SG0-001 · Question #394
Which of the following enforces hard zoning within a fabric?
The correct answer is D. ASIC. Hard zoning in a Fibre Channel fabric is enforced at the hardware level by the Application Specific Integrated Circuits (ASICs) within the Fibre Channel switches. These ASICs control port access, physically preventing unauthorized communication.
Question
Which of the following enforces hard zoning within a fabric?
Options
- AName Server
- BInitiator
- CTarget
- DASIC
How the community answered
(22 responses)- A5% (1)
- B5% (1)
- D91% (20)
Why each option
Hard zoning in a Fibre Channel fabric is enforced at the hardware level by the Application Specific Integrated Circuits (ASICs) within the Fibre Channel switches. These ASICs control port access, physically preventing unauthorized communication.
The Name Server provides mapping services (WWN to Port ID) within the fabric, but it does not enforce zoning rules.
An Initiator is a device that requests storage services, such as a server Host Bus Adapter (HBA), and is subject to zoning, but does not enforce it.
A Target is a device that provides storage services, such as a storage array port, and is subject to zoning, but does not enforce it.
Application Specific Integrated Circuits (ASICs) in Fibre Channel switches are responsible for the physical enforcement of hard zoning rules. They control which switch ports can communicate with each other, effectively blocking frames from unauthorized sources at the hardware layer for stringent security.
Concept tested: Fibre Channel hard zoning enforcement
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/6_2/configuration/guides/zoning/zoning_config/overview.html
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