{"id":34382,"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-pervaya-obzornaya\/"},"modified":"2019-10-31T21:58:01","modified_gmt":"2019-10-31T18:58:01","slug":"sistemy-monitoringa-trafika-v-setyah-voip-chast-pervaya-obzornaya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/sistemy-monitoringa-trafika-v-setyah-voip-chast-pervaya-obzornaya","title":{"rendered":"VoIP-v\u00f5rkude liikluse j\u00e4lgimise s\u00fcsteemid. Esimene osa \u2014 \u00fclevaade","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Selles materjalis p\u00fc\u00fcame vaadelda sellist huvitavat ja kasulikku IT-infrastruktuuri elementi nagu VoIP-liikluse j\u00e4lgimise s\u00fcsteem.<\/p>\n<p><img decoding=\"async\" alt=\"VoIP-v\u00f5rkude liikluse j\u00e4lgimise s\u00fcsteemid. Esimene osa \u2014 \u00fclevaade\" src=\"\/wp-content\/uploads\/9004bc0a3cd95f0497ebd943fe5c3021.png\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\nKaasaegsete telekommunikatsiooniv\u00f5rkude areng on jahmatav: signaalituli on edasi liikunud ja see, mis kunagi tundus m\u00f5eldamatu, on n\u00fc\u00fcd lihtne ja igap\u00e4evane. Ainult spetsialistid teavad, mis peitub igap\u00e4evasuses ja ulatuslikus tehnoloogia saavutuste kasutamises. \u00dclekandevahendite mitmekesisus, sarnaste teenuste meetodid, seadmete protokollid ja kodeerimisalgoritmid v\u00f5ivad olla igap\u00e4evaelu tarbijale jahmatav ning muutuda t\u00f5eliseks \u00f5udusunen\u00e4oks k\u00f5igile, kes on seotud nende korrektse ja stabiilse toimimise tagamisega: tooniliste signaalide v\u00f5i h\u00e4\u00e4lt liikluse edastamise, registreerimise keerukus softswitch'is, uue seadme testimine, toetuse taotluse koostamine tarnijale.<\/p>\n<p>\u00dclalmainitud protokolli m\u00f5isted on igas sidev\u00f5rgus nurgakivi, mille p\u00f5hjal s\u00f5ltub selle arhitektuur, struktuur ja seotud seadmete keerukus, samuti pakutavad teenused ja palju muud. On ilmne, et paindlikuma signaaliprotokolli kasutamine parandab sidev\u00f5rgu skaleeritavust, mis toob endaga kaasa erinevate v\u00f5rguseadmete kiire arvu suurenemise. <\/p>\n<p>Kuid isegi vajalik ja \u00f5igustatud omavahel seotud v\u00f5rguelementide arvu suurendamine toob endaga kaasa mitmeid keerukusi, mis on seotud v\u00f5rgu haldamise ja kasutamisega. Paljud spetsialistid on sattunud olukorda, kus saadud andmep\u00fc\u00fck ei v\u00f5imalda selgelt kindlaks teha tekkivat probleemi, kuna see on saadud v\u00f5rgu osas, mis ei ole selle probleemi tekkimisega seotud. <\/p>\n<p>Selline olukord on eriti iseloomulik VoIP-v\u00f5rkudele, kus on rohkem seadmeid kui \u00fcks PBX ja mitu IP-telefon. N\u00e4iteks kui lahenduses kasutatakse mitut piiripunkti seansikontrollerit, paindlikku l\u00fclitit v\u00f5i softswitchi, kuid kasutaja asukoha m\u00e4\u00e4ramise funktsioon on eraldatud ning paigutatud eraldi seadmesse. Sel juhul peab insener valima j\u00e4rgmise anal\u00fc\u00fcsiosas tuginedes oma praktilisele kogemusele v\u00f5i juhusele. <\/p>\n<p>See l\u00e4henemine on \u00e4\u00e4rmiselt v\u00e4sitav ja ebatootlik, kuna sunnib korduvalt kasutama aega sama probleemiga tegelemiseks: milliseid vahendeid kasutada pakettide kogumiseks, kuidas tulemusi k\u00e4tte saada ja nii edasi. \u00dchelt poolt harjub inimene k\u00f5igega, nagu teada. Ka seda saab harjuda, \"k\u00e4tte saada\" ja kannatlikkust treenida. Kuid teisest k\u00fcljest on olemas veel \u00fcks keeruline aspekt, millega tuleb arvestada \u2013 j\u00e4lgimisv\u00f5rgu j\u00e4lgimiste korrelatsioon erinevatelt aladelt. K\u00f5ik eeltoodud ning paljud teised sideanal\u00fc\u00fcsi \u00fclesanded on paljude spetsialistide tegevuse objektiks, kellele on abiks liikluse j\u00e4lgimise s\u00fcsteemid.