300-170 · Question #56
Refer to the exhibit. For which option is the L3OUT-1 connection used?
The correct answer is B. private network CIX1. Based on standard ACI object hierarchy, an L3Out connects to a specific private network (VRF) to provide external Layer 3 connectivity. Therefore, L3OUT-1 would be used for the private network CIX1.
Question
Refer to the exhibit. For which option is the L3OUT-1 connection used?
Exhibit
Options
- Abridge domain BD2
- Bprivate network CIX1
- Cprivate network Network-2
- Dbridge domain BD1
How the community answered
(19 responses)- A26% (5)
- B53% (10)
- C16% (3)
- D5% (1)
Why each option
Based on standard ACI object hierarchy, an L3Out connects to a specific private network (VRF) to provide external Layer 3 connectivity. Therefore, L3OUT-1 would be used for the private network CIX1.
An L3Out connects to a private network (VRF), not directly to a bridge domain. Bridge domains are part of the private network.
In Cisco ACI, an L3Out (Layer 3 Outside) configuration object is always associated with a Private Network (VRF) to provide external connectivity for that specific VRF. Therefore, L3OUT-1 would be connected to and used for the private network CIX1, as indicated by common naming conventions and ACI architecture.
If L3OUT-1 is shown connected to CIX1 in the exhibit, then it would not be used for a different private network like Network-2.
Similar to choice A, an L3Out connects to a private network (VRF), not directly to a bridge domain.
Concept tested: ACI L3Out to Private Network mapping
Source: https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/6x/config/layer3/cisco-aci-layer3-configuration-guide-60x/m_l3out_overview.html#Cisco_Concept.dita_a0c9b0e2-632b-45e0-9e5c-20cf25e0a0ea
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