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300-170 · Question #34

Why should you configure DHCP relay for Virtual Machine Manager integration?

The correct answer is B. to provide IP addresses to ESXi hosts. Configuring DHCP relay for Virtual Machine Manager (VMM) integration is necessary to enable ESXi hosts to dynamically obtain IP addresses from a DHCP server, facilitating their integration into the management domain.

Cisco Data Center Virtualization

Question

Why should you configure DHCP relay for Virtual Machine Manager integration?

Options

  • Ato create VTEP VMK interfaces on each host for the OpFlex control channel
  • Bto provide IP addresses to ESXi hosts
  • Cto provide IP addresses to virtual hosts through the VXLAN infrastructure
  • Dto ensure that virtual hosts have the same address when they are moved by using VMware

How the community answered

(57 responses)
  • A
    7% (4)
  • B
    88% (50)
  • C
    2% (1)
  • D
    4% (2)

Why each option

Configuring DHCP relay for Virtual Machine Manager (VMM) integration is necessary to enable ESXi hosts to dynamically obtain IP addresses from a DHCP server, facilitating their integration into the management domain.

Ato create VTEP VMK interfaces on each host for the OpFlex control channel

DHCP relay is not used to create VTEP VMK interfaces for the OpFlex control channel; VTEP creation is typically handled by the VMM domain or fabric infrastructure itself.

Bto provide IP addresses to ESXi hostsCorrect

DHCP relay is crucial for Virtual Machine Manager (VMM) integration to allow ESXi hosts to dynamically obtain IP addresses from a DHCP server that might reside on a different subnet, ensuring proper network connectivity for host management and VMM operation.

Cto provide IP addresses to virtual hosts through the VXLAN infrastructure

While DHCP can provide IP addresses to virtual machines, the question refers to DHCP relay for VMM integration, which primarily concerns the underlying ESXi hosts, not the VMs themselves through VXLAN.

Dto ensure that virtual hosts have the same address when they are moved by using VMware

DHCP provides dynamic IP addresses, which can change; to ensure a virtual host has the 'same address when moved' typically involves static IP configuration or IP mobility features beyond basic DHCP relay.

Concept tested: ACI VMM Integration DHCP Relay

Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/5x/config/cisco-aci-vmm-integration/b_Cisco_ACI_VMM_Integration_Guide_5x/b_Cisco_ACI_VMM_Integration_Guide_5x_chapter_0100.html

Topics

#DHCP relay#VMM integration#ESXi#IP addressing

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