Users Guide

Data Center Technology Commands 1191
no traffic-class-group max-bandwidth
• bw-0..7—The maximum percentage bandwidth to be transmitted by the
TCG. Range 0 to 100.
Default Configuration
The default maximum bandwidth for all TCGs is 0% (unlimited).
Command Mode
Global Config, Interface Configuration modes
User Guidelines
NOTE: This command is only available on N40xx series switches.
This command specified in Interface Configuration mode only affects a
single interface; whereas, the Global Configuration mode setting is applied to
all interfaces. Interface configuration overrides the global configuration on
the designated interface. The Interface Configuration mode command is only
available on platforms that support independent per-port class of service
queue configuration.
Each bw-x value is a percentage that ranges from 0 to 100 in increments of 1.
All n bandwidth values must be specified with this command and each is
independent of the others. The number n is platform dependent and
corresponds to the number of supported traffic classes groups. The default
maximum bandwidth value for each TCG is 0, meaning no upper limit is
enforced, which allows the TCG queue to consume any available non-
guaranteed bandwidth of the interface.
If a non-zero value is specified for any bw-x maximum bandwidth parameter,
it must not be less than the current minimum bandwidth value for the
corresponding queue. A bw-x maximum bandwidth parameter value of 0 may
be specified at any time without restriction.
The maximum bandwidth limits may be used with either a weighted or strict
priority scheduling scheme. Note that a value of 0 (the default) implies an
unrestricted upper transmission limit, which is similar to 100%, although
there may be subtle operational differences depending on how the device
handles a no limit case versus limit to 100%.