Which of the following commands can be used to view BGP VPNv4 routing and BGP private network routing information on PE?

The Discovery message of LDP is used for neighbor discovery, and LDP has different discovery mechanisms when discovering neighbors. The following statement about the Discovery message in the basic discovery mechanism is correct

In the test phase of cutover, which standards that can indicate the test has been completed?

Please sort by the cutover execution steps.

As shown in the figure, network administrator A on the R1 router, after modifying the Local Preference value of the routing entry sent to R2 through the routing policy, can control the path of traffic leaving AS100.