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8 result(s) for Brokers

• OPC-10000-1 – OPC Unified Architecture - Part 1: Overview and Concepts
  2.1.5 Broker
  intermediary program module that routes NetworkMessages from Publishers to Subscribers Note 1 to entry:  Brokers are building blocks of Message Oriented Middleware
• OPC-10000-1 – OPC Unified Architecture - Part 1: Overview and Concepts
  5.7.4 KeyCredential management
  management Some OPC UA Applications may need to access external entities (e.g. authorization services, Brokers , etc.) that require an identifier and a secret (called a "key credential
• OPC-10000-12 – OPC Unified Architecture - Part 12: Discovery and Global Services
  8.1 Overview
  management and distribution of KeyCredentials which OPC UA Applications use to access AuthorizationServices and/or Brokers . An application that provides the KeyCredential management functions is called a KeyCredentialService and is typically ... LDAP. Note that KeyCredentials are secrets that are directly passed to AuthorizationServices and/or Brokers and are not Certificates with private keys. Certificate distribution is managed by the Certificate management model
• OPC-10000-12 – OPC Unified Architecture - Part 12: Discovery and Global Services
  8.3 Pull Management
  KeyCredentialManagement Object (see 8.5.4 ). It allows Clients to request credentials for AuthorizationServices or Brokers which are supported by the KeyCredentialService . The interactions between the Client and the KeyCredentialService during PullManagement
• OPC-10000-12 – OPC Unified Architecture - Part 12: Discovery and Global Services
  8.6.1 Overview
  when they update the KeyCredentials used by a Server to access resources such as Brokers or Authorization Servers . The KeyCredentialConfiguration Folder is a well-known Object that appears
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  5.4.6.3.1 General
  handled to a very large list of Subscribers , multiple networks or even chained Brokers or scalable Brokers . Publisher and Subscriber lifetimes do not have to overlap. The Publisher application
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  7.3.4.1 General
  relays messages between applications that cannot communicate directly. Publishers send MQTT messages to MQTT brokers. Subscribers subscribe to MQTT brokers for messages. A Broker may persist messages so they ... delivered even if the Subscriber is not online. Brokers may also allow messages to be sent to multiple Subscribers . The MQTT protocol defines a binary protocol used to send
• OPC-10000-14 – OPC Unified Architecture - Part 14: PubSub
  B.3.1 General
  persist messages so they can be delivered even if the subscriber is not online. Brokers may also allow messages to be sent to multiple Subscribers. The AMQP protocol defines