300-620 DCACI: Implementing Cisco Application Centric Infrastructure

By Cisco · Question Mode

QuestionQ35

ACI Fabric Infrastructure

A bridge domain for a new endpoint group in the Cisco ACI fabric must satisfy these requirements:

  • The bridge domain must serve as the subnet’s default gateway so routing stays within the Cisco ACI fabric.
  • ARP requests must be handled using Layer 3 unicast packets or dropped to reduce excessive broadcast traffic.
  • The effect of misconfigured virtual machines must be minimized by preventing IP addresses outside the configured subnet from being routed.

Which set of actions is required?

Explanation

Enabling Unicast Routing and configuring a bridge-domain subnet provides the Cisco ACI fabric default gateway and in-fabric routing. With ARP Flooding disabled, ARP packets are sent as unicast instead of being flooded. Limit IP Learning to Subnet restricts endpoint IP learning to configured bridge-domain subnets, preventing addresses outside those subnets from being routed.

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