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Route Construction. Jonathan Rosenberg Cisco Systems. Problem Definition. Lack of clarity on how a UA determines Route header set for a request Lack of definition on handling of 305 response. Sources of Route. Record-Route Configured outbound proxies DHCP 3gpp air interface
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Route Construction Jonathan Rosenberg Cisco Systems
Problem Definition • Lack of clarity on how a UA determines Route header set for a request • Lack of definition on handling of 305 response
Sources of Route • Record-Route • Configured outbound proxies • DHCP • 3gpp air interface • Config framework • 305 response • Email discussion on usage in populating Route header, not Contact • Service-Route
Specific Points of Confusion • Do I include Route header field in my REGISTER? • Generally, what methods? • Does service-route override default outbound proxy?
Goal of Draft • Define an explicit algorithm for construction of Route at UA for each request, clearly defining how each route source relates • Define an explicit algorithm for construction of service route at proxy, with specific points of variation
Question • Interest in this work?