Developers Guide

Version Description
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.1.9.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
6.2.1.1 Introduced on the E-Series.
Usage
Information
The unit of bandwidth percentage is 1%. If the sum of the bandwidth percentages given to all eight
classes exceeds 100%, the bandwidth percentage automatically scales down to 100%.
Related
Commands
● qos-policy-output — creates a QoS output policy.
buffer-stats-snapshot
Enable the buffer statistics tracking utility and enter the Buffer Statistics Snapshot configuration mode. You must enable this
utility to be able to configure the parameters for buffer statistics tracking.
Syntax
[No] buffer-stats-snapshot
To disable the buffer statistics tracking utility, enter the disable command from the BUFFER-STATS-
SNAPSHOT mode.
Default By default, buffer statistics tracking is disabled.
Command Modes CONFIGURATION mode
Command
History
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S6100-ON.
9.8(1.0) Introduced on the Z9100-ON.
9.7(0.0) Introduced on the S6000-ON.
9.3.0.0 Introduced on the S6000 platform
Usage
Information
Only the software-based trigger for retrieving and calculating the snapshots of the statistical counters of
the buffer space is supported. Collection of snapshots of buffer statistical counters based on hardware
threshold settings is not supported, which can be used to specify the type of hardware threshold and the
threshold profile templates.
Example
DellEMC(conf)#buffer-stats-snapshot
DellEMC(conf-buffer-stats-snapshot)#?
disable Disable buffer-stats-snapshot globally
end Exit from configuration mode
exit Exit from buffer-stats-snapshot configuration
mode
no Negate a command or set its defaults
show Show buffer-stats-snapshot configuration
DellEMC(conf-buffer-stats-snapshot)#no disable
DellEMC(conf-buffer-stats-snapshot)#show configuration
!
buffer-stats-snapshot
no disable
1220 Quality of Service (QoS)