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AWS Certified Advanced Networking - Specialty · AWS
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Existing DX can not be changed (or increased, because it already reached limit of 4 links in the LAG). After observing CW VIF traffic metrics, nothing much to do except upgrade to 10G and migrate to it (A)
A The company has configured the Direct Connect connection stacked with LAG like the below AWS document in this scenario. It seems that there are 4 1-GB dedicated connections. https://docs.aws.amazon.com/directconnect/latest/UserGuide/lags.html Hence, you must monitor the entire traffic, not each dedicated connection traffic. Option C and D are wrong for this reason. https://docs.aws.amazon.com/directconnect/latest/UserGuide/monitoring-cloudwatch.html Option B is wrong. To change the port speed, you must create and configure a new connection. https://docs.aws.amazon.com/directconnect/latest/UserGuide/dedicated_connection.html
Option A, - From https://docs.aws.amazon.com/directconnect/latest/UserGuide/dedicated_connection.html, you can't upgrade the current port speed. hosted connection support 1, 10, 100, 400. Current LAG 4GBPS mean that 4 connection / LAG => If need 10 seem need create a new because LAG require same port speed.