marshrutizatsiya paketov

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ministerstvo po razvitiyu informatsionnix texnologiy i kommunikatsiy respubliki uzbekistana tashkentskiy universitet informatsionnix texnologiy imeni muxammada al-xorazmi samostoyatelnaya rabota№1 na temu: «marshrutizatsiya paketov» proveril(a): amirsaidov u.b. vipolnil(a): abdijamilova d.b. tashkent 2022 teoreticheskaya chast marshrutizator - spetsializirovanniy setevoy kompyuter, imeyushiy dva ili bolee setevix interfeysa i peresilayushiy paketi dannix mejdu razlichnimi segmentami seti. marshrutizator mojet svyazivat raznorodnie seti razlichnix arxitektur. dlya prinyatiya resheniy o peresilke paketov ispolzuetsya informatsiya o topologii seti i opredelyonnie pravila, zadannie administratorom. obichno marshrutizator ispolzuet adres poluchatelya, ukazanniy v zagolovke paketa, i opredelyaet po tablitse marshrutizatsii put, po kotoromu sleduet peredat dannie. esli v tablitse marshrutizatsii dlya adresa net opisannogo marshruta, paket otbrasivaetsya. sushestvuyut i drugie sposobi opredeleniya marshruta peresilki paketov, kogda, naprimer, ispolzuetsya adres otpravitelya, ispolzuemie protokoli verxnix urovney i drugaya informatsiya, soderjashayasya v zagolovkax paketov setevogo urovnya. neredko marshrutizatori mogut osushestvlyat translyatsiyu adresov otpravitelya i poluchatelya, filtratsiyu tranzitnogo potoka dannix na osnove opredelyonnix pravil s tselyu …

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sya umenshat metki. rabota algoritma zavershaetsya, kogda vse vershini posesheni. metka samoy vershini a polagaetsya ravnoy 0, metki ostalnix vershin - beskonechnosti. eto otrajaet to, chto rasstoyaniya ot a do drugix vershin poka neizvestni. vse vershini grafa pomechayutsya kak ne poseshyonnie. esli vse vershini posesheni, algoritm zavershaetsya. v protivnom sluchae, iz eshe ne poseshennix vershin vibiraetsya vershina, imeyushaya minimalnuyu metku. vershini, v kotorie vedut rebra nazivayutsya «sosedyami» etoy vershini. dlya kajdogo soseda vershini, krome otmechennix kak poseshennie, rassmotrim novuyu dlinu puti, ravnuyu summe znacheniy tekushey metki i dlini rebra, soedinyayushego vershinu s etim sosedom. esli poluchennoe znachenie dlini menshe znacheniya metki soseda, zamenim znachenie metki poluchennim znacheniem dlini. rassmotrev vsex sosedey, p, pometim vershinu kak poseshennuyu i povtorim shag algoritma. v prosteyshey realizatsii dlya xraneniya chisel d[i] mojno ispolzovat massiv chisel, a dlya xraneniya prinadlejnosti elementa mnojestvu u - massiv bulevix peremennix. v nachale algoritma rasstoyanie dlya nachalnoy vershini polagaetsya …

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$otokole marshrutizatsii ospf-dinamicheskom protokole, osnovannom na texnologii otslejivaniya sostoyaniya kanala(link-statetechnology) i ispolzuyushiy dlya naxojdeniya kratchayshego puti algoritm deykstri. kod: #include #include #define size 6 int main() { int a[size][size]; // matritsasvyazey int d[size]; // minimalnoe rasstoyanie int v[size]; // poseshennie vershini int temp, minindex, min; int begin_index = 0; system("chcp 1251"); system("cls"); // initsializatsiya matritsi svyazey for (int i = 0; i 0) { temp = min + a[minindex][i]; if (temp = 0; i--) printf("%3d ", ver[i]); getchar(); getchar(); return 0; } rezultat: image1.png image2.png image3.png image4.png image5.png image6.png$

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ministerstvo po razvitiyu informatsionnix texnologiy i kommunikatsiy respubliki uzbekistana tashkentskiy universitet informatsionnix texnologiy imeni muxammada al-xorazmi samostoyatelnaya rabota№1 na temu: «marshrutizatsiya paketov» proveril(a): amirsaidov u.b. vipolnil(a): abdijamilova d.b. tashkent 2022 teoreticheskaya chast marshrutizator - spetsializirovanniy setevoy kompyuter, imeyushiy dva ili bolee setevix interfeysa i peresilayushiy paketi dannix mejdu razlichnimi segmentami seti. marshrutizator mojet svyazivat raznorodnie seti razlichnix arxitektur. dlya prinyatiya resheniy o peresilke paketov ispolzuetsya informatsiya o topologii seti i opredelyonnie pravila, zadannie administratorom. obichno marshrutizator ispolzuet adres poluchatelya, ukazanniy v zagolovke paketa, i opredelyaet...

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