From owner-freebsd-questions@FreeBSD.ORG Tue Jul 4 07:43:57 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5028016A4DD for ; Tue, 4 Jul 2006 07:43:57 +0000 (UTC) (envelope-from nvass@teledomenet.gr) Received: from matrix.teledomenet.gr (dns1.teledomenet.gr [213.142.128.1]) by mx1.FreeBSD.org (Postfix) with ESMTP id 48F4A43D4C for ; Tue, 4 Jul 2006 07:43:55 +0000 (GMT) (envelope-from nvass@teledomenet.gr) Received: from iris ([192.168.1.71]) by matrix.teledomenet.gr (8.12.10/8.12.10) with ESMTP id k647hsEY030786; Tue, 4 Jul 2006 10:43:54 +0300 From: Nikos Vassiliadis To: freebsd-questions@freebsd.org Date: Tue, 4 Jul 2006 10:41:20 +0300 User-Agent: KMail/1.9.1 References: <51d7a5160607031749n24e8ebe1lfb6d34c2a37e3d10@mail.gmail.com> In-Reply-To: <51d7a5160607031749n24e8ebe1lfb6d34c2a37e3d10@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200607041041.21582.nvass@teledomenet.gr> Cc: perikillo Subject: Re: Ports doubt, check network performance...? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 04 Jul 2006 07:43:57 -0000 On Tuesday 04 July 2006 03:49, perikillo wrote: > Hi people. > > I have some problems on my network, and i want to use my freebsd > box to see if i can find the problems on my network, we have two > networks in two countrys connected by a private link, but i have seen > just a couple a weeks ago that we have some problems between both > links, we are lossing packets if i ping some server on the other link, > some times i get 36% of packets loss, is to but to much on bussines > hours. 36% packet loss is very high, it will almost make TCP unusable. ping is your tool. Use -s 500 to 1500 to simulate some-how real traffic situation. I guess you have a point-to-point link between the two offices, connected to a router? Do you administer these routers? Do know your bandwidth utilization? Are you sure your link is OK? check this with your service provider. Either you link is bad or you use all your available bandwidth. > > I want to use my freebsd box running 6.0 but just want to know if > some one could recomend me wich ports to check to see if i can find > wich device is causing this problem. FreeBSD can not help you much with this. Unless FreeBSD is the router in question. Or you could pass all traffic from a FreeBSD box in order to know what's going on. something like this central-switch------FBSD------router-1=====router-2 [--------------------LAN--------------------] [-----WAN-----]