{"id":33660,"date":"2019-10-31T21:53:59","date_gmt":"2019-10-31T18:53:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/campusinsight-ot-monitoringa-infrastruktury-k-analizu-polzovatelskogo-opyta\/"},"modified":"2019-10-31T21:53:59","modified_gmt":"2019-10-31T18:53:59","slug":"campusinsight-ot-monitoringa-infrastruktury-k-analizu-polzovatelskogo-opyta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/administrirovanie\/campusinsight-ot-monitoringa-infrastruktury-k-analizu-polzovatelskogo-opyta","title":{"rendered":"CampusInsight: de la monitorizarea infrastructurii la analiza experien\u021bei utilizatorului","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Calitatea re\u021belei wireless este, \u00een mod implicit, inclus\u0103 \u00een conceptul de nivel de serviciu. Iar dac\u0103 se dore\u0219te satisfacerea cerin\u021belor ridicate ale clien\u021bilor, este necesar nu doar s\u0103 se intervin\u0103 rapid \u00een rezolvarea problemelor de re\u021bea ap\u0103rute, ci \u0219i s\u0103 se prevad\u0103 cele mai \u00eent\u00e2lnite dintre acestea.<\/p>\n<p>Cum se poate face acest lucru? Doar urm\u0103rind ceea ce este cu adev\u0103rat important \u00een acest context \u2014 interac\u021biunea utilizatorului cu re\u021beaua wireless.<\/p>\n<p><img decoding=\"async\" alt=\"CampusInsight: de la monitorizarea infrastructurii la analiza experien\u021bei utilizatorului\" src=\"\/wp-content\/uploads\/2019\/05\/de74e4bb1c0b8394428124df2cfcee10.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n\u00cenc\u0103rc\u0103rile pe re\u021bele continu\u0103 s\u0103 creasc\u0103, iar acest lucru afecteaz\u0103 \u00een special segmentele wireless \u2014 m\u0103car din cauza deschiderii interfe\u021bei lor. Pe m\u0103sur\u0103 ce num\u0103rul de dispozitive \u0219i vitezele de transfer de date cresc, problemele se multiplic\u0103 pe mai multe niveluri. La nivel fizic \u2014 numeroasele emi\u021b\u0103toare de semnal radio se influen\u021beaz\u0103 reciproc, chiar dac\u0103 func\u021bioneaz\u0103 pe por\u021biuni de spectru de frecven\u021b\u0103 adiacente. La nivel logic \u2014 un num\u0103r mare de dispozitive conectate \u00eencep s\u0103 concureze pentru dreptul de a \u00eencepe transmisia pe frecven\u021ba selectat\u0103, ceea ce cre\u0219te \u00eent\u00e2rzierea livr\u0103rii pachetelor pentru fiecare utilizator.\u00a0<\/p>\n<p>Simultan cu aceasta, cresc \u0219i a\u0219tept\u0103rile fiec\u0103rui client de la utilizarea re\u021belei. O \u00eenc\u0103rcare de 5 secunde a unei pagini \u00een browser, care acum 20 de ani p\u0103rea \u201ev\u00e2rful tehnologiei\u201d, nu mai surprinde pe nimeni. Clien\u021bii cer videoconferin\u021be HD f\u0103r\u0103 deranjamente \u00een imagine.<\/p>\n<p>Par\u021bial, problema poate fi rezolvat\u0103 prin noile versiuni ale standardelor de transmisie wireless, care utilizeaz\u0103 mai eficient spectrul de frecven\u021b\u0103. Fiecare <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/article\/449116\/\">versiune ulterioar\u0103 a Wi-Fi<\/a><\/noindex> este direc\u021bionat\u0103 spre desf\u0103\u0219urarea unor re\u021bele din ce \u00een ce mai solicitate. \u00cens\u0103, \u00eentr-o re\u021bea extins\u0103, unde func\u021bioneaz\u0103 nu doar c\u00e2teva zeci de puncte de acces, nu va mai fi posibil s\u0103 l\u0103s\u0103m totul la voia unei noi standardiz\u0103ri (cu at\u00e2t mai mult cu c\u00e2t dispozitivele func\u021bioneaz\u0103 \u00een regim de compatibilitate invers\u0103, de \u00eendat\u0103 ce \u00eent\u00e2lnesc un dispozitiv utilizator vechi). La fel, nu va mai fi posibil s\u0103 continu\u0103m s\u0103 tr\u0103im cu vechile instrumente de monitorizare \u2014 mediu re\u021bea devine constant mai complex.