Users Guide

Version Description
9.3(0.0) Introduced on the S4810, S4820T, and S6000 platforms.
Usage Information
Congure the maximum shared buer available for PFC trac. You can choose to increase or decrease the shared
buer that is allocated in the system by default. Congure the shared buer size less than the total PFC buer
size. If the shared buer size is more than the total PFC buer size value, the conguration is not saved and a
system logging message is generated.
Dell(conf)#dcb pfc-shared-buffer-size 3000
% Error: Shared buffer size cannot be greater than the the available buffer in
the system
Dell(conf)#
Enter a smaller value for the shared buer size or increase the total buer size appropriately by using the dcb
pfc-total- buffer-size command.
Example
Dell(conf)#dcb pfc-shared-buffer-size 800
dcb pfc-headroom-buer-size
Congure a shared head room pool limit, which is the threshold value for the shared head room pool size.
Syntax
dcb pfc-headroom-buffer-size buffer-size
To undo the shared head room pool limit conguration, use the no dcb pfc-headroom-buffer-size
buffer-size command.
Parameters
buer-size Enter the maximum buer value that you want to allocate for the shared head room pool.
Each lossless Priority or Priority Group can use up to the peak head room congured for
that particular priority from the shared head room congured. The range is from 0 to
3399.
Defaults 1040 KB.
Command Modes CONFIGURATION
Command History
This guide is platform-specic. For command information about other platforms, see the relevant Dell Networking
OS Command Line Reference Guide.
Version Description
9.11(2.0) Introduced on the Z9100-ON and S6100-ON.
Example
dcb-buer-threshold
Congure the prole name for the DCB buer threshold.
Syntax
dcb buffer—threshold
Parameters
prole-name Enter the name of the prole, which can be a string of up to 32 characters in length.
Data Center Bridging (DCB) 501