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What does Spanning Tree Protocol prevent?
The Spanning Tree Protocol (STP) is a network protocol that is used to eliminate bridge loops in Ethernet LANs. STP prevents network loops and associated network outage by blocking redundant links or paths. The redundant paths can be used to keep the network operational if the primary link fails.
What is STP loop protection?
Loop protection increases the efficiency of STP, RSTP, and MSTP by preventing ports from moving into a forwarding state that would result in a loop opening up in the network. When loop protection is enabled, the spanning-tree topology detects root ports and blocked ports and makes sure both keep receiving BPDUs.
What is STP protocol in networking?
Spanning Tree Protocol (STP) is a link management protocol that provides path redundancy while preventing undesirable loops in the network. When it comes to ethernet networks, only one active path can exist between two stations in order for them to function properly.
How to control unwanted UDP traffic ( broadcast and multicast )?
Broadcast storm – There could be a switch that is uplinking to another switch that does not have STP enabled. This switch loop can cause broadcast packets to be re-transmitted down paths that have already seen the message. LAN re-architecture (most probable) – This is a heavy stream oriented business.
When does STP not create a switching loop?
STP never opens a port until it is absolutely sure that the port can be opened without creating a switching loop. If a port is put into Forwarding state by STP, it is already established that it can be done safely. Thus, STP is not reacting to the loop creation – on the contrary, it is preventing it.
How is the spanning tree protocol used in multicast?
Switches flood traffic out all ports, when the traffic needs to be sent to a destination that is not yet known. Broadcast and multicast traffic is forwarded out to every port, apart from the port on which the traffic arrived. The Spanning-Tree Protocol is used to create a loop-free logical topology from a physical topology that has loops.
What is the purpose of the STP protocol?
STP Protocol is defined as a link management protocol designed to support redundant links that stops switching loops in the STP network.