Users Guide

pfc priority 3 buffer-size 50
!
dcb-buffer-threshold test2
pfc priority 0 buffer-size 80 pause-threshold 50
!
dcb-buffer-threshold test3
pfc priority 0 buffer-size 80 pause-threshold 60 resume-threshold 30
On interface on which PFC is enabled:
Show interface tengigabitethernet 1/1 pfc buffer-threshold
---------------------------------------------------------------------------------------------
Queue# Lossless Buffer-size Pause-threshold Resume-offset Shared threshold
(KB) (KB) (KB) weight
---------------------------------------------------------------------------------------------
0 No - - - -
1 No - - - -
2 Yes - 20 - 9
3 Yes 52 25 15 0
4 Yes - 45 25 5
5 No - - - -
6 No - - - -
7 No - - - -
- Denotes dynamic buffering is enabled in respective queues
On interface in which PFC is not enabled:
Dell#show interface tengigabitethernet 1/20 pfc buffer-threshold
The following table describes the output elds displayed for the show interface pfc buffer-threshold command:
Field
Description
queue Number of the queue
lossless Whether the queue is a lossy or lossless queue for which buer
threshold is congured
buer-size Ingress buer size
pause-threshold-value Buer limit at which the port sends the pause to peer in KB.
resume-threshold-value Buer oset limit at which the port resumes the peer in KB.
shared threshold weight Weightage of the priorities on the shared buer size in the
system.
dcb pfc-queues
Congure the number of PFC queues. This utility is supported on the and platforms.
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
Data Center Bridging (DCB)
509