{"id":34006,"date":"2019-10-31T21:55:54","date_gmt":"2019-10-31T18:55:54","guid":{"rendered":"https:\/\/prohoster.info\/blog\/printsip-raboty-protokola-vrrp\/"},"modified":"2019-10-31T21:55:54","modified_gmt":"2019-10-31T18:55:54","slug":"printsip-raboty-protokola-vrrp","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/printsip-raboty-protokola-vrrp","title":{"rendered":"Principi i pun\u00ebs s\u00eb protokollit VRRP","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><b>FHRP (Protokolli i Par\u00eb i Redundanc\u00ebs s\u00eb Hyrjes)<\/b> \u2014 nj\u00eb grup protokolesh q\u00eb jan\u00eb krijuar p\u00ebr t\u00eb siguruar redundanc\u00ebn e portit t\u00eb paracaktuar. Ideja e p\u00ebrgjithshme e k\u00ebtyre protokolleve \u00ebsht\u00eb t\u00eb bashkojn\u00eb disa router-a n\u00eb nj\u00eb router virtual me nj\u00eb IP adres\u00eb t\u00eb p\u00ebrbashk\u00ebt. Kjo IP adres\u00eb do t'i caktohet hosteve si adresa e paracaktuar e portit. Nj\u00eb realizim i lir\u00eb i k\u00ebsaj ideje \u00ebsht\u00eb protokolli VRRP (Protokolli i Redundanc\u00ebs s\u00eb Router-it Virtual). N\u00eb k\u00ebt\u00eb artikull do t\u00eb shqyrtojm\u00eb bazat e protokollit VRRP.<\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/d9af3141a4b0573e206409ac6dbbd60f.jpg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nRouter-at VRRP bashkohen n\u00eb nj\u00eb router virtual. T\u00eb gjith\u00eb router-at n\u00eb grup kan\u00eb nj\u00eb adres\u00eb virtuale IP (VIP) t\u00eb p\u00ebrbashk\u00ebt dhe nj\u00eb num\u00ebr grupi t\u00eb p\u00ebrbashk\u00ebt ose VRID (Identifikuesi i Router-it Virtual). Nj\u00eb router mund t\u00eb jet\u00eb pjes\u00eb e disa grupeve, \u00e7do nj\u00ebra prej t\u00eb cilave duhet t\u00eb ket\u00eb \u00e7iftin unik VIP\/VRID.<\/p>\n<p>N\u00eb rastin e Cisco-s, router-i virtual caktohet n\u00eb nd\u00ebrfaqen q\u00eb na intereson me komand\u00ebn:<\/p>\n<pre><code class=\"plaintext\">R1(config-if)# vrrp  ip<\/code><\/pre>\n<p>\nT\u00eb gjith\u00eb router-at ndahen n\u00eb dy lloje: VRRP Master dhe VRRP Backup. <\/p>\n<p><b>VRRP Master<\/b> \u2014 \u00ebsht\u00eb router-i q\u00eb merret me transferimin e paketave p\u00ebr k\u00ebt\u00eb grup virtual. <\/p>\n<p><b>VRRP Backup<\/b> \u2014 \u00ebsht\u00eb nj\u00eb router q\u00eb pret paketat nga Master. N\u00ebse paketat nga Master ndalojn\u00eb s\u00eb ardhuri, Backup p\u00ebrpiqet t\u00eb kaloj\u00eb n\u00eb gjendjen Master. <\/p>\n<p>Routeri b\u00ebhet Master n\u00ebse ka prioritetin m\u00eb t\u00eb lart\u00eb. Master vazhdimisht d\u00ebrgon mesazhe n\u00eb adres\u00ebn e transmetimit 224.0.0.18 p\u00ebr t'i njoftuar router\u00ebt Backup q\u00eb \u00ebsht\u00eb aktiv. Master d\u00ebrgon mesazhe sipas nj\u00eb timeri Adver Timer, i cili \u00ebsht\u00eb 1 sekond\u00eb si\u00e7 \u00ebsht\u00eb caktuar fillimisht. <\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/c7a60362445dd9d89fec7bdbd2ff513d.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nN\u00eb k\u00ebt\u00eb rast, si adres\u00eb MAC e d\u00ebrguesit p\u00ebrdoret adresa e grupit 00:00:5E:00:01:xx, ku xx \u00ebsht\u00eb VRID n\u00eb formatin hexadecimal. N\u00eb k\u00ebt\u00eb shembull p\u00ebrdoret grupi i par\u00eb. <\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/5d16bcf86a6ce3c8ebe8c610dfe17156.