Users Guide

!
ip access-list standard dscp_40_ecn
seq 5 permit any dscp 40 ecn 1
seq 10 permit any dscp 40 ecn 2
seq 15 permit any dscp 40 ecn 3
!
ip access-list standard dscp_50_non_ecn
seq 5 permit any dscp 50 ecn 0
!
ip access-list standard dscp_40_non_ecn
seq 5 permit any dscp 40 ecn 0
!
class-map match-any class_dscp_40
match ip access-group dscp_40_non_ecn set-color yellow
match ip access-group dscp_40_ecn
!
class-map match-any class_dscp_50
match ip access-group dscp_50_non_ecn set-color yellow
match ip access-group dscp_50_ecn
!
policy-map-input pmap_dscp_40_50
service-queue 2 class-map class_dscp_40
service-queue 3 class-map class_dscp_50
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)
---------------------------------------
Q# TYPE Q# TOTAL BUFFERED CELLS
---------------------------------------
808
Quality of Service (QoS)