In an MPLS VPN network, data packets are forwarded when they enter the public network. Will be encapsulated with two layers of MPLS labels.
Which of the following descriptions are correct about the processing of the data packet? (Multiple choice)

As shown in the figure:

As shown in the figure, R1, R2, R3, and R4 are in the same MPLS domain, and LDP is used to allocate MPLS labels between devices. R4 is the FEC Egress LSR of 4.4.4.0/24. If you want to realize that when R1 accesses 4.4.4.0/24, R4 does not need to query the label table but can understand the forwarding priority of the data, then R3's outgoing label for the FEC should be (). (Please fill in the Arabic numerals directly, without symbols)

The link state value information between different ISIS processes of multiple routers is considered to be isolated.

During the process of viewing the debug output through the SSH terminal, a lot of information pops up. Which of the following operations can make the Moni tor terminal no longer pop up the debug message? (Multiple choice)