Topic 1 Question 48
A company's network engineer is designing an active-passive connection to AWS from two on-premises data centers. The company has set up AWS Direct Connect connections between the on-premises data centers and AWS. From each location, the company is using a transit VIF that connects to a Direct Connect gateway that is associated with a transit gateway. The network engineer must ensure that traffic from AWS to the data centers is routed first to the primary data center. The traffic should be routed to the failover data center only in the case of an outage. Which solution will meet these requirements?
Set the BGP community tag for all prefixes from the primary data center to 7224:7100. Set the BGP community tag for all prefixes from the failover data center to 7224:7300
Set the BGP community tag for all prefixes from the primary data center to 7224:7300. Set the BGP community tag for all prefixes from the failover data center to 7224:7100
Set the BGP community tag for all prefixes from the primary data center to 7224:9300. Set the BGP community tag for all prefixes from the failover data center to 7224:9100
Set the BGP community tag for all prefixes from the primary data center to 7224:9100. Set the BGP community tag for all prefixes from the failover data center to 7224:9300
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B - correct.
Option B is the correct solution. Set the BGP community tag for all prefixes from the primary data center to 7224:7300, and set the BGP community tag for all prefixes from the failover data center to 7224:7100. This way, the primary data center will have a lower BGP local preference, making it the preferred path. If there is an outage in the primary data center, the failover data center will have a higher BGP local preference and will become the preferred path. The other options do not provide the correct community tag values for the primary and failover data centers.
👍 4zaazanuna2023/03/18BBBBBBBBBBBB
👍 4helloworldabc2023/03/20See section "Local preference BGP communities" from: https://docs.aws.amazon.com/directconnect/latest/UserGuide/routing-and-bgp.html
👍 4that1guy2023/04/06
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