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[Request/Reply](/Request) is a communication pattern, which is used to send commands to a motorcortex server. This protocol is useful in setting up RPC-like services. It is also "reliable", a client will keep retrying until a reply is received.
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[Publish/Subscribe](/Subscribe) is another pattern, where the motorcortex sever sends data, which is broadcast to all subscribers. The subscribing clients only see the data to which they have subscribed. The subscribers maintain their own subscriptions, and filter them locally.
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**References:**
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1. http://zguide.zeromq.org/page:all
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2. https://nanomsg.github.io/nng/man/tip/index.html |
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