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What is Routing? What is Routing? Gateway system Is a computer running Linux that interfaces the repeater controller to the distant D-Dstar repeater’s gateway. The gateway system functions as a specialized router for the 4800 baud D-Star data streams What is Routing? Gateway system A single Gateway system serves all repeater “ports” within one D-Star system D-star systems usually have 144, 440 and 1200 Mhz DV – Digital Voice Systems .The gateway will also route high speed data to and from the DD - High Speed Digital Data Systems at the 128 kb/s data rate !!! W2KPQ FRRL Selden, NYShown for example only not realistic! Blue Box – WRT-54G Linux PC – Gateway D-Star Controller 2 Meter DV Repeater 440Mhz DV Repeater Cavities Duplexer How is Traffic routed? Gateway system Associates the user’s callsign with a discrete IP number within the gateway system Accomplished by user registration Associates distant repeater callsigns with discrete IP number within the system Assigned when the gateway system is commissioned How is Traffic routed? Gateway system The IP numbers used in routing are NEVER needed beyond the inner workings of the gateway system All that is needed are the CALLSIGNS which are available to the user’s “front panel” Gateway Routing Gateway system Tracks each user’s callsign last location Routes traffic for that user to the last known repeater and port What is Routing? Two Routing Methods Site Routing Where you want to talk Specific System/Gateway and Port User Routing Who you want to talk Specific User Site Routing Callsign of the System W2TAP: Huntington, NY W2KPQ: Selden, NY W4DOC: Atlanta, GA K6MDD: Mt. Diablo, CA N7IH: Bellevue, WA (ICOM America HQ) G7ICM: ICOM UK VK8RAD: Darwin, Australia Callsign Programming MYCALL = W2TAP RPT 1 = W2KPQ---B RPT 2 = K6MDD---G URCALL = /VK8RADB Results My call would be routed from the W2KPQ repeater, over the gateway, and come out on the UHF module in Darwin Australia User Routing Callsign