In MPLS VPN network troubleshooting, if "the VPN instance routing table on the PE device contains routes to the remote CE, but packets cannot be forwarded to the remote CE," which of the following troubleshooting steps should be performed first?

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A. Check if the VPN instance interface on the PE device can reach the remote CE.

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B. Check if the BGP VPNv4 neighbor between PE devices is established normally.

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C. Check if the MPLS LSP is established on the P device.

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D. Check if the firewall on the remote CE device is blocking data packets.

In MPLS VPN network troubleshooting, if "the VPN instance routing table on the PE device contains routes to the remote CE, but packets cannot be forwarded to the remote CE," which of the following…

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