Eksploatacija Telekomunikacionih Mreža

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Eksploatacija Telekomunikacionih Mreža Poštanski Saobraćaj i Telekomunikacije Uvodni čas - 25/02/2016

Predavači Dejan Vukobratović, predmetni nastavnik Lokacija: Blok F – 303 Konsultacije: bilo kada Email: dejanv@uns.ac.rs Miloš Radosavljević, predmetni asistent Lokacija: Blok F – 215 Email: milosradosavljevic@yahoo.com

Ispit – Struktura i Bodovanje Pitanja i zadačići Spisak pitanja dobijate, a zadačići prate teoriju... Kolokvijum? Dva kolokvijuma, termini po dogovoru... Auditorne vežbe – 10% + 20% Prisustvo na vežbama se boduje (max 10%) Provera znanja i aktivnost na vežbama (max 20%)

Radni Kalendar

Pregled kursa po temama i časovima Komunikacione Mreže Pregled kursa po temama i časovima

Čas 1: Protokoli i referentni modeli (OSI, TCP/IP) OSI MODEL TCP/IP MODEL APLIKACIONI SLOJ (APPLICATION LAYER) APLIKACIONI SLOJ (APPLICATION LAYER) PREZENTACIONI SLOJ (PRESENTATION LAYER) SLOJ SESIJE (SESSION LAYER) TRANSPORTNI SLOJ (TRANSPORT LAYER) TRANSPORTNI SLOJ (TRANSPORT LAYER) MREŽNI SLOJ (NETWORK LAYER) MREŽNI SLOJ (NETWORK LAYER) SLOJ LINKA (DATA LINK LAYER) SLOJ LINKA (DATA LINK LAYER) FIZIČKI SLOJ (PHYSICAL LAYER) FIZIČKI SLOJ (PHYSICAL LAYER)

Čas 1: Protokoli i referentni modeli Uvod u OSI model i terminologiju OSI model Univerzalni model po kojem su organizovane gotovo sve komunikacione mreže danas OSI terminologija Univerzalni „jezik“ komunikacije mrežnih inženjera Pored OSI modela, na ovom času postavljamo osnovne za dalje proučavanje komunikacionih mreža (podele mreža, vrste komutacija, itd.)

Čas 2: Fizički sloj (PHY) – Point-to-Point links wireless access (WiFi, LTE) fibre access (PON/FTTx) access network core network Data Center Content Providers Photonic nodes Wireless nodes Wireless links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER)

Čas 2: Fizički sloj (PHY) – Point-to-Point Osnove PHY sloja i popularne tehnologije Prenos u osnovnom opsegu (Ethernet LAN – IEEE 802.3) Linijsko kodovanje binarnih povorki, bitska sinhronizacija Prenos u propusnom opsegu (WiFi LAN – IEEE 802.11) Zaštitno kodovanje, digitalne modulacije, OFDM prenos Prenosni medijumi (UTP, Coax, Fiber, Radio) Primeri PHY sloja kod LAN tehnologija Pregled osnovnih standarda i karakteristika dve glavne LAN tehnologije: žičnog (UTP/Fiber) IEEE 802.3 Ethernet-a i bežičnog IEEE 802.11 WLAN

Čas 3: Sloj linka (DLL) – Framing, Flow/Error Ctrl, PPP wireless access (WiFi, LTE) fibre access (PON/FTTx) access network core network Data Center Content Providers Photonic nodes Wireless nodes Wireless links Photonic links SLOJ LINKA (DATA LINK LAYER) FIZIČKI SLOJ (PHYSICAL LAYER)

Čas 3: Sloj linka (Data Link Layer) Formiranje DLL paketa (frejmova) Sinhronizacija na nivou frejma (Synch sequences) Detekcija greške pri prenosu frejma (CRC) Pouzdan prenos DLL frejmova ARQ procedure za DLL kontrolu greške (Error Control) Stop and Wait, Go Back N, Selective Repeat Procedure za DLL kontrolu toka (Flow Control) Stop and Wait, Sliding Window Primer: PPP protokol

