What is spanning tree protocol with example?
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.
What is spanning tree topology?
The Spanning Tree Protocol (STP) is a network protocol that builds a loop-free logical topology for Ethernet networks. The basic function of STP is to prevent bridge loops and the broadcast radiation that results from them. RSTP was designed to be backwards-compatible with standard STP.
How do you explain spanning tree?
A spanning tree is a subset of Graph G, which has all the vertices covered with minimum possible number of edges. Hence, a spanning tree does not have cycles and it cannot be disconnected.. By this definition, we can draw a conclusion that every connected and undirected Graph G has at least one spanning tree.
Is Spanning Tree Protocol still used?
Spanning Tree Protocol (STP) is dead, or at least it should be. STP still only has one focal point (root) and can only have one forwarding path toward that one device. Yes, we can use technologies like EtherChannel to help hide portions of the topology for STP, but STP does NOT do multipath forwarding!
What causes spanning tree topology changes?
The network topology can happen in a network due to different reasons like a link failure, a Switch (Bridge) failure, or a port transitioning to forwarding state. The Root Switch (Bridge) bridge broadcasts the topology change information into the whole network.
How does Cisco STP work?
The Spanning Tree Protocol (STP) is responsible for identifying links in the network and shutting down the redundant ones, preventing possible network loops. In order to do so, all switches in the network exchange BPDU messages between them to agree upon the root bridge. The root bridge needs to be elected.
How does Cisco spanning tree work?
The Spanning Tree Protocol (STP) is responsible for identifying links in the network and shutting down the redundant ones, preventing possible network loops. In order to do so, all switches in the network exchange BPDU messages between them to agree upon the root bridge.
Why we use STP in networking?
STP was created to avoid the problems that arise when computers exchange data on a local area network (LAN) that contains redundant paths. STP can help prevent bridge looping on LANs that include redundant links. Without STP, it would be difficult to implement that redundancy and still avoid network looping.
Why do we use Spanning Tree Protocol?
Spanning Tree Protocol (STP) is a Layer 2 network protocol used to prevent looping within a network topology. STP can help prevent bridge looping on LANs that include redundant links. Without STP, it would be difficult to implement that redundancy and still avoid network looping.
What can I use instead of STP?
The two most often discussed alternatives to STP are Shortest Path Bridging (SPB) and Transparent Interconnect of Lots of Links (TRILL). HP is an example of a vendor that appears to be equally committed to both alternatives.
What happens when a spanning tree topology is established?
Once the Spanning Tree Topology (STP) is established, STP continues to work until some changes occurs. Manual changes that Network Engineer can apply are configuration of Bridge ID and port costs. Also there are other changes like the addition of switch or failure of port of an existing switch.
Which is the best example of tree topology?
Example of tree topology: 1 Different floors can be connected to each other through combining star topology network and central bus backbone 2 B-trees looks same as tree topology and it is used in different programming languages like MySQL, Redis, PostgreSQL and… More
How does Rapid Spanning Tree Protocol ( RSTP ) work?
Rapid Spanning Tree Protocol (RSTP) is a network protocol that ensures a loop-free topology for Ethernet networks. The Spanning Tree Protocol requires a STP network device to exchange messages to help from a loop-free logic topology. These messages are called BPDUS ( Bridge Protocol Data Units).
How is a redundant link found in a spanning tree?
To finds a redundant link, it uses an algorithm, known as the STA (spanning-tree algorithm). The STA algorithm first creates a topology database then it finds and disables the redundant links. Once redundant links are disabled, only the STP-chosen links remain active.