<\/p>\n<h3>Sidev\u00f5rkude liikluse j\u00e4lgimise s\u00fcsteemid<\/h3>\n<p>\n<i>Ja koos \u2014 liigume \u00fches suunas: sina omal moel, mina omal moel.<br \/>\nJ. Detot\u0161kin<br \/>\n<\/i><br \/>\nKaasaegsed meediatranspordi v\u00f5rgud projekteeritakse ja ehitatakse erinevate kontseptsioonide rakendamise kaudu, mille aluseks on arvukad telekommunikatsiooniprotokollid: CAS, SS7, INAP, H.323, SIP jne. Liikluse j\u00e4lgimise s\u00fcsteem (LJS) on t\u00f6\u00f6riist, mis on loodud eespool nimetatud (ja mitte ainult) protokollide s\u00f5numite haaramiseks ning sisaldab komplekti mugavaid, intuitiivseid ja informatiivseid liideseid nende anal\u00fc\u00fcsimiseks. LJS peamine eesm\u00e4rk on teha signaalij\u00e4lgimised ja dump'id igal ajal spetsialistidele kergesti k\u00e4ttesaadavaks (sealhulgas reaalajas) ilma spetsialiseeritud programmide (nt Wireshark) kasutamiseta. Teiselt poolt p\u00f6\u00f6rab iga kvalifitseeritud spetsialist t\u00e4helepanu k\u00fcsimustele, mis on seotud n\u00e4iteks IT-infrastruktuuri turvalisusega. <\/p>\n<p>Oluline aspekt, mis on otseselt seotud selle k\u00fcsimusega, on spetsialisti v\u00f5ime \"hoida k\u00e4tt pulsil\", mida on v\u00f5imalik saavutada ka \u00f5igeaegse teavitamise kaudu m\u00f5nest juhtumist. Kuna r\u00e4\u00e4gime teavitamise k\u00fcsimustest, peame silmas sidev\u00f5rgu monitooringut. Tagasi tulles eespool toodud m\u00e4\u00e4ratluse juurde, v\u00f5imaldab SMT kontrollida neid s\u00f5numeid, vastuseid ja tegevusi, mis v\u00f5ivad viidata v\u00f5rgus toimuvale ebanormaalsetele k\u00e4itumistele (n\u00e4iteks vastused 403 v\u00f5i 408 grupis 4xx SIP-is v\u00f5i j\u00e4rsk sessioonide arvu t\u00f5us trunkil), ning saada vastava infograafika, mis illustreerib toimuvat selgelt. <\/p>\n<p>Kuid tuleb m\u00e4rkida, et VoIP-liikluse monitooringus\u00fcsteem ei ole algselt klassikaline Fault Monitoring System, mis v\u00f5imaldab koostada v\u00f5rgu kaarte, j\u00e4lgida elementide k\u00e4ttesaadavust, ressursside kasutamist, perifeeriat ja palju muud (n\u00e4iteks nagu Zabbix).<\/p>\n<p>P\u00e4rast arusaamist, mis on liikluse j\u00e4lgimise s\u00fcsteem ja milliseid \u00fclesandeid see lahendab, liigume k\u00fcsimusele, kuidas seda kasulikult rakendada.<\/p>\n<p>On ilmne, et ainult liikluse j\u00e4lgimise s\u00fcsteem ei suuda koguda Call Flow 'n\u00e4pistamisega'. Selleks on vajalik koondada kogu kasutatavast seadmetest tulev liiklus \u00fchte punkti \u2013 Capture Serverisse. Seega m\u00e4\u00e4ratleb kirjutatu s\u00fcsteemi iseloomuliku omaduse, milleks on signaalitrafiku kogumiskoha keskne tagamine, ja see v\u00f5imaldab vastata \u00fclaltoodud k\u00fcsimusele: mida toob kaasa kompleksi kasutamine rakendatavas v\u00f5i k\u00e4itatavas v\u00f5rgus.