{"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-iga seotud liiklust j\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>Uues <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/434002\/\">eelmine<\/a><\/noindex> eelnevas materjalis tutvustasime sellist kasulikku ja, nagu v\u00f5ib m\u00e4rgata, \u00fcsna vajalikku elementi VoIP-infrastruktuuris nagu liiklust j\u00e4lgimise s\u00fcsteem ehk LJS. Saime teada, mis see on, milliseid \u00fclesandeid see t\u00e4idab ning m\u00e4rkisime k\u00f5ige silmapaistvamaid esindajaid, keda IT arendajad maailmale tutvustasid. Antud osas vaatleme p\u00f5him\u00f5tteid, mille kohaselt toimub LJS rakendamine IT-infrastruktuuris ja VoIP-liikluse j\u00e4lgimine selle abil.<\/p>\n<p><img decoding=\"async\" alt=\"VoIP-iga seotud liiklust j\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\u00e4lgimise s\u00fcsteemide arhitektuur<\/h3>\n<p><i>Me ehitasime, ehitasime ja l\u00f5puks ehitasime valmis. Hurraa!<br \/>\nMultifilmist \u00abT\u0161ebur\u0161ka ja krokodill Gena\u00bb.<br \/>\n<\/i><br \/>\nNagu eelnevalt mainitud, on side- ja telekommunikatsioonit\u00f6\u00f6stuses piisavalt tooteid, mis kuuluvad vastavasse kategooriasse. Siiski, kui abstraktseerida nime, arendaja, platvormi jne, siis v\u00f5ib m\u00e4rkida, et k\u00f5ik need on rohkemasti sarnased oma arhitektuuri poolest (v\u00e4hemalt need, millega autor on kokku puutunud). Tuleb m\u00e4rkida, et see on seotud eelk\u00f5ige sellega, et puuduvad muud v\u00f5imalused liikluse salvestamiseks v\u00f5rgu elementidest selle j\u00e4rgmiseks detailseks anal\u00fc\u00fcsiks. Seejuures, subjektiivselt \u00f6eldes, on see suuresti m\u00e4\u00e4ratud erinevate valdkondade arengutega. Selgema arusaamise nimel vaatleme j\u00e4rgmisi analoogiaid.<\/p>\n<p>Alates hetkest, kui suur vene teadlane Vladimir Aleksandrovit\u0161 Kotelnikov koostas m\u00f5\u00f5tureegli teooria, sai inimkond suurep\u00e4rase v\u00f5imaluse teostada analoog-digitaalset ja digitaal-analoogset muundumist h\u00e4\u00e4lsignaalides, t\u00e4nu millele saame t\u00e4ielikult kasutada sellist imelist suhtlust nagu IP-telefonia. Kui vaadata h\u00e4\u00e4l-signaalide t\u00f6\u00f6tlemismehhanismide (aka algoritmid, koodekid, kodeerimise meetodid jne) arengut, siis v\u00f5ib m\u00e4rgata, kuidas digitaalsed signaalit\u00f6\u00f6tlused on teinud olulise sammu teabe edastamise kodeerimisel \u2013 h\u00e4\u00e4l-signaali ennustamise v\u00f5imaluse rakendamine. See t\u00e4hendab, et lihtsalt digiteerimise ja a- ja u-kodeerimisseaduste (G.711A\/G.711U) kasutamise asemel on n\u00fc\u00fcd v\u00f5imalik edastada vaid osa m\u00f5\u00f5tudest, millest taastatakse kogu s\u00f5num, s\u00e4\u00e4stes seel\u00e4bi oluliselt ribalaiust. Tagasi tulles SMT teema juurde, m\u00e4rkime, et praeguseks ei ole kvaliteedimuutusi liikluse haaramisel, v\u00e4lja arvatud erinevad peegeldamise variandid.<\/p>\n<p>Vaatame edasi joonist, mis illustreerib, mida on vastava valdkonna spetsialistid ehitanud.<\/p>\n<p><img decoding=\"async\" alt=\"VoIP-iga seotud liiklust j\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 arhitektuuri \u00fcldskeem.