Telecom Topic Discussion

 interview L1/L2 Answer 1. What is BPDU Guard? BPDU (Bridge Protocol Data Unit) Guard is a feature in networking that is used to protect the network from potential loops. It disables a port when a BPDU is received on a port that is configured with PortFast, which is typically used for end devices like computers. By disabling the port, BPDU Guard helps to prevent misconfigurations and potential loops in the network. 2. What is loop-back detect? Loop-back detection is a network feature that helps to identify and mitigate network loops. Network loops can cause broadcast storms and network congestion. Loop-back detection mechanisms typically send out special frames to detect loops in the network topology and, upon detection, disable the affected ports to prevent the loop from impacting the network. 3. What is the Spanning Tree Protocol (STP)? How are loops avoided in STP? The Spanning Tree Protocol (STP) is a network protocol that ensures a loop-free topology for Ethernet networks. STP avo