Dell Force10 MXL Blade - Page 166

166 | Data Center Bridging
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pfc link-delay
Configure the link delay used to pause specified priority traffic.
Syntax
pfc link-delay value
To remove the link delay, use the no pfc link-delay command.
Parameters
Defaults
45556 quantum
Command Modes
DCB INPUT POLICY
Command
History
Usage
Information
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.
Related
Commands
pfc mode on
Enable the PFC configuration on the port so that the priorities are included in DCBX negotiation with
peer PFC devices.
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
Usage
Information
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 pfc no-drop
queues).
To disable PFC operation on an interface, enter the no pfc mode on command in DCB input policy
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.
Related
Commands
value
Valid values (in quanta) are 712-65535. One quantum is equal to a 512-bit transmission.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
dcb-input Create a DCB input policy.
Version 8.3.16.1 Introduced on MXL 10/40GbE Switch IO Module
dcb-input Create a DCB input policy.