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Answer: Add a static default route in the transit gateway route table to point to the secondary SD-WAN virtual appliance. Add routes that are more specific to point to the primary SD-WAN virtual appliance.
To meet the company's requirement that only a single SD-WAN virtual appliance can handle traffic from AWS workloads at a given time, the network engineer should configure routing in such a way that traffic prefers one path over the other unless it becomes unavailable. Option A suggests adding a static default route in the transit gateway route table to point to the secondary SD-WAN virtual appliance and adding more specific routes to point to the primary SD-WAN virtual appliance. This configuration ensures that traffic will prefer the primary SD-WAN virtual appliance due to the more specific routes, and only use the secondary as a backup if the primary is unavailable. This approach aligns with the company's policy by ensuring that only one SD-WAN virtual appliance handles traffic at a time, unless it fails, in which case the secondary can take over. Options B, C, and D do not directly address the requirement to have only a single SD-WAN virtual appliance handle traffic at a given time in the manner that Option A does.
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A company has implemented a software-defined WAN (SD-WAN) solution to connect all its offices. As the company migrates workloads to AWS, it needs to extend its SD-WAN solution to enable connectivity to these workloads.
A network engineer intends to use AWS Transit Gateway Connect and deploy two SD-WAN virtual appliances to facilitate this connectivity. However, company policies mandate that only one SD-WAN virtual appliance can manage traffic from AWS workloads at any given time.
How should the network engineer set up routing to comply with these requirements?
A
Add a static default route in the transit gateway route table to point to the secondary SD-WAN virtual appliance. Add routes that are more specific to point to the primary SD-WAN virtual appliance.
B
Configure the BGP community tag 7224:7300 on the primary SD-WAN virtual appliance for BGP routes toward the transit gateway.
C
Configure the AS_PATH prepend attribute on the secondary SD-WAN virtual appliance for BGP routes toward the transit gateway.
D
Disable equal-cost multi-path (ECMP) routing on the transit gateway for Transit Gateway Connect.
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