SG0-001 · Question #110
Which of the following layers of the FCP are replaced by Ethernet when using FCoE?
The correct answer is A. FC0 and FC1. When using Fibre Channel over Ethernet (FCoE), the lower Fibre Channel Protocol (FCP) layers, FC0 and FC1, are replaced by the Ethernet network stack.
Question
Which of the following layers of the FCP are replaced by Ethernet when using FCoE?
Options
- AFC0 and FC1
- BFC1 and FC2
- CFC2 and FC4
- DFC3 and FC4
How the community answered
(23 responses)- A87% (20)
- B4% (1)
- C9% (2)
Why each option
When using Fibre Channel over Ethernet (FCoE), the lower Fibre Channel Protocol (FCP) layers, FC0 and FC1, are replaced by the Ethernet network stack.
Fibre Channel over Ethernet (FCoE) encapsulates Fibre Channel frames directly over Ethernet, effectively replacing the physical layer (FC0) and the data link layer (FC1) of the Fibre Channel protocol with Ethernet's equivalent layers.
FC2 is the common services layer and is encapsulated by FCoE, not replaced, while FC1 is replaced.
FC2 (common services) and FC4 (protocol mapping) are higher-level Fibre Channel layers that are preserved and encapsulated by FCoE, not replaced.
FC3 (common services) and FC4 (protocol mapping) are higher-level Fibre Channel layers that are preserved and encapsulated by FCoE, not replaced.
Concept tested: FCoE layer replacement
Source: https://www.cisco.com/c/en/us/products/switches/nexus-5000-series-switches/fiber-channel-over-ethernet-fcoe-faq.html
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