Configuring Layer 3 Out Connectivity in ACI Fabric
Question
You are configuring an ACI fabric with Layer 3 out connectivity.
You want to allow traffic to traverse from one external EPG to another external EPG, or alternatively to another internal EPG.
Which option must be configured to permit the packets between these two EPGs, assuming the subnet is already being advertised correctly?
Answers
Explanations
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A. B. C. D. E.B.
To allow traffic to traverse between two external EPGs or from an external EPG to an internal EPG in an ACI fabric with Layer 3 out connectivity, you need to configure the correct options. Among the given options, the correct option to permit packets between these two EPGs is "D. Import Route Control."
Here's an explanation of the different options:
A. Aggregate Export: This option is used to aggregate multiple external subnets into a single subnet before exporting it to the Layer 3 device. It is not relevant to the scenario described in the question.
B. Security Import Subnet: This option is used to configure the import of an external subnet into an EPG as a security import subnet. It is not relevant to the scenario described in the question.
C. Export Route Control: This option is used to control the export of routes from the ACI fabric to the Layer 3 device. It is not relevant to the scenario described in the question.
D. Import Route Control: This option is used to control the import of routes from the Layer 3 device to the ACI fabric. In the given scenario, the subnet is already being advertised correctly. Therefore, configuring Import Route Control will allow packets between the two EPGs.
E. Aggregate Import: This option is used to aggregate multiple external subnets into a single subnet after importing it from the Layer 3 device. It is not relevant to the scenario described in the question.
In summary, to permit packets between two EPGs in an ACI fabric with Layer 3 out connectivity, you need to configure "D. Import Route Control."
