Spanning Tree

Can anyone explain why ETC recommends having Spanning Tree turned off on the network? Besides a longer network convergence time, I dont see the drawback and the advantage of a self-healing network that can mitigate switching loops seems huge. I am involved in a show that had a relatively large network and rig (ok its is a really big rig) and our show went down once because someone plugged in one of the redundant uplink runs into a switch and a massive loop was formed eventually taking the network down and killing the show. Granted, it was totally a human error but if Spanning Tree was enabled on the network, it would have simply shut the port down and we would not have lost our show. Just curious if anyone can explain why the recommendation.

  • Hi TechZuul-

    We reccommend turning spanning tree off on all of the user ports, which in most cases, is all of them for most jobs. This will allow devices to connect much faster and consistently. With spanning tree enabled on the user ports it would take some devices minutes instead of seconds to connect.

    In fact this is how we ship our standard switch by default (Dell 3524P) in an effort to work right out of the box with all systems. However, if the installing technician feels the system architecture (redundant uplinks as you mentioned) would benefit from turning on spanning tree they can certainly enable spanning tree on any of the ports.

    Take care!

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