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t？As a Network Engineer, it is necessary for you to know how to implement MPLS VPNs between Customer Edge and Provider Edge routers.Refer to the following descriptions, which one is making sense？（）

A. If using OSPF or EIGRP as the PE-CE routing protocol, redistribution is not required, but any other protocol or static route will require redistribution

B. If using IS-IS as the PE-CE routing protocol, no redistribution is required

C. If using static routes between the CE and PE routers, no redistribution of other VPN routes is required

D. If PE-CE protocol is not BGP, redistribution of other VPN routes from MP-BGP is required

A．P

B．CE

C．PE

D．SP

A. Layer 3 MPLS VPNs can forward only IP packets

B. Layer 2 MPLS VPNs can forward any network protocol

C. MPLS 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

A．PE

B．CE

C．P路由器

D．SITE

A．CE和PE中间经过Frame-Relay交换机，CE和PE统一配置DTE模式

B．CE和PE只是采用FR封装，中间不经过Frame-Relay交换机，CE和PE同时是DTE模式

C．PE配置为DTE模式

D．CE配置为DCE模式

A. EIGRP can be used only as the PE-CE routing protocol if the PE and CE routers are in the same AS

B. Other EIGRP AS routes are automatically advertised to the CE router and do not require a redistribution configuration command to be configured

C. Unlike other routing protocols that are used between PE and CE routers, EIGRP supports backdoor links

D. Configure of the VPN is only required on the PE router

A．CE 上只需要运行普通路由协议，不需要运行MP-BGP 和MPLS

B．CE 需要支持MPLS

C．CE 是用户边缘路由器，用来连接MPLS 骨干网络的PE

D．CE 位于VPN Site，用来提供地址转化功能以保证没有地址重叠