HP 6125XLG R2306-HP 6125XLG Blade Switch ACL and QoS Command Reference - Page 103

buffer total-shared, Usage guidelines, Examples, Syntax, Default

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cell: Specifies cell resources. queue-id: Specifies a queue by its number in the range of 0 to 7. ratio ratio: Specifies the maximum shared-area space ratio, in percentage. Usage guidelines By default, all queues have the same maximum ratio of the shared area. You can set the shared-area ratio for a queue. The other queues use the default setting. The final shared-area ratio for each queue is determined by the chip based on the buffer queue shared command configuration and the number of packets to be sent. For the maximum shared-area ratio for a queue, the percentage values 0 to 100 are divided into 10 ranges. Table 37 shows the effective values that correspond to the values of ratio-value. Table 37 Mapping between values of ratio-value and effective values Value of ratio-value 0 to 1 2 to 3 4 to 7 8 to 16 17 to 29 30 to 42 43 to 60 61 to 76 77 to 86 89 to 100 Effective value 1 3 6 11 20 33 50 67 80 89 Examples # Configure queue 0 to use up to 5% shared-area space of cell resources in the egress buffer of IRF member device 2. system-view [Sysname] buffer egress slot 2 cell queue 0 shared ratio 5 buffer total-shared Use buffer total-shared to set the shared area ratio. Use undo buffer total-shared to restore the default setting. Syntax buffer egress [ slot slot-number ] cell total-shared ratio ratio-value undo buffer egress [ slot slot-number ] cell total-shared Default The shared area ratio is 100% of the buffer. 98

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98
cell
: Specifies cell resources.
queue-id
: Specifies a queue by its number in the range of 0 to 7.
ratio
ratio
: Specifies the maximum shared-area space ratio, in percentage.
Usage guidelines
By default, all queues have the same maximum ratio of the shared area. You can set the shared-area ratio
for a queue. The other queues use the default setting. The final shared-area ratio for each queue is
determined by the chip based on the
buffer queue shared
command configuration and the number of
packets to be sent.
For the maximum shared-area ratio for a queue, the percentage values 0 to 100 are divided into 10
ranges.
Table 37
shows the effective values that correspond to the values of
ratio-value
.
Table 37
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
Examples
# Configure queue 0 to use up to 5% shared-area space of cell resources in the egress buffer of IRF
member device 2.
<Sysname> system-view
[Sysname] buffer egress slot 2 cell queue 0 shared ratio 5
buffer total-shared
Use
buffer total-shared
to set the shared area ratio.
Use
undo buffer total-shared
to restore the default setting.
Syntax
buffer egress
[
slot
slot-number
]
cell total-shared ratio
ratio-value
undo buffer egress
[
slot
slot-number
]
cell total-shared
Default
The shared area ratio is 100% of the buffer.