{"id":59,"date":"2014-09-06T06:00:28","date_gmt":"2014-09-06T05:00:28","guid":{"rendered":"http:\/\/pensalla.cat\/?p=59"},"modified":"2014-12-30T21:29:25","modified_gmt":"2014-12-30T20:29:25","slug":"com-podriem-evitar-el-col%c2%b7lapse-a-la-xarxa-i-comunicar-nos-durant-la-v","status":"publish","type":"post","link":"https:\/\/pensalla.cat\/?p=59","title":{"rendered":"Com podr\u00edem evitar el col\u00b7lapse a la xarxa i comunicar-nos durant la V?"},"content":{"rendered":"<div style=\"padding-top:0px;\t\r\npadding-right:0px;\r\npadding-bottom:0px;\r\npadding-left:0px;\r\nmargin-top:0px;\r\nmargin-right:0px;\r\nmargin-bottom:0px;\r\nmargin-left:0px;\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" \r\n\t\t\t\t        data-url=\"https:\/\/pensalla.cat\/?p=59\" \r\n\t\t\t\t        data-via=\"jjofra\"\r\n\t\t\t\t\t    data-text=\"Com podr\u00edem evitar el col\u00b7lapse a la xarxa i comunicar-nos durant la V?\"\r\n\t\t\t\t\t    data-related=\"\"\r\n\t\t\t\t\t    data-count=\"none\"\r\n\t\t\t\t\t    data-hashtags=\"\"\r\n\t\t\t\t\t    data-lang=\"autoLANGauto\"\r\n\t\t\t\t\t    data-counturl=\"pensalla.cat\"\r\n\t\t\t\t\t    data-size=\"medium\"\r\n\t\t\t\t\t    data-dnt=\"false\"\t> Tweet <\/a> <\/div>\r\n\t\t                <script>\r\n\t\t\t\t\t    !function(d,s,id) {\r\n\t\t\t\t\t      var js,fjs=d.getElementsByTagName(s)[0];\r\n\t\t\t\t\t      if(!d.getElementById(id)) {\r\n\t\t\t\t\t       js=d.createElement(s);js.id=id;js.src=\"https:\/\/platform.twitter.com\/widgets.js\";fjs.parentNode.insertBefore(js,fjs);\r\n\t\t\t\t\t      }\r\n\t\t\t\t\t    }\r\n\t\t\t\t\t   (document,\"script\",\"twitter-wjs\");\r\n\t\t\t\t\t    <\/script><p><a href=\"http:\/\/player.vimeo.com\/video\/105328257?title=0&amp;byline=0&amp;portrait=0&amp;color=ff9933\" target=\"_blank\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" size-full wp-image-218 aligncenter\" src=\"https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/09\/20140905-gym-tv.png?resize=500%2C274\" alt=\"20140905 gym tv\" width=\"500\" height=\"274\" \/><\/a><\/p>\n<p>En primer lloc, que quedi clar, hi haur\u00e0 col\u00b7lapse, per\u00f2 podem intentar minimitzar-lo. No ser\u00e0 igual a tot arreu, tampoc: els qui siguin a la part m\u00e9s central de la Diagonal, la zona de negocis, tindran una millor cobertura perqu\u00e8 les operadores hi tenen m\u00e9s repetidors per donar servei a les empreses. Passar\u00e0 el mateix a la Gran Via, cap a la zona del passeig de Gr\u00e0cia hi haur\u00e0 m\u00e9s bona cobertura pel mateix motiu.<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\" size-medium wp-image-60 alignright\" src=\"https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V-300x192.jpg?resize=300%2C192\" alt=\"20140905 wifi a la V\" width=\"300\" height=\"192\" srcset=\"https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg?resize=300%2C192&amp;ssl=1 300w, https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg?resize=100%2C64&amp;ssl=1 100w, https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg?resize=150%2C96&amp;ssl=1 150w, https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg?resize=200%2C128&amp;ssl=1 200w, https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg?resize=450%2C289&amp;ssl=1 450w, https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/12\/20140905-wifi-a-la-V.jpg?w=474&amp;ssl=1 474w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Cal explicar que les antenes que les operadores posen per permetre les comunicacions de dades i de veu estan calculades per les operacions normals del dia a dia i reparteixen la seva capacitat entre veu i dades. Les operadores les posen i les configuren segons les estat\u00edstiques d\u2019\u00fas que tenen, aix\u00ed que potser us quedeu sense dades, per\u00f2 la veu funciona o viceversa.