{"id":574,"date":"2014-02-15T14:11:56","date_gmt":"2014-02-15T12:11:56","guid":{"rendered":"http:\/\/bergs.biz\/blog\/?p=574"},"modified":"2014-02-15T14:13:13","modified_gmt":"2014-02-15T12:13:13","slug":"windows-7-pppoe-protokoll-schlecht-implementiert","status":"publish","type":"post","link":"https:\/\/bergs.biz\/blog\/2014\/02\/15\/windows-7-pppoe-protokoll-schlecht-implementiert\/","title":{"rendered":"Windows 7 PPPoE-Protokoll schlecht implementiert?"},"content":{"rendered":"<p>Anl\u00e4\u00dflich eines Problems mit meinem Vodafone 16 MBit\/s-DSL-Anschluss &#8212; Geschwindigkeit ging pl\u00f6tzlich dramatisch in die Knie, ca. 1-2 MBit\/s nur noch! &#8212; habe ich testweise die PPPoE-Verbindung direkt vom Laptop unter Windows 7 \u00fcber das Arcor-DSL Speed-Modem 200 zum Konzentrator bei Vodafone aufgebaut. Auf diese Weise wurde das Modem als &#8220;Schuldiger&#8221; ausgemacht: Ein baugleiches Ersatzmodem lieferte sofort \u00fcber 14 MBit\/s!.<\/p>\n<p>Nachdem ich dann wieder das DSL-Modem mit dem TP-Link TL-WDR3500-Router (mit <a href=\"http:\/\/wiki.openwrt.org\/toh\/tp-link\/tl-wdr3500\" target=\"_blank\">OpenWRT als Firmware<\/a>) verkabelt hatte, stellte ich pl\u00f6tzlich erstaunt Folgendes fest: Die Ping-Round-Trip-Zeiten gingen von 31-32 ms (unter Windows 7 als PPPoE-Client) deutlich herunter auf 21 ms (mit OpenWRT Barrier Breaker r39582 als PPPoE-Client). Das ist insofern sehr erstaunlich, da ja nun eine 802.11an-WLAN-Strecke und der Router als zus\u00e4tzliche Latenz erzeugende &#8220;Komponenten&#8221; hinzu kamen!<\/p>\n<p>Ich interpretiere das so, dass die PPPoE-Implementierung unter OpenWRT der von Windows 7 deutlich \u00fcberlegen ist, da sie offensichtlich &#8220;schneller&#8221; bzw. &#8220;effizienter&#8221; ist. Bevor jetzt jemand sagt &#8220;Vielleicht hast Du einen kr\u00f6tenlangsamen Laptop verwendet?&#8221; &#8212; nein, das ist nicht der Fall, es war ein Lenovo X220 mit einem Core i5-Prozessor mit 2.5 GHz&#8230;. Und der Laptop war dauernd &#8220;idle&#8221;&#8230; \ud83d\ude42<\/p>\n<p>Eure Meinung zu dieser Interpretation w\u00fcrde mich sehr interessieren, daher w\u00fcrde ich mich \u00fcber Kommentare freuen.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Die PPPoE-Implementierung von Windows 7 scheint nicht sonderlich effizient zu sein, wie ein Vergleich mit der von OpenWRT ergab.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[58,4,84],"tags":[109,83,108,110,111],"class_list":["post-574","post","type-post","status-publish","format-standard","hentry","category-communications","category-computers","category-networking-computers","tag-dsl","tag-openwrt","tag-pppoe","tag-vodafone","tag-windows-7"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Windows 7 PPPoE-Protokoll schlecht implementiert? 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