Service Manual

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.

The Dell Networking OS commands for data center bridging features include 802.1Qbb priority-based ow 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-buer-size

• dcb-buer-threshold

• priority

• qos-policy-buer

• dcb-policy buer-threshold (Interface Conguration)

• dcb-policy dcb-buer-threshold (Global Conguration)

• show qos dcb-buer-threshold

• dcb pfc-total-buer-size

• show running-cong dcb-buer-threshold

• service-class buer shared-threshold-weight

• dcb pfc-queues

• dcb {ets | pfc} enable

DCB Command

The following DCB command is supported on the Dell Networking OS.

472 Data Center Bridging (DCB)