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What is the difference between port-based and VLAN-based QoS access control lists (ACLs)?

April 26, 2017ACLs CONTROL difference lists QoS vlan-based

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What is the difference between port-based and VLAN-based QoS access control lists (ACLs)?

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A. Each QoS ACL can be applied either to a port or to a VLAN, but there is an additional configuration parameter to take into account: the ACL port type. A port can be configured to be VLAN-based or port-based. These are the two types of configurations: • If a VLAN-based port with an applied ACL is assigned to a VLAN that also has an applied ACL, then the VLAN-based ACL takes priority over the port-based ACL. • If a port-based port with an applied ACL is assigned to a VLAN that also has an applied ACL, then the port-based ACL takes priority over the VLAN-based ACL. Refer to the Which of the Four Possible Sources for Internal DSCP will be Used? section of QoS Classification and Marking on Catalyst 6500/6000 Series Switches Running CatOS Software for more information.