Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 766
Displaying Con d Class Maps and Match Criteria, Dell Networking OS Behavior
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When class-maps with overlapping ACL rules are applied to different queues, use the keyword order to process ACL rules in the desired order. ACL rules with lower order numbers (order numbers closer to 0) are applied before rules with higher order numbers so that packets are matched as you intended. • Specify the order in which you want to apply ACL rules using the keyword order. order The order can range from 0 to 254. By default, all ACL rules have an order of 254. Displaying Configured Class Maps and Match Criteria To display all class-maps or a specific class map, use the following command. Dell 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 traffic classification. In the following example, traffic is classified in two Queues, 1 and 2. Class-map ClassAF1 is "match any," and ClassAF2 is "match all". • Display all class-maps or a specific class map. EXEC Privilege mode show qos class-map Examples of Traffic Classifications The following example shows incorrect traffic classifications. Dell#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 Dell#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 Dell#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 Quality of Service (QoS) 766
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