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nN\u00ebse router\u00ebt Backup nuk marrin mesazhe gjat\u00eb tre Adver Timer (Master Down Timer), at\u00ebher\u00eb Master i ri b\u00ebhet routeri me prioritetin m\u00eb t\u00eb lart\u00eb, ose routeri me IP m\u00eb t\u00eb lart\u00eb. N\u00eb t\u00eb nj\u00ebjt\u00ebn koh\u00eb, routeri Backup me prioritet m\u00eb t\u00eb lart\u00eb do t\u00eb marr\u00eb rol Master nga ai me prioritet m\u00eb t\u00eb ul\u00ebt. Megjithat\u00eb, kur Backup-i nuk ka aktivizuar modalitetin preempt, ai nuk do t\u00eb marr\u00eb rolin nga Master. <\/p>\n<pre><code class=\"plaintext\">R1(config-if)# no vrrp  preempt<\/code><\/pre>\n<p>\nN\u00ebse routeri VRRP \u00ebsht\u00eb pronar i VIP adres\u00ebs, ai gjithmon\u00eb merr rolin Master. <\/p>\n<p>Prioriteti VRRP caktohet n\u00eb vlera nga 1 deri n\u00eb 254. Vlera 0 \u00ebsht\u00eb e rezervuar p\u00ebr rastet kur Master duhet <i>t\u00eb heq\u00eb<\/i> p\u00ebrgjegj\u00ebsin\u00eb p\u00ebr rrug\u00ebzim. Vlera 255 i caktohet ruterit pronar t\u00eb VIP. Prioriteti i paracaktuar \u00ebsht\u00eb 100, por mund t\u00eb caktohet administrativisht:<\/p>\n<pre><code class=\"plaintext\">R1(config-if)#vrrp  priority<\/code><\/pre>\n<p>\nK\u00ebtu mund t\u00eb shohim prioritetin e ruterit, kur ai caktohet administrativisht:<\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/1b7d6de438b7d44ee9ae1d4a9e4fb8ca.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nDhe k\u00ebtu paraqitet rasti kur ruteri \u00ebsht\u00eb pronar i VIP:<\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/c593d3fa9dde81fb694b3e3cb0358444.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nRuteri VRRP mund t\u00eb ket\u00eb tri gjendje: Initialize, Backup, Master. K\u00ebto gjendje ruterit i ndryshojn\u00eb radhazi. <\/p>\n<p>N\u00eb gjendjen Initialize, ruteri pret fillimin e funksionimit. N\u00ebse ky ruter \u00ebsht\u00eb pronar i adres\u00ebs VIP (prioriteti \u00ebsht\u00eb 255), at\u00ebher\u00eb ruteri d\u00ebrgon mesazhe se b\u00ebhet Master. Ai gjithashtu d\u00ebrgon <noindex><a rel=\"nofollow\" href=\"https:\/\/en.wikipedia.org\/wiki\/Address_Resolution_Protocol\">k\u00ebrkes\u00eb ARP t\u00eb pad\u00ebshiruar<\/a><\/noindex>, n\u00eb t\u00eb cil\u00ebn adresa MAC e burimit \u00ebsht\u00eb e barabart\u00eb me adres\u00ebn e ruterit virtual. Pastaj ai kalon n\u00eb gjendjen Master. N\u00ebse ruteri nuk \u00ebsht\u00eb pronar i VIP, ai kalon n\u00eb gjendjen Backup. <\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/faa6941e52a9edcef72022b75333fc03.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nN\u00eb gjendjen Backup, ruteri pret paketa nga Master. Ruter n\u00eb k\u00ebt\u00eb gjendje nuk p\u00ebrgjigjet n\u00eb k\u00ebrkesat ARP nga adresa VIP. Po ashtu, ai nuk pranon paketa q\u00eb kan\u00eb si adres\u00eb t\u00eb destinacionit adres\u00ebn MAC t\u00eb routerit virtual. <\/p>\n<p>N\u00ebse Backup nuk merr mesazhe nga Master brenda Timer-it t\u00eb R\u00ebnies Master, ai d\u00ebrgon nj\u00eb mesazh VRRP p\u00ebr t\u00eb njoftuar se do t\u00eb b\u00ebhet Master. M\u00eb pas, d\u00ebrgon nj\u00eb mesazh t\u00eb p\u00ebrgjithsh\u00ebm VRRP, ku adresa MAC e burimit i p\u00ebrket k\u00ebtij routeri virtual. N\u00eb k\u00ebt\u00eb mesazh, ruteri njofton prioritetin e tij.