<\/p>\n<p><a href=\"https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/09\/20140905-wifi-a-la-V_nuvol.png\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-287\" src=\"https:\/\/i0.wp.com\/pensalla.cat\/wp-content\/uploads\/2014\/09\/20140905-wifi-a-la-V_nuvol.png?resize=750%2C305\" alt=\"20140905 wifi a la V_nuvol\" width=\"750\" height=\"305\" \/><\/a><\/p>\n<p>Per\u00f2 la resta&#8230;, haurem de confiar en el wi-fi i seguir alguns consells. Alguns d\u2019aquests consells, els haureu de seguir per for\u00e7a, vulgueu o no, perqu\u00e8 no tindreu opci\u00f3:<\/p>\n<p>a) Fer servir Twitter o Whatsapp, que consumeixen molt poca amplada de banda, i \u2018apagar\u2019 Facebook, per exemple. El Whatsapp, abans d\u2019enviar una foto, en redueix la qualitat perqu\u00e8 ocupi menys bytes i aix\u00ed s&#8217;envia m\u00e9s r\u00e0pidament i consumint menys amplada de banda.<\/p>\n<p>b) Procureu de compartir poques fotos i encara menys v\u00eddeos, espereu que comenci a tornar la gent a casa.<\/p>\n<p>c) Intenteu de cerca wi-fis obertes, com les de l\u2019Ajuntament de Barcelona, xarxes com Guifi.Net i wi-fis d\u2019operadores. Ono, per exemple, t\u00e9 wi-fi a disposici\u00f3 dels seus clients (i els qui no en s\u00f3n poden provar-ho trenta dies).<\/p>\n<p>d) Si res d\u2019aix\u00f2 no funciona, els SMS encara us poden treure d\u2019un problema perqu\u00e8 fan servir l\u2019amplada de banda de veu que, segons com vagin les coses, estar\u00e0 menys col\u00b7lapsada.<\/p>\n<p><strong>I si els ve\u00efns obren la wi-fi?<\/strong><\/p>\n<p>El primer problema ser\u00e0 la dist\u00e0ncia: la Diagonal i la Gran Via s\u00f3n carrers molt amples i costar\u00e0 que arribi el senyal, per\u00f2 tot hi ajuda. Si aconseguim de repartir la c\u00e0rrega entre el 3G, el 4G, les wi-fis p\u00fabliques i de les operadores i les wi-fis particulars, podem fer-ho m\u00e9s suportable&#8230; Per\u00f2 recordeu que patirem.<\/p>\n<p>La millor recepta perqu\u00e8 el vostre router doni servei a la V \u00e9s posant-lo al balc\u00f3. Penseu que nom\u00e9s necessita dos cables, el de corrent (i un allargador fa el fet) i el de tel\u00e8fon fins a la paret, que pot \u00e9sser tan llarg com vulgueu.<\/p>\n<p><strong>Com obrim la wi-fi?<\/strong><\/p>\n<p>Si el vostre router o encaminador t\u00e9 l\u2019opci\u00f3 de \u2018xarxa de convidats\u2019, i tots els moderns la tenen, podreu obrir-la amb l\u2019aparent \u2018seguretat\u2019 de no posar els vostres ordinadors a l\u2019abast de qui faci servir el vostre router, aparent perqu\u00e8 qualsevol mitjanament preparat pot entrar al vostre router wi-fi en pocs segons, estigui protegit o no. Aix\u00f2 ja ho hem explicat moltes vegades.<\/p>\n<p>La xarxa de convidats, el que fa \u00e9s crear una xarxa independent de la vostra de treball o de casa, aix\u00ed no es barregen els ordinadors i tenen m\u00e9s seguretat aparent. Una vegada passada la V, tenir una xarxa de convidats \u00e9s una bona opci\u00f3 per no haver d\u2019anar dient als nostres convidats quina \u00e9s la nostra contrasenya per accedir a internet.<\/p>\n<p>A la foto 1 teniu un exemple de la pantalla de configuraci\u00f3 de l&#8217;Airport d\u2019Apple: tot el que heu de fer \u00e9s activar la xarxa de convidats, donar-hi un nom i dir-li que no t\u00e9 cap sistema de seguretat.<\/p>\n<p>Configurar un router d\u2019una operadora requereix saber-ne la contrasenya (la d\u2019administrar el router, no la d\u2019accedir a la xarxa) i tamb\u00e9 quina \u00e9s l&#8217;adre\u00e7a IP.<\/p>\n<p>Per saber el password, si els habituals \u2018admin\u2019 \u2018admin\u2019 o b\u00e9 \u2018admin\u2019 \u20181234\u2019 no us serveixen, aneu a Google i poseu el nom del vostre router i la paraula &#8216;password&#8217;: veureu com us surten moltes p\u00e0gines on us diuen quina \u00e9s la contrasenya que t\u00e9 el router quan surt de f\u00e0brica.<\/p>\n<p>L\u2019adre\u00e7a IP del vostre router acostuma a ser 192.168.0.1. En cas contrari, mireu quina \u00e9s l\u2019adre\u00e7a IP del vostre ordinador (al panell de control): l\u2019adre\u00e7a t\u00e9 un grup de 4 n\u00fameros, canvieu el n\u00famero final per un 1 i quasi segur que ser\u00e0 l\u2019adre\u00e7a del vostre router (per exemple, si el vostre ordinador t\u00e9 l\u2019adre\u00e7a 192.168.34.23, probablement el router ser\u00e0 192.168.34.1).