Users Guide

Table Of Contents
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 EMC 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 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
DCB Command
The following DCB command is supported on the Dell EMC Networking OS.
dcb-enable
Enable data center bridging.
Syntax
dcb enable[pfc-queues 14]
To disable DCB, use the no dcb enable command.
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