What are the differences between a ring topology and a mesh topology?

• Every node in a ring topology is linked to its left and right side nodes. Mesh topology connects nodes completely via dedicated link.
•  Ring topology has a low cost. Mesh topology is expensive.
• If there are N nodes, there are N links in ring topology. If there are N nodes, there are N(N-1)/2 links in Mesh topology.
• In ring topology, information travels in one direction from node to node in a ring. Information travels from node to node in a mesh topology.
• The ring topology is not very extensible. Mesh topology is also limited in its extensibility.
• Mesh topology is commonly used for WAN. In LAN, ring topology is used.

Read More: Is star topology better than mesh topology?