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300-620 · Question #189

What two actions should be taken to deploy a new Cisco ACI Multi-Pod setup? (Choose two.)

The correct answer is D. Configure the TEP pool of the new pod to be routable across the IPN. E. Increase interface MTU for all IPN routers to support VXLAN traffic.. Deploying a Cisco ACI Multi-Pod setup requires specific Inter-Pod Network (IPN) configurations to facilitate inter-pod communication for VXLAN traffic.

Multi-Pod and Multi-Site

Question

What two actions should be taken to deploy a new Cisco ACI Multi-Pod setup? (Choose two.)

Options

  • AConfigure MP-BGP on IPN routers that face the Cisco ACI spines.
  • BConnect all spines to the IPN.
  • CConfigure anycast RP for the underlying multicast protocol
  • DConfigure the TEP pool of the new pod to be routable across the IPN.
  • EIncrease interface MTU for all IPN routers to support VXLAN traffic.

How the community answered

(19 responses)
  • A
    5% (1)
  • B
    5% (1)
  • C
    11% (2)
  • D
    79% (15)

Why each option

Deploying a Cisco ACI Multi-Pod setup requires specific Inter-Pod Network (IPN) configurations to facilitate inter-pod communication for VXLAN traffic.

AConfigure MP-BGP on IPN routers that face the Cisco ACI spines.

MP-BGP EVPN is configured on ACI spines, not on the IPN routers themselves, which only provide IP routing services between pods.

BConnect all spines to the IPN.

Connecting all spines to the IPN is a physical prerequisite but not a configuration action for deployment.

CConfigure anycast RP for the underlying multicast protocol

Configuring anycast RP is crucial for efficient BUM (Broadcast, Unknown-Unicast, Multicast) traffic handling over the IPN, but it is one of several important IPN configurations, and the question asks for two fundamental actions, which D and E represent more broadly for any traffic type.

DConfigure the TEP pool of the new pod to be routable across the IPN.Correct

The TEP (Tunnel End Point) pool of each pod must be configured to be routable across the IPN so that VXLAN tunnels can be established between pods for data plane traffic forwarding.

EIncrease interface MTU for all IPN routers to support VXLAN traffic.Correct

The MTU (Maximum Transmission Unit) on all IPN router interfaces must be increased (typically to 1550 bytes or more) to accommodate the additional overhead introduced by VXLAN encapsulation without fragmenting packets.

Concept tested: Cisco ACI Multi-Pod IPN requirements

Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/5x/multi-pod/cisco-aci-multi-pod-config-guide-501/m_multi-pod_prerequisites.html

Topics

#Multi-Pod deployment#IPN configuration#TEP pool#MTU#VXLAN

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