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 Buffer Statistics Tracking
You can enable the tracking of statistical values of buffer spaces at a global level. The buffer statistics tracking utility operates in the max
use count mode that enables the collection of maximum values of counters.
To configure the buffer statistics tracking utility, perform the following step:
1. Enable the buffer statistics tracking utility and enter the Buffer Statistics Snapshot configuration mode.
CONFIGURATION mode
Dell(conf)#buffer-stats-snapshot
Dell(conf)#no disable
Enable this utility to be able to configure the parameters for buffer statistics tracking. By default, buffer statistics tracking is disabled.
2. Enable the buffer statistics tracking utility and enter the Buffer Statistics Snapshot configuration mode.
CONFIGURATION mode
Dell(conf)#buffer-stats-snapshot
Dell(conf)#no disable
Enable this utility to be able to configure the parameters for buffer statistics tracking. By default, buffer statistics tracking is disabled.
3. To view the buffer statistics tracking resource information depending on the type of buffer information, such as device-level details,
queue-based snapshots, or priority group-level snapshot in the egress and ingress direction of traffic, use show hardware stack-
unit <id> buffer-stats-snapshot unit <id> resource x
EXEC/EXEC Privilege mode
Dell#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
---------------------------------------
MCAST 3 0
Unit 1 unit: 3 port: 9 (interface Fo 1/152)
Quality of Service (QoS)
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