Identifying problematic Global Who-Is in Visual BACnet

Global Who-Is BACnet Visual BACnet
Learn how to spot and solve problematic Global Who-Is broadcasts

Global Who-Is requests are important to ensure all of the devices on your system are accounted for. However, if they occur too often they can clog the system with all of the I-Am replies. It is important to know if they are being sent out too frequently.

A great way to see if this is happening is by visualizing the traffic in your network. On the homescreen of Visual BACnet, you can see all of your network traffic, with BACnet traffic in green. In the image below, you can see that traffic is regularly spiking – a good clue that something is not quite right.

Global Who

In this case, the Global Who-Is diagnostic check failed: there are 46 packets with Global Who-Is in this 20-minute capture. If you click on it, you can drill down to see more information about why it failed.

Who is

Upon further inspection, we can see that source device 00:11:22:03:12:ee is sending a Global Who-Is every minute.

editing

In this case, a particular device was configured to “discover everything” every 60 seconds, in the form of Global Who-Is requests. This system is very large and the default configuration caused unexpected delays. Visual BACnet allowed this user to very quickly identify the source of the problem and fix it.

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June 12, 2018, Vancouver, BC – Vancouver-based Optigo Networks, the network connectivity, monitoring, and analytics company, has released a new report on the challenges and opportunities for BACnet in smart b

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The brand new 8-port Smart Aggregation Switch hosts 10G of bandwidth, allowing users to expand their building systems seamlessly.

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Penn State University Visual BACnet Site Monitoring Optigo Networks

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When Tom Walker first started working at Penn State University four years ago, there were a lot of network issues. Buildings were dropping offline. Broadcast traffic was pushing 90,000 packets per hour. Walker was on the phone almost every single night because devices were down or had to be reset.

 

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When MR Soluciones began work on Torre Manacar, they knew they needed a flexible and scalable network infrastructure to support a wide array of integrated systems. Optigo Networks was a natural fit for the massive project, designing a robust network at a competitive cost.

short

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BOULEVARD MALL

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TELECOM DATA CENTER

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bueno

BUENO SYSTEMS

Energy analytics company BUENO Systems was working on a mall when the worst happened. The network failed and equipment failed to “ON,” which kept units running 24 hours a day. As it turns out, the mall’s network was overloaded and glitching before BUENO even deployed. It had been for a while. These latent issues were a ticking time bomb and would have resulted in a failure if any new devices were added to the network. Because it was BUENO’s device, though, they had to fix it. The only way to fix it was out of pocket.