Configuring The Total Shared-Area Ratio; Setting The Maximum Shared-Area Ratio For A Queue - HP FlexFabric 5700 series Configuration Manual

Configuring the total shared-area ratio

Each type of resources of a buffer, packet or cell, has a fixed size. After you set the total shared-area ratio
for a type of resources, the rest is automatically assigned to the fixed area.
To configure the total shared-area ratio:
Step
1. Enter system view.
2. Configure the total
shared-area ratio.

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 queue. The unconfigured queues use the default setting.
The actual maximum shared-area ratio for each queue is 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
1. Enter system view.
2. Set the maximum shared-area
ratio for a queue.
For the maximum shared-area ratio for a queue, the percentage values 0 to 100 are divided into 10
ranges. Table 12
Table 12 Mapping between values of
ratio-value
Value of
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
87 to 100
Command
system-view
buffer egress [ slot slot-number ] cell
total-shared ratio ratio-value
Command
system-view
buffer egress [ slot slot-number ] cell queue
queue-id shared ratio ratio-value
shows the effective values that correspond to the configured values of ratio-value.
ratio-value
and effective values
Effective value
1
3
6
11
20
33
50
67
80
89
93
Remarks
N/A
By default, the total
shared-area ratio is 84% of
the buffer.
Remarks
N/A
The default setting is 33%
for each queue.