Reference Guide

Data Center Bridging (DCB)

Data center bridging (DCB) refers to a set of IEEE Ethernet enhancements that provide data centers with a single, robust,

converged network to support multiple traffic types, including local area network (LAN), server, and storage traffic.

The Dell Networking operating software (FTOS) commands for data center bridging features include 802.1Qbb priority-

based flow control (PFC), 802.1Qaz enhanced transmission selection (ETS), and the data center bridging exchange

(DCBX) protocol.

This chapter includes the following sections:

• DCB Command

• PFC Commands

• ETS Commands

• DCBX Commands

DCB Command

The following DCB command is supported on the S4820T platform.

dcb-enable

Enable data center bridging.

S4820T

Syntax

dcb enable

To disable DCB, use the no dcb enable command.

Defaults none

Command Modes CONFIGURATION

Command History

This guide is platform-specific. For command information about other platforms, refer to the

relevant

FTOS Command Line Reference Guide

The following is a list of the FTOS version history for this command.

Version 8.3.19.0 Introduced on the S4820T.

Version 8.3.12.0 Introduced on the S4810.

Version 8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.

Usage

Information

By default, iSCSI is enabled on the unit and flowcontrol is enabled on all of the interfaces or if

link-level flow control is enabled on one or more interfaces. To enable DCB, do one of the

following:

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