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Subject: [OASIS Issue Tracker] Created: (WSDD-3) WS-Discovery - Clarifyhandling of multihomed devices
WS-Discovery - Clarify handling of multihomed devices ---------------------------------------------------------- Key: WSDD-3 URL: http://tools.oasis-open.org/issues/browse/WSDD-3 Project: OASIS Web Services Discovery and Web Services Devices Profile (WS-DD) TC Issue Type: Improvement Components: WS-Discovery Specification Environment: N/A Reporter: Antoine Mensch Assignee: Toby Nixon When a target service may be reached through several transport addresses, for instance when using multiple network interfaces for a device, it is not clear whether it is the responsibility of the service or the client to select the appropriate transport address for communication. For instance, the service could publish all its transport addresses to the client and let the client decide which ones are reachable, or it could use network adapter information to send Hello, ProbeMatches and ResolveMatches messages containing only the transport addresses corresponding to the network interface being used for sending the messages. Similarly, IPV4 Probes/Resolves could be answered with ProbeMatches/ResolveMatches containing only IPV4 transport addresses. This lack of precision creates interoperability issues: for instance, our experience with the Windows Vista Network Explorer is that it will not select the best transport address when presented with multiple transport addresses, some of which being not reachable. On the other hand, maintaining separate versions of a service metadata information for different network interfaces could quickly become a nightmare, as we would need some complex rules for incrementing the metadata version and resending Hello messages when metadata changes (e.g. change of network address) only affect one network interface. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://tools.oasis-open.org/issues/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira
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