ZyXEL Communications GS-3012F Series - Manual (Page 146)

Chapter 20 Queuing Method
GS-3012/GS-3012F User’s Guide
146
20.1.2 Weighted Round Robin Scheduling (WRR)
Round Robin Scheduling services queues on a rotating basis and is activated only when a port
has more traffic than it can handle. A queue is given an amount of bandwidth irrespective of
the incoming traffic on that port. This queue then moves to the back of the list. The next queue
is given an equal amount of bandwidth, and then moves to the end of the list; and so on,
depending on the number of queues being used. This works in a looping fashion until a queue
is empty.
Weighted Round Robin Scheduling (WRR) uses the same algorithm as round robin
scheduling, but services queues based on their priority and queue weight (the number you
configure in the Weight field – see
Figure 71 on page 147 ) rather than a fixed amount of
bandwidth. WRR is activated only when a port has more traffic than it can handle. Queues
with larger weights get more service than queues with smaller weights. This queuing
mechanism is highly efficient in that it divides any available bandwidth across the different
traffic queues and returns to queues that have not yet emptied.
20.2 Configuring Queuing
Click Queuing Method under Advanced Application in the navigation panel.