If you already have resources deployed in Azure, you can now connect your brownfield vNETS to the Azure cAPIC vNETs using vNET Peering. This means your connectivity from ACI Fabric vNETS to the brownfield vNETS can go over Azure’s backbone directly. Security Policies can be attached for this connectivity based on requirements. You can follow … More Cloud ACI 5.2: Azure Brownfield Integration with ACI Fabric
If you have 2 or more Cloud Fabrics in the same Cloud Provider you can now (from cAPIC 5.2) use the Cloud Providers backbone for interconnecting these Data Centers (DCI). Prior to this you needed to build IPSec tunnels over the Internet between the sites to achieve this. This gives you the benefit of high … More Cloud ACI 5.2: Interconnecting ACI Fabrics Over Cloud Provider’s Backbone at High Speed for both AWS and Azure
This is a running list of ACI/IPV6 support notes that I will add to as I learn more items. Most of the items here have been taken from Cisco ACI Infrastructure Fundamentals Release 5.1(x), Networking and Managemcnt Connectivity. In addition I’ve also added items here that I’ve obtained by querying the field. Supported: IPv4 only, … More ACI with IPv6
Starting from ACI Release 5.0(1) Cisco has started supporting ACI SR-MPLS handoff for L3 Outs. If you are not familiar with Segment Routing concepts do not despair. Once you see the benefits of using Segment Routing you will realize why this is such a good way of doing L3 Outs. If you are familiar with … More ACI SR-MPLS Handoff for L3 Outs
In Release 5.0 of ACI a new feature, ESGs was released. This feature effectively allows us to decouple the security policy construct FROM EPGs which have a relationship to BDs TO ESGs which have a relationship to VRFs. I had planned to read up on this feature and rewrite the previous article that I had … More Using ESGs (Endpoint Security Group) in ACI fabric to migrate from Network Centric to Application Centric
Being organized and creating consistent configurations is a great virtue in the Networking / SDN / Cloud and computing field. ACI is no exception to that rule. Haphazard, Inconsistent and thoughtless configurations will increase your work and complexity/understanding of your infrastructure once your Fabric grows. In addition it will make it more prone to failures … More Understanding ACI TCAM Utilization & Optimization
In a previous article for Multinode Service Graphs with Horizontal Scaling of Firewalls for East/West traffic on Azure I had described and guided you step by step on how to configure and test that scenario. I have had quite a few folks reach out to me and request that I do a similar writeup for … More ACI/Cloud Extension Usage Primer (Azure) – Multi-Node Service Graph with North South Firewall Scaling using vNET peering and hosting service devices in HUB vNET (overlay-2)
Recently I had the pleasure to work with the fine folks at the Cisco Proof of Concept labs in Research Triangle Park, NC. Because of the unique times we live in, this normally onsite event was constrained to a virtual event, where we set on WebEx meetings throughout the week and ran through various test … More CPOC Series: Exploring ACI
In this video we explore using Policy Based Redirects to identify either a subset or ALL traffic between EPGs and forcing that traffic to an external device, in our case, an ASA FW. In our case, our ACI Fabric is the L3GW for all traffic. With the PBR feature, we are going to use an … More CPOC Series: ACI Service Chaining using Policy Based Redirect (PBR) for east-to-west traffic through an ASA FW
In this video we explore the design practices of attaching multiple EPGs to a BD. There are several use-cases for this, including but not limited to: Application-centric design Not having to re-address servers that you want to split up (i.e., separating web servers from app servers from db servers in the same subnet) Compliance (i.e., … More CPOC Series: Achieving Segmentation in ACI by Attaching multiple EPGs to one Bridge Domain