Re: IP over in-ground cable applications.
On Thu, 12 Sep 2002, Christopher J. Wolff wrote: Greetings, Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. The cable companies do this quite well; however, it's not immediately clear to me how I would multiplex the IP traffic and the existing video and deliver it to a home. Ya, build a new two-way HFC network. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. This way, integrating the video and data portion are easy, however the resident would need to buy a mpeg2 set-top-box to split out the video and internet. Thank you very much for your consideration. The issue is you only have 125 CMTS channels to deal with and most network have way to many homes passed per head end to make mpeg2 over IP practical solution. Nathan Stratton nathan at robotics.net http://www.robotics.net
RE: IP over in-ground cable applications.
Nathan, If your MPEG2 video were multicast streams, wouldn't that be a much more effective utilization of bandwidth? Regards, Christopher J. Wolff, CIO Broadband Laboratories, Inc. http://www.bblabs.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Nathan Stratton Sent: Thursday, September 12, 2002 11:29 AM To: Christopher J. Wolff Cc: [EMAIL PROTECTED] Subject: Re: IP over in-ground cable applications. On Thu, 12 Sep 2002, Christopher J. Wolff wrote: Greetings, Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. The cable companies do this quite well; however, it's not immediately clear to me how I would multiplex the IP traffic and the existing video and deliver it to a home. Ya, build a new two-way HFC network. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. This way, integrating the video and data portion are easy, however the resident would need to buy a mpeg2 set-top-box to split out the video and internet. Thank you very much for your consideration. The issue is you only have 125 CMTS channels to deal with and most network have way to many homes passed per head end to make mpeg2 over IP practical solution. Nathan Stratton nathan at robotics.net http://www.robotics.net
Re: IP over in-ground cable applications.
On Thu, Sep 12, 2002 at 11:24:15AM -0700, Christopher J. Wolff wrote: The cable companies do this quite well; however, it's not immediately clear to me how I would multiplex the IP traffic and the existing video and deliver it to a home. Well, the traditional solutions involve some combination of digital TV (which you allude to in the next paragraph) and/or frequency division multiplexing, which has existed for quite some time. Note that FDM is what makes cable TV possible to begin with. As far as the cable is concerned, there isn't much of a difference between another TV channel and data. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. This way, integrating the video and data portion are easy, however the resident would need to buy a mpeg2 set-top-box to split out the video and internet. Thank you very much for your consideration. I'm not sure this is really any easier than existing analog FDM techniques. --msa
Re: IP over in-ground cable applications.
Christopher J. Wolff wrote: My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. This way, integrating the video and data portion are easy, however the resident would need to buy a mpeg2 set-top-box to split out the video and internet. Thank you very much for your consideration. Most satellite video is already mpeg2, why would you want to touch the bitstream? all you need is add the IP headers. Pete
RE: IP over in-ground cable applications.
You would need multicast speakers (routers, etc) along the cable route to effectively multiple your bandwidth at all. Since cable is already multicasting (1 stream to many/all) I don't think I see any advantage. Unless, of course, you expect cable customers to be broadcasting to other cable customers (say their own home video content)... Then MPEG2 Multicast would be your friend. Deepak -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Christopher J. Wolff Sent: Thursday, September 12, 2002 2:34 PM To: 'Nathan Stratton' Cc: [EMAIL PROTECTED] Subject: RE: IP over in-ground cable applications. Nathan, If your MPEG2 video were multicast streams, wouldn't that be a much more effective utilization of bandwidth? Regards, Christopher J. Wolff, CIO Broadband Laboratories, Inc. http://www.bblabs.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Nathan Stratton Sent: Thursday, September 12, 2002 11:29 AM To: Christopher J. Wolff Cc: [EMAIL PROTECTED] Subject: Re: IP over in-ground cable applications. On Thu, 12 Sep 2002, Christopher J. Wolff wrote: Greetings, Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. The cable companies do this quite well; however, it's not immediately clear to me how I would multiplex the IP traffic and the existing video and deliver it to a home. Ya, build a new two-way HFC network. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. This way, integrating the video and data portion are easy, however the resident would need to buy a mpeg2 set-top-box to split out the video and internet. Thank you very much for your consideration. The issue is you only have 125 CMTS channels to deal with and most network have way to many homes passed per head end to make mpeg2 over IP practical solution. Nathan Stratton nathan at robotics.net http://www.robotics.net
Re: IP over in-ground cable applications.