<\/p>\n<p>N\u00eb gjendjen Master, ruteri proceson paketat q\u00eb jan\u00eb drejtuar routerit virtual. Ai gjithashtu p\u00ebrgjigjet n\u00eb k\u00ebrkesat ARP p\u00ebr VIP. Master shp\u00ebrndan mesazhe VRRP \u00e7do Adver Timer p\u00ebr t\u00eb konfirmuar q\u00eb po punon. <\/p>\n<pre><code class=\"plaintext\">*May 13 19:52:18.531: %VRRP-6-STATECHANGE: Et1\/0 Grp 1 gjendja Init -&gt; Backup\n*May 13 19:52:21.751: %VRRP-6-STATECHANGE: Et1\/0 Grp 1 gjendja Backup -&gt; Master<\/code><\/pre>\n<p>\nVRRP gjithashtu lejon balancimin e ngarkes\u00ebs midis disa rrug\u00ebtuesve. P\u00ebr k\u00ebt\u00eb, krijohen dy grupe VRRP n\u00eb nj\u00eb nd\u00ebrfaqe. Nj\u00eb grup merr nj\u00eb p\u00ebrpar\u00ebsi m\u00eb t\u00eb lart\u00eb se tjetri. N\u00eb k\u00ebt\u00eb rast, n\u00eb rrug\u00ebtuesin e dyt\u00eb, p\u00ebrpar\u00ebsia caktohet n\u00eb m\u00ebnyr\u00eb t\u00eb kund\u00ebrt. Pra, n\u00ebse n\u00eb nj\u00eb rrug\u00ebtues, p\u00ebrpar\u00ebsia e grupit t\u00eb par\u00eb \u00ebsht\u00eb 100, nd\u00ebrsa e grupit t\u00eb dyt\u00eb \u00ebsht\u00eb 200, at\u00ebher\u00eb n\u00eb rrug\u00ebtuesin tjet\u00ebr, p\u00ebrpar\u00ebsia e grupit t\u00eb par\u00eb do t\u00eb jet\u00eb 200, dhe e dytit 100. <\/p>\n<p>Si\u00e7 u tha m\u00eb par\u00eb, \u00e7do grup duhet t\u00eb ket\u00eb VIP t\u00eb tij unik. N\u00eb p\u00ebrfundim, ne marrim dy adresa IP, t\u00eb sh\u00ebrbyera nga dy rrug\u00ebtues, secili prej t\u00eb cil\u00ebve mund t\u00eb sh\u00ebrbej\u00eb si porti i paracaktuar. <\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/2f2246fd8e673a6fd64d4c74b0a79ce2.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nPjes\u00ebs s\u00eb kompjuter\u00ebve u caktohet nj\u00eb adres\u00eb porti e paracaktuar, pjes\u00ebs tjet\u00ebr nj\u00eb tjet\u00ebr. K\u00ebshtu, gjysma e trafikut do t\u00eb kaloj\u00eb p\u00ebrmes nj\u00eb rrug\u00ebtuesi, nd\u00ebrsa gjysma p\u00ebrmes tjetrit. N\u00eb rast se nj\u00eb nga rrug\u00ebtuesit d\u00ebshton, tjetri merr p\u00ebrsip\u00ebr pun\u00ebn e t\u00eb dy VIP-ve.<\/p>\n<p><img decoding=\"async\" alt=\"Principi i pun\u00ebs s\u00eb protokollit VRRP\" src=\"\/wp-content\/uploads\/2019\/05\/31501226c0cb7a668ced43e38791f1c3.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nK\u00ebshtu, VRRP mund\u00ebson organizimin e q\u00ebndrueshm\u00ebris\u00eb s\u00eb port\u00ebs p\u00ebrkat\u00ebse, duke rritur besueshm\u00ebrin\u00eb e rrjetit. N\u00eb rastin e p\u00ebrdorimit t\u00eb disa rrug\u00ebve virtuale, \u00ebsht\u00eb e mundur t\u00eb balancojm\u00eb ngarkes\u00ebn midis rrug\u00ebve reale. Shpejt\u00ebsia e reagimit ndaj d\u00ebshtimit mund t\u00eb zvog\u00eblohet duke ulur timer\u00ebt.