D-Link DES-1228 Reference Manual page 109

show scheduling
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To display the current scheduling configuration:
DES-1228/ME:4#show scheduling
Command: show scheduling
QOS Output Scheduling
Class ID Weight
-------- -----------
Class-0 1
Class-1 2
Class-2 4
Class-3 8
DES-1228/ME:4#
config scheduling_mechanism
Purpose
Syntax
Description
Parameters
Restrictions
Example usage:
To configure the traffic scheduling mechanism for each QoS queue:
DES-1228/ME Layer 2 Metro Ethernet Switch CLI Reference Manual
Used to display the currently configured traffic scheduling on the Switch.
show scheduling
The show scheduling command will display the current traffic scheduling mechanisms in
use on the Switch.
None.
None.
Used to configure the scheduling mechanism for the QoS function
config scheduling_mechanism [strict | weight_fair]
The config scheduling_mechanism command allows the user to select between a
weight fair and a Strict mechanism for emptying the priority classes of service of the QoS
function. The Switch contains seven hardware priority classes of service. Incoming
packets must be mapped to one of these seven hardware priority classes of service. This
command is used to specify the rotation by which these seven hardware priority classes of
service are emptied.
The Switch's default is to empty the seven priority classes of service in order − from the
highest priority class of service (queue 6) to the lowest priority class of service (queue 0).
Each queue will transmit all of the packets in its buffer before allowing the next lower
priority class of service to transmit its packets. Lower classes of service will be pre-empted
from emptying its queue if a packet is received on a higher class of service. The packet
that was received on the higher class of service will transmit its packet before allowing the
lower class to resume clearing its queue.
strict – Entering the strict parameter indicates that the highest class of service is the first to
be processed. That is, the highest class of service should finish emptying before the
others begin.
weight_fair – Entering the weight fair parameter indicates that the priority classes of
service will empty packets in a fair weighted order. That is to say that they will be emptied
in an even distribution.
Only Administrator-level users can issue this command.
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