# Aggregate using join node

**URL:** <https://discourse.nodered.org/t/aggregate-using-join-node/25975>\
**Category:** General\
**Created:** [3 May 2020 06:05 UTC](https://discourse.nodered.org/t/aggregate-using-join-node/25975 "2020-05-03T06:05:17Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![Steve-Mcl](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/steve-mcl/32/4826_2.png) [@Steve-Mcl](https://discourse.nodered.org/u/Steve-Mcl)\
**Post date:** [3 May 2020 10:15 UTC](https://discourse.nodered.org/t/aggregate-using-join-node/25975/6 "2020-05-03T10:15:47Z")

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Oh well in that case, it's time to have a play.

Mqtt is so easy & takes care of connection issues, lightweight, has things like QoS built in and you don't have to look for end of stream, no parsing of data.

So many benefits compared to developing your own Comms channel.

Have a look at this - see how simple it can be.  
[Linking 2 or more instances on a local network](https://discourse.nodered.org/t/linking-2-or-more-instances-on-a-local-network/24879/3)

Don't forget, MQTT is pretty much a defacto protocol in IIoT - good to have in your toolbox. And, once you "get it" you can realise so much potential.

Phew, I've done my sales pitch for today.

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