CANOGA PERKINS 9145EMP NID Software Version 4.0 - Manual (Page 135)

9145EMP NID Software User’s Manual CoS Configuration
CoS Queues Configuration
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4. Scheduling The 9145EMP supports two scheduling modes: Strict Priority (SP) and
Weigh Fair Queuing (WFQ). All queues can be set to service packets using one of the
scheduling mode mentioned above with the exception of the LLQ. The LLQ is always set
by default to SP. To change the schedule scheme, type 5 for Queue 3, 11 for Queue 2, or
17 for Queue 1. Press the Space bar to select Strict Priority or Weighted Fair and then
press Enter. If shaping is enabled on a particular queue, the scheduling mode must be
configured to strict priority
NOTE: The scheduling algorithm is applied to each set of four queues associated with each
User Port. This means that, for example, Q1 associated with User 1 and Q1 associated with
User 2 will have the same priority. In this case, the queues are serviced in a round robin fashion.
5. Weight Queue 3, Queue 2 and Queue 1 require a weight parameter range between 0
and 1000. If WFQ is set as the scheduling method, a weigh need to be assigned to each
queue. The weight is proportional to how much bandwidth that queue will receive. The
weight value can be of any range between 0-1000.
To change the queue weight, type 6 for Queue 3, 12 for Queue 2, or 18 for Queue 1. Type
the new setting and press Enter.
NOTE: If you enter an invalid weight parameter, the message INVALID INPUT will appear at the
bottom of the screen.
6. Enable/Disable (ED) Drop Profile Every queue has two drop profiles associated with it.
(For more information about ED Drop Profiles, see “Early Detect Drop Profiles” on
page 121.)
To enable or disable ED drop profiles, type 7 or 8 for Queue 3, 13 or 14 for Queue 2, or 19
or 20 for Queue 1. Press the Space bar to change the setting and press Enter.
NOTE: Drop profiles and shapers are mutually exclusive. If shaping is enabled, you cannot
enable drop profiles, and vice versa.
7. Press Esc to return to the Class of Service Queue Configuration screen.