Reference Guide

Defaults None
Command
Modes
DCB MAP
Command
History
Version 9.3(0.0) Introduced on the S4810, S6000 platforms.
Usage
Information
PFC and ETS settings are not pre-configured on Ethernet ports. You must use the
dcb-map command to configure different groups of 802.1p priorities with PFC and
ETS settings.
Using the priority-pgid command, you assign each 802.1p priority to one
priority group. A priority group consists of 802.1p priority values that are grouped
together for similar bandwidth allocation and scheduling, and that share latency
and loss requirements. All 802.1p priorities mapped to the same queue must be in
the same priority group. For example, the
priority-pgid 0 0 0 1 2 4 4 4
command creates the following groups of 802.1p priority traffic:
• Priority group 0 contains traffic with dot1p priorities 0, 1, and 2.
• Priority group 1 contains traffic with dot1p priority 3.
• Priority group 2 contains traffic with dot1p priority 4.
• Priority group 4 contains traffic with dot1p priority 5, 6, and 7.
To remove a priority-pgid configuration from a DCB map, enter the no
priority-pgid
command.
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 MAP
Command
History
Version 9.3(0.0) Introduced on the MXL 10/40GbE Switch with the FC Flex IO
module.
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, 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).
572
Data Center Bridging (DCB)