From owner-freebsd-isp Tue Feb 29 10:38:16 2000 Delivered-To: freebsd-isp@freebsd.org Received: from etinc.com (et-gw.etinc.com [207.252.1.2]) by hub.freebsd.org (Postfix) with ESMTP id 57E3A37BC78 for ; Tue, 29 Feb 2000 10:38:12 -0800 (PST) (envelope-from dennis@etinc.com) Received: from dbsys (dbsys.etinc.com [207.252.1.18]) by etinc.com (8.9.3/8.9.3) with SMTP id NAA29138; Tue, 29 Feb 2000 13:38:49 -0500 (EST) Message-Id: <200002291838.NAA29138@etinc.com> X-Sender: dennis@etinc.com X-Mailer: QUALCOMM Windows Eudora Pro Version 4.0 Date: Tue, 29 Feb 2000 13:37:42 -0500 To: "Mark Holloway" , From: Dennis Subject: Re: OC3 versus T1 Circuits In-Reply-To: <002001bf82d5$7f5a6a20$a52410ac@sierrahealth.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org 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:=20 > > I have a situation and maybe some of you can please advise: > =A0 > I have a core LAN/MAN/WAN campus with approximately 80 servers.=A0 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.=A0 Until= late > 1999 they were running these applications in a client/server fashion.=A0= The > ten sites are all on a shared FDDI ring, but each location is a 10MB, shared, > half duplex connection.=A0 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).=A0 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.=A0 This > solution works well.=A0 But now I am wondering if the fractional OC3 is > overkill??=A0 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?=A0 Is a > T1 really .15 MB?=A0 Or 1.5MB?=A0=A0 I think the slowness that most people > experience is due to the nature of the FDDI.=A0 Each site averages about= 60 > clients, but a couple have up to 150 clients.=A0 When using Citrix= everything > runs fine.=A0 The only apps they would run locally are Outlook and some= telnet > sessions (pure ANSI, little overhead).=A0=20 > =A0 > I apologize if this is too off topic, but I've always tried to contribute= to > this list whenever possible.=A0 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).=A0 This is approximately $12,000 + the Pathbuilder 700 > Ethernet blade for the the WAN switch at the main campus (another several > thousand dollars).=A0 A Cisco 2500 or 2600 with bonded T1 is under $2000.= =A0=20 > =A0 > PLEASE, if anyone has any insite, feedback, or comments, I'd really > appreciate it.=20 > =A0 > Regards, > Mark > =A0 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message