Hi all
(on a 7340 with 7390 alien OS 6.20 international)
did anyone already figure out the new ControlBitField bits?
I'd like to reduce latency from its current 16ms/4ms (dw/up). Being only 150 meters from the cabinet with 100Mbps attainable and only 30Mbps subscription, I think I have a stable enough line to disable interleaving.
It seems with OS 6 something changed, I find many post that tell me I would simply need to set bit 2, but also posts that this does not work anymore in OS 6.
And indeed, it does not work for me.
What I found so far is that bit 2 now seems to control RFI rather then FastPath.
Also I found (as reported by others) that the value has a 0x40000000 offset.
And I found that this offset is added automatically (if I set it to 2, it becomes 0x40000002)
After doing above, I see that the latency stays the same 16ms/4ms. But the RFI activates (white stripe in the spectrum)
Guessing that maybe the bits were shifted, I tried 4 instead
RFI disappears again, but latency stays on 16ms/4ms
I could try all bits one by one, but do not want to reboot 10 times in a day, as the DLM (dynamic line management) may flag my line as completely unrelyable. So if someone else already figured this out, please assist.
Otherwise I guess I just have to try over the next few months.
Thanks
Edit: Collecting some values
SNR set to max stability in GUI : 0x40000004
SNR set to max speed in GUI : 0x40000004
(on a 7340 with 7390 alien OS 6.20 international)
did anyone already figure out the new ControlBitField bits?
I'd like to reduce latency from its current 16ms/4ms (dw/up). Being only 150 meters from the cabinet with 100Mbps attainable and only 30Mbps subscription, I think I have a stable enough line to disable interleaving.
It seems with OS 6 something changed, I find many post that tell me I would simply need to set bit 2, but also posts that this does not work anymore in OS 6.
And indeed, it does not work for me.
What I found so far is that bit 2 now seems to control RFI rather then FastPath.
Also I found (as reported by others) that the value has a 0x40000000 offset.
And I found that this offset is added automatically (if I set it to 2, it becomes 0x40000002)
Code:
root@fritz:/var/mod/root# ctlmgr_ctl r sar settings/ControlBitfield
0x40000000
root@fritz:/var/mod/root# ctlmgr_ctl w sar settings/ControlBitfield 2
root@fritz:/var/mod/root# ctlmgr_ctl r sar settings/ControlBitfield
0x40000002Guessing that maybe the bits were shifted, I tried 4 instead
Code:
root@fritz:/var/mod/root# ctlmgr_ctl w sar settings/ControlBitfield 4
root@fritz:/var/mod/root# ctlmgr_ctl r sar settings/ControlBitfield
0x40000004RFI disappears again, but latency stays on 16ms/4ms
I could try all bits one by one, but do not want to reboot 10 times in a day, as the DLM (dynamic line management) may flag my line as completely unrelyable. So if someone else already figured this out, please assist.
Otherwise I guess I just have to try over the next few months.
Thanks
Edit: Collecting some values
SNR set to max stability in GUI : 0x40000004
SNR set to max speed in GUI : 0x40000004
Zuletzt bearbeitet:
