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QoS
The GPLIMT/GPLIM Layer 2 QoS configuration is performed using the [Port]
[QoS] submenu.
QoS Parameter Description
Parameter
QoS Mode
Weight
Delay Bound/
Max Delay Time
High Priority
Levels
Description
Used to select the QoS mode.
- First Come First Service: Packets are transmitted according
to there incoming order.(QoS function not used)
- All High before Low: When a packet has a higher priority it
is transmitted prior to a packet with a lower priority. All lower
priority packets must wait until all the higher priority packets
are transmitted.
- Weighted Round Robin: This method is used to transmit
high priority packets and low priority packets at an
established rate (Weight). For example if the setting for High
Weight is '5' and the Low Weight to '2', then five high priority
packets are transmitted before two priority packets are
transmitted.
Used to set the High weight and Low weight ratio when the
method of 'Weighted Round Robin' is employed.
Used to set the time limit to prevent the low priority packets
from being delayed too much when the QoS mode is selected
as 'All High before Low' or 'Weighted Round Robin'. The unit
of 'Max Delay Time' is ms (1/1000 second) and the default is
255 ms. If a low priority packet is not switched even though the
established time is exceeded, the packet will be processed
preferentially.
There are 8 tags to indicate a High or Low priority. The Level
0~Level 7 boxes do not indicate the actual value of the priority.
The GPLIMT/GPLIM processes packets by separating them
into two Queues, 'High' and 'Low'.
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[Port]
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