bobbeling 2 Posted December 29, 2016 Report Share Posted December 29, 2016 I was reviewing my network with Wireshark and noticed the incredible amount of ARP requests that Domotz outputs. It sends an ARP request to every IP address in my network. I have 2 VLANs that Domotz monitors. Is every 30 seconds really necessary? Looking at my L3 network switch, it looks like my CPU jumps up 10% every 30 seconds. Not a huge impact, but it seems a bit excessive. Anyone else notice this? Is there a way to change the frequency? Link to post Share on other sites
johnpoz 2 Posted December 30, 2016 Report Share Posted December 30, 2016 The ability to adjust the frequency would be nice.. Link to post Share on other sites
Tommaso 1 Posted January 5, 2017 Report Share Posted January 5, 2017 Hi all, our scan frequency is currently not customisable: it's part of our core infrastructure and we must pay very close attention to any adjustment. This high rate is needed to send real-time alert. Link to post Share on other sites
NorthBT 2 Posted January 18, 2017 Report Share Posted January 18, 2017 Hi folks, We are also seeing large amounts of broadcast ARPs - 500 broadcasts over a 1s period, every 30 seconds. Although this may be acceptable to devices with powerful processors, our humbler devices (10Base-T) are getting heavily loaded by this, and our real application messages are getting slowed/lost. Is it not possible to stagger these ARPs, or send unicast to known devices, rather than hitting a network so heavily, so often? We also notice broadcast ARPing to subnet-broadcast address x.x.x.255/24 and x.x.x.0/24? Link to post Share on other sites
DanielW 1 Posted October 25, 2017 Report Share Posted October 25, 2017 tapping into this. Is there a way to tweak broadcasting or use unicast? I was troubleshooting our network performance an 3.5 million packets a day. happy to sacrifice realtime alers for the network. for the moment turning off domotz Link to post Share on other sites
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