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 trac types, including local area network (LAN), server, and storage trac. DCB features are auto-congured

in standalone mode.

The Dell Networking OS commands for DCB features include 802.1Qbb priority-based ow control (PFC), 802.1Qaz enhanced transmission

selection (ETS), and the data center bridging exchange (DCBX) protocol.

CLI commands for individual DCB features are as follows:

DCB command

• dcb enable auto-detect on-next-reload

• show qos dcb-map

PFC Commands

• clear pfc counters

• show interface pfc

• show interface pfc statistics

ETS Commands

• clear ets counters

• show interface ets

DCBX Commands

• dcbx version

• clear dcbx counters

• show dcb

• show interface dcbx detail

Topics:

• Fibre Channel over Ethernet for FC Flex IO Modules

• advertise dcbx-appln-tlv

• advertise dcbx-tlv

• bandwidth-percentage

• clear dcbx counters

• clear ets counters

• clear pfc counters

• dcb-enable

• dcb enable pfc-queues

• dcb enable auto-detect on-next-reload

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

• dcb pfc-shared-buer-size

• dcb pfc-total-buer-size

Data Center Bridging (DCB) 93