Hi Craig, As another user mentioned, you are probably looking for "Fail to wire" or / "bypass pair".
I've used Cloudgenix/Palo Alto Prisma SD-WAN with much success. On Mon, Jun 23, 2025 at 9:51 AM Riley O via NANOG <[email protected]> wrote: > The optical world does have a well fit solution, in the form of optical > line taps... I've never used the independent modules, but it's common to > see them integrated into a MUX as a monitor port. > > Quick search found this: > > https://www.showmecables.com/by-category/patch-panels/fiber-optic-systems/passive-optical-taps > > I'd contend this is better, as they start and end passive, avoiding a > state change in a failure scenario. Although, un-networked devices in the > middle of a circuit can become problematic if undocumented. The last thing > you want is to be hunting down failed splices, when the answer is a loose > connection in a datacenter. > > Probably good if you can have some type of networked monitoring platform > in line with one of these. > > >From the sounds of it though, OP would need his device to be addressable > via one of the connections it is monitoring... and passive taps are > unidirectional. As far as optical networking goes, a passive solution would > require some type of multiplexing, which implies special equipment at > midpsan, A, and Z ends of the circuit. > > > - Riley > > > On Monday, June 23rd, 2025 at 9:41 AM, Kevin Shymkiw via NANOG < > [email protected]> 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 > > > > > - 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 > [email protected] > > > > > 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 > > > > > > > > https://lists.nanog.org/archives/list/[email protected]/message/Y7JZATLRDCXOHWBH7NFGAQNSVJW2YTJA/ > > > > > _______________________________________________ > > NANOG mailing list > > > https://lists.nanog.org/archives/list/[email protected]/message/JEAZ47MKKDWILHHD3RLM6PV2HKE54HM3/ > _______________________________________________ > NANOG mailing list > > https://lists.nanog.org/archives/list/[email protected]/message/QZN2JFKB6YTU6QU2KDIA4T3XLPOSZ5IJ/ _______________________________________________ NANOG mailing list https://lists.nanog.org/archives/list/[email protected]/message/BRF6WI6YIPDTMOQ5IKJRNHLVAUB2F55J/