<\/p>\n<p>Seega on inseneri harva v\u00f5imalik kohe vastata k\u00fcsimusele, kus t\u00e4pselt asub v\u00f5i v\u00f5iks asuda m\u00e4\u00e4ratud trafiku keskendumispunkt. \u00dchetaolise vastuse saamiseks on spetsialistidel vajalik teha rida uuringuid, mis on seotud VoIP-v\u00f5rgu anal\u00fc\u00fcsiga. N\u00e4iteks tuleb uuesti t\u00e4psustada seadmete koosseis, selgelt m\u00e4\u00e4ratleda nende \u00fchenduspunktid ning arvesse v\u00f5tta v\u00f5imalusi, mis v\u00f5imaldavad suunata vastavat trafikut kogumispunkti. Lisaks on selge, et k\u00e4sitletava k\u00fcsimuse lahendamise edusus s\u00f5ltub otseselt IP-transpordiv\u00f5rgu korraldusest. <\/p>\n<p>Seega, esimene asi, mida SMT rakendamine annab, on just see kauaoodatud, kuid siiski t\u00e4itmata v\u00f5rgu \u00fclevaade. Loomulikult k\u00fcsib t\u00e4helepanelik lugeja kohe, mis \u00fchendus on SMT-ga? Otsest seost siin ei ole ja ei saagi olla, kuid ... Enamiku inimeste, sealhulgas IT-maailmaga seotud inimeste, ps\u00fchholoogia on tavaliselt kaldu seostama selliseid s\u00fcndmusi teatud \u00fcritustega. J\u00e4rgmine eelis tuleneb eelmisest ja seisneb selles, et veel enne, kui SMT on k\u00e4ivitatud, on seadistatud ja konfigureeritud Capture Agents, aktiveeritud RTCP s\u00f5numite edastamine ning v\u00f5ivad ilmneda probleemid, mis vajavad kiiret sekkumist. N\u00e4iteks kuskil on moodustunud 'pudelikael' ja see on ilmselgelt n\u00e4htav ka ilma statistikat arvesse v\u00f5tmata, mida SMT v\u00f5ib pakkuda, kasutades andmeid, mida n\u00e4iteks RTCP pakub.<\/p>\n<p>N\u00fc\u00fcd naaseme varem kirjeldatud vajalikku j\u00e4lgimise ametisse ja naeratame, meenutades antud osa epigraafi s\u00f5nu. Selle oluliseis omadus, mida ei ole mainitud, on see, et tavaliselt saavad loetletud toiminguid sooritada piisava kvalifikatsiooniga t\u00f6\u00f6tajad, n\u00e4iteks Core Engineers. Teiselt poolt v\u00f5ivad j\u00e4lgimiste abil lahendatavad k\u00fcsimused h\u00f5lmata ka nn rutiinseid \u00fclesandeid. N\u00e4iteks p\u00f5hjuse m\u00e4\u00e4ramine, miks terminali ei registreerita installija v\u00f5i kliendi poolt. Sellega seoses on selge, et nende spetsialistide erakorraline v\u00f5imalus m\u00e4lupiltide tegemiseks seab neile kohustuse neid tootmis\u00fclesandeid t\u00e4ita. See ei ole t\u00f5hus, kuna see v\u00f5tab aega olulisemate probleemide lahendamiselt. <\/p>\n<p>Enamikus ettev\u00f5tetes, kus on soovitatav kasutada sellist toodet nagu SMT, on olemas spetsiaalne osakond, mille \u00fclesanne on t\u00e4ita rutiinseid toiminguid, et kergendada teiste spetsialistide koormust \u2013 teeninduslauad, helpdesk v\u00f5i tehniline tugi. Samuti ei ole ma lugejale mingit avastust tehes \u00fctlemas, et inseneride juurdep\u00e4\u00e4s tehnilise toe teenusele, v\u00f5ttes arvesse v\u00f5rgu turvalisust ja stabiilsust, k\u00f5ige kriitilisematesse s\u00f5lmedesse ei ole soovitatav (kuigi on t\u00e4iesti v\u00f5imalik, et see ei ole keelatud), ja just need v\u00f5rku kuuluvad elemendid sisaldavad k\u00f5ige kasulikumat vaatenurka dumpide osas. SMT, olles liikluse kogumise keskus ja omades intuitiivset ja l\u00e4bipaistvat liidest, suudab lahendada mitmeid v\u00e4ljendatud probleeme. Ainus tingimus on tagada ligip\u00e4\u00e4s liidesele tehnikute t\u00f6\u00f6kohtadest ning v\u00f5imalusel kirjutada teadmusbaasi artikkel selle kasutamise kohta.