SNAT Port Exhaustion in Sitecore Azure Paas Instances
When leveraging Deployment Slots as laid out in the Multisite Application Initialization for Zero Downtime Azure Deployments post, an issue kept arising on swap when we would see unhealthy instances and 500 errors. Digging into this, it was found that it was not swapping in bad or un-warmed up instances, rather it was experiencing SNAT …