I have ADSL via a Thomson TG585 v7 router (Demon Internet).
Generally these days its DSL connection reports something like
Bandwidth (Up/Down) [kbps/kbps]: 1.023 / 7.621
I'm interested in limiting the connection speed to a little slower: a year or so ago with the same router it used to connect at 4-6Mbit or so, and there was just less weirdness with e.g apt-get downloads suddenly slowing to a crawl or the router failing to establish an internet connection after restart without being prodded to retry via the web interface.
If I telnet into the box, the
xdsl maxspeed command seems like it should let me inspect/control the maximum rate; but while (following a
xdsl maxspeed tx=800000 rx=5000000,
system reboot) I can get it to show:
XDSL Predefined Maximum speed: Upstream: 800000 Downstream: 5000000 XDSL Actual Maximum speed Upstream: 1023000 Downstream: 7736000
The predefined maximum speed seems not to actually have any effect on the connection established and the router's web interface also still reports the >7MBit/s DSL bandwidth. (Same even if I power cycle the router rather than soft-restarting it).
Any ideas if it's possible to limit the DSL speed on this router, and if so, how ?
NB I'm not just trying to limit bandwidth at the TCP/IP level. This is more to do with persuading the DSL connection negotiation to be more conservative about how much data it tries to cram down a noisy line.