H31-161 · Question #28
As shown in the figure, IGP is configured on RT 1 and RT 2, and route 193.3.6.0/24 is configured on RT 2. Which of the following statements is correct? Suppose OSPF is used here. Configure an access…
The correct answer is B. Except the entry nexthop:106.108.3.1, a backup forwarding entry nexthop:106.108.3.1 is also D. Use a tester to send traffic from FE5 to FE6 after the BFD session becomes Up, run the undo ip. See the full explanation below for the reasoning.
Question
As shown in the figure, IGP is configured on RT 1 and RT 2, and route 193.3.6.0/24 is configured on RT 2. Which of the following statements is correct? Suppose OSPF is used here. Configure an access control list (ACL) on RT 2 in system mode. ACL 2000 rule 5 permit source 193.3.6.0 0.0.0.255 Configure a routing policy in system mode:
route-policy t permit node 1 if-match acl 2000 apply backup-nexthop 106.108.4.1 apply backup-interface Ethernet4/0/4 Configure the IP FRR in system mode:
ip frr route-policy tConfigure the ethe4/0/4 interface of RT 2:
ospf cost 100 Configure BFD on RT 2:
Enable BFD on Ethernet4/0/3 bfd b1 bind peer-ip 106.108.3.1 interface Ethernet4/0/3 discriminator local 1 discriminator remote 1 min-tx-interval 10 min-rx-interval 10 process-pst commit Configuration on RT 1:
Enable BFD on Ethernet7/0/3 bfd b1 bind peer-ip 106.108.3.2 interface Ethernet7/0/3 discriminator local 1 discriminator remote 1 min-tx-interval 10 min-rx-interval 10 process-pst commit
Exhibit
Options
- AThe IP FRR function is enabled for the traffic bound for 193.3.6.0/24 on RT 2. It is unnecessary to
- BExcept the entry nexthop:106.108.3.1, a backup forwarding entry nexthop:106.108.3.1 is also
- CIf apply backup-interface Ethernet4/0/4 is deleted, the backup forwarding entry can also be
- DUse a tester to send traffic from FE5 to FE6 after the BFD session becomes Up, run the undo ip
How the community answered
(47 responses)- A6% (3)
- B81% (38)
- C13% (6)
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