The request
“A redundant campus network with three core routers in a triangle using 20G LAG links, and two distribution switches with 10G fiber uplinks to every core router.”
Then tryAdd an access switch below each distribution switch.Add an Internet edge firewall to Core Router A.
What is in this drawing
Read the decisions behind it.
01
Connect the three core routers pairwise with LAG links to form a resilient triangle core.
02
Provide dual fiber uplinks from each core router to both distribution switches for redundant paths.
03
Use 20G LAG inter-core links and 10G fiber uplinks for scalable bandwidth.
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.
More like this