GS752TPP - STP is disabling/blocking several ports

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nmarques wrote:

I have a client using a GS752TPPv3 with firmware 6.1.0.10 in an AV system environment. I generally use the M4300/M4200 line up but this model was approved by Wyrestorm for NHD100 series and the budget did not allow for an AV Line switch. 

This short ~5 seconds are looking like a port of the start-up on an network with STP and/or RSTP configured.  At the end, all ports are forwarding (unless I oversee one or very few ports).

Provide a topology and a list of devices involved.

Does the problem re-appear -later- after the boot and STP negotiation finished successfully?  

Are there other devices on that network participating on STP/RSTP, e.g. another switch, router, other devices?

Regarding to the mentioned Wyrestorm NHD100 Series, I guess one or a few transmitters and many more receivers - and the system is using either unicast or ideally multicast (that would be using ICMP Multicast where the VLAN(s) must be configured accordingly) for the video feeds - not that you don't know this already. That's why the GS752TPPv3 is considered to be used on such a network.

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nmarques wrote:

It has been working fine for probably a year with no changes to topology or devices attached. Suddenly ports are becoming disabled and we do not know why. Can someone take a look at the log below and see if anything stands out? I can send the Tech Support log. 

Please avoid sharing tech support files with random people on the Internet, since it can contain customer personal, proprietary and site information details - this is mainly for Netgear Support purposes. Share it on demand only with Netgear Support.

Regards,

-Kurt.

(not on behalf of Netgear)