多项选择题

WhichfourstatementsaboutEthernetvirtualcircuit（EVC）infr……

Which four statements about Ethernet virtual circuit （EVC） infrastructure are true？（）

A.EVC infrastructure is a Layer 3 platform-independent routing architecture that supports IP overEthernet services
B.Ethernet flow point （EFP） is configured on the main interface
C.Feature commands like MQC-based QoS policies can be specified
D.EVC infrastructure is a Layer 2 platform-independent bridging architecture that supports Ethernetservices
E.Each Ethernet flow point （EFP） matches a predefined VLAN tag-based criteria
F.Ethernet flow point （EFP） is configured on the VLAN interface

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