Service Manual

Command History
Version Description
9.9(0.0) Introduced on the Z9500, S4810, S4820T, S5000, and S4048–ON.
9.7(0.0) Introduced on the S6000-ON.
9.3(0.0) Introduced on the S6000.
Usage Information
You can congure all the data queues. You can congure queues 0-7.
The following table describes the mapping between the threshold weight of the shared buer on the queue.
It also shows the percentage of the available shared buer used by the queues for each of the
corresponding threshold weights of the shared buer:
shared-
threshold-
weight on the
queue
% of available shared buer that can be consumed by the queue
0 No dynamic sharing; shared buer = 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-1/8/1)#Service-class buffer shared-threshold-weight queue5
4 queue7 6
dcb pfc-queues
Congure 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 congured will depend on the buer.
Default The default number of PFC queues in the system is 2 for S4810 and 1 for S6000 platforms.
Command Modes CONFIGURATION mode
472
Data Center Bridging (DCB)