How it works

[Ignition]

Just reading this post:

http://www.cableforum.co.uk/board/showpost.php?p=175619&postcount=25

Would anyone be interested in this if it were done, would it actually be read by people? :)

[Foo Fighter]

Yeh it would come in very handy for uni assignments, tried looking for something like this before and coulnd't find anything close.

[Chris W]

I wouldn't worry about doing one... we can just put a link somewhere to this:

http://homepage.ntlworld.com/draig.goch/Draig/cablemodem_files/frame.htm

(only views properly in IE)

IMO an excellent explanation of the system, and gives people all the basic information about ntl's cable network.

[Nemesis]

Just reading this post:

http://www.cableforum.co.uk/board/showpost.php?p=175619&postcount=25

Would anyone be interested in this if it were done, would it actually be read by people? :)
Yes it would be worthwhile ... we can add it to the Knowledgebase part of the site.

[ian@huth]

I wouldn't worry about doing one... we can just put a link somewhere to this:

http://homepage.ntlworld.com/draig.goch/Draig/cablemodem_files/frame.htm

(only views properly in IE)

IMO an excellent explanation of the system, and gives people all the basic information about ntl's cable network.

I am aware of the excellent site linked in the quote but it is a little out of date as I believe NTL is now using more than QAM64 and the inktomi's are being / have been replaced.

Whilst the last slide (15) on that presentation shows the various protocols, coding and downstream capacities available, which are currently being used and what is needed to enable the use of the higher downstream capacities and what would the upstream capacities be?

One thing that I think is missing in the presentation is a description of the UBR, how many cards does it / can it have and the effect of saturation of upstreams / downstreams.

There is talk within that presentation about various ways of increasing bandwidth available, ie use more than one TV channel, move the UBRs from the hub to the node and replace the final copper with fibre. Are any of these being considered and if so to what timescale? Does moving UBRs from the hub to the node mean physically moving them or increasing the number of UBRs at the hub?

With the various methods of increasing available bandwidth, can they be done on a area to area basis or does it require the whole network to be done at once?

[Paul]

I disagree with MB and think it would be well worthwhile. :)

[Bill C]

Just reading this post:

http://www.cableforum.co.uk/board/showpost.php?p=175619&postcount=25

Would anyone be interested in this if it were done, would it actually be read by people? :)


If anyone can do it You can :). Go for it :tu:

[th'engineer]

:tu: You wont have to keep tellin me im wrong :dunce: get it done Noob:D
BTW hi bill:)

[BBKing]

Take the presentation, throw away all the bits about the routers, inktomis, DHCPs and start again. Seriously, things have changed a lot since that was made (which must have been in about 2000).

Bits to add - new CAM/core architecture, UBR upstream bandwidth changes, STB network (both platforms are absent afaik), new DHCP architecture, new caches, the importance of segmentation, new provisioning/billing systems.

I'll happily help out of course.

[ntl customer]

Also please save it next time as a powerpoint file.

I could never get the old one to work properly on my system :(

Perhaps there should be some photographs as well and also a network map - I know Blueyonder do such a map of their network and it is made available on their website. :)

[etccarmageddon]

Just reading this post:

http://www.cableforum.co.uk/board/showpost.php?p=175619&postcount=25

Would anyone be interested in this if it were done, would it actually be read by people? :)


yeah baby! good idea.