dev to prod: A network programmability demo with ACI

One of the main benefits of ACI is the flexibility it offers. In particular, how easy it is to take configuration we have already completed, copy it, and re-use it for something else! For this demo, we’ll take configuration from Tenant dev, and copy the entire policy configuration to make a new Tenant called Tenant … More dev to prod: A network programmability demo with ACI

STP and ACI: Intermittent packet loss due to TCNs

One issue that can arise when we connect ACI and Legacy STP environments is intermittent packet loss to ACI endpoints due to Spanning-tree TCNs. TCNs will trigger ACI to flush endpoints in the EPG on which the TCN was received. ACI does re-learn the endpoints based on normal data-plane learning, but if the TCNs are … More STP and ACI: Intermittent packet loss due to TCNs

Logging ACL/Contract Permits and Denies with ACI

Did you know that you can enable logging for permitted and denied traffic that flows through your ACI Fabric? While this feature is not meant as a replacement for Tetration or Netflow, this can be a great tool for troubleshooting and examining traffic that is flowing through applications that reside in your ACI Fabric. In … More Logging ACL/Contract Permits and Denies with ACI