{"id":34383,"date":"2019-10-31T21:58:01","date_gmt":"2019-10-31T18:58:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/sistemy-monitoringa-trafika-v-setyah-voip-chast-vtoraya-printsipy-organizatsii\/"},"modified":"2019-10-31T21:58:01","modified_gmt":"2019-10-31T18:58:01","slug":"sistemy-monitoringa-trafika-v-setyah-voip-chast-vtoraya-printsipy-organizatsii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/sistemy-monitoringa-trafika-v-setyah-voip-chast-vtoraya-printsipy-organizatsii","title":{"rendered":"VoIP-v\u00f5rkude liiklusj\u00e4lgimise s\u00fcsteemid. Teine osa \u2014 korraldamise p\u00f5him\u00f5tted","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Tere, kolleegid!<\/p>\n<p>V <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/434002\/\">eelnevas<\/a><\/noindex> materjalis tutvusime sellise kasuliku ja, nagu v\u00f5ib m\u00e4rkida, \u00fcsna vajaliku elemendiga VoIP-infrastruktuuris nagu liikluse j\u00e4lgimise s\u00fcsteem ehk l\u00fchidalt SMT. Uurisime, mis see on, milliseid \u00fclesandeid see lahendab ning t\u00f5ime esile silmapaistvamad esindajad, kes on IT-maailma tutvustanud. K\u00e4esolevas osas k\u00e4sitleme p\u00f5him\u00f5tteid, mille kohaselt toimub SMT rakendamine IT-infrastruktuuris ja VoIP liikluse j\u00e4lgimine selle abil.<\/p>\n<p><img decoding=\"async\" alt=\"VoIP-v\u00f5rkude liiklusj\u00e4lgimise s\u00fcsteemid. Teine osa \u2014 korraldamise p\u00f5him\u00f5tted\" src=\"\/wp-content\/uploads\/259093cd1f25d777afae57d136384f0e.png\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h3>VoIP-liikluse j\u00e4lgimiss\u00fcsteemide arhitektuur<\/h3>\n<p><i>Me ehitasime, ehitasime ja l\u00f5puks ehitasime valmis. Hurra!<br \/>\nMultikast \u201eT\u0161eburashka ja krokodill Gena\u201c.<br \/>\n<\/i><br \/>\nNagu varem mainitud, on side- ja telekommunikatsioonit\u00f6\u00f6stuses esindatud piisavalt tooteid, mis kuuluvad vastavasse kategooriasse. Siiski, kui j\u00e4tta k\u00f5rvale nimi, arendaja, platvorm ja muud, on k\u00f5ik nad arhitektuuri seisukohalt enam-v\u00e4hem sarnased (v\u00e4hemalt nendest, millega autor on kokku puutunud). Oluline on m\u00e4rkida, et see tuleneb just nimelt muudest meetodest, mis v\u00f5imaldavad v\u00f5rgu elementidelt andmete kogumist, et neid hiljem p\u00f5hjalikult anal\u00fc\u00fcsida. Subjektiivse arvamuse kohaselt m\u00e4\u00e4ravad viimased pigem praegune erinevate valdkondade areng. Selgema arusaamise huvides vaatame j\u00e4rgmisi analoogiaid.<\/p>\n<p>Alates hetkest, mil suur vene teadlane Vladimir Aleksandrovit\u0161 Kotelnikov l\u00f5i arvutusteoreemi, sai inimkond suurep\u00e4rase v\u00f5imaluse teostada analoogdigitaalset ja digitaalanaloogset konversiooni k\u00f5nesignaalidest, mille t\u00f5ttu saame t\u00e4ielikult nautida nii imelist kommunikatsiooniviisi nagu IP-telefonia. Kui vaatame k\u00f5nesignaalide t\u00f6\u00f6tlemise mehhanismide arengut (st algoritmid, koodekid, kodeerimismeetodid jne), siis v\u00f5ime m\u00e4rgata, kuidas digitaalne signaalit\u00f6\u00f6tlus (DST) on teinud p\u00f5him\u00f5ttelise sammu teabe edastamise kodeerimises \u2013 k\u00f5nesignaali ennustamise v\u00f5imaluse realiseerimises. See t\u00e4hendab, et asemel, et lihtsalt digitaliseerida ja kasutada a- ja u-seaduse kokkusurumist (G.711A\/G.711U), on n\u00fc\u00fcd v\u00f5imalik edastada vaid osa andmepunktidest, mille p\u00f5hjal taastatakse kogu s\u00f5num, mis s\u00e4\u00e4stab oluliselt ribalaiust. Naastes SMT teema juurde, tasub m\u00e4rkida, et hetkel pole sarnaste kvaliteetsete muudatustega liiklustuvastamisviiside puhul peale mirrorimise \u00fchtegi teist t\u00f5husat varianti.