What must be configured to allow SNMP traffic on ACI switches?

Question

Options

• Aan out-of-band contract
• Ban out-of-band management interface
• CSNMP relay Policy
• Dan out-of-band bridge domain

• A
  73% (29)
• B
  8% (3)
• C
  15% (6)
• D
  5% (2)

Explanation

In Cisco ACI, SNMP traffic to fabric switches uses the out-of-band (OOB) management network, and ACI's policy model requires an OOB contract to explicitly permit that traffic between the external management network and the switch's OOB EPG - without it, SNMP polling is silently dropped.

Why the distractors are wrong:

• B (OOB management interface): The OOB interface is a prerequisite (you need the interface configured), but it alone does not allow SNMP traffic - the contract is still required to permit communication.
• C (SNMP relay policy): This doesn't exist as a standalone ACI construct; SNMP doesn't need relay configuration the way DHCP does.
• D (OOB bridge domain): ACI's OOB management uses a node management EPG, not a bridge domain - bridge domains belong to in-band constructs.

Memory tip: Think of ACI's zero-trust model - nothing is allowed without a contract. Even management traffic on the OOB network needs a contract to flow, so whenever a question asks "what allows [protocol] to reach ACI switches via management," the answer involves a contract.

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