A. The 6to4 automatic tunnel requires the use of a specific IP6 address segment, and the assigned address segment is preceded by 3ffe::/16

B. When configuring manual tunneling on the VRP platform, a Tunnel interface is generally created; When configuring automatic tunneling, a Vrua-Template interface is usually created

C. Automatic tunneling has great advantages over manual tunneling, and manual tunneling will be phased out

D. The ISATAP tunnel determines the destination IPV4 address of the tunnel based on the destination IP6 address.

E. All automatic tunnels encapsulate data in the same way.

A. A BD needs to create an NVE country, and when there are multiple BDs, multiple NVE interfaces must be created

B. NVE interface, and multiple VXLAN tunnels can create only one NVE interface

C. An NVE interface can be associated with multiple VNls, so you can create only one NVE interface when there are multiple BDs

D. For a VXLAN tunnel, you need to create a corresponding NVE interface, in which you explicitly specify the source IP address and the destination IP address , so there are multiple VXLAN tunnels on the VTEP that must be vE interfaces The destination address of the VXLAN tunnel is specified in the

A. The tag space range of dynamic signaling protocols such as LDP, M P-BGP is 16 to 1023

B. MPLS supports multi-layer label nesting, and the S bit value of the innermost label is 1.

C. When using the TTL processing method of Pipe mode, the IP packet transmits the TTL of the IP packet over the IPLS network. The value is only minus 1 for the MPLS in and out nodes.

D. The length of the MPLS tag is 20 to 20 for packet forwarding.

A. For IS-IS, adding new features simply adds a new TLV to

B. In order to support IPv6, IS-IS needs to add TLV to carry IPv6 address information

C. IS-IS uses the TLV structure to build messages, making lS-IS more flexible and extensible

D. NLPID is a new type of TLV added by IS-IS to support IPv6

A. RI and R3 maintain database consistency by periodically sending PSNP requests.

B. R2 As DIS, Hello time is 3 times that of a normal router.

C. R2 as DIS does not receive PSNP nouns for other routes.

D. R2, as DIS, sends CSNP periodically.