<\/p>\n<p>Peaaegu iga SMT koosneb kahest p\u00f5hikomponendist: serverist ja liikluse haaramise agentidest (v\u00f5i proovidest). Server vastutab VoIP liikluse vastuv\u00f5tmise, t\u00f6\u00f6tlemise ja salvestamise eest, mis tuleb agentidelt, samuti annab spetsialistidele v\u00f5imaluse t\u00f6\u00f6tada saadud teabega erinevates esitlustes (graafikud, diagrammid, Call Flow jne). Liikluse haaramise agendid teostavad VoIP liikluse vastuv\u00f5tmist v\u00f5rgu tuumas\u00fcsteemi seadmetelt (nt SBC, softswitch, peab, jne), muundavad selle formaati, mida kasutatakse serveri tarkvaras, ja edastavad selle viimasele edasisteks manipuleerimiseks.<\/p>\n<p>Nagu muusikas loovad heliloojad p\u00f5himeledest variatsioone, on ka antud juhul v\u00f5imalik erinevaid rakendusvariante esitatud skeemile. Nende mitmekesisus on \u00fcsna suur ja peamiselt m\u00e4\u00e4rab selle infrastruktuuri omadused, milles SMT-d juurutatakse. K\u00f5ige sagedamini esinev variant on see, kus salvestusagente ei installita ega seadistata. Sellisel juhul suunatakse anal\u00fc\u00fcsitud liiklus otse <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\"   title=\"serveri\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2851\">serveri<\/a> v\u00f5i n\u00e4iteks server saab vajaliku teabe pcapt-failidest, mille on koostanud j\u00e4lgimisobjektid. Selline edastamisviis valitakse tavaliselt juhul, kui proovi paigaldamiseks ei ole v\u00f5imalik. Varustuse paigalduskoha puudumine, virtuaalimise ressursipuudus, probleemid IP-transportv\u00f5rgu korraldamisega ja sellest tulenevad probleemid v\u00f5rgu\u00fchendusega jne, k\u00f5ik need v\u00f5ivad olla p\u00f5hjuseks valitud j\u00e4lgimisorganisatsiooni variandi valimiseks.<\/p>\n<p>P\u00e4rast aru saamist, kuidas erinev SMT saab IT-infrastruktuuri arhitektuuri seisukohalt rakendatud olla, vaatame n\u00fc\u00fcd aspekte, mis enamasti kuuluvad s\u00fcsteemiadministraatorite p\u00e4devusse, nimelt tarkvara s\u00fcsteemide paigaldamise viise serverites.<\/p>\n<p>J\u00e4lgimisv\u00f5rgu antud komponendi rakendamise lahenduse ettevalmistamise k\u00e4igus tekib t\u00e4itjatel alati palju k\u00fcsimusi. N\u00e4iteks, millised peaksid olema serveri riistvara koostisosad, kas k\u00f5igi s\u00fcsteemi komponentide paigaldamine \u00fchel hostil on piisav v\u00f5i tuleks need \u00fcksteisest eraldada, millisel viisil tarkvara paigaldada jne. \u00dclaltoodud ja paljusid teisi seotud k\u00fcsimusi on v\u00e4ga ulatuslikud ning vastused paljudele neist s\u00f5ltuvad t\u00f5esti konkreetsetest kasutustingimustest (v\u00f5i projekteerimisest). Kuid p\u00fc\u00fcame \u00fcldistada konkreetset teavet, et saada \u00fcldine \u00fclevaade ja arusaam sellest SMT-deploymendi k\u00fcljest.<\/p>\n<p>Nii, esimene k\u00fcsimus, mis spetsialiste alati huvitab SMT rakendamisel, on see, milliste tehniliste omadustega serverit kasutada? Arvestades avatud l\u00e4htekoodiga tarkvara laialdast levikut, esitatakse see k\u00fcsimus nii sageli, et selle populaarsust v\u00f5ib v\u00f5rrelda k\u00fcsimusega \"Mida teha?\", mille esitas veel Nikolai Gavrilovit\u0161 T\u0161ev\u00f5r\u0161ev... Peamine tegur, mis m\u00f5jutab vastust, on meediasessioonide arv, mida telefoniplatvorm t\u00f6\u00f6tleb v\u00f5i hakkab t\u00f6\u00f6tlema. Numbriline ja t\u00f5eline omadus, mis annab konkreetse hinnangu mainitud tegurile, on parameeter CAPS (Call Attempts Per Second) v\u00f5i k\u00f5nede arv sekundis. K vajadus sellele k\u00fcsimusele vastata tuleneb peamiselt sellest, et just teave sessioonide kohta, mis suunatakse s\u00fcsteemi, loob koormuse selle serverile.