Reference Guide

Data Center Bridging | 89

Data Center Bridging

Overview

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. DCB features are auto-configured in standalone mode and supported

in stacking mode.

The Dell Networking operating system (FTOS) commands for DCB features include 802.1Qbb

priority-based flow control (PFC), 802.1Qaz enhanced transmission selection (ETS), and the data

center bridging exchange (DCBx) protocol.

Command Line Interface (CLI) commands for individual DCB features are as follows:

DCB Command

• dcb enable auto-detect on-next-reload

• dcb-input

• dcb-policy input

• dcb-policy input stack-unit stack-ports all

PFC Commands

• clear pfc counters

• show interface pfc

• show interface pfc statistics

• show stack-unit stack-ports pfc details

• pfc no-drop queues

ETS Commands

• clear ets counters

• show interface ets

• show stack-unit stack-ports ets details

• qos-policy-output ets

• priority-group

• ets mode on