Cisco 300-620 Exam With Confidence Using Practice Dumps

In Cisco ACI fabric, MP-BGP (Multi-Protocol Border Gateway Protocol) is utilized for several purposes, one of which includes the propagation of L3Out (Layer 3 Out) routes within the fabric. Specifically, MP-BGP with VPNv4 address family (AF) is used in the ACI infra VRF (overlay-1 VRF) to distribute external routes from a border leaf to other leaf switches1. This allows for the efficient dissemination of routing information and ensures that all relevant leaf switches are aware of the routes necessary to reach external networks.

References :=

ACI Fabric L3Out White Paper - Cisco1

Configuring ACI Fabric BGP Route Reflectors - Cisco2

ACI Fabric - Underlying protocols - Cisco Community3

Cisco Application Centric Infrastructure Fundamentals, Release 5.3(x)4

In a two-pod Cisco ACI Multi-Pod environment, it is recommended to deploy no more than two Cisco APIC controllers in the same pod to avoid losing all replicas of a shard if a pod fails. The APIC cluster is a distributed system where each APIC contains a replica of the configuration database, referred to as a shard. If all replicas of a shard were located in the same pod and that pod were to fail, it would result in the loss of the shard and potentially impact the entire fabric’s operation. By distributing the APIC controllers across pods, the risk of losing all replicas due to a single point of failure is mitigated, enhancing the overall resiliency of the system1.

References :=

ACI Multi-Pod White Paper - Cisco1