US Patent 11076003 Service-oriented architecture

There is disclosed in one example a data exchange layer (DXL) broker, including: a network interface to communicatively couple to a data exchange layer (DXL), the DXL including an enterprise service bus (ESB) configured to provide one-to-one device communications over a publish-subscribe fabric; hardware including at least a processor; and instructions encoded on one or more computer-readable mediums to instruct the processor to provide DXL broker software configured to: receive a DXL request message via the DXL, the request message directed to a DXL service; determine that the DXL service is available; and forward the request message to a DXL endpoint via the DXL.