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300-620 · Question #140

A network engineer is integrating a new Hyperflex storage duster into an existing Cisco ACI fabric. The Hyperflex cluster must be managed by vCenter, so a new vSphere Distributed switch must be…

The correct answer is B. Configure an Interface Policy group, select LLDP, and apply it to the selected interfaces. To integrate a Hyperflex cluster managed by vCenter with a vSphere Distributed Switch, the engineer must configure an Interface Policy group to use LLDP, a vendor-neutral discovery protocol, and apply it to the relevant interfaces.

Integrations

Question

A network engineer is integrating a new Hyperflex storage duster into an existing Cisco ACI fabric. The Hyperflex cluster must be managed by vCenter, so a new vSphere Distributed switch must be created. In addition, the hardware discovery must be performed by a vendor-neutral discovery protocol. Which set of steps meets these requirements?

Options

  • AConfigure an Interface Policy group, select CDP, and apply it to the desired interfaces.
  • BConfigure an Interface Policy group, select LLDP, and apply it to the selected interfaces.
  • CConfigure a Switch Policy group, select LLDP, and apply it to the indicated interfaces.
  • DConfigure an Interface Policy group, select CDP, and apply it to the designated interfaces.

How the community answered

(22 responses)
  • A
    18% (4)
  • B
    73% (16)
  • C
    5% (1)
  • D
    5% (1)

Why each option

To integrate a Hyperflex cluster managed by vCenter with a vSphere Distributed Switch, the engineer must configure an Interface Policy group to use LLDP, a vendor-neutral discovery protocol, and apply it to the relevant interfaces.

AConfigure an Interface Policy group, select CDP, and apply it to the desired interfaces.

Cisco Discovery Protocol (CDP) is a proprietary Cisco protocol and is not considered vendor-neutral, failing to meet the requirement for hardware discovery by a vendor-neutral protocol.

BConfigure an Interface Policy group, select LLDP, and apply it to the selected interfaces.Correct

To ensure vendor-neutral hardware discovery for vSphere Distributed Switches and Hyperflex integration, Link Layer Discovery Protocol (LLDP) must be configured. This is achieved by creating an Interface Policy group in Cisco ACI, enabling LLDP within this group, and then applying it to the specific interfaces connected to the Hyperflex cluster or ESXi hosts. LLDP is a standard protocol compatible with heterogeneous network environments, unlike proprietary CDP.

CConfigure a Switch Policy group, select LLDP, and apply it to the indicated interfaces.

While LLDP is the correct vendor-neutral protocol, a Switch Policy group is used for switch-level settings (e.g., control plane policies) and is not the appropriate mechanism to apply discovery protocols to individual host-facing interfaces; Interface Policy groups are used for port-specific configurations.

DConfigure an Interface Policy group, select CDP, and apply it to the designated interfaces.

Similar to option A, Cisco Discovery Protocol (CDP) is a proprietary Cisco protocol and does not satisfy the requirement for a vendor-neutral discovery protocol.

Concept tested: ACI LLDP for vCenter integration

Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/5x/l2-configuration/cisco-aci-layer2-configuration-guide-50x/m_discovery_protocols.html

Topics

#VMM integration#Hyperflex#vCenter#LLDP

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