ZyXEL Communications XMG1915 Series User Manual page 237

Table 124 SWITCHING > QoS > Queuing Method (continued)
LABEL DESCRIPTION
Method Select SPQ (Strictly Priority Queuing), WFQ (Weighted Fair Queuing) or WRR (Weighted Round Robin).
Strictly Priority Queuing services queues based on priority only. When the highest priority queue
empties, traffic on the next highest-priority queue begins. Q7 has the highest priority and Q0 the
lowest.
Weighted Fair Queuing is used to guarantee each queue's minimum bandwidth based on their
bandwidth portion (weight) (the number you configure in the Weight field). Queues with larger
weights get more guaranteed bandwidth than queues with smaller weights.
Weighted Round Robin Scheduling services queues on a rotating basis based on their queue weight
(the number you configure in the queue Weight field). Queues with larger weights get more service
than queues with smaller weights.
Weight When you select WFQ or WRR, enter the queue weight here. Bandwidth is divided across the different
traffic queues according to their weights.
Hybrid-SPQ This field is applicable only when you select WFQ or WRR.
Lowest-
Select a queue (Q0 to Q7) to have the Switch use SPQ to service the subsequent queues after and
Queue
including the specified queue for the port. For example, if you select Q5, the Switch services traffic on
Q5, Q6 and Q7 using SPQ.
Select None to always use WFQ or WRR for the port.
Apply Click Apply to save your changes to the Switch's run-time memory. The Switch loses these changes if
it is turned off or loses power, so use the Save link on the top navigation panel to save your changes to
the non-volatile memory when you are done configuring.
Cancel Click Cancel to begin configuring this screen afresh.
Chapter 42 Queuing Method
XMG1915 Series User's Guide
237