Switch loop detection. If it's a managed switch, you can set ports that aren't connected to other switches as edge ports which prevents delayed startup. com The loop prevention feature of most switches is "Rapid Spanning Tree Protocol" or RSTP. When loop detection is enabled, the switch sends a probe packet every two seconds and waits for a response. Knowing how to identify the source of a switching loop is a good skill to have, but ideally, a network administrator will want to leverage protocols and technologies that prevent switching loops from occurring. Managed switches almost always have loop detection, called Spanning Tree Protocol. See full list on blogs. cisco. This feature operates separately from STP, ensuring protection under various network conditions. Jul 7, 2025 ยท Loop detection is an always-on feature of your switch that helps you identify and remove loops on your network. If the switch receives the same packet back on the same port it was sent from, it identifies a loop and disables that port. When a port comes up with a new link, the switch does not immediately join it to the switch fabric at-large. UniFi’s Loop Protection provides an extra layer of security by blocking ports when loops are detected, even if neighboring devices do not support STP. . Network loops can slow down or stop normal traffic on your network. enwkk vgen zuv kothwz vpfohm eivgzo shtk solaih nytjh nghtztl