perfectstorm
join:2004-05-25
Canada
| reply to Ignite
Re: 2 Shaw Docsis Modems on 1 cable outlet
EuroDOCSIS is based on a 8MHz RF channel hence it's greater downstream capacity. As far as my statement regarding your assessment of a 38Mbps maximum-I'll stand by it. Your assumption of my comment was that there was more available when in fact there is less. Most cable companies while using DOCSIS 2.0 compliant modems are still running a DOCSIS 1.0/1.1 network. Maximum downstream bandwidth in 90% of the nodes would be 27Mbps/30Mbps. Only on a DOCSIS 2.0 platform will you attain 38 Mbps. Hope that clarifies my earlier response and my apologies for the terse post. I can be quite long winded when minus 3 children on my lap. |
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Ignite
Premium,VIP
join:2004-03-18
UK
clubs:
 ·BlueYonder Interne..
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1 edit | said by perfectstorm  :EuroDOCSIS is based on a 8MHz RF channel hence it's greater downstream capacity. As far as my statement regarding your assessment of a 38Mbps maximum-I'll stand by it. Your assumption of my comment was that there was more available when in fact there is less. Most cable companies while using DOCSIS 2.0 compliant modems are still running a DOCSIS 1.0/1.1 network. Maximum downstream bandwidth in 90% of the nodes would be 27Mbps/30Mbps. Only on a DOCSIS 2.0 platform will you attain 38 Mbps. Hope that clarifies my earlier response and my apologies for the terse post. I can be quite long winded when minus 3 children on my lap. No sir you are wrong, 256QAM downstreams that deliver 38Mbps have been available and a required part of equipment conforming to the standard from DOCSIS 1.0, DOCSIS 2.0 gives enchancements to upstream bandwidths, not down.
Your belief that DOCSIS 1.1 gives more downstream bandwidth than DOCSIS 1.0 is also incorrect. The main differences between them are security (baseline privacy plus), the *requirement* to support 16QAM upstreams and dynamic service flow addition / modification / deletion and QoS for Packetcable-like services. |
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Mac Write
join:2004-10-13
New Westminster, BC
| reply to YazdiBalsara
Let me get this straight - a node with 1,000+ customers on it only has a max downstream of 30mbps-38mbps? and 30mbps up-stream? Geez that's serious over-selling and 5 people downloading at max speed would kill the node. Please tell me this isn't correct. |
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Ignite
Premium,VIP
join:2004-03-18
UK
clubs:
·BlueYonder Interne..
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| reply to pfak
said by pfak :said by Ignite :As far as I know no cableco in Canada runs multiple downstreams to each node. As I said though I'm more than open to be corrected by someone who knows the facts such as your good self. I maxed out at ~30 Mbit/s on a Shaw DOCSIS 1.1 node. The rest of the population of the node were probably using the other 8Mbit. |
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Ignite
Premium,VIP
join:2004-03-18
UK
clubs:
·BlueYonder Interne..
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| reply to Mac Write
said by Mac Write :Let me get this straight - a node with 1,000+ customers on it only has a max downstream of 30mbps-38mbps? and 30mbps up-stream? Geez that's serious over-selling and 5 people downloading at max speed would kill the node. Please tell me this isn't correct. Oh it be so sir, and they are quite unlikely to have 30Mbps of upstream available 
1,000+ customer nodes are unlikely I hope, usual builds now use far smaller homes passed per node. More recent UK overbuilds have been 250 - 350 homes passed per node.
Think about it this way the MSOs offering 15Mbit it only takes 2 people doing full speed and one doing half to max it |
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perfectstorm
join:2004-05-25
Canada | I see that this has turned into a pissing contest. I have better things to do with my time. Have a nice day. |
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DRNO22
join:2002-11-25
| reply to YazdiBalsara
This setup from SHAW is not normal. It is setup specifically for our event. I cant go into any details but we have alot more than 30mb bandwidth available.
And you would be surprised how many poeple at a large lan want net access. With games like WOW ect around i dont think you will find many lans that run without it. |
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Mac Write
join:2004-10-13
New Westminster, BC
| reply to YazdiBalsara
Come on you gotta spill the beans. We want details. Get us pictures from this years LAN Party. Is it wireless or mostly wired (I assume wired for low latency). |
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onk1
join:2005-11-27
T1T 1E5 | reply to YazdiBalsara
I'll take a dual node with two uncapped modems plz |
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Ignite
Premium,VIP
join:2004-03-18
UK
clubs:
·BlueYonder Interne..
·Be There
3 edits | reply to perfectstorm
said by perfectstorm :I see that this has turned into a pissing contest. I have better things to do with my time. Have a nice day. A simple 'ooops I was wrong' would have sufficed rather than getting indignant 
You posted what you believed to be the facts, someone else posted what they actually were, it happens.
Any pissing contest arose from your providing technical explanation of what you considered to be these facts, and a technical argument is best countered with another one.
I'll make a mental note to stay quiet whenever you post if being disagreed with on a discussion forum is that offensive to you. |
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Ignite
Premium,VIP
join:2004-03-18
UK
clubs:
·BlueYonder Interne..
·Be There
| reply to DRNO22
said by DRNO22 :This setup from SHAW is not normal. It is setup specifically for our event. I cant go into any details but we have alot more than 30mb bandwidth available. And you would be surprised how many poeple at a large lan want net access. With games like WOW ect around i dont think you will find many lans that run without it. Nice set up if you can get it, weird one too though if they set the network up specifically to give you guys more bandwidth but require you to have 11 cable modems.
No need to go into huge detail with it it's fairly self evident how they're doing it, options are a bit limited how to do it 
Feel privileged though there's a fair bit of equipment supplying your bandwidth |
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DRNO22
join:2002-11-25
| reply to YazdiBalsara
Well from what i gather 1 modem could be setup to do it, its more for wow factor having 11 modems than anything. It actually works out well with all the modems as we can tcp stream balance the load across the modems. I dont have traffic graphs in front of me but the bottom end of the graph is in the 2000-2500kb/s range with the peak around 8000 kb/s
Still trying to get a hold of a picture, once i get one i will post it. |
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