300-320 · Question #146
A company requires real-time SAN replication between two remote locations. What is the standard path selection protocol for fabric routing?
The correct answer is A. FSPF. FSPF (Fabric Shortest Path First) is the standard link-state routing protocol used in Fibre Channel SANs to calculate the shortest path across fabric switches for data replication traffic.
Question
A company requires real-time SAN replication between two remote locations. What is the standard path selection protocol for fabric routing?
Options
- AFSPF
- BFICON
- CFCOE
- DSCSI
How the community answered
(43 responses)- A95% (41)
- C2% (1)
- D2% (1)
Why each option
FSPF (Fabric Shortest Path First) is the standard link-state routing protocol used in Fibre Channel SANs to calculate the shortest path across fabric switches for data replication traffic.
FSPF is the IEEE/ANSI-standard path selection protocol for Fibre Channel fabrics, functioning analogously to OSPF in IP networks. It maintains a topology database and computes optimal paths between FC switches (ISLs), making it the correct choice for routing SAN replication traffic between remote locations.
FICON is a Fibre Channel protocol variant used for IBM mainframe storage connectivity, not a fabric routing protocol.
FCoE (Fibre Channel over Ethernet) is an encapsulation standard for carrying FC frames over Ethernet, not a path selection protocol.
SCSI is a storage command protocol used at the host-to-storage layer and has no role in fabric routing or path selection.
Concept tested: FSPF as Fibre Channel fabric routing protocol
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/mds9000/sw/4_1/configuration/guides/cli/CLIConfigGuide/routing.html
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