<\/p>\n<p>Kokkuv\u00f5tteks m\u00e4rgime k\u00f5ige tuntumaid ja huvitavamaid tooteid, mis mingil viisil t\u00e4idavad eelnevalt k\u00e4sitletud funktsiooni. Nende hulgas on: <noindex><a rel=\"nofollow\" href=\"https:\/\/www.voipmonitor.org\/\">Voipmonitor<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.sipcapture.org\/\">HOMER SIP Capture<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.oracle.com\/industries\/communications\/products\/operations-monitor\/\">Oracle Communications Monitor<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"http:\/\/seventest.ru\/products\/spider_soft\/\">SPIDER<\/a><\/noindex>. Kuigi on olemas \u00fcldine l\u00e4henemine organisatsioonile ja juurutamisele, on igal neist oma n\u00fcansid, subjektiivsed positiivsed ja negatiivsed k\u00fcljed, mis k\u00f5ik v\u00e4\u00e4rivad eraldi k\u00e4sitlemist. Just selle \u00fcle on juttu tulevastes materjalides. Ait\u00e4h Teie t\u00e4helepanu eest!<\/p>\n<p>UPD (23.05.2019): lisaks j\u00e4reldustes esitatud nimekirjale tuleks mainida veel \u00fchte toodet, millest autor sai teada suhteliselt hiljuti. <noindex><a rel=\"nofollow\" href=\"https:\/\/sip3.io\/\">SIP3<\/a><\/noindex> \u2013 noor, arenev esindaja SIP-trafiku monitoorimise s\u00fcsteemide maailmast.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/434002\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0434\u0430\u043d\u043d\u043e\u043c \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b\u0435 \u043f\u043e\u043f\u044b\u0442\u0430\u0435\u043c\u0441\u044f \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u0442\u044c \u0442\u0430\u043a\u043e\u0439 \u0438\u043d\u0442\u0435\u0440\u0435\u0441\u043d\u044b\u0439 \u0438 \u043f\u043e\u043b\u0435\u0437\u043d\u044b\u0439 \u044d\u043b\u0435\u043c\u0435\u043d\u0442 \u0418\u0422-\u0438\u043d\u0444\u0440\u0430\u0441\u0442\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 VoIP-\u0442\u0440\u0430\u0444\u0438\u043a\u0430. \u0420\u0430\u0437\u0432\u0438\u0442\u0438\u0435 \u0441\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u044b\u0445 \u0442\u0435\u043b\u0435\u043a\u043e\u043c\u043c\u0443\u043d\u0438\u043a\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0435\u0442\u0435\u0439 \u043f\u043e\u0440\u0430\u0436\u0430\u0435\u0442: \u043e\u0442 \u0441\u0438\u0433\u043d\u0430\u043b\u044c\u043d\u044b\u0445 \u043a\u043e\u0441\u0442\u0440\u043e\u0432 \u043e\u043d\u0438 \u0448\u0430\u0433\u043d\u0443\u043b\u0438 \u0434\u0430\u043b\u0435\u043a\u043e \u0432\u043f\u0435\u0440\u0451\u0434, \u0438 \u0442\u043e, \u0447\u0442\u043e \u043a\u0430\u0437\u0430\u043b\u043e\u0441\u044c \u043d\u0435\u043c\u044b\u0441\u043b\u0438\u043c\u044b\u043c \u0440\u0430\u043d\u0435\u0435, \u0441\u0435\u0439\u0447\u0430\u0441 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043f\u0440\u043e\u0441\u0442\u044b\u043c \u0438 \u043e\u0431\u044b\u0434\u0435\u043d\u043d\u044b\u043c. \u0418 \u0442\u043e\u043b\u044c\u043a\u043e \u043f\u0440\u043e\u0444\u0435\u0441\u0441\u0438\u043e\u043d\u0430\u043b\u044b \u0437\u043d\u0430\u044e\u0442, \u0447\u0442\u043e \u0441\u043a\u0440\u044b\u0432\u0430\u0435\u0442\u0441\u044f \u0437\u0430 \u043f\u043e\u0432\u0441\u0435\u0434\u043d\u0435\u0432\u043d\u043e\u0441\u0442\u044c\u044e \u0438 \u0448\u0438\u0440\u043e\u043a\u0438\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0434\u043e\u0441\u0442\u0438\u0436\u0435\u043d\u0438\u0439 \u043e\u0442\u0440\u0430\u0441\u043b\u0438 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 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