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Answer: Create several additional Site-to-Site VPN connections that terminate on the same virtual gateway. Configure equal-cost multi-path (ECMP) routing to use all the VPN connections simultaneously.
The question revolves around improving the bandwidth of a temporary AWS Site-to-Site VPN connection before the implementation of a Direct Connect connection. Option A is not feasible because AWS does not allow increasing the bandwidth quota for Site-to-Site VPN connections beyond their default limits. Option B suggests upgrading the customer gateway device, but this does not address the inherent bandwidth limitations of AWS Site-to-Site VPN connections, which are capped at 1.25 Gbps regardless of the customer gateway's capabilities. Option C proposes creating additional Site-to-Site VPN connections and using ECMP routing to aggregate their bandwidth. This is a viable solution because ECMP routing can distribute traffic across multiple VPN connections, effectively increasing the total available bandwidth. Option D suggests using a transit gateway with multiple VPN connections and ECMP routing. While this is also a valid approach, it introduces additional complexity and cost by involving a transit gateway, which may not be necessary for a temporary solution. Therefore, the most straightforward and cost-effective solution is Option C, which leverages existing AWS features to increase bandwidth without requiring significant changes to the network architecture.
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What steps should the network engineer take to enhance the bandwidth of the Site-to-Site VPN connection, which is currently limited to 1.25 Gbps, prior to the deployment of the 10 Gbps AWS Direct Connect connection?
A
Contact AWS Support to request a bandwidth quota increase for the existing Site-to-Site VPN connection.
B
Discuss the issue with the hardware vendor. Buy a bigger and more powerful customer gateway device that has faster encryption and decryption capabilities.
C
Create several additional Site-to-Site VPN connections that terminate on the same virtual gateway. Configure equal-cost multi-path (ECMP) routing to use all the VPN connections simultaneously.
D
Create a transit gateway. Attach the VPCs to the transit gateway. Create several additional Site-to-Site VPN connections that terminate on the transit gateway. Configure equal-cost multi-path (ECMP) routing to use all the VPN connections simultaneously.