Spanning Tree Protocol

Hi dear friend,

I bring some disadvantages:

Disadvantages of STP

STP ensures a loop-free network but has a slow network topology convergence speed, leading to service deterioration. If the network topology changes frequently, the connections on the STP-capable network are frequently torn down, causing frequent service interruption. Users can hardly tolerate such a situation.Disadvantages of STP are as follows:

• Port states or port roles are not subtly distinguished, which is not conducive to the learning and deployment for beginners.

A network protocol that subtly defines and distinguishes different situations is likely to outperform the others.

• • Ports in the Listening, Learning, and Blocking states do not forward user traffic and are not even slightly different to users.

• • The differences between ports in essence never lie in the port states but the port roles from the perspective of use and configuration.

            It is possible that the root port and designated port are both in the Listening state or Forwarding state.

• The STP algorithm determines topology changes after the time set by the timer expires, which slows down network convergence.

• The STP algorithm requires a stable network topology. After the root bridge sends configuration BPDUs, other devices process the configuration BPDUs so that the configuration BPDUs are advertised to the entire network.

This also slows down topology convergence.

Below is the link to a post I made that better address the subject based on Huawei's study material.

https://forum.huawei.com/enterprise/en/understanding-of-stp-evolution-from-stp-to-rstp/thread/735681-861

Hope this helps. hugs