Difference between revisions of "uaCap:Discovery Subnet"

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<br>The CU <b>Discovery Client Find Servers on Network using mDNS</b> is for Clients which have no access to an LDS.  
 
<br>The CU <b>Discovery Client Find Servers on Network using mDNS</b> is for Clients which have no access to an LDS.  
 
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[http://opcfoundation.org/UA-Profile/Server/SubnetDiscovery '''Subnet Discovery Facet''']
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# Servers that register themselves with an LDS shall call the Register2 Service.
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# [http://opcfoundation.org/UA-Profile/Server/SubnetDiscovery '''Subnet Discovery Facet'''] is for Servers that do not use an LDS.
 
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Revision as of 10:39, 4 February 2015

URN:          https://opcfoundation.org/wiki/index.php/Discovery/Subnet


Description
Subnet discovery is based on a special network protocol that allows OPC UA Clients to find OPC UA Servers connected to the local subnet. The list of servers can be filtered by capability acronyms.

Usage Considerations

  • Automatic detection instead of querying each node on the network
  • Filtering by capability to lookup the appropriate Servers.
  • Requires that the network has multicasting enabled.

Conformance Testing

Client Server

The Discovery Client Facet includes two alternative Conformance Units (CUs) for this capability.
The CU Discovery Client Find Servers on Network is for Clients using an LDS.
The CU Discovery Client Find Servers on Network using mDNS is for Clients which have no access to an LDS.

  1. Servers that register themselves with an LDS shall call the Register2 Service.
  2. Subnet Discovery Facet is for Servers that do not use an LDS.