Reference Guide

dcb-input
To apply pause or flow control for specified priorities using a configure delay time, create a DCB input policy.
S4820T
Syntax
dcb-input policy-name
To delete the DCB input policy, use the no dcb-input command.
Parameters
policy-name Maximum: 32 alphanumeric characters.
Defaults none
Command Modes CONFIGURATION
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.16.0 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
As soon as you apply a DCB policy with PFC enabled on an interface, DCBx starts exchanging
information with PFC-enabled peers. The IEEE802.1Qbb, CEE, and CIN versions of PFC TLV are
supported. DCBx also validates PFC configurations received in TLVs from peer devices.
By applying a DCB input policy with PFC enabled, you enable PFC operation on ingress port
traffic. To achieve complete lossless handling of traffic, also enable PFC on all DCB egress
ports or configure the dot1p priority-queue assignment of PFC priorities to lossless queues
(refer to pfc no-drop queues).
To remove a DCB input policy, including the PFC configuration it contains, enter the no dcb-
input
policy-name command in Interface Configuration mode.
Related
Commands
dcb-policy input — applies the input policy with the PFC configuration.
dcb-policy input
Apply the input policy with the PFC configuration to an ingress interface.
S4820T
Syntax
dcb-policy input policy-name
To delete the input policy, use the no dcb-policy input command.
Parameters
policy-name Enter the input policy name with the PFC configuration to an ingress
interface.
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