{"id":699,"date":"2012-02-28T12:11:08","date_gmt":"2012-02-28T11:11:08","guid":{"rendered":"http:\/\/marc.storck.lu\/blog\/?p=699"},"modified":"2012-02-28T12:11:08","modified_gmt":"2012-02-28T11:11:08","slug":"ftth-modems-delivered-by-ept-are-faulty","status":"publish","type":"post","link":"https:\/\/marc.storck.lu\/blog\/2012\/02\/ftth-modems-delivered-by-ept-are-faulty\/","title":{"rendered":"FTTH Modems delivered by EPT are faulty"},"content":{"rendered":"<p>I have received the following fault explanation, originally written by an EPT engineer. The text seems to indicate that the current fiber equipment delivered and installed by EPT has issues to transport packets of a certain size. In the case of the user who forwarded this message, the fault was most apparent during VoIP calls using the G.711 codec.<\/p>\n<address style=\"padding-left: 30px;\">Le probl\u00e8me \u00e9tait li\u00e9 \u00e0 un protocole de correction d&#8217;erreurs au niveau upstream sur l&#8217;\u00e9quipement de terminaison de la fibre. Il semble qu&#8217;il y ait un bug au niveau de cet fonctionnalit\u00e9 qui fait que les paquets d&#8217;une taille de 200-201 bytes ne sont pas transmis correctement<br \/>\n(i.e. 80% de perte).<br \/>\nMalheureusement le protocole voip G711 que vous avez utilis\u00e9 g\u00e9n\u00e8re exactement cette taille de packets et \u00e9tait donc fortement impact\u00e9 alors que les autres flux de trafic et les diff\u00e9rents tests ne montraient pas d&#8217;erreurs.<br \/>\nSuite \u00e0 l&#8217;intervention de notre technicien sur place on a cependant pu cerner le probl\u00e8me et on a donc d\u00e9sactiv\u00e9 la fonctionnalit\u00e9 fautive sur votre acc\u00e8s en attendant un bug-fix de la part du fournisseur de<br \/>\nl&#8217;\u00e9quipement.<\/address>\n<p>&nbsp;<\/p>\n<p>So in case you are currently using the LuxFibre product and you have quality issues with VoIP applications, you might be affected by this bug. The workaround implies the intervention of an EPT technician.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I have received the following fault explanation, originally written by an EPT engineer. The text seems to indicate that the current fiber equipment delivered and installed by EPT has issues to transport packets of a certain size. In the case &hellip; <a href=\"https:\/\/marc.storck.lu\/blog\/2012\/02\/ftth-modems-delivered-by-ept-are-faulty\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[53],"tags":[51,71],"class_list":["post-699","post","type-post","status-publish","format-standard","hentry","category-internet-access","tag-ftth","tag-luxembourg"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>FTTH Modems delivered by EPT are faulty - Marc&#039;s Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/marc.storck.lu\/blog\/2012\/02\/ftth-modems-delivered-by-ept-are-faulty\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"FTTH Modems delivered by EPT are faulty - Marc&#039;s Blog\" \/>\n<meta property=\"og:description\" content=\"I have received the following fault explanation, originally written by an EPT engineer. 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