<\/p>\n<h2>De ce monitorizarea obi\u0219nuit\u0103 nu mai func\u021bioneaz\u0103<\/h2>\n<p>\nCli\u0219eul clasic, care \u00eei b\u00e2ntuie \u00een continuare pe administratorii tuturor re\u021belelor, inclusiv pe cele wireless, este lucrul exclusiv pe baza solicit\u0103rilor. A func\u021bionat \u201ealarm-ul\u201d \u2014 ne trezim \u0219i ne ocup\u0103m de ceea ce a mers prost. P\u00e2n\u0103 nu exist\u0103 \u201ealarm\u201d, putem s\u0103 ne limit\u0103m la verificarea \u00eenc\u0103rc\u0103rii pe componentele principale \u2013 dispozitivele de re\u021bea \u0219i cele ale utilizatorilor.\u00a0<\/p>\n<p>\u00cen conformitate cu aceast\u0103 sarcin\u0103, instrumentele tradi\u021bionale de monitorizare \u0219i \u00eentre\u021binere func\u021bioneaz\u0103 pe baza unor reguli stricte \u0219i nu afi\u0219eaz\u0103 \u00eentotdeauna rapid problemele existente, cu at\u00e2t mai pu\u021bin o analiz\u0103 predictiv\u0103.\u00a0<\/p>\n<p>Principala problem\u0103 const\u0103 \u00een intervalul de colectare a datelor. Informa\u021biile despre starea conexiunilor wireless sunt colectate din minute \u00een minute, iar incidentele pot ap\u0103rea foarte bine \u00een intervalele dintre colectarea datelor (un exemplu clar sunt v\u00e2rfurile rare de \u00eenc\u0103rcare care \"suspend\u0103\" re\u021beaua). F\u0103r\u0103 a ob\u021bine date \u00een timp real, este destul de greu s\u0103 \u00een\u021belegem care a fost cauza profund\u0103 a problemei. Este o gestionare gre\u0219it\u0103 a acoperirii re\u021belei? Sau, poate, interferen\u021be externe complet nesus\u021binute de afaceri (de exemplu, o unitate militar\u0103 din apropiere a deranjat frecven\u021ba). Nu exist\u0103 date pentru a observa degradarea treptat\u0103 a anumitor caracteristici ale re\u021belei, ceea ce face \u0219i mai greu localizarea problemei. Personalul IT va trebui s\u0103 petreac\u0103 ore \u00een plus c\u0103ut\u00e2nd o \"ac de f\u00e2n\".<br \/>\n\u00cens\u0103 utilizatorii finali observ\u0103 problema aproape imediat. Eroarea de conectare, \u00eentreruperea transmisiei video - sunt indicii excelente.<\/p>\n<blockquote><p>Instrumentele clasice de monitorizare raporteaz\u0103 c\u0103 pachetele de re\u021bea circul\u0103. Dar ele nu pot r\u0103spunde la \u00eentrebarea dac\u0103 utilizatorul \u0219i-a rezolvat problema.\n<\/p><\/blockquote>\n<p>\nPentru a ob\u021bine un r\u0103spuns la aceast\u0103 \u00eentrebare, va trebui s\u0103 schimb\u0103m nu doar instrumentul, ci \u00eentregul mod de organizare a monitoriz\u0103rii. De la o munc\u0103 \"de urgen\u021b\u0103\" bazat\u0103 pe solicit\u0103ri (practic, controlul performan\u021bei \u0219i \u00eenc\u0103rc\u0103rii anumitor echipamente) la monitorizarea experien\u021bei utilizatorului \u0219i identificarea situa\u021biilor care ar putea duce la incidente.<\/p>\n<p>Aceast\u0103 transformare implic\u0103 implementarea unor algoritmi mai complec\u0219i pentru identificarea problemelor dec\u00e2t simplele alerte \u00een func\u021bie de atingerea unor valori specifice. \u00cen platforma de analiz\u0103 inteligent\u0103 a re\u021belei Huawei CampusInsight, ace\u0219ti algoritmi se bazeaz\u0103 pe experien\u021ba de \u00eentre\u021binere a re\u021belelor wireless \u0219i tehnici de auto\u00eenv\u0103\u021bare.<\/p>\n<h2>Sub capot\u0103, CampusInsight<\/h2>\n<p>\nHuawei CampusInsight \u2013 o platform\u0103 scalabil\u0103 pentru monitorizarea re\u021belelor wireless de diferite dimensiuni. Bazat\u0103 pe o arhitectur\u0103 de microservicii, fiecare serviciu este desf\u0103\u0219urat pe mai multe instan\u021be, mesajele \u00eentre care sunt distribuite de o bus corespunz\u0103toare. Instan\u021bele suplimentare pot fi desf\u0103\u0219urate dinamic, cresc\u00e2nd capacitatea de procesare a instrumentului.