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Cisco APIC Documentation Center

October 19, 2017

A great resource, that is sometimes overlooked, is Cisco’s APIC Documentation Center, located on CCO. This is a one-stop shop, where all of Cisco’s ACI Configuration Guides, APIC software release notes, knowledge base articles, and new features are documented. If you have an ACI deployment, you should definitely bookmark this page! https://www.cisco.com/c/en/us/support/cloud-systems-management/application-policy-infrastructure-controller-apic/tsd-products-support-series-home.html

Learning ACI, a 12-step overview

October 18, 2017

One of my former colleagues wrote a great series of posts in which he explains ACI, from start to beginning. If you are looking for a great overview of ACI, I would check this out! https://adamraffe.com/learning-aci/

Ignoring Acknowledged Faults

October 3, 2017

One issue that can pop up when trying to maintain an ACI Fabric is the presence of cosmetic faults that drag our health score down. For example, let’s say we pre-configure server ports to be members of an EPG, but the servers have yet to be plugged into the fabric. In that case, the health … More Ignoring Acknowledged Faults

L3OUT – EIGRP using Routed Interfaces

September 26, 2017

At some point, you will need to configure Layer-3 routing from your ACI Fabric to External world. In this article, we will explore using EIGRP as the routing protocol to connect to our ACI Fabric. Assumptions Routed Interfaces will be used from External Devices to ACI Border LEAFs VRF is operating in Enforced Mode (meaning, … More L3OUT – EIGRP using Routed Interfaces

Configuring ACI Fabric Access Policies

September 25, 2017

ACI Fabric Access Policies are used to configure parameters which relate to access INTO the fabric, (i.e., configuring ports on a Leaf switches for servers, firewalls, network switches, and other devices). In addition, Fabric Access Policies are used to configure other parameters like SPEED, Enabling LLDP or CDP, LACP and more. Assumptions I assume that … More Configuring ACI Fabric Access Policies

Configuring ACI Fabric BGP Route Reflectors

September 25, 2017

The ACI fabric makes use of route reflectors (MP-BGP) to distribute external routes within the fabric. To enable route reflectors in the ACI fabric, you must select the spine switches that will reflect routes, and you will need to configure a BGP autonomous system number for the fabric. Once route reflectors have been enabled, you … More Configuring ACI Fabric BGP Route Reflectors

ACI – Good links

September 8, 2017

Below are a list of “good links”, by category, for various ACI topics. This list is not all inclusive (yet), but as I find good links, they will be added! A great ACI Blog from Daniel Pita! https://dpitaci.wordpress.com/ VMM Integration Learning ACI VMM integration https://adamraffe.com/2015/02/27/learning-aci-part-8-vmm-integration/ MultiPod ACI MultiPod WhitePaper https://www.cisco.com/c/en/us/solutions/collateral/data-center-virtualization/application-centric-infrastructure/white-paper-c11-737855.html#_Toc463058887 ACI MultiSite and MultiPod … More ACI – Good links

ACI Endpoint Learning Best Practices

September 8, 2017

ACI fundamentally handles endpoint learning in a different manner than traditional network devices. This difference gives ACI the unique advantage of being able to limit flooding of ARP, Unknown Unicast, and other traffic types. As ACI has evolved, the best way to configure ACI, in an optimal way, has evolved as well. Below is a … More ACI Endpoint Learning Best Practices

Network Centric to ACI Centric Migration

September 8, 2017

The vast majority of ACI customers do not start out with an Application Centric deployment of ACI; mainly because they do not have a clear understanding of their applications and the vast amount of interdependencies. However, with the advent of Tetration and other 3rd party analytics tools, the knowledge about how your applications are connected … More Network Centric to ACI Centric Migration

L3out – Connecting to Active/Standby FW

August 3, 2017

A common use-case for ACI deployments is to attach a pair of firewalls northbound of ACI to filter traffic in and out of the fabric. For this use case, we will be using “UNMANAGED” mode to connect the FW pair, by attaching the firewall via an L3out (External Routed Connection), and pointing static routes (0.0.0.0/0) … More L3out – Connecting to Active/Standby FW