What is the main benefit of having an out-of-band management network for an infrastructure controller?

What is the main benefit of having an out-of-band management network for an infrastructure controller?
A. Data plane disruption is less likely.
B. It provides separation on the management and data planes.
C. Configuration of the controller is faster and simpler
D. It is less expensive.

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One thought on “What is the main benefit of having an out-of-band management network for an infrastructure controller?

  1. B
    About In-Band and Out-of-Band Management

    You can use in-band or out-of-band when designing the management plane and connectivity for the Cisco Application Centric Infrastructure (ACI) fabric. Out-of-band management utilizes its own set of specific ports that only exist on the out-of-band management plane. There is no configuration available to merge the out-of-band management plane into the data plane of the ACI fabric. Out-of-band management typically has its specifics ports connected to a device that only manages out-of-band network traffic.

    ref https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/1-x/ACI_Best_Practices/b_ACI_Best_Practices/b_ACI_Best_Practices_chapter_01000.html

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