试题详情
- 多项选择题Which two of these are characteristics of MPLS VPNs？ （）
A、 Layer 3 MPLS VPNs can forward only IP packets
B、 Layer 2 MPLS VPNs can forward any network protocol
C、 MPL S label paths are automatically formed based on Layer 2 frames
D、 Layer 3 MPLS VPNs can forward any network protocol based on Layer 2 frames
E、 In Layer 2 MPLS VPNS， the service provider controls the customer Layer 3 policies
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