# UDP instream limit

**URL:** <https://discourse.nodered.org/t/udp-instream-limit/61546>\
**Category:** General\
**Tags:** node-red-dashboard\
**Created:** [20 April 2022 13:14 UTC](https://discourse.nodered.org/t/udp-instream-limit/61546 "2022-04-20T13:14:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![lroman](https://avatars.discourse-cdn.com/v4/letter/l/6de8d8/32.png) [@lroman](https://discourse.nodered.org/u/lroman)\
**Post date:** [20 April 2022 13:14 UTC](https://discourse.nodered.org/t/udp-instream-limit/61546/1 "2022-04-20T13:14:47Z")

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Hi,

Is there a max number of edge devices that can send data to a UDP-IN node. For instance, a gateway running node-red and it listens for incoming UDP packets and the number of UDP messages is proportional to the number of edge devices sending data to the gateway. I am assuming this is also HW dependent but I would like to know if the UDP-IN has a limit for many-to-one communications.

Thanks

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**Author:** ![dceejay](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/dceejay/32/38_2.png) [@dceejay](https://discourse.nodered.org/u/dceejay)\
**Post date:** [20 April 2022 20:08 UTC](https://discourse.nodered.org/t/udp-instream-limit/61546/2 "2022-04-20T20:08:41Z")

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Hello and welcome,  
I don't think there is any fundamental limits built in. As you already said the main dependency will be hardware and the underlying operating system and it's performance. - but also maybe what you are doing downstream in the rest of the flow.

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**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [19 June 2022 20:09 UTC](https://discourse.nodered.org/t/udp-instream-limit/61546/3 "2022-06-19T20:09:03Z")

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