Bandwidth-saving discovery on dual-stack upnp devices
AssigneeKoninklijke Philips Electronics N.V.
InventorBoris Cobelens
Life of this patent
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Abstract
A dual-stack UPnP-compliant device supports both IPv4 and IPv6. The device uses the SSDP protocol for discovery based on IP multicasting. The device sends SSDP query packets that comprise an indication that the device supports both IPv4 and IPv6. The indication is accommodated in an option field of the packet. A responding dual-stack device responds either to the first query packet that arrives or responds to only the query packet of IPv6.
Claims24
An electronic device for use on a data network, wherein:
- the network supports multiple data communication protocols;
- the device has an operational mode for multicasting on the data network respective query packets using respective ones of the multiple protocols;
- and
- at least a specific one of the respective query packets includes an indication representative of the device supporting the multiple protocols.
An electronic device for use on a data network that supports multiple data communication protocols, wherein:
- the device supports the multiple protocols;
- the device has an operational mode for receiving via the network respective query packets using respective ones of the multiple protocols;
- at least a specific one of the query packets include an indication representative of a source of the query packets supporting the multiple protocols;
- and
- the device responds to only a single one of the query packets using a single one of the protocols in dependence of the indication.
Software for configuring an electronic device for use on a data network that supports multiple data communication protocols, wherein:
- the device is configured for multicasting on the data network respective query packets using respective ones of the multiple protocols;
- and
- the software is operative to configure the device for including in at least a specific one of the respective query packets an indication representative of the device supporting the multiple protocols.
Software for configuring an electronic device for use on a data network that supports multiple data communication protocols, wherein:
- the device is configured to support the multiple protocols;
- the device has an operational mode for receiving via the network respective query packets using respective ones of the multiple protocols;
- at least a specific one of the query packets include an indication representative of a source of the query packets supporting the multiple protocols;
- and
- the software is operative to configure the device for responding to only a single one of the query packets using a single one of the protocols in dependence of the indication.
A method of enabling to configure an electronic device for use on a data network that supports multiple data communication protocols, wherein:
- the device is configured for multicasting on the data network respective query packets using respective ones of the multiple protocols;
- and
- the method comprising enabling to configure the device for including in at least a specific one of the respective query packets an indication representative of the device supporting the multiple protocols.
A method of enabling to configure an electronic device for use on a data network that supports multiple data communication protocols, wherein:
- the device is configured to support the multiple protocols;
- the device has an operational mode for receiving via the network respective query packets using respective ones of the multiple protocols;
- at least a specific one of the query packets include an indication representative of a source of the query packets supporting the multiple protocols;
- and
- the method comprises enabling to configure the device for responding to only a single one of the query packets using a single one of the protocols in dependence of the indication.
Dependencies are inferred from the claim text.