We recently had to bring up a 10G link between two buildings on campus, and the run was just far enough that multimode was not going to cut it. The fiber was already there, single mode, but the path was not exactly clean. A couple of patch panels, older jumpers, and documentation that had not been updated in years. Instead of spending days validating every segment first, we went ahead and deployed SFP-10G-LR-S to get the link online.
To be honest, it worked better than I expected. The link came up on the first try and stayed stable even while we were still cleaning up other parts of the network. No flapping, no rising error counters, nothing that forced us to babysit it. Once everything else around it was sorted, the link just blended into the background, which is exactly what I want from an optic.
What stood out to me was how little attention it needed. As long as the fiber was within spec, SFP-10G-LR-S did not seem to care about the extra patch points or slightly older infrastructure. That made it a lot easier to keep the project moving instead of getting stuck in analysis mode.
Now I am curious how others feel about it. For those working with longer 10G runs, do you default to
SFP-10G-LR-S without much hesitation, or have you run into situations where it was more sensitive than expected?
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