Date: Tue, 29 Feb 2000 13:37:42 -0500 From: Dennis <dennis@etinc.com> To: "Mark Holloway" <mholloway@flashmail.com>, <freebsd-isp@FreeBSD.ORG> Subject: Re: OC3 versus T1 Circuits Message-ID: <200002291838.NAA29138@etinc.com> In-Reply-To: <002001bf82d5$7f5a6a20$a52410ac@sierrahealth.com>
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Why would you use bonded T1s rather than a HSSI frac T3, which would allow you to set any speed up to T3? You could build a freebsd box with hssi for under 4K and have the maximum flexibility. Dennis At 08:53 AM 2/29/00 -0800, Mark Holloway wrote: > > I have a situation and maybe some of you can please advise: > > I have a core LAN/MAN/WAN campus with approximately 80 servers. I have about > ten different remote sites throughout the city (the MAN) which clients log > into a Windows NT domain and then access certain applications. Until late > 1999 they were running these applications in a client/server fashion. The > ten sites are all on a shared FDDI ring, but each location is a 10MB, shared, > half duplex connection. The original strategy was to have a full OC3 from > the main campus going to a Sprint Central Office, then have 10MB fractional > OC3 going to each site (almost like Frame Relay in the MAN). However, we > have since setup many Windows Terminal Servers (25 servers @ 200 clients per > server) and the clients are using Citrix on their local desktops. This > solution works well. But now I am wondering if the fractional OC3 is > overkill?? I was thinking maybe either a T1 line or two T1 lines bonded for > EACH SITE rather than a 10MB OC3 for each site would be more realistic? Is a > T1 really .15 MB? Or 1.5MB? I think the slowness that most people > experience is due to the nature of the FDDI. Each site averages about 60 > clients, but a couple have up to 150 clients. When using Citrix everything > runs fine. The only apps they would run locally are Outlook and some telnet > sessions (pure ANSI, little overhead). > > I apologize if this is too off topic, but I've always tried to contribute to > this list whenever possible. One thing to keep in mind is that for each OC3 > remote connection we were going to buy a 3Com Pathbuilder 330 (designed for > fractional OC3). This is approximately $12,000 + the Pathbuilder 700 > Ethernet blade for the the WAN switch at the main campus (another several > thousand dollars). A Cisco 2500 or 2600 with bonded T1 is under $2000. > > PLEASE, if anyone has any insite, feedback, or comments, I'd really > appreciate it. > > Regards, > Mark > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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