On Mon, Jun 23, 2025 at 5:40 PM, Kevin Shymkiw <nanog@lists.nanog.org> wrote:
I have seen several Fail To Wire (FTW) switches in the past. I never found them to be worthwhile, personally for a few reasons
- Only available in Copper. - You can't FTW optical since you need an OEO conversion
Actually, you can, and a bunch of people make bits to do this sort of thing. It involves micro-mirrors and a solenoid to direct signal out through one of N ports. Here is an example from BlackBox https://www.blackbox.com/en-us/store/product/detail/Fiber-Optic-A-B-Switch-L... This particular version latches into the last selected position, but there are versions with many more input/output ports, and which fail to one position on power-outages. These generally use MEMS devices and get quite pricey... W - Failure scenarios were limited - Our sites didn't have backup power, so
it was pointless as we would lose the rest of the gear as well
Just my $.02
Kevin
On Mon, Jun 23, 2025 at 9:34 AM Craig Smith via NANOG < nanog@lists.nanog.org> wrote:
Hello,
Is anyone out there aware of a fail safe switch/router/1U server where upon power failure or watchdog event 2 ports would fail to pass through data, but could also be assigned an IP address and act as a bridge in "normal" mode? The desire is to have an appliance that could perform monitoring and send telemetry in between a customer device and an Internet connection but not create a single point of failure or require multiple ISP handoffs.
Best,
Craig _______________________________________________ NANOG mailing list
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