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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
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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 BSW2 – Boarder Switch2 BSW1 – Boarder Switch1 BB: FSPF, NS, … FC-PH . FC Emulation . Physical media AR1 AR2 AR0 - Backbone • 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? DID = xx Server FC Switch E-Port Storage Director 0xFFFF Virtual devices In xx Domain Space Server FC Switch ARx BSW
BSW – Termination Point ARx AR0 Backbone DID = x Fabric Services BB Services DID = y FSPF AR FSPF BB Address Mapper (DAT) Zoning NS BB NS
Local and Remote Topologies WAN AR2 Department2 AR0 BB AR1 Department 1 AR3 Backup 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