> Isn't it very typical for an ISP to run their line onto your premises and put the demarcation device on your premises with your power supply etc? Usually ther

> Isn't it very typical for an ISP to run their line onto your premises and put the demarcation device on your premises with your power supply etc? Usually there isn't a "their side" where it still works. There is, in my case. Their point of presence is about 800 meters away, and they have a simple switch that aggregates connections. Their optical terminal on my terminal (a switch-sized 1-U rack-mounted box with ANNOYING fans) does all the traffic shaping, authentication, etc. > It's possible that the termination equipment could be a bare SFP and not a big box, but the ISP wants to be able to monitor the status of your connection up to the termination equipment, because that is their responsibility to keep online, and they can't do that if it's just an off-the-shelf SFP. They probably wouldn't agree to do it and still have any SLA. Sure, and having equipment on my premises makes it much easier to debug the issue. But they actually monitor the BGP session state, not the optical path.