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Cisco ACI > Concepts > Flashcards

Concepts Flashcards

Key Concepts of ACI

1
Q

What is the name of the ACI architecture?

A

Spine and Leaf

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2
Q

Which devices do leaf switches connect to?

A

Spine Only

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3
Q

Where is the forwarding controlled in the ACI Fabric, hardware or software?

A

Hardware

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4
Q

How many potential blocking ports are on a 48 port leaf switch?

A

None

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5
Q

Which protocol do fabric devices use to discover each other?

A

LLDP

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6
Q

What does the ACI fabric do to all traffic entering the fabric.

A

Normalization (to an endpoint group using VXLAN)

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7
Q

How are bridge semantics (TTL, MAC Header) treated for intra subnet traffic.

A

Preserved - No TTL decrements.

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8
Q

How are non IP packets handled by the fabric?

A

Forwarded based on mac address.

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9
Q

Is the ACI Fabric stateless or stateful?

A

Stateless. i.e. The network can continue to function if the control plane (ACI controller) is removed.

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10
Q

What is BUM traffic?

A

Broadcast
Unknown-Unicast
Multicast

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Cisco ACI (4 decks)

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