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Ignitionnet · 14-01-2009, 20:24

I think we may have an explanation for some issues, I really hope this is a fault. This from a 50Mbit modem:

Upstream
Channel Type 1.0 Channel ID 3
Frequency (Hz) 25808000
Ranging Status Success
Modulation QPSK
Symbol Rate (KSym/sec) 2560
Mini-Slot Size 2

4.4Mbit of usable bandwidth on an upstream that could, in theory, be catering for several 20 and 50Mbit customers. Is the network really in such bad shape that it can't handle a more strenuous upstream modulation, or at least a DOCSIS 2.0 ATDMA wider upstream?

I'm hoping this is an oversight, it's pretty concerning if the product is being released in places without the appropriate (or going by this any on the return path in this area) network work being done. Problem is this would explain why there's the wait for upstream bonding and even then it's only going to 2.5Mbit.

I will run with oversight for now I think. If that is the best that area of network can manage it's no business running the other tiers let alone 50Mbit.

14-01-2009, 20:24	#47
Ignitionnet Inactive Join Date: Jun 2008 Location: Leeds, West Yorkshire Age: 47 Posts: 13,995	Re: 50Mbit Service Upstream Discussion I think we may have an explanation for some issues, I really hope this is a fault. This from a 50Mbit modem: Upstream Channel Type 1.0 Channel ID 3 Frequency (Hz) 25808000 Ranging Status Success Modulation QPSK Symbol Rate (KSym/sec) 2560 Mini-Slot Size 2 4.4Mbit of usable bandwidth on an upstream that could, in theory, be catering for several 20 and 50Mbit customers. Is the network really in such bad shape that it can't handle a more strenuous upstream modulation, or at least a DOCSIS 2.0 ATDMA wider upstream? I'm hoping this is an oversight, it's pretty concerning if the product is being released in places without the appropriate (or going by this any on the return path in this area) network work being done. Problem is this would explain why there's the wait for upstream bonding and even then it's only going to 2.5Mbit. I will run with oversight for now I think. If that is the best that area of network can manage it's no business running the other tiers let alone 50Mbit.