In article cistron.002d01c25a89$997890b0$1809d440@Cartman, Christopher J. Wolff [EMAIL PROTECTED] wrote: Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. http://www.google.com/search?q=docsis Mike.
Re: IP over in-ground cable applications.
It is not quite clear to me what you have in mind - do you want to send exclusively IP television over the cable system, or do you want to fit IP into an existing system ? Current cable systems have separate parts of the spectrum reserved for analogue or digital television channels and the inbound and outbound IP. DOCSIS is a standard for sending data over a HFC system - see http://www.cablemodem.com/ There is lots of hardware for this from different vendors. If you want a new technology system, I would recommend multicast IP MPEG-2 over EPON - maybe in conjunction with MPLS - see http://www.iec.org/online/tutorials/epon/topic04.html If you are interested in setting up these multicasts or for content to put inside of this walled garden, please let me know :) I do not think that this is really germane to NANOG. Regards Marshall Eubanks Christopher J. Wolff wrote: Nathan, If your MPEG2 video were multicast streams, wouldn't that be a much more effective utilization of bandwidth? Regards, Christopher J. Wolff, CIO Broadband Laboratories, Inc. http://www.bblabs.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Nathan Stratton Sent: Thursday, September 12, 2002 11:29 AM To: Christopher J. Wolff Cc: [EMAIL PROTECTED] Subject: Re: IP over in-ground cable applications. On Thu, 12 Sep 2002, Christopher J. Wolff wrote: Greetings, Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. The cable companies do this quite well; however, it's not immediately clear to me how I would multiplex the IP traffic and the existing video and deliver it to a home. Ya, build a new two-way HFC network. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. This way, integrating the video and data portion are easy, however the resident would need to buy a mpeg2 set-top-box to split out the video and internet. Thank you very much for your consideration. The issue is you only have 125 CMTS channels to deal with and most network have way to many homes passed per head end to make mpeg2 over IP practical solution. Nathan Stratton nathan at robotics.net http://www.robotics.net -- T.M. Eubanks Multicast Technologies, Inc. 10301 Democracy Lane, Suite 410 Fairfax, Virginia 22030 Phone : 703-293-9624 Fax : 703-293-9609 e-mail : [EMAIL PROTECTED] http://www.multicasttech.com Test your network for multicast : http://www.multicasttech.com/mt/ Status of Multicast on the Web : http://www.multicasttech.com/status/index.html
Re: IP over in-ground cable applications.
On Thu, Sep 12, 2002 at 03:04:35PM -0400, Deepak Jain mooed: You would need multicast speakers (routers, etc) along the cable route to effectively multiple your bandwidth at all. Since cable is already multicasting (1 stream to many/all) I don't think I see any advantage. Unless, of course, you expect cable customers to be broadcasting to other cable customers (say their own home video content)... Then MPEG2 Multicast would be your friend. I don't think the answer is as simple as that. It really depends on the number of subscribers per last-hop multicast box, and on the number of channels you offer / popularity distribution of the channels. If you've got 5 channels and 10,000 subscribers per box, multicast saves you nothing. If you've got 1000 channels and 100 subscribers per box, ... -Dave -- work: [EMAIL PROTECTED] me: [EMAIL PROTECTED] MIT Laboratory for Computer Science http://www.angio.net/ I do not accept unsolicited commercial email. Do not spam me.
Re: IP over in-ground cable applications.
Christopher J. Wolff wrote: Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. Yes Chris, it's called DOCSIS. I would think that a CIO of a company named Broadband Labs would have a lab in which to experiment with cable. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. What about the neighborhoods with above-ground cable, how would you deliver service to them? Sal Sabella Get your free encrypted email at https://www.hushmail.com
RE: IP over in-ground cable applications.
Hi Sal, Thanks for the response. The 'Broadband' in Broadband Laboratories actually refers to the Microwave flavor of last-mile and long-haul data transmission. As a general operating philosophy, we eschew wired last-mile network solutions (DSL, Cable) as inefficient, costly to capitalize, and costly to maintain. For example, the local cable company spent over $100m for an HFC buildout of our local market which only covered 30% of the metropolitan area. I could probably cover 25 of the top metropolitan markets with that kind of capital :) Regards, Christopher J. Wolff, CIO Broadband Laboratories, Inc. http://www.bblabs.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED] Sent: Thursday, September 12, 2002 2:28 PM To: [EMAIL PROTECTED] Subject: Re: IP over in-ground cable applications. Christopher J. Wolff wrote: Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. Yes Chris, it's called DOCSIS. I would think that a CIO of a company named Broadband Labs would have a lab in which to experiment with cable. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. What about the neighborhoods with above-ground cable, how would you deliver service to them? Sal Sabella Get your free encrypted email at https://www.hushmail.com
Re: IP over in-ground cable applications.
