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...

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...

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...

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(%) ...

Troubleshooting Logical Constructs Check if leaf has required vrf Leaf# show vrf all 2. Check on VRF if "Policy Control Enforcement...

Each POD has local instance of ISIS and COOP Inter-POD connectivity is through IPN Inter-POD BUM uses PIM-Bidir BGP in between PODs to...

Step 1: Log into ND click --> ok Step 2: Go to Dashboard it will take you to One View display Step 3: Go to Admin Console Step 4:...

APIC integrates with 3rd party VMMs Three options with Virtual VMM: VMware DVS Cisco ACI Virtual Edge Cisco Application Virtual Switch...

Port 161 ---> It is used for read based queries Port 162 ---> It is used for sending out traps. Configuring SNMP