Cisco ACI VMM Port Group Naming Convention
A network engineer configured a Cisco ACI fabric as follows: • An EPG called EPG-A is created and associated with a VMM domain called North. • The EPG-A is associated with BD-A and is in an application profile called Apps-A. • The BD-A is associated with VRF-1 in the Prod tenant. Which port group must be selected to place VMs in EPG-A?
Community Votes
80% of anonymous learners picked answer A. Votes are pick records left by other test-takers — they are not the verified answer.
Community Insight
It tests the ability to identify which components are included in the default vCenter port group naming scheme and distinguishes them from irrelevant network objects like VRFs or Bridge Domains.
This question tests the naming convention for VMware vCenter port groups when integrating Cisco ACI with a VMM domain. The correct name follows the pattern Tenant|Application Profile|EPG Name, excluding the VMM domain or Bridge Domain names.
Many candidates incorrectly include the VMM domain name (Option B) because they assume the domain is part of the path, but the VMM domain is only used for association, not naming.
Community Discussion (3 comments)
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Expert Analysis
Why the Answer Is Correct
The Cisco ACI integration with VMware vCenter creates port groups that follow a specific hierarchical naming convention by default. This convention consists of three parts: the Tenant name, the Application Profile name, and the EPG name. In this scenario, the Tenant is 'Prod', the Application Profile is 'Apps-A', and the EPG is 'EPG-A'. Combining these with the pipe separator results in 'Prod|Apps-A|EPG-A', making Option A the correct choice.Why the Other Options Are Wrong
Option B includes 'North' (the VMM domain), which is incorrect because the VMM domain is a logical container for configuration but does not appear in the generated port group name. Option C uses 'Business_Apps' and 'BD-A', neither of which exist in the provided configuration or are part of the standard naming syntax. Option D includes 'VRF-1', which is a routing construct and has no bearing on the vCenter port group naming structure.Community Comment Notes
Community consensus strongly supports Option A. One user noted that the port group name follows the tenant, application profile, and EPG name structure. Another user confirmed that the documentation supports this concatenation logic, reinforcing that the VMM domain is not part of the name.Exam Strategy
When configuring ACI-VMM integration, remember that the port group name is derived strictly from the policy hierarchy (Tenant > App Profile > EPG). Do not confuse logical networking objects like BDs or VRFs with the policy naming components.
Frequently Asked Questions
Why is the VMM domain name not in the port group name?
The VMM domain is used for association and mapping, but the port group name is automatically generated using only the Tenant, Application Profile, and EPG names.
Does the Bridge Domain affect the port group name?
No, the Bridge Domain is associated with the EPG for Layer 2 connectivity but is not included in the vCenter port group naming string.