Free Access Huawei H31-161 New Release

1. On the backbone network , if a PE is connect to a CE, VPN instances need to b reconfigured on the PE, and interface on the PE for connecting to the CE must be bound to a VPN instance. After binding an interface to a VPN instance, you must configure the IP address of the interface between PEs, IS-IS configured for PE interworking. PLSA basic capabilities and MPLS LSP are configured for LSP establishment, and MP _IBGP is configured for VPN route exchange VPN routes exchange , LDAP is short for Label Distribution Protocol, and IBGP is short for interior Border gateway protocol.

2. A CE exchange route exchange routers with a PE over External Border gateway Protocol (EBGP.

Configure interior gateway protocol (IGP) on the IS-IS+MPLS backbone networking to achieve the interworking between PEs and IP routers.

As shown in the figure, the costs of paths from RTA to RT 11, RT 12, RT

13, RT 14, and RT 15 are all 10 and the available bandwidth is 200 Mbit/s.

The costs of paths from RTB to RT 31, RT 32, RT 33, RT 34, and RT 35 are all 10 and the available bandwidth is 200 Mbit/s.

The costs of paths from RT 11 to RT 21 and from RT 21 to RT 31 are both 5. The available bandwidth is 200 Mbit/s.

The cost of the path from RT 12 to RT 32 is 5 and the available bandwidth is 120 Mbit/s. The cost of the path from RT 13 to RT 33 is 10 and the available bandwidth is 80 Mbit/s.

The cost of the path from RT 14 to RT 34 is 10 and the available bandwidth is 100 Mbit/s.

The cost of the path from RT 15 to RT 35 is 10 and the available bandwidth is 100 Mbit/s.

The load balancing rule of Constraint Shortest Path First (CSPF) is set to Random on RTA.

Which path will a 100 Mbit/s tunnel from RTA to RTB take?

All nodes in the topology belong to the same IGP area. They can learn routers from each other and have the TE capability. The tunnels configured below can be Up. Refer to the following configuration of RTA,Which of the following statements are true?

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mpls lsr-id 1.1.1.1

mpls

mpls te

mpls rsvp-te

mpls te cspf

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explicit-path pri-path

next hop 3.1.1.2

next hop 4.1.1.2

next hop 5.1.1.2

#

explicit-path bypass-1

next hop 2.1.1.2next hop 6.1.1.1

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explicit-path bypass-2

next hop 2.1.1.2

next hop 7.1.1.2

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explicit-path bypass-3

next hop 8.1.1.2

next hop 9.1.1.2

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interface Tunnel1/0/0

ip address unnumbered interface LoopBack0

tunnel-protocol mpls te

destination 4.4.4.4

mpls te tunnel-id 100

mpls te record-route label

mpls te path explicit-path pri-path

mpls te fast-reroute

mpls te commit

#

interface Tunnel2/0/0

ip address unnumbered interface LoopBack0

tunnel-protocol mpls te

destination 2.2.2.2

mpls te tunnel-id 101

mpls te record-route label

mpls te path explicit-path bypass-1

mpls te bypass-tunnel

mpls te protected-interface GigabitEthernet 3/0/0

mpls te commit

#

interface Tunnel2/0/1

ip address unnumbered interface LoopBack0

tunnel-protocol mpls te

destination 3.3.3.3

mpls te tunnel-id 102

mpls te record-route label

mpls te path explicit-path bypass-2

mpls te bypass-tunnel

mpls te protected-interface GigabitEthernet 3/0/0

mpls te commit

#

interface Tunnel2/0/2ip address unnumbered interface LoopBack0

tunnel-protocol mpls te

destination 4.4.4.4

mpls te tunnel-id 103

mpls te record-route label

mpls te path explicit-path bypass-3

mpls te bypass-tunnel

mpls te protected-interface GigabitEthernet 3/0/0

mpls te commit

#