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Topic starter
06/11/2022 12:54 pm
In order to ensure the normal forwarding of large business traffic, the network administrator of a company uses two firewalls to implement dual-system hot backup. As shown in the figure, after the configuration is completed, it is found that when firewall A fails, the data stream being transmitted before the failure suffers severe packet loss, but the newly transmitted data stream can work normally after the failure.
What are the possible reasons for this phenomenon?
- A . The HRP preemption time configured on the firewall is less than the OSPF convergence time
- B . The function of adjusting the COST value of OSPF based on HRP status is not configured
- C . The fast session backup function is not configured on the USG, and packets cannot be forwarded normally when the round-trip paths are inconsistent.
- D . HRP track is not enabled on the upstream and downstream interfaces of the firewall
Suggested Answer: C