Mesh topology refers to a network setup wherein each node is connected to one or more other nodes. This many-to-many configuration allows data to be transmitted across multiple paths, even simultaneously, enhancing the reliability and redundancy of the network. In contrast to point-to-multipoint topology, mesh topology doesn't have a single central node to which other nodes connect. Instead, each node acts as a relay for data, and can transmit data to other nodes directly or indirectly through one or more intermediate nodes. This decentralised approach means that even if one node fails or a connection drops, the network can still function effectively as data will simply find a new path. This is a significant difference from point-to-multipoint topology, where a central node (the 'point') communicates directly with multiple other nodes. In this setup, if the central node fails, it will disrupt communication across the entire network. Mesh topology provides a more resilient and reliable network structure, particularly beneficial in wireless bridging where physical connections are not possible.