<\/p>\n<p>Practic, CampusInsight colecteaz\u0103, analizeaz\u0103 \u0219i afi\u0219eaz\u0103 date \u00een interfa\u021ba sa utilizator dup\u0103 cinci pa\u0219i.<\/p>\n<p><img decoding=\"async\" alt=\"CampusInsight: de la monitorizarea infrastructurii la analiza experien\u021bei utilizatorului\" src=\"\/wp-content\/uploads\/2019\/05\/2d2856e469a0afcb391a249768aba13c.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b>Primul \u0219i al doilea pas<\/b> \u2014 este accesul la date (la dispozitivele care le genereaz\u0103) \u0219i colectarea \u201ecitirilor\u201d. Utiliz\u00e2nd colectarea de telemetrie \u00een flux prin protocolul GPB de la Google \u0219i Syslog \u201etradi\u021bional\u201d (acolo unde este posibil), Huawei CampusInsight acumuleaz\u0103 practic datele \u00een timp real:<\/p>\n<ul>\n<li>despre utilizarea spectrului de frecven\u021be;\n<\/li>\n<li>despre func\u021bionarea punctelor de acces \u0219i a altor dispozitive de re\u021bea (indicatori de performan\u021b\u0103, num\u0103rul de utilizatori conecta\u021bi etc.);\n<\/li>\n<li>despre traseul utilizatorilor specifici \u2013 despre profilele de re\u021bea, cine, c\u00e2nd \u0219i la ce punct de acces s-a conectat sau nu (\u0219i cu ce parametre de conectare);\n<\/li>\n<li>despre func\u021bionarea aplica\u021biilor audio-video (utiliz\u00e2nd eMDI, implementat\u0103 \u00eentr-unul dintre pachetele suplimentare).\n<\/li>\n<\/ul>\n<p>\nPentru a dep\u0103\u0219i limit\u0103rile instrumentelor tradi\u021bionale care folosesc SNMP pentru colectarea datelor \u0219i transmiterea structurilor fixe, CampusInsight a fost construit pe un model de abonare la jurnalele necesare \u0219i algoritmi de codificare \u0219i decodificare a datelor.<\/p>\n<p><b>Al treilea pas <\/b> \u2014 distribu\u021bia \u0219i bufferizarea \u2013 adic\u0103 trimiterea datelor \u201ebrute\u201d \u00een Kafka pentru a fi distribuite c\u0103tre servicii de analiz\u0103 la un nivel mai \u00eenalt.<\/p>\n<p><b>Al patrulea pas<\/b> \u2014 analiza. Algoritmii Big Data \u0219i AI ajut\u0103 la procesarea rapid\u0103 a datelor \u201ebrute\u201d. Ca rezultat, sunt identificate problemele specifice legate de:<\/p>\n<ul>\n<li>autentificare (se sus\u021bine protocolul Dot1x) \u0219i func\u021bionarea DHCP;\n<\/li>\n<li>stabilitatea \u0219i viteza conexiunii;\n<\/li>\n<li>interfe\u021bele wireless;\n<\/li>\n<li>func\u021bionarea dispozitivelor individuale, inclusiv \u201edetaliile\u201d, cum ar fi problemele cu PoE sau trecerea unui dispozitiv dual-band pe 2,4 GHz;\n<\/li>\n<li>calitatea fluxurilor audio-video \u2013 de fapt, func\u021bia este sus\u021binut\u0103 doar pentru SIP necriptat sau pentru anumite comutatoare;\n<\/li>\n<li>roamingul \u00eentre diferite puncte de acces.\n<\/li>\n<\/ul>\n<p>\nAlgoritmii AI sunt utiliza\u021bi pentru a rezolva anumite probleme specifice, cum ar fi identificarea interferen\u021bei \u00eentre canale \u00een transmisia wireless.<\/p>\n<p><img decoding=\"async\" alt=\"CampusInsight: de la monitorizarea infrastructurii la analiza experien\u021bei utilizatorului\" src=\"\/wp-content\/uploads\/2019\/05\/d8dad206cb0f11870202a18f1d5ee070.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<b>Cel de-al cincilea \u0219i ultim pas<\/b> \u2014 salvarea datelor \u00eentr-o baz\u0103 de date distribuit\u0103 pe coloane Druid pentru utilizare ulterioar\u0103.<\/p>\n<p>Analiza informa\u021biilor colectate, av\u00e2nd \u00een vedere baza de referin\u021b\u0103 construit\u0103 pe datele istorice, permite identificarea tiparelor tipice de e\u0219ec \u2014 stabilind KPI-uri corespunz\u0103toare situa\u021biilor problematice \u0219i localiz\u00e2nd problemele, oferind solu\u021bii. Astfel, instrumentul ia \u00een considerare aproximativ 85% din toate problemele de re\u021bea.