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The order can range from 0 to 254.
By default, all ACL rules have an order of 255.
Displaying Congured Class Maps and Match Criteria
To display all class-maps or a specic class map, use the following command.
Dell EMC Networking OS Behavior: An explicit “deny any" rule in a Layer 3 ACL used in a (match any or match all) class-map creates a
"default to Queue 0" entry in the CAM, which causes unintended trac classication. In the following example, trac is classied in two
Queues, 1 and 2. Class-map ClassAF1 is “match any,” and ClassAF2 is “match all”.
• Display all class-maps or a specic class map.
EXEC Privilege mode
show qos class-map
Examples of Trac Classications
The following example shows incorrect trac classications.
DellEMC#show running-config policy-map-input
!
policy-map-input PolicyMapIn
service-queue 1 class-map ClassAF1 qos-policy QosPolicyIn-1
service-queue 2 class-map ClassAF2 qos-policy QosPolicyIn-2
DellEMC#show running-config class-map
!
class-map match-any ClassAF1
match ip access-group AF1-FB1 set-ip-dscp 10
match ip access-group AF1-FB2 set-ip-dscp 12
match ip dscp 10 set-ip-dscp 14
match ipv6 dscp 20 set-ip-dscp 14
!
class-map match-all ClassAF2
match ip access-group AF2
match ip dscp 18
DellEMC#show running-config ACL
!
ip access-list extended AF1-FB1
seq 5 permit ip host 23.64.0.2 any
seq 10 deny ip any any
!
ip access-list extended AF1-FB2
seq 5 permit ip host 23.64.0.3 any
seq 10 deny ip any any
!
ip access-list extended AF2
seq 5 permit ip host 23.64.0.5 any
seq 10 deny ip any any
In the previous example, the ClassAF1 does not classify trac as intended. Trac matching the rst match criteria is classied to Queue 1,
but all other trac is classied to Queue 0 as a result of CAM entry 20419.
When you remove the explicit “deny any” rule from all three ACLs, the CAM reects exactly the desired classication.
Create a QoS Policy
There are two types of QoS policies — input and output.
Input QoS policies regulate Layer 3 and Layer 2 ingress trac. The regulation mechanisms for input QoS policies are rate policing and
setting priority values.
Quality of Service (QoS)
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