<\/p>\n<p>Per configurar-lo i obrir la xarxa de convidats, agafeu el navegador i a l\u2019adre\u00e7a on voleu anar poseu http:\/\/192.168.0.1 (o l\u2019adre\u00e7a IP que tingui).<\/p>\n<p>A la captura de pantalla de la foto 2 teniu l\u2019exemple d&#8217; un router de Sagem (els que posa Orange): cal anar a la p\u00e0gina de wireless i descobrir l\u2019opci\u00f3 amagada de \u2018xarxa de convidats\u2019 (Enable Guest SSID) que no veureu fins que feu clic a \u2018configuraci\u00f3 avan\u00e7ada\u2019 (Enable Advances Wireless Configuration).<\/p>\n<p>I, finalment, a la foto 3 un exemple del router Netgear que fa servir Ono per a les seves instal\u00b7lacions de fibra.<\/p>\n<p>Si el vostre router no t\u00e9 aquesta opci\u00f3 i us creieu que seria perill\u00f3s per als vostres equips perqu\u00e8 alg\u00fa hi podria entrar, la soluci\u00f3 m\u00e9s senzilla \u00e9s apagar-los. De fet, si sou a la V no el fareu servir, aix\u00ed que un equip apagat redueix molt el risc que alg\u00fa hi entri.<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/d1pgpw7zkb4oww.cloudfront.net\/whisp32\/x0j\/em\" width=\"50%\" height=\"160\" frameborder=\"no\" scrolling=\"no\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<div style=\"padding-top:0px;\t\r\npadding-right:0px;\r\npadding-bottom:0px;\r\npadding-left:0px;\r\nmargin-top:0px;\r\nmargin-right:0px;\r\nmargin-bottom:0px;\r\nmargin-left:0px;\"><a href=\"https:\/\/twitter.com\/share\" class=\"twitter-share-button\" \r\n\t\t\t\t        data-url=\"https:\/\/pensalla.cat\/?p=59\" \r\n\t\t\t\t        data-via=\"jjofra\"\r\n\t\t\t\t\t    data-text=\"Com podr\u00edem evitar el col\u00b7lapse a la xarxa i comunicar-nos durant la V?\"\r\n\t\t\t\t\t    data-related=\"\"\r\n\t\t\t\t\t    data-count=\"none\"\r\n\t\t\t\t\t    data-hashtags=\"\"\r\n\t\t\t\t\t    data-lang=\"autoLANGauto\"\r\n\t\t\t\t\t    data-counturl=\"pensalla.cat\"\r\n\t\t\t\t\t    data-size=\"medium\"\r\n\t\t\t\t\t    data-dnt=\"false\"\t> Tweet <\/a> <\/div>\r\n\t\t                <script>\r\n\t\t\t\t\t    !function(d,s,id) {\r\n\t\t\t\t\t      var js,fjs=d.getElementsByTagName(s)[0];\r\n\t\t\t\t\t      if(!d.getElementById(id)) {\r\n\t\t\t\t\t       js=d.createElement(s);js.id=id;js.src=\"https:\/\/platform.twitter.com\/widgets.js\";fjs.parentNode.insertBefore(js,fjs);\r\n\t\t\t\t\t      }\r\n\t\t\t\t\t    }\r\n\t\t\t\t\t   (document,\"script\",\"twitter-wjs\");\r\n\t\t\t\t\t    <\/script>","protected":false},"excerpt":{"rendered":"<p>Tweet En primer lloc, que quedi clar, hi haur\u00e0 col\u00b7lapse, per\u00f2 podem intentar minimitzar-lo. No ser\u00e0 igual a tot arreu, tampoc: els qui siguin a la part m\u00e9s central de la Diagonal, la zona de negocis, tindran una millor cobertura<span class=\"ellipsis\">&hellip;<\/span><\/p>\n<div class=\"read-more\"><a href=\"https:\/\/pensalla.cat\/?p=59\">Read more <span class=\"screen-reader-text\">Com podr\u00edem evitar el col\u00b7lapse a la xarxa i comunicar-nos durant la V?<\/span><span class=\"meta-nav\"> &#8250;<\/span><\/a><\/div>\n<p><!-- end of .read-more --><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_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},"jetpack_post_was_ever_published":false},"categories":[2],"tags":[],"class_list":["post-59","post","type-post","status-publish","format-standard","hentry","category-articles"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.8 - aioseo.com -->\n\t<meta name=\"description\" content=\"En primer lloc, que quedi clar, hi haur\u00e0 col\u00b7lapse, per\u00f2 podem intentar minimitzar-lo. No ser\u00e0 igual a tot arreu, tampoc: els qui siguin a la part m\u00e9s central de la Diagonal, la zona de negocis, tindran una millor cobertura perqu\u00e8 les operadores hi tenen m\u00e9s repetidors per donar servei a les empreses. 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