Users Guide

The following table describes the mapping between the threshold weight of the shared

buffer on the queue. It also shows the percentage of the available shared buffer used by

the queues for each of the corresponding threshold weights of the shared buffer:

shared-

threshold-

weight on the

queue

% of available shared buffer that can be consumed

by the queue

0 No dynamic sharing; shared buffer = 0.

1 0.77%

2 1.54%

3 3.03%

4 5.88%

5 11.11%

6 20%

7 33.33%

8 50%

9 66.67%

10 80%

11 88.89%

Example

Dell(conf-if-te-1/8)# Service-class buffer shared-threshold-

weight queue5 4 queue7 6

dcb pfc-queues

Configure the number of PFC queues.

Syntax

dcb pfc-queues value

Parameters

value Enter the number of PFC queues in the range of 0 through 4.

The number of ports supported based on lossless queues

configured will depend on the buffer.

Default The default number of PFC queues in the system is 2 for S4810 and 1 for S6000

platforms.

Command Modes CONFIGURATION mode

Data Center Bridging (DCB) 654