The scenario
A three-router triangle topology connects Router A, Router B, and Router C in a redundant loop, with a server on Router A and a LAN switch/PC on Router B.
What is in this drawing
Read the decisions behind it.
01
Model the three routers as a ring of three direct links for redundancy without a full mesh.
02
Attach server to Router A and LAN access switch to Router B to distribute endpoints.
03
Use ring layout to visually emphasize the triangular loop.
Use for small WAN/core topologies where any router can route via two alternate paths but full mesh overhead is unnecessary.
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