nerdexam
Cisco

300-620 · Question #105

An engineer is in the process of discovering a new Cisco ACI fabric consisting of two spines and four leaf switches. The discovery of leaf 1 has just been completed. Which two nodes are expected to…

The correct answer is A. spine 1 C. spine 2. After the initial discovery of an ACI leaf switch, the fabric discovery process proceeds to detect and onboard the spine switches connected to that leaf.

ACI Fabric Infrastructure

Question

An engineer is in the process of discovering a new Cisco ACI fabric consisting of two spines and four leaf switches. The discovery of leaf 1 has just been completed. Which two nodes are expected to be discovered next? (Choose two.)

Options

  • Aspine 1
  • Bleaf 4
  • Cspine 2
  • Dleaf 3
  • Eleaf 2

How the community answered

(17 responses)
  • A
    88% (15)
  • B
    6% (1)
  • E
    6% (1)

Why each option

After the initial discovery of an ACI leaf switch, the fabric discovery process proceeds to detect and onboard the spine switches connected to that leaf.

Aspine 1Correct

In Cisco ACI fabric discovery, once a leaf switch (Leaf 1 in this case) is discovered and operational, it then facilitates the discovery of the spine switches to which it is physically connected, which are typically all spines in the fabric, such as Spine 1.

Bleaf 4

Other leaf switches (leaf 4, leaf 2, leaf 3) are also discovered by the APIC, but the immediate next step after a leaf's discovery is to discover its connected spines.

Cspine 2Correct

Following Leaf 1's discovery, it reports its neighbors, leading to the discovery of the spine switches connected to it; therefore, Spine 2, along with Spine 1, would be expected to be discovered next as Leaf 1 typically connects to all spines.

Dleaf 3

Other leaf switches (leaf 4, leaf 2, leaf 3) are also discovered by the APIC, but the immediate next step after a leaf's discovery is to discover its connected spines.

Eleaf 2

Other leaf switches (leaf 4, leaf 2, leaf 3) are also discovered by the APIC, but the immediate next step after a leaf's discovery is to discover its connected spines.

Concept tested: Cisco ACI fabric discovery process

Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/5x/sw-install-upgrade/cisco-apic-installation-upgrade-guide-52x/cisco-apic-installation-upgrade-guide-52x_chapter_011.html#d2729e1022a1635

Topics

#fabric discovery#spine-leaf#APIC discovery

Community Discussion

No community discussion yet for this question.

Full 300-620 Practice