Service-class bandwidth-percentage, Policy-based qos commands, Bandwidth-percentage – Dell PowerEdge FX2/FX2s User Manual

Page 397

Advertising
background image

service-class bandwidth-percentage

Specify a minimum bandwidth for queues.

Syntax

service-class bandwidth-percentage queue0 number queue1 number
queue2 number queue3 number

Parameters

number

Enter the bandwidth-weight, as a percentage. The range is
from 1 to 100.

Defaults

none

Command
Modes

CONFIGURATION

Command
History

Version 9.4(0.0)

Supported on the FN I/O aggregator. This command is
supported in Programmable-Mux (PMUX) mode only.

Usage
Information

Guarantee a minimum bandwidth to different queues globally using the service-
class bandwidth-percentage command from CONFIGURATION mode. The
command is applied in the same way as the bandwidth-percentage command
in an output QoS policy. The bandwidth-percentage command in QOS-
POLICY-OUT mode supersedes the service-class bandwidth-percentage
command.
When you enable ETS, the egress QoS features in the output QoS policy-map (such
as service-class bandwidth-percentage and bandwidth-percentage),
the default bandwidth allocation ratio for egress queues are superseded by ETS
configurations. This is to provide compatibility with DCBX. Therefore, Dell
Networking OS recommends disabling ETS when you wish to apply these features
exclusively. After you disable ETS on an interface, the configured parameters are
applied.

Policy-Based QoS Commands

Policy-based traffic classification is handled with class maps. These maps classify unicast traffic into one

of four classes. The system allows you to match multiple class maps and specify multiple match criteria.

Policy-based QoS is not supported on logical interfaces, such as port-channels, VLANs, or Loopbacks.

bandwidth-percentage

Assign a percentage of weight to the class/queue.

Syntax

bandwidth-percentage percentage
To remove the bandwidth percentage, use the no bandwidth-percentage
command.

Parameters

percentage

Enter the percentage assignment of weight to the class/
queue. The range is from 1 to 100% (granularity 1%).

397

Advertising