<br \/>\n<br \/>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/452490\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>FHRP (First Hop Redundancy Protocol) \u2014 \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0438\u0437\u0431\u044b\u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0448\u043b\u044e\u0437\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u041e\u0431\u0449\u0435\u0439 \u0438\u0434\u0435\u0435\u0439 \u0434\u043b\u044f \u0434\u0430\u043d\u043d\u044b\u0445 \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0435 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u0438\u0445 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u043e\u0432 \u0432 \u043e\u0434\u0438\u043d \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u044b\u0439 \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440 \u0441 \u043e\u0431\u0449\u0438\u043c IP \u0430\u0434\u0440\u0435\u0441\u043e\u043c. \u042d\u0442\u043e\u0442 IP \u0430\u0434\u0440\u0435\u0441 \u0431\u0443\u0434\u0435\u0442 \u043d\u0430\u0437\u043d\u0430\u0447\u0430\u0442\u044c\u0441\u044f \u043d\u0430 \u0445\u043e\u0441\u0442\u0430\u0445 \u043a\u0430\u043a \u0430\u0434\u0440\u0435\u0441 \u0448\u043b\u044e\u0437\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u0421\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0434\u0430\u043d\u043d\u043e\u0439 \u0438\u0434\u0435\u0438 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b VRRP (Virtual Router Redundancy Protocol). [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25663,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-34006","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"FHRP (First Hop Redundancy Protocol) \u2014 \u0441\u0435\u043c\u0435\u0439\u0441\u0442\u0432\u043e \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b\u043e\u0432, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0445 \u0434\u043b\u044f \u0441\u043e\u0437\u0434\u0430\u043d\u0438\u044f \u0438\u0437\u0431\u044b\u0442\u043e\u0447\u043d\u043e\u0441\u0442\u0438 \u0448\u043b\u044e\u0437\u0430 \u043f\u043e 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\u0430\u0434\u0440\u0435\u0441 \u0448\u043b\u044e\u0437\u0430 \u043f\u043e \u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e. \u0421\u0432\u043e\u0431\u043e\u0434\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0435\u0439 \u0434\u0430\u043d\u043d\u043e\u0439 \u0438\u0434\u0435\u0438 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0442\u043e\u043a\u043e\u043b VRRP (Virtual Router Redundancy Protocol).\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/printsip-raboty-protokola-vrrp\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"sq_AL\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 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property=\"article:published_time\" content=\"2019-10-31T18:55:54+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2019-10-31T18:55:54+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Parimi i funksionimit t\u00eb protokollit VRRP | ProHoster","description":"FHRP (Protokolli i Redundanc\u00ebs s\u00eb Hapave t\u00eb Par\u00eb) - nj\u00eb grup protokollesh q\u00eb kan\u00eb p\u00ebr q\u00ebllim krijimin e vetive t\u00eb tep\u00ebrta t\u00eb port\u00ebs p\u00ebrkat\u00ebse. 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