From owner-freebsd-hackers Sun Jun 25 11:52:49 1995 Return-Path: hackers-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.10/8.6.6) id LAA01908 for hackers-outgoing; Sun, 25 Jun 1995 11:52:49 -0700 Received: from UUCP-GW.CC.UH.EDU (root@UUCP-GW.CC.UH.EDU [129.7.1.11]) by freefall.cdrom.com (8.6.10/8.6.6) with SMTP id LAA01891 for ; Sun, 25 Jun 1995 11:52:45 -0700 Received: from Taronga.COM by UUCP-GW.CC.UH.EDU with UUCP id AA05407 (5.67a/IDA-1.5); Sun, 25 Jun 1995 13:42:12 -0500 Received: by bonkers.taronga.com (smail2.5p) id AA15151; 25 Jun 95 13:41:29 CDT (Sun) Received: (from peter@localhost) by bonkers.taronga.com (8.6.11/8.6.6) id NAA15148; Sun, 25 Jun 1995 13:41:28 -0500 From: Peter da Silva Message-Id: <199506251841.NAA15148@bonkers.taronga.com> Subject: Re: FreeBSD as a router To: dennis@et.htp.com (dennis) Date: Sun, 25 Jun 1995 13:41:28 -0500 (CDT) Cc: phk@freefall.cdrom.com, freebsd-hackers@freebsd.org In-Reply-To: <199506251650.MAA26983@mail.htp.com> from "dennis" at Jun 25, 95 12:50:53 pm X-Mailer: ELM [version 2.4 PL23] Content-Type: text Content-Length: 797 Sender: hackers-owner@freebsd.org Precedence: bulk > are starting to do cell switching). This is also why when you chose an > internet provider make sure that your provider has high-speed connectivity, > because a 56k line to a router with a 56k connection only yields 28k to the > "real" net. You're still confusing latency with throughput. Even on a single connection: interface 1 interface 2 packet 1 comes in idle packet 2 comes in packet 1 comes out packet 3 comes in packet 2 comes out ... packet N comes in packet N-1 comes out idle packet N comes out Latency, t(packet). Total elapsed time, t = t(packet)*(N+1). Total throughput, T = T(interface)*(N/(N+1)). So, for a single packet, thoughput is halved. For an FTP session involving 10,000 packets, throughput is reduced by 1/10001. Latency remains t(packet).