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Article #95871Re: Acterna FST 2802
From: Frutka
Date: Mon, 02 Jan 2012 20:34
Date: Mon, 02 Jan 2012 20:34
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2303 bytes
"dacula" napisał w wiadomości grup dyskusyjnych:2aaf4348-3819-4a83-b899-cb488d157e71@m10g2000vbc.googlegroups.com... Witam, czy korzystal moze ktos z Was z tego modelu miernika? Chcialbym za jego pomoca wykonac wiarygodny pomiar L2 za pomoca ramek multicast, ale niestety mimo zalozenia petli potrafie uzyskac tylko strumien w jednym kierunku. Dla unicastow bez problemu przy petli moge wykonac test, a multicasty nie wracaja. --- A jak sobie wyobrażasz wygenerowanie w mierniku certyfikacyjnym czegoś nielegalnego?: IEEE 802.3-2002, Section 3.2.3(b): "The first bit (LSB) shall be used in the Destination Address field as an address type designation bit to identify the Destination Address either as an individual or as a group address. If this bit is 0, it shall indicate that the address field contains an individual address. If this bit is 1, it shall indicate that the address field contains a group address that identifies none, one or more, or all of the stations connected to the LAN. In the Source Address field, the first bit is reserved and set to 0. ". Jeżeli łącze jest typu L1 (np. DWDM) to zrób po prostu pętlę fizyczną i ci ramki wrócą bez zamiany adresów src<->dst.
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Path: mbox-mo1.pugleaf.net!news-archive.icm.edu.pl!news.icm.edu.pl!news.nask.pl!news.nask.org.pl!news.internetia.pl!not-for-mail From: "Frutka" <ewcia@niema.pl> Newsgroups: pl.internet.polip Subject: Re: Acterna FST 2802 Date: Mon, 2 Jan 2012 21:34:29 +0100 Organization: Netia S.A. Lines: 33 Message-ID: <jdt4dj$p1p$1@mx1.internetia.pl> References: <2aaf4348-3819-4a83-b899-cb488d157e71@m10g2000vbc.googlegroups.com> NNTP-Posting-Host: 77-255-63-119.adsl.inetia.pl Mime-Version: 1.0 X-Trace: mx1.internetia.pl 1325536499 25657 77.255.63.119 (2 Jan 2012 20:34:59 GMT) X-Complaints-To: abuse@inetia.pl NNTP-Posting-Date: Mon, 2 Jan 2012 20:34:59 +0000 (UTC) X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3508.1109 In-Reply-To: <2aaf4348-3819-4a83-b899-cb488d157e71@m10g2000vbc.googlegroups.com> X-Tech-Contact: usenet@internetia.pl X-Newsreader: Microsoft Windows Live Mail 15.4.3508.1109 Importance: Normal X-Priority: 3 X-Server-Info: http://www.internetia.pl/ X-MSMail-Priority: Normal Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit