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NETWORK DIAGRAM

Redundant Campus Triangle Core with Dual Uplinks

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UPDATED 2026-09-21
TYPENetwork
USE-CASETriangle Router Topology
EXAMPLERedundant Campus Triangle Core with Dual Uplinks
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CASE ANALYSIS

Scenario

A campus core requires high availability through three routers arranged in a full-mesh triangle, each with dual uplinks to distribution layer switches to eliminate single points of failure.

Key decisions

  • Connect the three core routers pairwise with LAG links to form a resilient triangle core.
  • Provide dual fiber uplinks from each core router to both distribution switches for redundant paths.
  • Use 20G LAG inter-core links and 10G fiber uplinks for scalable bandwidth.

When to reuse this

Use this pattern when documenting or designing a redundant campus core where any core router or core link can fail without isolating the distribution layer.

← See more triangle router topology examples
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