At 02:28 PM 9/12/2002 -0700, [EMAIL PROTECTED] wrote: Christopher J. Wolff wrote: Can anyone recommend a method for integrating TCP/IP with an existing analog cable television network. Yes Chris, it's called DOCSIS. I would think that a CIO of a company named Broadband Labs would have a lab in which to experiment with cable. My current thoughts on this are to digitize the satellite video into mpeg2 and deliver it over TCP/IP through the in-ground cable. What about the neighborhoods with above-ground cable, how would you deliver service to them? What does above-ground vs. below ground have to do with delivering MPEG2?? I have digital cable with MPEG2 video, my cable Internet access (DOCSIS compliant), and analog cable stations even though the cable in my neighborhood is underground (as are all the utilities) and immediately outside my neighborhood by the main road all the utilities appear to go back up onto poles to get anywhere. It might just be a misleading illusion but I think it runs above ground to get to the cable company's office as do the phone lines which I know for a fact. The cable company that services the area where I work is talking about rolling out digital cable soon and all of the people in their service area have above ground utilities including cable. Am I obsessing and were you just being sarcastic or is there a technical reason why you stated this? Vinny Abello Network Engineer Server Management [EMAIL PROTECTED] (973)300-9211 x 125 (973)940-6125 (Direct) PGP Key Fingerprint: 3BC5 9A48 FC78 03D3 82E0 E935 5325 FBCB 0100 977A Tellurian Networks - The Ultimate Internet Connection http://www.tellurian.com (888)TELLURIAN
RE: IP over in-ground cable applications.
Thanks for the response. The 'Broadband' in Broadband Laboratories actually refers to the Microwave That makes sense. I have a question you might be able to answer. I've got some Cerent and Sycamore boxes, and I'm trying to locate a GE Advantium line card. We're fixing to sell Advantium wavelenghts on the same glass as gig-e and OC-x's, catering primarily to the hospitality and food services industry, by Q1 2003. You could even say I bet on it with my boss. Know where I can buy one? Also, what type of performance have you seen with Advantium vs. conventional microwave-based transport technologies? Sal Sabella Get your free encrypted email at https://www.hushmail.com
RE: IP over in-ground cable applications.
Sal, I'm not a big fan of GE period; too many recalls. However you might want to take a look at Jennair. Here's my favorite. http://www.jennair.com/ja/products/prod_detail.jsp?model=WW30430Pcs=0B V_UseBVCookie=Yes Regards, Christopher J. Wolff, CIO Broadband Laboratories, Inc. http://www.bblabs.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, September 12, 2002 3:33 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: IP over in-ground cable applications. Thanks for the response. The 'Broadband' in Broadband Laboratories actually refers to the Microwave That makes sense. I have a question you might be able to answer. I've got some Cerent and Sycamore boxes, and I'm trying to locate a GE Advantium line card. We're fixing to sell Advantium wavelenghts on the same glass as gig-e and OC-x's, catering primarily to the hospitality and food services industry, by Q1 2003. You could even say I bet on it with my boss. Know where I can buy one? Also, what type of performance have you seen with Advantium vs. conventional microwave-based transport technologies? Sal Sabella Get your free encrypted email at https://www.hushmail.com
RE: IP over in-ground cable applications.
Sal, I've been called a lot of things, but moron isn't one of them. It's been fun playing. Regards, Christopher J. Wolff, CIO Broadband Laboratories, Inc. http://www.bblabs.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, September 12, 2002 3:46 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: IP over in-ground cable applications. I'm not a big fan of GE period; too many recalls. However you might want to take a look at Jennair I had a bet with my boss that GE would bring good things to life. Please don't tell me I lost. Sal Sabella Get your free encrypted email at https://www.hushmail.com
RE: IP over in-ground cable applications.
Let's try and limit the name calling to the playground, and stick to the mailing list charter. Unless either of you two has something topical to discuss, this discussion should be taken to private email and not the mailing list. Sameer -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Thursday, September 12, 2002 8:27 PM To: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: IP over in-ground cable applications. I've been called a lot of things, but moron isn't one of them. Want to make a bet on it with your boss? Moron. Sal Sabella
