 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 upstream traffic depends on how many services
share the buffer pool associated with this service.