The answer was given above, nothing. The layout of the lines may not even make it possible for your line to be connected to cabinet 2. Even if it was possible, and even if you get the worlds most helpful engineer, they are simply not allowed to redirect your line. My line runs right past a fibre cabinet and I was unable to get connected to it.
Don't make too name assumptions on the speed you will get though. I'm around 900m from my cabinet and sync at 50mb, with a current max attainable of 58mb. I have practically no crosstalk though as my cabinet was full before any neighbours could order FTTC. Sync had only dropped by 1mb since going live. I also have a brand new line all the way to the cabinet.