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Type: Improvement
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Status: Open
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Priority: Major
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Resolution: Unresolved
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Affects Version/s: None
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Fix Version/s: None
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Component/s: DPWS Specification
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Labels:None
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Environment:
N/A
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Proposal:
R0042 limits supported hosted services addresses to HTTP transport addresses (presumably absolute). As hosted services generally share the network addresses (ip ddress + port) of their hosting device, allowing relative addresses (as done for the presentationURL field) could reduce the need to duplicate endpoint references for hosted services for all the transport addresses of their hosting device. It could also help simplify the management of metadata when multiple network interfaces are used, by allowing the hosting metadata to remain constant across network interfaces. This issue has appeared when a new version of the DPWS spec has changed hosted service addresses for logical to HTTP transport. Note also that there is an inconsistency in the management of metadata: the transport addresses of devices are not covered by the metadata version, while the transport addresses of hosted services are (see R2030).