300-620 Exam Dumps : Implementing Cisco Application Centric Infrastructure (300-620 DCACI)

In a Cisco ACI fabric, Spanning Tree Protocol (STP) Bridge Protocol Data Units (BPDUs) that are generated by an external switch, such as Switch2 in this scenario, are indeed forwarded across the fabric. This allows externally connected switches to maintain a loop-free topology. While Cisco ACI does not participate in STP as it uses its own protocols and mechanisms for loop prevention within the fabric, it will forward STP BPDUs across End Point Groups (EPGs) on which they are received1. This ensures that the connected external switches can still use STP for their loop prevention mechanisms.

References :=

Cisco Community Discussion on STP BPDUs in ACI1

ACI Multi-Site architecture is designed to interconnect geographically dispersed data centers and extend Layer 2 and Layer 3 connectivity between those locations with consistent policy enforcement. It allows for either a single APIC cluster to manage multiple ACI sites or supports a dedicated APIC cluster per site. This architecture ensures a scalable and flexible approach to managing multiple data center sites, providing a unified policy framework and operational model across the sites34.

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Cisco Multi-Site Deployment Guide for ACI Fabrics3

Cisco ACI Multi-Site Architecture White Paper4

 In Cisco ACI, the object classes are used to categorize different types of managed objects within the ACI model. The output presented is indicative of a Tenant class object. Tenants in ACI are a top-level container for application policies, essentially providing a unit of isolation from other tenants. Each tenant can contain its own application policies, services, and network policies, and they are separate from other tenants to ensure multi-tenancy1.

References :=

Cisco ACI Policy Model Guide1

Object Renaming in Cisco ACI - Cisco2

Application Centric Infrastructure (ACI) REST API Guide - Cisco DevNet

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