Reference Guide

Related
Commands
• dcb-input — creates a DCB PFC input policy.
• dcb-policy input — applies the output policy.
• dcb-output — creates a DCBETS output policy.
• dcb-policy output — applies the output policy.
pfc link-delay
Configure the link delay used to pause specified priority traffic.
S4820T
Syntax
pfc link-delay value
To remove the link delay, use the no pfc link-delay command.
Parameters
value The range is (in quanta) from 712 to 65535. One quantum is equal to a
512-bit transmission.
Defaults 45556 quantum
Command Modes DCB INPUT POLICY
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
The minimum link delay must be greater than the round-trip transmission time a peer must
honor a PFC pause frame multiplied by the number of PFC-enabled ingress ports.
Related
Commands
dcb-input — creates a DCB input policy.
pfc mode on
Enable the PFC configuration on the port so that the priorities are included in DCBX negotiation with peer PFC devices.
S4820T
Syntax
pfc mode on
To disable the PFC configuration, use the no pfc mode on command.
Defaults PFC mode is on.
Command Modes DCB INPUT POLICY
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
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