Dell Networking S6000 Uživatelský manuál stáhnout pdf (Strana 249)

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dcb-policy input stack-unit {all | stack-unit-id} stack-ports all dcb-input-

policy-name

Entering this command removes all DCB input policies applied to stacked ports.

A dcb-policy input stack-unit all command overwrites any previous dcb-policy input

stack-unit

stack-unit-id configurations. Similarly, a dcb-policy input stack-unit stack-

unit-id command overwrites any previous dcb-policy input stack-unit all configuration.

Entering the no dcb-policy input stack-unit all command removes all DCB input policies

applied to stacked ports and resets PFC to its default settings. The

no dcb-policy input stack-

unit stack-unit-id command removes only the DCB input policy applied to the specified switch.

Applying DCB Policies with an ETS Configuration

You can apply a DCB output policy with ETS configuration to all stacked ports in a switch stack or an

individual stacked switch. In addition, you can apply different DCB output policies to different stack units.

• Apply the specified DCB output policy on all ports of the switch stack or a stacked switch.

CONFIGURATION mode

dcb-policy output stack-unit {all | stack-unit-id} stack-ports all dcb-

output-policy-name

Entering this command removes all DCB input policies applied to stacked ports.

A dcb-policy output stack-unit all command overwrites any previous dcb-policy output

stack-unit

stack-unit-id configurations. Similarly, a dcb-policy output stack-unit stack-

unit-id command overwrites any previous dcb-policy output stack-unit all configuration.

Entering the no dcb-policy output stack-unit all command removes all DCB output policies

applied to stacked ports. The

no dcb-policy output stack-unit stack-unit-id command

removes only the DCB output policy applied to the specified switch.

Configure a DCBx Operation

DCB devices use data center bridging exchange protocol (DCBx) to exchange configuration information

with directly connected peers using the link layer discovery protocol (LLDP) protocol.

DCBx can detect the misconfiguration of a peer DCB device, and optionally, configure peer DCB devices

with DCB feature settings to ensure consistent operation in a data center network.

DCBx is a prerequisite for using DCB features, such as priority-based flow control (PFC) and enhanced

traffic selection (ETS), to exchange link-level configurations in a converged Ethernet environment. DCBx

is also deployed in topologies that support lossless operation for FCoE or iSCSI traffic. In these scenarios,

all network devices are DCBx-enabled (DCBx is enabled end-to-end). For more information about how

these features are implemented and used, refer to:

• Configure Enhanced Transmission Selection

DCBx supports the following versions: CIN, CEE, and IEEE2.5.

Prerequisite: For DCBx, enable LLDP on all DCB devices.

Data Center Bridging (DCB)

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