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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!nntp.coast.net!news2.acs.oakland.edu!wsu-cs!newsxfer.itd.umich.edu!news.flint.umich.edu!news.gmi.edu!zombie.ncsc.mil!news.mathworks.com!newsfeed.internetmci.com!heathers.stdio.com!heathers.stdio.com!not-for-mail From: risner@stdio.com (James Risner) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: [Q] ISP :new to ISDN : Pointers? Date: 28 Jun 1996 21:34:20 -0400 Organization: Open World Lines: 81 Message-ID: <4r216s$p20@heathers.stdio.com> References: <4q5815$h7l@news.corpcomm.net> <Pine.3.91.960618005848.5013D-100000@fog.cs.odu.edu> <4q6ijt$rsv@hops.entertain.com> <31C9C03C.22722C64@lambert.org> NNTP-Posting-Host: heathers.stdio.com X-Newsreader: TIN [version 1.2 PL2] Terry this all depends on where you live. Here in Lexington, KY with GTE ISDN is much better: Terry Lambert (terry@lambert.org) wrote: : Actually, ISDN sucks relative to Frame Relay: : Frame Relay ISDN : ---------------------------- ---------------------------- : Scales from 64k to DS3 Scales from 64k to 128k : speeds (128k requires additional : hardware for channel : bonding) Frame requires a router ISDN Router like Ascend P25 or and CSU/DSU/TSU. Gandalf 5242i is the whole ball of wax. Cheap Cisco + CSU/DSU They actually cost like $600-$900 = $2050 So less than half the money. You solid on the non-scaling issue, ISDN is stuck at 128K. : Connections can not be Connections can be metered, : metered, so is flat rate so they inevitibly are ISDN in GTE is metered, but for $2.50 a month you can turn that off. Get yourself and all your numbers listing in your business group and pay the $2.50 a month per BRI and you never see a meter charge again even for 24/7 (we have over 8 ISDN BRI that we never see a per minute charge on and they are all set to never hang up the line) : Requires no DTMF hardware Requires customer have DTMF : be purchased by customer hardware to establish initial : connection Most ISDN TA's (routers) have builting NT1 and besides these NT1's cost less than a CSU/DSU and as far as I am concerned they do similar functions. : Network access; not distance Endpoint access; chargeable : chargeable. Promotes use of by destination, so distance : LD carries by pipe size, not charges are unrelated to : detination real equipment usage You DO want to use Frame when you travel long distance like as far as a long distance telephone call, since it will cross carriers and under ISDN this is "long distance" and you will be billed LD charges. : "Oversell" based overcomit "Oversell" based overcommit : results in potential for results in potential for : mild service degradation denial of service for all : down to commitment margin sites in commitment margin Well, in GTE/Lexington Frame Relay is almost unusable. I have four clients with 56 to 256 K Frame connections. They all come into a T1 Frame at the ISP office. The 56 guys get great telnet and ok web access. But if they are doing a FTP, throughput tests (tcpblast), or images on web sites there performance goes to nothing. tcpblast for a half of an hour in 2 am in the morning when NOTHING else (according to tcpdump) went across the line provides 780 BYTES PER SECOND THROUGHPUT (should get like 6K bytes) and anything done during activity like this is SLOW and comes in big BURSTS spread far apart. We isolate the INTERNET by doing this to servers on the ethernet ACROSS the CLOUD. This very well may be a problem with Frame Relay in Lexington. I don't think GTE has provided Frame in Lexington for more than two years while they have had ISDN for over 5 years here. : TCI, are you listening? I know you are going 10Mbit/S via : cable modem in Phoenix in late 1996/early 1997. Come to : Tucson, and you can have me and most of my friends in the : area. It's unlikely that ISDN will be dumped in favor of : FR, or the prices dropped to anywhere near the prices range : you are charging for @HOME ( http://www.athome.com ) : service... act now and solidify your market. TCI is in Lexington and claiming 10Mbit/s uplink and downlink. Apparently due to some local regulation to provide "local education programming" that never arrived TCI was required to install two cables for each house. This extra cable is now designed as Internet cable and they are selling ports for $400 a month which gives you 10Mbit up and down (Ethernet across TCI local service area) and 128Kbit to the Internet. The only problem is the company they have doing the Internet side is clueless and has MANY performance problems. Risner