\u00a0<\/p>\n<p><img decoding=\"async\" alt=\"CampusInsight: de la monitorizarea infrastructurii la analiza experien\u021bei utilizatorului\" src=\"\/wp-content\/uploads\/2019\/05\/6018323eae44ae5212374399f27c00e3.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nDatele sunt prezentate administratorului sub form\u0103 grafic\u0103, conform ierarhiei sau topologiei spa\u021biului (de exemplu, planul biroului). Este posibil s\u0103 se construiasc\u0103 \u201ecarte termice\u201d, s\u0103 se analizeze c\u00e2t de afectate sunt echipamentele de anumite platforme sau produc\u0103tori etc. Astfel, este mai u\u0219or s\u0103 \u00een\u021belegem ce anume a provocat problema.<\/p>\n<p><img decoding=\"async\" alt=\"CampusInsight: de la monitorizarea infrastructurii la analiza experien\u021bei utilizatorului\" src=\"\/wp-content\/uploads\/2019\/05\/a05d9c2d1b238984616beddc5a80edf7.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n\u00cen general, CampusInsight ofer\u0103 o mul\u021bime de instrumente care permit clasificarea problemelor, compararea utilizatorilor afecta\u021bi, studierea datelor de func\u021bionare ale unui client specific \u0219i chiar \u201ereproducerea\u201d evenimentelor anterioare incidentului pentru a identifica rapid sursa. De asemenea, produsul suport\u0103 noul Wi-Fi 6, f\u0103r\u0103 a men\u021biona versiunile anterioare.<\/p>\n<h2>Cazuri<\/h2>\n<p>\nCampusInsight a fost testat \u00een practic\u0103, de\u0219i cea mai mare parte a cazurilor este acoperit\u0103 de acorduri de confiden\u021bialitate (NDA). Cel mai reprezentativ caz deschis este aplicarea instrumentului de monitorizare \u00een propria re\u021bea wireless Huawei.<\/p>\n<p>Re\u021beaua acoper\u0103 \u00eentreprinderi cu aproximativ 180.000 de oameni, dintre care 80.000 fac parte din departamentul R&amp;D (birouri \u00een mai mult de 170 de \u021b\u0103ri, cu un total de 62.000 de puncte de acces instalate).<\/p>\n<p>Implementarea CampusInsight a ajutat la optimizarea a peste 630 de puncte de acces, sporind \u00een acela\u0219i timp eficien\u021ba analiz\u0103rii incidentelor cu 30%.<br \/>\nMai jos se afl\u0103 c\u00e2teva situa\u021bii specifice.<\/p>\n<h3>Exemplul 1. Defec\u021biune de grup<\/h3>\n<p>\nProblemele de \u00eenalt nivel observate la un num\u0103r mare de utilizatori sunt adesea rezultatul unor erori de nivel inferior. \u0218i astfel de probleme nu sunt u\u0219or de identificat. De exemplu, \u00eentr-unul dintre birouri, mai mul\u021bi clien\u021bi mobili au \u00eent\u00e2mpinat dificult\u0103\u021bi la autentificare, \u00een ciuda corectitudinii set\u0103rilor \u0219i a absen\u021bei problemelor. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/dts-prohoster\/\"   title=\"serverul\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2966\">serverul<\/a> autentific\u0103rii. Vizualizarea datelor la diferite niveluri a ajutat la identificarea rapid\u0103 a sursei problemei, care era un switch ce genera prea multe erori. Pentru a corecta situa\u021bia, a fost suficient s\u0103 \u00eenlocuim o bucat\u0103 de cablu. Localizarea \u0219i rezolvarea problemei au durat 90 de minute.