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Article #485Re: cable guy "vapor"-izes DSL 3X cable TV troll!
From: Randy S.
Date: Thu, 01 Feb 2001 23:18
Date: Thu, 01 Feb 2001 23:18
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> Of course most people want to talk to something beyond the CMTS or DSLAM, so you > immediately face the limitation of the network upstream of the CMTS/DLSAM, which is > probably a bigger factor in network performance. And is of course just as big a factor for DSL as it is for Cable, yes. Thanks for the info Gary, I think I'm starting to get a good idea of how cable works. It sounds like any individual DOCSIS modem is set to only listen to very specific data channels, and it ignores all the others on the segment. So in order to get an idea of the amount of total traffic you would either have to modify the modem to listen to ALL of the channels (which sounds like it would not be easy to do) or have a different device that would listen to all the channels (which would be something a hacker would love to get a hold of, and therefore is probably not easy to get). So the ultimate question here is what is the typical range of oversubscription rates for cable segments? Is it significantly higher than DSL DSLAM rates (which we can at least make a rough stab at) or are the cable companies responsible enough to limit oversubscription to something reasonable? Randy S.
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1122a6,2145df83169cbbc6 X-Google-Attributes: gid1122a6,public X-Google-Thread: 113850,916316de6f72ceb X-Google-Attributes: gid113850,public X-Google-ArrivalTime: 2001-02-01 15:20:43 PST Path: arc1-ca.pugleaf.net!supernews.google.com!sn-xit-02!supernews.com!news.tele.dk!144.212.100.101!newsfeed.mathworks.com!sunqbc.risq.qc.ca!newsfeed.atl!news2.atl.POSTED!not-for-mail Message-ID: <3A79EED9.BB69D264@ufl.edu> From: "Randy S." <rswitt@ufl.edu> X-Mailer: Mozilla 4.74 [en] (Windows NT 5.0; U) X-Accept-Language: en MIME-Version: 1.0 Newsgroups: comp.dcom.modems.cable,bellsouth.net.support.adsl Subject: Re: cable guy "vapor"-izes DSL 3X cable TV troll! References: <3A648E27.6A7029EF@erols.com> <20010116192016044.AAA95@adsl-209-204-185-87.sonic.net@john.navasgroup.com> <3A64B680.2A79F24D@erols.com> <3A76B6CA.73B36B26@mynetwatchman.com> <0ulh7t43eschtuct7uk7r2vb00juacgbvc@4ax.com> <We6e6.6375$wI1.523562@news1.rdc1.mb.home.com> <3A797A8B.B1948ED9@ufl.edu> <G4ge6.36325$t3.6056810@typhoon.ne.mediaone.net> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Lines: 20 Date: Thu, 01 Feb 2001 18:18:50 -0500 NNTP-Posting-Host: 216.78.160.117 X-Trace: news2.atl 981069632 216.78.160.117 (Thu, 01 Feb 2001 18:20:32 EST) NNTP-Posting-Date: Thu, 01 Feb 2001 18:20:32 EST