300-620 · Question #1
When Cisco ACI connects to an outside Layers 2 network, where does the ACI fabric flood the STP BPDU frame?
The correct answer is C. within the access encap VLAN. The ACI fabric is an IP-based fabric that implements an integrated overlay, allowing any subnet to be placed anywhere in the fabric and supports a fabric-wide mobility domain for virtualized workloads. STP is not required within the ACI fabric and leaf. The spine and APIC don’t…
Question
When Cisco ACI connects to an outside Layers 2 network, where does the ACI fabric flood the STP BPDU frame?
Options
- Awithin the bridge domain
- Bwithin the APIC
- Cwithin the access encap VLAN
- Dbetween all the spine and leaf switches
How the community answered
(48 responses)- A4% (2)
- C94% (45)
- D2% (1)
Explanation
The ACI fabric is an IP-based fabric that implements an integrated overlay, allowing any subnet to be placed anywhere in the fabric and supports a fabric-wide mobility domain for virtualized workloads. STP is not required within the ACI fabric and leaf. The spine and APIC don’t run STP When connecting to an outside layer 2 network, the ACI fabric floods the STP BPDU frame within the boundary of the EPG. External switches are expected to break any potential loop upon receiving the flooded BPDU from the ACI fabric. Figure 69 depicts this process. infrastructure/white-paper-c07-732033.html#_Toc395143573
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