<\/p>\n<h3>Exemplul 2. Monitorizarea calit\u0103\u021bii roamingului<\/h3>\n<p>\nColectarea datelor despre parcursul unui client specific \u00een cadrul unei re\u021bele distribuite permite identificarea problemelor de roaming care nu sunt evidente. Un caz frecvent este atunci c\u00e2nd utilizatorii mobili \u00eent\u00e2mpin\u0103 probleme de conectare \u00een anumite zone ale cl\u0103dirii (de\u0219i, aparent, punctul de acces corespunz\u0103tor func\u021bioneaz\u0103 bine). O surs\u0103 posibil\u0103 a acestor probleme poate fi puterea prea mare a punctului de acces din camera al\u0103turat\u0103 \u2013 astfel c\u0103, \u00een loc s\u0103 se conecteze la cel mai apropiat punct, clientul \u00eencearc\u0103 s\u0103 se conecteze la cel care \u00een acel moment deja deserve\u0219te un num\u0103r mare de utilizatori (caz real: conectarea la un punct de acces din sala de conferin\u021be c\u00e2nd utilizatorul trece pe l\u00e2ng\u0103).<\/p>\n<blockquote><p>Pentru a rezolva problema, uneori este suficient s\u0103 se reduc\u0103 puterea semnalului punctului \u00eenc\u0103rcat, \u00eens\u0103 identificarea necesit\u0103 o analiz\u0103 profund\u0103 a problemelor repetate \u00een camerele adiacente s\u0103lii de conferin\u021be.<\/p><\/blockquote>\n<p>\nUrm\u0103rind tendin\u021bele de dezvoltare a re\u021belelor wireless, ne putem a\u0219tepta ca problemele de servicii s\u0103 afecteze \u00een viitorul apropiat nu doar gigantii cu re\u021bele ce con\u021bin mii de puncte de acces, ci \u0219i companiile medii, care deocamdat\u0103 s-ar putea limita la gestionarea incidentelor. Av\u00e2nd \u00een vedere o astfel de evolu\u021bie, este logic s\u0103 ne orient\u0103m spre noi standarde mai eficiente \u0219i echipamente de \u00eenalt\u0103 performan\u021b\u0103. Dar trebuie s\u0103 ne amintim \u0219i de necesitatea schimb\u0103rii paradigmei de servicii de re\u021bea, \u00eenainte ca clien\u021bii s\u0103 \u00eenceap\u0103 o migra\u021bie masiv\u0103 c\u0103tre concuren\u021bi din cauza calit\u0103\u021bii serviciului.<\/p>\n<p>Desigur, produsul onsite din clasa CampusInsight va aduce cele mai mari beneficii \u00een implement\u0103rile pe scar\u0103 larg\u0103, dar acum este disponibil\u0103 \u0219i un abonament cloud pentru serviciul din Public Cloud Huawei, destinat implement\u0103rilor \u00een sectorul SMB. \u00cen general, cei interesa\u021bi pot \u00eencerca \u0219i \"\u00eentoarce\" deja acum.<br \/>\n<br \/>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/huawei\/blog\/451618\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u0430\u0447\u0435\u0441\u0442\u0432\u043e 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\u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430\u043c\u0438, \u043d\u043e \u0438 \u043f\u0440\u0435\u0434\u0441\u043a\u0430\u0437\u044b\u0432\u0430\u0442\u044c \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043c\u0430\u0441\u0441\u043e\u0432\u044b\u0435 \u0438\u0437 \u043d\u0438\u0445. \u041a\u0430\u043a \u044d\u0442\u043e \u0441\u0434\u0435\u043b\u0430\u0442\u044c? \u0422\u043e\u043b\u044c\u043a\u043e \u043e\u0442\u0441\u043b\u0435\u0434\u0438\u0432 \u0442\u043e, \u0447\u0442\u043e \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0442\u0435\u043b\u044c\u043d\u043e \u0432\u0430\u0436\u043d\u043e \u0432 \u0434\u0430\u043d\u043d\u043e\u043c \u043a\u043e\u043d\u0442\u0435\u043a\u0441\u0442\u0435 \u2014 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f \u0441 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0441\u0435\u0442\u044c\u044e. \u041d\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u043d\u0430 \u0441\u0435\u0442\u0438 \u043f\u0440\u043e\u0434\u043e\u043b\u0436\u0430\u044e\u0442 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":25349,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-33660","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u0430\u0447\u0435\u0441\u0442\u0432\u043e \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 \u0443\u0436\u0435 \u043f\u043e-\u0443\u043c\u043e\u043b\u0447\u0430\u043d\u0438\u044e \u0432\u043a\u043b\u044e\u0447\u0430\u0435\u0442\u0441\u044f \u0432 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