https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11252#M2280 We are deploying a multi-ring network using 100+ X440 and one BD 8806.<BR /> <BR /> from Core to any location we are having less than 15ms delay, but still the guys from SCADA system complaining that it's too much for their system, So I need a reference for the network requirements of SCADA systems. any advice?<BR /> <BR /> Regards<BR /> Yusuf Fri, 25 Aug 2017 02:10:00 GMT Yusuf_Kabbara 2017-08-25T02:10:00Z https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11252#M2280 We are deploying a multi-ring network using 100+ X440 and one BD 8806.<BR /> <BR /> from Core to any location we are having less than 15ms delay, but still the guys from SCADA system complaining that it's too much for their system, So I need a reference for the network requirements of SCADA systems. any advice?<BR /> <BR /> Regards<BR /> Yusuf Fri, 25 Aug 2017 02:10:00 GMT https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11252#M2280 Yusuf_Kabbara 2017-08-25T02:10:00Z https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11253#M2281 Hello, Yusuf!<BR /> <BR /> As I know - there is no any requirements for SCADA.<BR /> But you can use other technologies which are reduce delay - like QoS, DCBX, AVB etc.<BR /> <BR /> Thank you! Mon, 28 Aug 2017 11:10:00 GMT https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11253#M2281 Alexandr_P 2017-08-28T11:10:00Z https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11254#M2282 Hi Yusuf,<BR /> <BR /> Your SCADUH guys are obviously unaware of the laws of physics. Usually the slowest thing on a SCADA network is their unpatched servers. <BR /> <BR /> So if u have eliminated 90% of latency (what's a couple of milliseconds between PLCs/RTUs) u need to educate (re the speed of light thing) and get them tuning the app.<BR /> <BR /> Do note that an architecture with minimal firewall traversal does help (eg one at the headend and a security oriented network fabric like mac in mac). <BR /> <BR /> i have similar 15ms latency to (interstate) parts of the network and these (see link) guys look like they r running in AWS <A href="https://medium.com/aws-enterprise-collection/reborn-in-the-cloud-talen-energy-s-journey-to-the-cloud-5ea03af2a367" target="_blank" rel="nofollow noreferrer noopener">https://medium.com/aws-enterprise-collection/reborn-in-the-cloud-talen-energy-s-journey-to-the-cloud-5ea03af2a367</A> so i'd expect similar unless they're on top of an AWS campus<BR /> <BR /> some latency commentary in here<BR /> <A href="http://trilliantinc.com/library-files/media/WP_Comms-for-DA.pdf" target="_blank" rel="nofollow noreferrer noopener">http://trilliantinc.com/library-files/media/WP_Comms-for-DA.pdf</A><BR /> <BR /> and a case study with latency issues<BR /> <A href="https://library.e.abb.com/public/8fe715f52164b564c1257c050041522c/008_Communication_en.pdf" target="_blank" rel="nofollow noreferrer noopener">https://library.e.abb.com/public/8fe715f52164b564c1257c050041522c/008_Communication_en.pdf</A><BR /> <BR /> IB<BR /> <BR /> Mon, 25 Sep 2017 12:52:00 GMT https://community.extremenetworks.com/t5/extremeswitching-other/what-is-the-network-requirements-for-scada-systems/m-p/11254#M2282 Enrico_Cundelli 2017-09-25T12:52:00Z