A municipal team duplicates the same subnet in both data centers without intentional stretch and then sees routing conflicts. What addressing lesson applies?
Select an answer to reveal the explanation.
Short Explanation
Copy-pasting the same subnet into both DCs without stretch or NAT is how routing fights start. Overlap needs an intentional stretch or re-IP/NAT plan.
Full Explanation
Identical subnets instantiated independently in two DCs without intentional L2 stretch create overlapping prefixes and routing ambiguity when those sites interconnect at Layer 3. Valid approaches include deliberate L2 stretch for a shared subnet, re-IP into unique space, or controlled NAT—not accidental overlap. Addressing policy and stretch choice must be designed together.