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 Force10 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 S4810 platform.

dcb-enable

Enable data center bridging.

S4810

Syntax

dcb enable

To disable DCB, use the no dcb enable command.

Defaults none

Command Modes CONFIGURATION

Command History

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:

• Apply the dcb-input policy command with the no pfc-mode command on to

all the interfaces.

• Disable flow-control on all of the interfaces.

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