ACI Multi-Pod Caveats and Considerations

  Originally I was going to create a detailed configuration guide for Multi-Pod, however, after checking out the the Cisco ACI MultiPod Configuration Whitepaper on CCO I realized I would be duplicating efforts at best. The configuration whitepaper on CCO contains detailed configuration examples for the IPN and screenshots from the APIC. If you are … More ACI Multi-Pod Caveats and Considerations

ACI Multi-Pod QOS

I’d like to thank Soumitra Mukherji for his work on this post! When configuring MultiPod, a frequently asked question that often comes up is how to configure QOS between the ACI Fabric and the IPN network, to ensure that critical ACI fabric traffic is not dropped. With this article, we will go through configuration examples of … More ACI Multi-Pod QOS

ACI: vPC in ACI

Prerequisites While there are no prerequisites, if you need a refresher on Fabric Access Policy Configurations inside of ACI (i.e., AAEP, Switch Profiles, Interface Profiles, Vlan Pools, Policy Groups), check out this post, Configuring Fabric Access Policies. vPC Overview A virtual port channel (vPC) allows links that are physically connected to two different ACI Leaf … More ACI: vPC in ACI

Deploying a Tenant across two-sites using the Multi-Site Controller in 3 easy steps

I’d like to thank Soumitra Mukherji for his work on this post! As of this posting, January 2018, Multipod for ACI has taken off and seen a good amount of field exposure amongst Cisco ACI customers.  There have been a number of customers who were going to deploy either dual ACI Fabrics or  Stretched ACI … More Deploying a Tenant across two-sites using the Multi-Site Controller in 3 easy steps

Transit Routing Use case – EIGRP with routed interfaces

Beginning with APIC code 1.1, Cisco introduced the ability to allow routes to “Transit” the fabric. Prior to this release, the ACI Fabric was only seen as a collection of “stub” networks, meaning that the ACI Fabric would only advertise Bridge Domain subnets; it would not advertise routes received from an external routing peer to … More Transit Routing Use case – EIGRP with routed interfaces

Network Centric to ACI Centric Migration

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

ACI: Configuring a shared external Layer-3 connection for all Tenants

As with most things with ACI, we have a tremendous amount of flexibility in the configuration options to meet different requirements. In this post, we’ll explore options that allow multiple Tenants to use a common, shared L3Out (routing table) for the entire fabric (as opposed to using a L3OUT per VRF). Assumptions: Only non-overlapping IP … More ACI: Configuring a shared external Layer-3 connection for all Tenants