Users 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 OS 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 section includes the following:

• DCB Command

• PFC Commands

• ETS Commands

• DCBX Commands

Topics:

• DCB Command

• PFC Commands

• ETS Commands

• DCBX Commands

• dcb-map

• priority-pgid

• pfc mode on

• priority-group bandwidth pfc

• dcb-map stack-unit all stack-ports all

• show qos dcb-map

• dcb pfc-shared-buffer-size

• dcb-buffer-threshold

• priority

• qos-policy-buffer

• dcb-policy buffer-threshold (Interface Configuration)

• dcb-policy dcb-buffer-threshold (Global Configuration)

• show qos dcb-buffer-threshold

• dcb pfc-total-buffer-size

• show running-config dcb-buffer-threshold

• service-class buffer shared-threshold-weight

• dcb pfc-queues

• dcb {ets | pfc} enable

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