What are the current popular wiring methods in data centers? (Multiple choice)

Please match the following ICMPv6 packet types and packet content items. (Drag and drop) ICMPv6 Type135 NS(Neighbor Solicitation) ICMPv6 Type134 RA(Router Advertisement) ICMPv6 Type137 Redirect(Redirect) ICMPv6 Type133 RS(Router solicitation) ICMPv6 Type136 NA(Neighbor Advertisement)

When the BGP versions supported by two BGP neighbors are inconsistent, the neighbors will negotiate to use the highest BGP version supported by both ends.

As shown in the figure, R1 and R2 are in a backup group. After R2 fails, R1 becomes the Master device.

Now if R2 returns to normal, which of the following actions will occur?

When BGP establishes a peer connection, both this segment and the peer end will initiate a TCP three-way handshake, so two TCP connections will be established. However, in actual BGP, only one of the TCP connections will be retained. Obtain the peer BGP from the Open message. After Identifier, the BGP peer will compare the size of the local Router ID and the peer Router ID. If the local Router ID is smaller than the peer Router ID, it will be closed. The locally established TCP connection will use the TCP connection actively initiated by the peer. Subsequent BGP message exchange.