Update 8/28/2022 3:16 AM: The failed hardware has been replaced and full redundancy has been restored.
Today 8/27/2022, around 6:20 PM Sonic experienced a hardware failure on one of our main edge routers. The symptoms indicated a restart of the affect line card would resolve the issue, so we did so. Upon booting, the previously failed interfaces began discarding all outbound traffic, causing routing failures towards some internet destinations from 7:00 PM to 7:15 PM. We have taken the affected piece of hardware out of service and our redundant edge router is taking over the traffic. As of now, we appear to be stable. We are working on dispatching out to replace the failed hardware to restore full redundancy.
-Network Engineering