Setting the maximum shared-area ratio for a queue, Setting the fixed-area ratio for a queue – H3C Technologies H3C S6300 Series Switches User Manual
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Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Configure the shared-area
ratio.
buffer egress [ slot slot-number ] cell
total-shared ratio ratio-value
The default setting is 84%
of the buffer.
Setting the maximum shared-area ratio for a queue
By default, all queues have an equal share of the shared area. This task allows you to change the
maximum shared-area ratio for a specific queue. The other queues use the default setting.
The actual maximum shared-area ratio for each queue is finally determined by the chip based on your
configuration and the number of packets to be sent.
To set the maximum shared-area ratio for a queue:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Set the maximum shared-area
ratio for a queue.
buffer egress [ slot slot-number ] cell queue
queue-id shared ratio ratio-value
The default setting is 33%
for each queue.
For the maximum shared-area ratio for a queue, the percentage values 0 to 100 are divided into 10
ranges.
shows the effective values that correspond to the configured values of ratio-value.
Table 12 Mapping between values of
ratio-value and effective values
Value of
ratio-value Effective
value
0 to 1
1
2 to 3
3
4 to 7
6
8 to 16
11
17 to 29
20
30 to 42
33
43 to 60
50
61 to 76
67
77 to 86
80
89 to 100
89
Setting the fixed-area ratio for a queue
By default, all queues have an equal share of the fixed area. This task allows you to change the fixed-area
ratio for a specific queue. After you configure the fixed-area ratios for some queues, the other queues
each are assigned an equal share of the remaining part of the fixed area. The display buffer queue
command displays a rounded-off value for the assignment result. Therefore, the sum of the ratios for all
queues might be less than or greater than 100%.