Receives the labeled packet it pops the label and

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receives the labeled packet, it pops the label and uses it to direct the packet to the correct CE router. Label forwarding across the provider backbone is based on either dynamic label switching or traffic engineered paths. A customer data packet carries two levels of labels when traversing the backbone ReferencE. - 2/lxvpn/configuration/guide/vcasr9kv342/vcasr9k42v3.html QUESTION NO: 356 Refer to the exhibit. Which statement describes what the authoritative flag indicates? A. Authentication was used for the mapping. B. R1 learned about the NHRP mapping from a registration request. C. Duplicate mapping in the NHRP cache is prevented. D. The registration request had the same flag set. Answer: B Cisco 400-101 Exam "Pass Any Exam. Any Time." - 291
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Explanation: Show NHRP: Examples The following is sample output from the show ip nhrpcommand: Router# show ip nhrp10.0.0.2 255.255.255.255, tunnel 100 created 0:00:43 expire 1:59:16 TypE. dynamic Flags: authoritative NBMA address: 10.1111.1111.1111.1111.1111.1111.1111.1111.1111.11 10.0.0.1 255.255.255.255, Tunnel0 created 0:10:03 expire 1:49:56 TypE. static Flags: authoritative The fields in the sample display are as follows: Flags: authoritative—Indicates that the NHRP information was obtained from the Next Hop Server orrouter that maintains the NBMA-to-IP address mapping for a particular destination. ReferencE.QUESTION NO: 357 Refer to the exhibit.Which two statements about this configuration are true? (Choose two.) Cisco 400-101 Exam "Pass Any Exam. Any Time." - 292
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A. Spoke devices will be dynamically added to the NHRP mappings. B. The next-hop server address must be configured to 172.168.1.1 on all spokes. C. The next-hop server address must be configured to 192.168.1.1 on all spokes. D. R1 will create a static mapping for each spoke. Answer: A,CExplanation: NHRP is a client/server model protocol which is defined by RFC2332. The hub is considered to bethe Next Hop Server (NHS) and the spokes are considered to be the Next Hop Client (NHC). Thehub must be configured as the next-hop server. NHRP provides a mapping between the inside and outside address of a tunnel endpoint. Thesemappings can be static or dynamic. In a dynamic scenario, a next-hop server (NHS) is used tomaintain a list of possible tunnel endpoints. Each endpoint using the NHS registers its own publicand private mapping with the NHS. The local mapping of the NHS must always be static. It isimportant to note that the branch points to the inside or protected address of the NHS server. Thisscenario is an example of dynamic mappings. ReferencE.Phase2.html QUESTION NO: 358 Which two tunneling techniques determine the IPv4 destination address on a per-packet basis?(Choose two.)A. 6to4 tunneling B. ISATAP tunneling C. manual tunneling D. GRE tunneling Answer: A,BExplanation: Tunnel Configuration Parameters by Tunneling Type Tunneling Type
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