Why does my switch show STP blocking on the port connecting with the other switch?

Zyxel_Melen
Zyxel_Melen Posts: 2,753  Zyxel Employee
Zyxel Certified Network Engineer Level 1 - Switch Zyxel Certified Network Administrator - Switch Zyxel Certified Network Administrator - Nebula Zyxel Certified Sales Associate
  1. The nebula switch enables RSTP to prevent a loop in the ring topology by default. If your topology is a ring topology, one of the ports will be blocked by RSTP. If the ring topology is not your expected topology, please check your connections.
  2. If you set LACP but the connecting device hasn’t set LACP, Nebula will show blocking on the dashboard. Please set LACP on the connecting device.

Zyxel Melen