Quote:
Originally Posted by Broadbandings
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. |
Broadbandings,
You seem like a very knowledgeable guy as far as cable network infrastructure goes you commented on my post on the support groups. If I understand you correctly the QPSK modulation used on my (single chanel unbonded) return path is limited to 4.4mbit/sec so if like 4 people in my street are uploading thats this thing saturated?
If this is the case this sounds like mis-selling on virgins part as I get serious spikes when undertaking latency sensitive tasks (gaming+voice comms)
Can you give me any more detail which I can use for going back to Virgin I don't want to be tied into a service which is worse for playing games etc. I never had a single latency issue on my 20mbit connection.
Are you aware of any upstream modulation parameters from other areas in the country which have a more suitable upstream modulation for providing a solid upstream cabability?
Regards,
David