<\/p>\n<p>Vaadakem joonist, mis on toodud allpool ja illustreerib, mida on vastava valdkonna spetsialistid ehitanud.<\/p>\n<p><img decoding=\"async\" alt=\"VoIP-v\u00f5rkude liiklusj\u00e4lgimise s\u00fcsteemid. Teine osa \u2014 korraldamise p\u00f5him\u00f5tted\" src=\"\/wp-content\/uploads\/7a2ee32b178195df541d094141edb219.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nJoonis 1. SMT \u00fcldine arhitektuuri skeem.<\/p>\n<p>Peaaegu iga SMT koosneb kahest peamisest komponendist: serverist ja liiklushaardeagentidest (v\u00f5i prooviv\u00f5tjatest). Server v\u00f5tab, t\u00f6\u00f6tleb ja salvestab VoIP-iga seotud liiklust, mis p\u00e4rineb agentidelt, ning v\u00f5imaldab spetsialistidel t\u00f6\u00f6tada saadud teabega erinevates esitlustes (diagrammid, joonised, Call Flow jne). Liiklushaardeagentide \u00fclesanne on v\u00f5tta VoIP-liiklust v\u00f5rgu tuumaseadmest (nt SBC, softswitch, v\u00e4ravad jne), muuta see serveri tarkvaras kasutatavasse formaati ning edastada see serverile edasisteks toiminguteks.<\/p>\n<p>Nagu muusikas loovad heliloojad variaatioid peamistest meloodiatest, on ka antud juhul v\u00f5imalikud erinevad variandid esitatud skeemi rakendamiseks. Nende mitmekesidus on piisavalt suur ja peamiselt m\u00e4\u00e4ratletud infrastruktuuri omaduste j\u00e4rgi, kuhu SMT paigaldatakse. K\u00f5ige sagedamini esinev variant on see, kus mitte paigaldatakse ega seadistata grabimisagente. Sel juhul suunatakse anal\u00fc\u00fcsitav liiklus otse <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\"   title=\"serverile\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2851\">serverile<\/a> v\u00f5i n\u00e4iteks saab server vajaliku teabe pcap-failidest, mille on moodustanud j\u00e4lgimisobjektid. Sellist kohaletoimetamise viisi valitakse tavaliselt juhul, kui proovi seadistamine pole v\u00f5imalik. Seadmestiku asukoha puudumine, virtualiseerimisvahendite ressursside nappus, transportiva IP-v\u00f5rgu korraldamise vead ja seega probleemid v\u00f5rgu\u00fchendusega jne, k\u00f5ik need v\u00f5ivad olla p\u00f5hjuseks, miks valida m\u00e4rgitud monitorimise korraldusvarianti.<\/p>\n<p>M\u00f5istes, kuidas erinevad SMT-d saavad IT-infrastruktuuri arhitektuurilisest aspektist rakenduda, vaatleme n\u00fc\u00fcd aspekte, mis kuuluvad s\u00fcsteemiadministraatorite p\u00e4devusse, nimelt tarkvaras\u00fcsteemide juurutamise viise serverites.<\/p>\n<p>Lahenduse ettevalmistamise k\u00e4igus v\u00f5rgu j\u00e4lgimise komponentide rakendamiseks tekib teostajatel alati palju k\u00fcsimusi. N\u00e4iteks, milline peaks olema serveri riistvarakomplekt, kas k\u00f5ik s\u00fcsteemi komponendid peaksid olema \u00fchel hostil v\u00f5i tasub need \u00fcksteisest eraldi paigutada, kuidas tarkvara installida jne. \u00dclaltoodud ja paljude teiste sarnaste k\u00fcsimuste ulatus on suur ning palju vastuseid s\u00f5ltuvad t\u00f5eliselt konkreetsetest kasutustingimustest (v\u00f5i projekteerimisest). Siiski p\u00fc\u00fcame jagada spetsiifilisust, et saada \u00fcldine arusaam ja \u00fclevaade SMT-de juurutamise sellest k\u00fcljest.