QuestionQ57

Architect the solution

Refer to the exhibit.

Question Image

You are designing a data-center network. The customer requests connectivity between the data center and campus core switches. The customer uses VLANs for segmentation, but does not use VRFs.

What is the recommended design for the links between the data-center core switches and the campus core switches?

  • A Each link should be a routed-only port (ROP) in a /31 subnet.
  • B Link 1 and Link 3 should be one VSX LAG. Link 2 and Link 4 should be another VSX LAG.
  • C All links should be in the same VSX LAG.
  • D Link 1 and Link 2 should be one VSX LAG. Link 3 and Link 4 should be another VSX LAG.
Explanation

A VSX LAG spans the two VSX switches and presents them as one LACP partner to an upstream or downstream device. Each campus-core switch therefore uses its two physical connections—one to each data-center VSX member—as a separate VSX LAG: links 1 and 2 form one LAG, and links 3 and 4 form the other. This preserves the required Layer 2 VLAN connectivity and provides redundant active links.

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