Cisco 300-620 Exam With Confidence Using Practice Dumps

To implement the Inter-Site Network (ISN) for a Cisco ACI Multi-Site deployment, the following configuration steps are essential:

Configure OSPF on all ISN routers: OSPF (Open Shortest Path First) is a routing protocol that is used to ensure that all routers in the ISN have the necessary routing information to forward packets between sites.

Configure BIDIR-PIM on all ISN routers: BIDIR-PIM (Bidirectional Protocol Independent Multicast) is used for efficient multicast traffic forwarding across the ISN. This is particularly important for Cisco ACI Multi-Site deployments as it supports the replication of broadcast, unknown unicast, and multicast (BUM) traffic across sites.

References :=

Cisco ACI Multi-Site Configuration Guide

Cisco ACI Multi-Site Architecture White Paper

To minimize possible traffic impact during the upgrade of an ACI fabric with 3 APIC controllers and servers dual-homed to pairs of leaf switches configured in VPC mode, the fabric should be upgraded following Option A2. This option involves creating two maintenance groups for the APIC controllers, upgrading one group at a time, and then proceeding with the leaf switches2. This staged approach helps ensure that not all paths are affected simultaneously, thereby reducing the potential for traffic disruption2.