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View Full Version : Number of downstreams on 50mb?

pythagoras
03-06-2010, 12:00
All the 50Mb modem logs I have seen have 4 active downstreams, my modem has 3 is this okay?
Cable Modem Downstream

DS-1 DS-2 DS-3 DS-4
Frequency 299000000 307000000 315000000 N/A
Lock Status
(QAM Lock/FEC Sync/MPEG Lock) Y/Y/Y Y/Y/Y Y/Y/Y N/N/N
Channel Id 60 61 62 N/A
Modulation 256QAM 256QAM 256QAM N/A
Symbol Rate
(Msym/sec) 6.952 6.952 6.952 N/A
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 N/A
Power Level
(dBmV) -5.34 -6.24 -6.28 N/A
RxMER
(dB) 35.97 35.78 36.17 N/A
Correctable
Codewords 6183 6971 1637 N/A
Uncorrectable
Codewords 287 275 262 N/A
Peter_
03-06-2010, 12:12
It depends on what kit they use in your area, if you have 4 downstreams you are connected to a Motorola BSR and if you have 3 downstreams then you are connected to a Cisco uBR.
AbyssUnderground
03-06-2010, 12:13
Masque, why do Motorola have 4 and Cisco have 3 though? Different speeds?
Peter_
03-06-2010, 12:15
Masque, why do Motorola have 4 and Cisco have 3 though? Different speeds?
I have no idea but Ignitionnet will have if he sees this thread.;)
pythagoras
03-06-2010, 12:18
I'm in wigan which is under knowsley I believe.
pip08456
03-06-2010, 13:23
Wigan is ex Telewest if I rcall correctly. I believe most or all of ex Telewest use 3 downstreams on 50Mb.

As said Igni is the one to confirm this though.
Peter_
03-06-2010, 14:11
Wigan is ex Telewest if I rcall correctly. I believe most or all of ex Telewest use 3 downstreams on 50Mb.

As said Igni is the one to confirm this though.
uBR's and BSR's are in both NTL and Telewest areas, just depends what kit they used.
pip08456
03-06-2010, 16:50
Thanks for the correction Masque, I'll file it away for future reference.
Doz007
08-06-2010, 20:42
Intresting thread, you learn something new every day!

I've only got 3 and i'm in an ex Telewest area, not seeing the full 50mb yet though unfortunately. :(
Peter_
08-06-2010, 20:45
Intresting thread, you learn something new every day!

I've only got 3 and i'm in an ex Telewest area, not seeing the full 50mb yet though unfortunately. :(
If you have an issue with speed call the 50Mb Support Team tomorrow after 0800 on 0800 052 0431.
Doz007
08-06-2010, 20:59
If you have an issue with speed call the 50Mb Support Team tomorrow after 0800 on 0800 052 0431.

Thanks for the prompt reply mate,

I'm in direct contact with somebody from networks who is working hard to resolve my issue. He's just moved me to a different UBR today, but i'm still only downloading at 1.4MB/s unfortunately. As a new customer though, I can't fault the service from everybody at VM. :)
Peter_
08-06-2010, 21:58
Thanks for the prompt reply mate,

I'm in direct contact with somebody from networks who is working hard to resolve my issue. He's just moved me to a different UBR today, but i'm still only downloading at 1.4MB/s unfortunately. As a new customer though, I can't fault the service from everybody at VM. :)
They will work to resolve your issue as soon as they can, good luck.:)