Dell Force10 MXL Blade Reference Manual page 166

pfc link-delay
Syntax
Parameters
Defaults
Command Modes
Command
History
Usage
Information
Related
Commands
pfc mode on
Syntax
Defaults
Command Modes
Command
History
Usage
Information
Related
Commands
166 | Data Center Bridging
Configure the link delay used to pause specified priority traffic.
pfc link-delay value
To remove the link delay, use the
value
Valid values (in quanta) are 712-65535. One quantum is equal to a 512-bit transmission.
45556 quantum
DCB INPUT POLICY
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
The minimum link delay should be greater than the round-trip transmission time required by a peer to
honor a PFC pause frame multiplied by the number of PFC-enabled ingress ports.
dcb-input Create a DCB input policy.
Enable the PFC configuration on the port so that the priorities are included in DCBX negotiation with
peer PFC devices.
pfc mode on
To disable the PFC configuration, use the
PFC mode is on.
DCB INPUT POLICY
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
By applying a DCB input policy with PFC enabled, you enable PFC operation on ingress port traffic.
To achieve complete lossless handling of traffic, you must also enable PFC on all DCB egress ports or
configure the dot1p priority-queue assignment of PFC priorities to lossless queues (see
queues).
To disable PFC operation on an interface, enter the
configuration mode. PFC is enabled and disabled as global DCB operation is enabled (dcb-enable) or
disabled (no dcb-enable).
PFC and link-level flow control cannot be enabled at the same time on an interface.
dcb-input Create a DCB input policy.
no pfc link-delay command.
no pfc mode on command.
no pfc mode on
pfc no-drop
command in DCB input policy