300-620 · Question #218
Refer to the exhibit. A Cisco APIC raises this fault when connectivity for EPG-3 is configured. Which action clears the fault?
The correct answer is D. Create BD-3 for EPG-3. A Cisco ACI EPG requires an associated Bridge Domain to define its Layer 2 forwarding and enable network connectivity, so a fault during EPG connectivity configuration often indicates a missing or unlinked Bridge Domain.
Question
Refer to the exhibit. A Cisco APIC raises this fault when connectivity for EPG-3 is configured. Which action clears the fault?
Options
- AAssociate BD-3 to VRF-1.
- BImplement a domain for EPG-3.
- CConfigure a subnet on BD-3.
- DCreate BD-3 for EPG-3.
How the community answered
(50 responses)- A4% (2)
- B8% (4)
- C12% (6)
- D76% (38)
Why each option
A Cisco ACI EPG requires an associated Bridge Domain to define its Layer 2 forwarding and enable network connectivity, so a fault during EPG connectivity configuration often indicates a missing or unlinked Bridge Domain.
While a Bridge Domain needs a VRF association, the primary fault for EPG connectivity (if the BD itself is missing or unlinked) is not resolved by merely associating a non-existent or unlinked BD to a VRF.
Implementing a domain for EPG-3 is crucial for deployment but typically comes after the EPG-to-BD association is established.
Configuring a subnet on BD-3 is for IP routing within the Bridge Domain, but the EPG's basic connectivity fault usually precedes issues with IP addressing if the BD is missing or unlinked.
Every End-Point Group (EPG) in Cisco ACI requires an association with a Bridge Domain (BD) to define its Layer 2 forwarding characteristics and provide network connectivity. A fault during EPG-3 configuration for connectivity typically means that BD-3, which EPG-3 depends upon, has not yet been created or correctly linked.
Concept tested: Cisco ACI EPG-to-Bridge Domain dependency
Source: https://www.cisco.com/c/en/us/td/docs/dcnm/aci/15x/configuration/cisco-aci-configuration-guide-151/m_cisco-aci-configuration-guide-151_chapter_0110.html#concept_3CC380A90B38406F923D4D47E0A5D66F
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