200-155 · Question #170
Which description of switch discovery on a Cisco APIC is true?
The correct answer is B. The APIC assigns an IP address to the switch from a pool. During Cisco ACI fabric discovery, the APIC automatically detects newly connected switches and, following administrator admission, assigns a management IP address from a pre-configured pool.
Question
Which description of switch discovery on a Cisco APIC is true?
Options
- AOnly leaf switches 3re discovered automatically.
- BThe APIC assigns an IP address to the switch from a pool
- CA switch can be registered to multiple APIC clusters
- DA. switch registers with the APIC automatically
How the community answered
(21 responses)- A5% (1)
- B95% (20)
Why each option
During Cisco ACI fabric discovery, the APIC automatically detects newly connected switches and, following administrator admission, assigns a management IP address from a pre-configured pool.
Both leaf and spine switches are automatically discovered by the APIC using protocols like LLDP, not just leaf switches.
When a switch is connected to the ACI fabric and discovered by the APIC, upon its admission to the fabric by an administrator, the APIC assigns an out-of-band management IP address to the switch from a pre-defined management IP address pool.
A Cisco ACI switch can only be registered to a single APIC cluster and belong to one ACI fabric at a time for management and control.
While switches are automatically *discovered* by the APIC, the actual *registration* (admitting it to the fabric and assigning a Node ID) typically requires administrator intervention through the APIC GUI/CLI.
Concept tested: Cisco ACI switch discovery and provisioning
Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/5x/sw/getting-started/cisco-aci-getting-started-guide-501/m_cisco_aci_device_discovery.html
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