单选题Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment?（）AThe BGP next hop must be in inet.1.BThe BGP next hop must be in inet.3.CMust have a bidirectional LSP configured.DMust have a static route to allow an ARP for connected interfaces.
单选题
Which condition must be met to allow a PE router to forward VPN traffic across a LSP in a Layer 3 VPN environment?（）
A
The BGP next hop must be in inet.1.
B
The BGP next hop must be in inet.3.
C
Must have a bidirectional LSP configured.
D
Must have a static route to allow an ARP for connected interfaces.
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