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AR/DAT (Autonomous Regions with Domain Address Translation) Native FC Solution. LightSand Communications. Why thinking AR?. It Resolves Scalability Issue Number of switches in the fabric Number of devices in the fabric Recourses: NS, Zoning database size Traffic disruption - PowerPoint PPT Presentation
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AR/DAT(Autonomous Regions with Domain Address Translation)
Native FC Solution
LightSand Communications
Why thinking AR?• It Resolves
– Scalability Issue• Number of switches in the fabric
• Number of devices in the fabric
• Recourses: NS, Zoning database size
– Traffic disruption• Fabric reconfiguration
• Node join / leave
– SAN over WAN? • Latency, bandwidth and more
• AR are already in standard, just needs to be more precisely defined
• Utilizes existing routing mechanisms and services
• Absolutely backward compatible
• Brings the same functionality as other approaches
Media Independent Backbone
BB: FSPF, NS, …
FC-PH .
FC Emulation .
Physical media
AR0 - Backbone
AR1 AR2
BSW1 – Boarder Switch1
BSW2 – Boarder Switch2
• AR1,AR2 – are Fabrics absolutely compliant with FC-SWx, FC-GSx
• The main functionality absorbed by BSW and optional for implementation
Who cares – what’s outside?
FC Switch
Director
FC Switch
Server
Storage
Server
BSW
0xFFFFVirtual devices
In xx Domain Space
E-Port
ARx
DID = xx
BSW – Termination Point
ARx AR0Backbone
DID = x DID = yFabric Services
BBServices
FSPFAR
FSPFBB
Address Mapper (DAT)
Zoning
NS BB NS
Local and Remote Topologies
WAN
AR2Department 2
AR1Department 1
AR0BB
AR3Backup Facility
AR/DAT Advantages• Native FC Architecture based on current standards
• No changes in FC-PH or FC-FS
• AR are independent full function FC Fabrics
• 100% backward compatibility
• BSW takes care of all inter-AR communications
• BSW is optional functionality
• Virtually endless scalability
• Improved security, manageability and performance