# \#difference\_in\_ack\_ti

**URL:** https://forums.digi.com/tag/difference-in-ack-ti/2656.md

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## [Why acknowledgement time for broadcasting packet is more than that of unicast packet?](https://forums.digi.com/t/why-acknowledgement-time-for-broadcasting-packet-is-more-than-that-of-unicast-packet/16255)

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**Author:** [@bhavika](https://forums.digi.com/u/bhavika)\
**Replies:** 4\
**Last updated:** [February 11, 2016, 11:49pm UTC](https://forums.digi.com/t/why-acknowledgement-time-for-broadcasting-packet-is-more-than-that-of-unicast-packet/16255 "2016-02-11T23:49:45Z")

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In broadcast message, ACK comes after 1.6 second and in unicast message, ACK comes after ~200 ms. I am sending API frame. I searched on the internet that node who get the broadcast message will relay the same, but I can…