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300-320 · Question #350

An Engineer is designing a Cisco Application Centric Infrastructure network. What is the expected number of links between Spine switches?

The correct answer is A. 0. Cisco ACI uses a strict spine-leaf (Clos) architecture. A fundamental rule of this design is that spine switches NEVER connect directly to other spine switches-the expected link count between spines is zero. All east-west and north-south traffic flows through leaf switches…

Advanced Data Center Networks

Question

An Engineer is designing a Cisco Application Centric Infrastructure network. What is the expected number of links between Spine switches?

Options

  • A0
  • B1
  • C2
  • D4

How the community answered

(51 responses)
  • A
    88% (45)
  • B
    6% (3)
  • C
    4% (2)
  • D
    2% (1)

Explanation

Cisco ACI uses a strict spine-leaf (Clos) architecture. A fundamental rule of this design is that spine switches NEVER connect directly to other spine switches-the expected link count between spines is zero. All east-west and north-south traffic flows through leaf switches. Spine-to-spine links would create loops and violate the two-tier ACI model. Each leaf connects to every spine, and spines connect only to leaf nodes (and external networks via border leaves).

Topics

#Cisco ACI#spine-leaf topology#spine interconnect#data center fabric

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