Standard Spanning Tree Protocol (802.1D) is a protocol specific to Cisco Switches and was developed to prevent loops that occur on the network. In the link or the cable failure that occurs on the network configured the Spanning Tree Protocol, it is calculated the routes for the packet outgoing to the destination.
The STP protocol OSI model was developed to block Loops in layer 2. STP UplinkFast were developed that STP convergence takes much time.
When a computer or server is connected to a Switch port, it can access the network and communicate with other devices. Layer 2 Switches cause network Loops, which can be prevented by the STP protocol.
When a switch is first turned on, all the connection points (interfaces) on it go through 4 states. These situations are; Blocking, Listening, Learning, and Forwarding port status. In addition, status 5 is disabled.
In today’s computer networks, network redundancy is very important. The continuity performance of network devices that are well configured on the network increases at the maximum level. Connecting the switches with more than one network cable means network redundancy.
The redundant paths implemented on a network enable the transmission of the data packet over another alternative cable in the event of failure of a cable used for data transmission.