HP0-J73 · Question #96
A customer wants to enable a long distance (~50km/31miles) replication for their Fibre Channel- Based enterprise storage solution. Because of budget restrictions, they want a low-cost solution that…
The correct answer is D. IP Distance Gateway. An IP Distance Gateway uses FCIP to tunnel Fibre Channel frames over a standard IP/WAN network, enabling low-cost long-distance storage replication without dedicated fiber infrastructure.
Question
A customer wants to enable a long distance (~50km/31miles) replication for their Fibre Channel- Based enterprise storage solution. Because of budget restrictions, they want a low-cost solution that supports replication. Which type of solution meet these requirements?
Options
- ANetwork Storage Router
- BExtended SAN switch
- CWAN Accelerator
- DIP Distance Gateway
How the community answered
(31 responses)- A3% (1)
- B13% (4)
- C6% (2)
- D77% (24)
Why each option
An IP Distance Gateway uses FCIP to tunnel Fibre Channel frames over a standard IP/WAN network, enabling low-cost long-distance storage replication without dedicated fiber infrastructure.
A Network Storage Router translates between storage protocols such as FC and iSCSI at a local level but is not designed to extend SAN replication across a WAN.
Extended SAN switches use optical distance extension technologies such as DWDM to stretch a SAN, but these solutions carry significant hardware costs that conflict with the stated budget restrictions.
A WAN Accelerator optimizes general application traffic through compression and deduplication but does not provide the FC protocol encapsulation needed to carry Fibre Channel replication traffic over an IP network.
An IP Distance Gateway implements FCIP (Fibre Channel over IP), which encapsulates FC frames inside TCP/IP packets for transmission across a standard IP WAN. This reuses existing IP infrastructure instead of requiring expensive dedicated optical links or DWDM equipment, making it the most cost-effective method for extending FC replication to distances of approximately 50km.
Concept tested: FC long-distance replication using FCIP over IP WAN
Source: https://www.cisco.com/c/en/us/tech/storage-networking/fibre-channel-over-ip-fcip/index.html
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