350-501 · Question #487
Refer to the exhibit. Routers R1 and R2 support traffic between multiple departments at a company's remote office and exchange routes using OSPF. The link between R1 and R2 has been providing…
The correct answer is A. Configure echo mode on both devices to support asymmetry. Bidirectional Forwarding Detection (BFD) is used to detect failures on links quickly. Echo mode is a feature of BFD that can detect failures in asymmetric routing environments by sending echo packets between the devices. This mode operates independently of the control plane and…
Question
Refer to the exhibit. Routers R1 and R2 support traffic between multiple departments at a company's remote office and exchange routes using OSPF. The link between R1 and R2 has been providing inconsistent performance, particularly during times of peak usage. To help Identify the cause, an engineer was asked to implement BFD to detect failures on the link. Which task must the engineer perform?
Exhibit
Options
- AConfigure echo mode on both devices to support asymmetry.
- BConfigure IS-IS to share routes between the routers.
- CConfigure the session parameters individually on each interface.
- DChange the network between R1 and R2 to a /30 prefix.
How the community answered
(27 responses)- A74% (20)
- B15% (4)
- C7% (2)
- D4% (1)
Explanation
Bidirectional Forwarding Detection (BFD) is used to detect failures on links quickly. Echo mode is a feature of BFD that can detect failures in asymmetric routing environments by sending echo packets between the devices. This mode operates independently of the control plane and ensures accurate detection even during high traffic or network asymmetries. Enabling echo mode on both R1 and R2 will help identify and resolve the inconsistency in link performance during
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