Hi Jeroen
Interesting topic!
Swisscom deployed 'FTTS' at my home last year, promising 'at least 500 mbit/s with g.fast' for every household, causing the municipal administration to reject plans for proper FTTH from competitors, this as a sidenote.
Actual situation: I live about 250m away form the DSLAM in the street. After several cases opened @ Swisscom, they found out it is just about a little too far away for g.fast to work properly.
In this 'at the limit' situation I tested two ZyXEL XMG3927-B50A (to make sure I had not a broken one) in bridge mode (PPPoE on Mikrotik). Tested directly at the HÜP.
Results: * g.fast is slower than VDSL2 at this distance in both up and down speed (way slower than what Swisscom announced). * XMG3927 shows very strange packet delays. There is no packetloss, but latency sometimes jumps to about 500ms or more, for single packets (usually small packets like tcp syn) causing re-transmits, without apparent reason. This happens in g.fast AND VDSL2 mode. Also happening if ethernet interface is set to 100Mbit/Fduples. Opened Case @Studerus, They never heard of that issue. * Older VDSL2 only Modem: VMG1312-B10A odes not show this lately issue (so I kept that modem)
I know, that the XMG3927 has wider filters (up to 500Mhz or so) to allow g.fast. I know there are a couple of low power 430MHz transmitters in my neighbourhood. Could they be the cause of that issue?
Looking forward of other's experiences with g.fast bridges.