Administrator Guide

Command
History
Version 9.2(0.0) Supported on the M I/O Aggregator.
Version 8.3.16.1 Introduced on the MXL 10/40GbE Switch IO Module.
Usage
Information
This command is supported in Programmable-Mux (PMUX) mode only.
If an error occurs in an ETS output-policy configuration, the configuration is
ignored and the scheduler and bandwidth allocation settings are reset to the ETS
default values (all priorities are in the same ETS priority group and bandwidth is
allocated equally to each priority).
If an error occurs when a port receives a peer’s ETS configuration, the port’s
configuration is reset to the previously configured ETS output policy. If no ETS
output policy was previously applied, the port is reset to the default ETS
parameters.
You can only associate output QoS policy profiles with the priority groups in the
DCB output profile context; output QoS policy profiles are not permitted on output
policy-maps.
Weighted random early detection (WRED), Explicit congestion notification (ECN),
rate shaping, and rate limiting are not supported in output policies because DCBx
does not negotiate these parameters with peer devices. You can apply a QoS
output policy with WRED and/or rate shaping on a DCBx CIN-enabled interface
(refer to Configuring Port-Based Rate Shaping and Weighted Random Early
Detection).
Related
Commands
• scheduler — schedules the priority traffic in port queues.
• bandwidth-percentage — bandwidth percentage allocated to the priority
traffic in port queues.
show dcb
Displays the data center bridging status, the number of PFC-enabled ports, and the number of PFC-
enabled queues.
Syntax
show dcb [stack-unit unit-number]
Parameters
unit number Enter the DCB unit number. The range is from 0 to 5.
Command
Modes
EXEC Privilege
Command
History
Version 8.3.17.0 Supported on M I/O Aggregator.
Data Center Bridging (DCB)
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