<\/p>\n<p>Seega, esimene k\u00fcsimus, mis alati huvitab spetsialiste SMT rakendamisel, on see, milliste tehniliste n\u00e4itajatega serverit kasutada? Arvestades vabalt kergesti k\u00e4ttesaadava tarkvara laialdast levikut, k\u00fcsitakse seda k\u00fcsimust nii tihti, et selle populaarsuse t\u00f5ttu v\u00f5ib-olla v\u00f5iks seda v\u00f5rrelda k\u00fcsimusega \"Mida teha?\", mida k\u00fcsis veel Nikolai Gavrilovitch T\u0161ernishchev. Peamine tegur, mis m\u00f5jutab vastust, on meedia sessioonide arv, mida telefoni platvorm t\u00f6\u00f6tleb v\u00f5i hakkab t\u00f6\u00f6tlema. Kvantitatiivne ja m\u00f5\u00f5detav karakteristik, mis annab konkreetse \u00fclevaate nimetatud tegurist, on parameeter CAPS (Call Attempts Per Second) ehk k\u00f5nede arv sekundis. Selle k\u00fcsimuse vastamise vajadus tuleneb eelk\u00f5ige sellest, et just teave sessioonidest, mis suunatakse s\u00fcsteemi, koormab selle serverit.<\/p>\n<p>Teiseks k\u00fcsimuseks, mis serveri riistvarakomponentide omaduste otsustamise k\u00e4igus tekib, on tarkvara koostis (operatsioonikeskkonnad, andmebaasid jms), mis sellel t\u00f6\u00f6tama hakkab. Signaal- (v\u00f5i meedia) liiklus j\u00f5uab serverisse, kus seda t\u00f6\u00f6deldakse (signaalis\u00f5numite anal\u00fc\u00fcsimine) mingi rakenduse (nt Kamailio) abil, p\u00e4rast mida sorteeritud teave paigutatakse andmebaasi. Erinevate SMT-de jaoks v\u00f5ivad rakendused, mis teevad signaal\u00fcksuste defragmenteerimist, ning rakendused, mis pakuvad salvestamist, olla erinevad. Kuid k\u00f5iki neid \u00fchendab \u00fchte t\u00fc\u00fcpi mitme l\u00f5ime tugi. Samas on oluline m\u00e4rkida, et selle infrastruktuuri elemendi, SMT, erip\u00e4rast tulenevalt \u00fcletab kirjutamisoperatsioonide arv ketas arvukalt lugemisoperatsioonide arvu.<\/p>\n<p>Ja l\u00f5puks... \"Kui palju on selles s\u00f5nas\": server, virtualiseerimine, konteineriseerimine... Viimane, kuid v\u00e4ga oluline aspekt, mida selles artikli osas k\u00e4sitletakse, on v\u00f5imalikud viisid SMT komponentide installimiseks selle kasutusele v\u00f5tmisel. Tehnoloogiad, mis on loetletud A.S. Pusjkini surematu teose tsitaadi k\u00f5rval, on laialdaselt levinud erinevates infrastruktuurides ja projektides. \u00dchest k\u00fcljest on nad tihedalt omavahel seotud, kuid teisest k\u00fcljest erinevad nad paljuski. Siiski on k\u00f5ik need, \u00fchel v\u00f5i teisel kujul, v\u00e4lja t\u00f6\u00f6tajad esitanud kui saadavalolevaid variante oma toodete installimiseks. Kokkuv\u00f5tteks loetletud s\u00fcsteemide jaoks, mida k\u00e4sitleti artikli esimeses osas, tuletame meelde j\u00e4rgmisi viise nende juurutamiseks f\u00fc\u00fcsilisele serverile v\u00f5i virtuaalsele masinale:<br \/>\n \u2014 automaatse installimise skriptide kasutamine v\u00f5i k\u00e4sitsi installimine ja vastava tarkvara hilisem seadistamine,<br \/>\n \u2014 valmis OS-pildi kasutamine, milles on eelinstallitud SMT ja\/v\u00f5i agendi tarkvara,<br \/>\n \u2014 konteineriseerimise tehnoloogia kasutamine (Docker).