How Loops Can Form in the ACI Fabric Incorrect cabling or misconfigurations can cause loops in the Cisco ACI fabric. A loop means there...

Overview of EPG and ESG: EPG (Endpoint Group):  Groups endpoints (e.g., servers or VMs) logically for defining application-based...

BFD (Bidirectional Forwarding Detection) is a network protocol designed to detect faults in the forwarding path between two connected...

How vPC Changes Spanning-Tree Unique Bridge ID in Spanning-Tree Each switch running Spanning-Tree has its own Bridge ID. This ID is...

Troubleshooting Users Resetting Local Admin Password Note:  This procedure is only for MSO OVA deployments in VMware ESX. It does...

Increasing CPU Cycle Reservation for Orchestrator VMs Cisco ACI Multi-Site Orchestrator VMs require a dedicated amount of CPU cycles to...

Troubleshooting Tools : Instructions on using tools like the Multi-Site troubleshooting report, API call logs, VM data collection, and...

There are three main ways to deploy firewalls in a Cisco ACI Multi-Pod environment: Active-Standby Firewall Pair Stretched Across Pods...

What is Host Routing? The key points about the Host-Based Routing (HBR) feature in Cisco ACI: Purpose : HBR supports host-based routing...

Introduction Cisco Application Centric Infrastructure (ACI) Release 4.0(1): Introduces Cisco Mini ACI Fabric  for small-scale...

OpFlex  is an open and extensible policy protocol developed by Cisco Systems. It is designed to facilitate communication between a policy...

What is Kubernetes? Kubernetes (commonly referred to as "K8s") is an open-source platform designed to automate the deployment, scaling,...

Introduction to OpenStack OpenStack  is an open-source cloud computing platform that enables organisations to build and manage both...

APIC Maintains System State: The Application Policy Infrastructure Controller (APIC) maintains a comprehensive, up-to-date run-time...

Floating L3Out Version Support Floating L3Out Introduction: Started in ACI Version 4.2(1):  The floating L3Out feature became available...

Overview: NetFlow  tracks and records data movement within the network. Helps administrators analyze traffic patterns, troubleshoot...

ACI remote leaf switch deployment allows extension of ACI fabric to remote data centers without a local spine switch or APIC. Remote leaf...

Scenerio 1 : Multi-Pod Inter-Pod Network (IPN) broadcast, unknown unicast, and multicast (BUM) troubleshooting  Symptoms Endpoint...

Application Profile --> EPG --> Intra EGP Isolation --> It's Unenforced (default) --> Change it to enforced and EndPoint within EGP will...

Admin > Firmware apic1 #  show firmware upgrade status Pod Node Current-Firmware Target-Firmware Status Upgrade-Progress(%) ...