Users Guide

Priorities:0 1 2 4 5 6 7
PG:1 TSA:ETS BW:50 PFC:ON
Priorities:3
dcb pfc-shared-buffer-size
Configure the maximum amount of shared buffer size for PFC packets in kilobytes.
Syntax
dcb pfc-shared—buffer—size KB
Parameters
KB Enter a number in the range of 0 to7787.
Default The default is 832KB.
Command Modes CONFIGURATION mode
Command History
This guide is platform-specific. For command information about other platforms, see
the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0) Introduced on the S4048-ON.
9.7(0.0) Introduced on the S6000-ON and Z9500.
9.6(0.0) Introduced on the S5000.
9.3(0.0) Introduced on the S4810, S4820T, and S6000 platforms.
Usage Information Configure the maximum shared buffer available for PFC traffic. You can choose to
increase or decrease the shared buffer that is allocated in the system by default.
Configure the shared buffer size less than the total PFC buffer size. If the buffer size and
DCB buffer threshold settings are applied on one or more ports, a validation is
performed to determine whether following condition is satisfied: If the shared buffer
size is more than the total PFC buffer size value, the configuration is not saved and a
system logging message is generated as follows:
Shared-pfc-buffer-size <= (Total-pfc-buffer-size — Σpfc priority <> buffer-size on each
port, priority).
Dell(conf)#dcb pfc-shared-buffer-size 2000 %ERROR: pfc shared
buffer size configured cannot accommodate existing buffer
requirement in the system.
Enter a smaller value for the shared buffer size or increase the total buffer size
appropriately by using the dcb pfc-total- buffer-size command.
Data Center Bridging (DCB) 642