From owner-freebsd-net@FreeBSD.ORG Fri Apr 11 22:59:49 2003 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CFF7E37B401 for ; Fri, 11 Apr 2003 22:59:49 -0700 (PDT) Received: from usc.edu (usc.edu [128.125.253.136]) by mx1.FreeBSD.org (Postfix) with ESMTP id 350B443FBF for ; Fri, 11 Apr 2003 22:59:49 -0700 (PDT) (envelope-from kunchanl@pollux.usc.edu) Received: from pollux.usc.edu (kunchanl@pollux.usc.edu [128.125.7.29]) by usc.edu (8.9.3.1/8.9.3/usc) with ESMTP id WAA10187 for ; Fri, 11 Apr 2003 22:59:49 -0700 (PDT) Received: from localhost (kunchanl@localhost) by pollux.usc.edu (8.9.3.1/8.9.3/usc) with ESMTP id WAA04138 for ; Fri, 11 Apr 2003 22:59:48 -0700 (PDT) Date: Fri, 11 Apr 2003 22:59:48 -0700 (PDT) From: kunchanl To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Subject: no carrier X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Apr 2003 05:59:50 -0000 Hi all, I'm trying to collect some trace on a campus network. However, I've been experiencing something strange and couldn't figure out what is the problem. I'm wondering if any of you can shed me some light. Here is the story: The network admin has mirrored the traffic on one of the unused ports on the switch for me. But after I connected the port on the switch to my network interface card with a fiber cable, I only saw the LED light (RX/TX) on the switch port flashing, but not theh LED light (LINK/DATA) on my interface card. I also didn't see the light come out from the other end of cable, which I was told I supposedly to see. Here is the output of my ifconfig vin# ifconfig -m ti0 ti0: flags=8843 mtu 1500 options=13 capability list: =13 inet6 fe80::2a0:ccff:fe73:3523%ti0 prefixlen 64 scopeid 0x4 inet 10.0.0.1 netmask 0xfffff000 broadcast 10.0.15.255 ether 00:a0:cc:73:35:23 media: Ethernet 1000baseSX (autoselect) status: no carrier supported media: media autoselect media 1000baseSX mediaopt full-duplex media 1000baseSX I'm sure my network card is working fine because I've used it before to collect other traffic. The network admin also told me there is nothing wrong with mirroring because he keeps seeing packet counts for that particular port increasing. the OS I'm running is FreeBSD 5.0 the network card is Netgear GA620 the switch is CABLETRON smartswitch 6000 I'm using a MTRJ-SC fiber optic cable like this one http://store.yahoo.com/fiberopticcables/mmdup625-mtsc.html to connect the switch port and my network card. The switch side is connected with MTRJ connector and the PC side is connected with a pair of SC connectors. Thanks Kun-chan