Setup Guide

based triggers are supported, which are the values derived from the show command output in the Max Use count mode. In Dell EMC
Networking OS Release 9.3(0.0), only the Max Use count mode of operation is supported for the computation of maximum counter values.
Depending on the buer space statistical values that you can obtain, you can modify the settings for buer area to achieve enhanced
reliability and eciency in the handling of packets. This evaluation and administration of buer statistics is useful and important in
deployments that experience congestion frequently. The receive buer must be large enough to save all data that is received when the
system processes a PFC PAUSE frame.
You can use the service-class buffer shared-threshold-weight queue0 ... queue7 number command in Interface
Conguration mode to specify the threshold weight for the shared buer for each of the queues per port.
1 Create a 10-Gigabit Ethernet interface.
DellEMC(conf)#interface TenGigabitEthernet 1/1/1
2 Congure the threshold weight of the shared buer for the queues you want. In this example, this setting is congured for queues 5
and 7.
DellEMC(conf-if-te-1/1/1)#Service-class buffer shared-threshold-weight queue5 4 queue7 6
Enabling Buer Statistics Tracking
You can enable the tracking of statistical values of buer spaces at a global level. The buer statistics tracking utility operates in the max
use count mode that enables the collection of maximum values of counters.
To congure the buer statistics tracking utility, perform the following step:
1 Enable the buer statistics tracking utility and enter the Buer Statistics Snapshot conguration mode.
CONFIGURATION mode
DellEMC(conf)#buffer-stats-snapshot
DellEMC(conf)#no disable
Enable this utility to be able to congure the parameters for buer statistics tracking. By default, buer statistics tracking is disabled.
2 Enable the buer statistics tracking utility and enter the Buer Statistics Snapshot conguration mode.
CONFIGURATION mode
DellEMC(conf)#buffer-stats-snapshot
DellEMC(conf)#no disable
Enable this utility to be able to congure the parameters for buer statistics tracking. By default, buer statistics tracking is disabled.
3 To view the buer statistics tracking resource information depending on the type of buer information, such as device-level details,
queue-based snapshots, or priority group-level snapshot in the egress and ingress direction of trac, use show hardware stack-
unit <id> buffer-stats-snapshot unit <id> resource x
EXEC/EXEC Privilege mode
DellEMC#show hardware stack-unit 1 buffer-stats-snapshot unit 3 resource interface all queue
mcast 3
Unit 1 unit: 3 port: 1 (interface Fo 1/144)
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Q# TYPE Q# TOTAL BUFFERED CELLS
---------------------------------------
MCAST 3 0
Unit 1 unit: 3 port: 5 (interface Fo 1/148)
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Q# TYPE Q# TOTAL BUFFERED CELLS
792
Quality of Service (QoS)