<\/p>\n<p>Loetletud installimisvahenditel on oma eelised ja puudused ning spetsialistidel on omad eelistused, piirangud ja konkreetsed tingimused, milles nad kasutavad v\u00f5i rakendavad oma infrastruktuuri, et anda soovitusi. Teisest k\u00fcljest on antud SIP-traffiku j\u00e4lgimise s\u00fcsteemide juurutamise kirjeldus piisavalt selge ja sellel hetkel ei vaja see detailsemat k\u00e4sitlemist.<\/p>\n<p>See on veel \u00fcks artikkel, mis on p\u00fchendatud VoIP-v\u00f5rgu olulisele ja huvitavale elemendile \u2013 SIP-traffiku j\u00e4lgimise s\u00fcsteemile. Nagu alati, t\u00e4nan lugejaid selle materjali vastu n\u00e4idatud huvi eest! J\u00e4rgmises osas p\u00fc\u00fcame veelgi s\u00fcgavamale minna ja k\u00e4sitleda tooteid HOMER SIP Capture ja SIP3.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/453216\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435, \u043a\u043e\u043b\u043b\u0435\u0433\u0438! \u0412 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0435\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u043c\u044b \u043f\u043e\u0437\u043d\u0430\u043a\u043e\u043c\u0438\u043b\u0438\u0441\u044c \u0441 \u0442\u0430\u043a\u0438\u043c \u043f\u043e\u043b\u0435\u0437\u043d\u044b\u043c \u0438, \u043a\u0430\u043a \u043c\u043e\u0436\u043d\u043e \u0437\u0430\u043c\u0435\u0442\u0438\u0442\u044c, \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b\u043c \u044d\u043b\u0435\u043c\u0435\u043d\u0442\u043e\u043c VoIP-\u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b, \u043a\u0430\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u0430 \u043c\u043e\u043d\u0438\u0442\u043e\u0440\u0438\u043d\u0433\u0430 \u0442\u0440\u0430\u0444\u0438\u043a\u0430 \u0438\u043b\u0438, \u0434\u043b\u044f \u043a\u0440\u0430\u0442\u043a\u043e\u0441\u0442\u0438, \u0421\u041c\u0422. \u0423\u0437\u043d\u0430\u043b\u0438, \u0447\u0442\u043e \u044d\u0442\u043e \u0442\u0430\u043a\u043e\u0435, \u043a\u0430\u043a\u0438\u0435 \u0437\u0430\u0434\u0430\u0447\u0438 \u0440\u0435\u0448\u0430\u0435\u0442, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043e\u0442\u043c\u0435\u0442\u0438\u043b\u0438 \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u044f\u0440\u043a\u0438\u0445 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u0438\u0442\u0435\u043b\u0435\u0439, \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u043c\u0438\u0440\u0443 \u0418\u0422. \u0412 \u0434\u0430\u043d\u043d\u043e\u0439 \u0447\u0430\u0441\u0442\u0438 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0438\u043c \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u044b, \u0441\u043e\u0433\u043b\u0430\u0441\u043d\u043e \u043a\u043e\u0442\u043e\u0440\u044b\u043c \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432\u043d\u0435\u0434\u0440\u0435\u043d\u0438\u0435 \u0421\u041c\u0422 \u0432 \u0418\u0422-\u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0443 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-34383","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 4.9.10 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0417\u0434\u0440\u0430\u0432\u0441\u0442\u0432\u0443\u0439\u0442\u0435, \u043a\u043e\u043b\u043b\u0435\u0433\u0438! 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