An engineer is implementing Cisco ACI at a large platform-as-a-service provider using APIC controllers, 9396PX leaf switches, and 9336PQ spine switches.
The leaf switch ports are configured as IEEE 802.1p ports.
Where does the traffic exit from the EPG in IEEE 802.1p mode in this configuration?
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A. B. C. D.A.
In Cisco ACI, Endpoint Groups (EPGs) are used to define the connectivity and policies for a group of endpoints, such as virtual machines, physical servers, or containers. EPGs can be associated with VLANs or can use IEEE 802.1p tagging.
In this scenario, the leaf switch ports are configured as IEEE 802.1p ports. IEEE 802.1p is a standard for prioritizing traffic in a network by assigning a priority value (0-7) to Ethernet frames. When IEEE 802.1p tagging is used, the VLAN tag in the Ethernet frame is replaced with a priority tag.
When traffic exits from an EPG in IEEE 802.1p mode, it will exit from the leaf ports tagged with the priority value assigned to that traffic. The VLAN tag is not used in this mode. Therefore, options A, C, and D are incorrect.
Option B, which states that the traffic exits from leaf ports untagged, is also incorrect because IEEE 802.1p mode requires the use of priority tagging.
To summarize, the correct answer is: E. from leaf ports tagged with the priority value assigned to that traffic.