<\/p>\n<p>Teine k\u00fcsimus, mis kerkib esile serveri riistvarakomponentide omaduste m\u00e4\u00e4ramisel, on tarkvara koosseis (operatsioonikeskkonnad, andmebaasid jne), mis sellel t\u00f6\u00f6tama hakkab. Signaal- (v\u00f5i meedia) liiklus suunatakse serverisse, kus seda t\u00f6\u00f6deldakse (signaalide s\u00f5numite anal\u00fc\u00fcs) m\u00f5ne rakenduse (n\u00e4iteks Kamailio) abil ning seej\u00e4rel paigutatakse teatud viisil vormistatud teave andmebaasi. Erinevate SMT-de puhul v\u00f5ivad rakendused, mis teostavad signaal\u00fchikute defragmentatsiooni, ja rakendused, mis tagavad salvestamise, olla erinevad. Siiski, k\u00f5ik need on seotud mitme protsessi loomuse t\u00f5ttu. Samas, arvestades sellise infrastruktuuri elementi nagu SMT, tuleks selles punktis m\u00e4rkida, et diskile kirjutamise operatsioonide arv \u00fcletab oluliselt sealt lugemise operatsioonide arvu.<\/p>\n<p>Ja l\u00f5puks... \u201eKui palju on selles s\u00f5nas\u201c: server, virtualiseerimine, konteineriseerimine... Viimane, kuid v\u00e4ga oluline aspekt, mida selles artikli osas k\u00e4sitletakse, on v\u00f5imalikud viisid SMT komponentide installimiseks selle juurutamisel. Tsitaadi k\u00f5rvale toodud A.S. Pu\u0161kini ajatu teosega seostatavad tehnoloogiad on laialdaselt levinud erinevates infrastruktuurides ja projektides. \u00dchest k\u00fcljest on need omavahel tihedalt seotud, teisest k\u00fcljest erinevad nad paljude kriteeriumide j\u00e4rgi silmapaistvalt. Sellegipoolest on k\u00f5ik need, mingis vormis, arendajate poolt v\u00e4lja pakutud nende toodete installimise v\u00f5imalustena. Kokkuv\u00f5tlikult on esimeses artikli osas loetletud s\u00fcsteemide jaoks j\u00e4rgmised meetodid nende juurutamiseks f\u00fc\u00fcsilisele serverile v\u00f5i virtuaalmasinale:<br \/>\n \u2014 automaatse installimise skriptide kasutamine v\u00f5i tarkvara k\u00e4sitsi installimine ja sellele j\u00e4rgnevad seadistused,<br \/>\n \u2014 valmis OS pildi kasutamine, kus on eelnevalt installitud SMT tarkvara ja\/v\u00f5i agent,<br \/>\n \u2014 konteineriseerimise tehnoloogia kasutamine (Docker).<\/p>\n<p>Loetletud installimisvahenditel on oma eelised ja puudused, ja spetsialistidel on oma eelistused, piirangud ja konkreetsed tingimused, milles nad oma infrastrukturiga t\u00f6\u00f6tavad v\u00f5i rakendavad, et anda mingi soovitusi. Teisalt on antud SIP liikluse monitooringu s\u00fcsteemide juurutamise teedes antud kirjeldus piisavalt selge ning praegusel etapil ei vaja see p\u00f5hjalikumat uurimist.<\/p>\n<p>Selline sai j\u00e4rjekordne artikkel, mis on p\u00fchendatud olulisele ja huvitavale elemendile VoIP-v\u00f5rgus \u2013 SIP liikluse monitooringu s\u00fcsteemile. Nagu ikka, t\u00e4nan lugejaid antud materjali vastu huvi \u00fclesn\u00e4itamise eest! J\u00e4rgmisel osal p\u00fc\u00fcame veel s\u00fcgavamale minna ja uurida 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 5.0.1.1 - 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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