Čas 4: Sloj linka (DLL) – Multiple Access Control (MAC) Data Center Content Providers fibre access (PON/FTTx) core network access network SLOJ LINKA (DATA LINK LAYER) Photonic nodes UTP Wired nodes UTP Wired links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER) wired access (Ethernet)

Čas 4: Sloj linka (DLL) – Multiple Access Control (MAC) Statički MAC protokoli (Contention Free) TDMA, FDMA, CDMA (3G), OFDMA (4G) Dinamički MAC protokoli (Contention Based) ALOHA Slotted ALOHA CSMA, CSMA/CD (IEEE 802.3 Ethernet) CSMA/CA (IEEE 802.11 WLAN)

Čas 5: Sloj linka (DLL) – IEEE 802.3 Ethernet Data Center Content Providers fibre access (PON/FTTx) core network access network SLOJ LINKA (DATA LINK LAYER) Photonic nodes UTP Wired nodes UTP Wired links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER) wired access (Ethernet)

Čas 5: Sloj linka (DLL) – IEEE 802.3 Ethernet Ethernet IEEE 802.3 MAC protokol Format IEEE 802.3 MAC frejma IEEE 802.3 MAC adresiranje Ethernet IEEE 802.3 LLC protokol Uređaji i topologija Ethernet mreže Ethernet Hub Ethernet Switch GbE, 10GbE

Čas 6: Sloj linka (DLL) – IEEE 802.11 WLAN (Wi-Fi) Data Center Content Providers fibre access (PON/FTTx) core network access network SLOJ LINKA (DATA LINK LAYER) Photonic nodes Wireless nodes Wireless links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER) wireless access (WiFi, LTE)

Čas 6: Sloj linka (DLL) – IEEE 802.11 WLAN (Wi-Fi) IEEE 802.11 WLAN MAC protokol Format IEEE 802.11 WLAN MAC frejma IEEE 802.11 WLAN MAC adresiranje WLAN arhitektura mreže i interakcija sa 802.3 IEEE 802.11 WLAN MAC: CSMA/CA PCF i DCF mod rada WLAN

Čas 7: Mrežni sloj (NET) – Uvod u TCP/IP Data Center Content Providers fibre access (PON/FTTx) core network access network MREŽNI SLOJ (NETWORK LAYER) SLOJ LINKA (DATA LINK LAYER) Photonic nodes Wireless nodes Wireless links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER) wireless access (WiFi, LTE)

Čas 7: Mrežni sloj (NET) – Uvod u TCP/IP Istorijat razvoja Interneta Osnovne postavke Interneta TCP/IP protokol stek Uvod u NET sloj i rutiranje Osnove rutiranja Osnovni algoritmi rutiranja

Čas 8: Mrežni sloj (NET) – Uvod u IP Data Center Content Providers fibre access (PON/FTTx) core network access network MREŽNI SLOJ (NETWORK LAYER) SLOJ LINKA (DATA LINK LAYER) Photonic nodes Wireless nodes Wireless links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER) wireless access (WiFi, LTE)

Čas 8: Mrežni sloj (NET) – Uvod u IP Uvod u IP protokol IP adresiranje Format IP paketa (datagrama) IP rutiranje i algoritmi rutiranja u IP mrežama ARP protokol: veza IP i LAN protokola Tabele rutiranja i osnovni mehanizam rutiranja Dinamički protokoli rutiranja (OSPF, BGP)

Čas 9: Mrežni sloj (NET) – ICMP, DHCP, DNS, IPv6 Data Center Content Providers fibre access (PON/FTTx) core network access network MREŽNI SLOJ (NETWORK LAYER) SLOJ LINKA (DATA LINK LAYER) Photonic nodes Wireless nodes Wireless links Photonic links FIZIČKI SLOJ (PHYSICAL LAYER) wireless access (WiFi, LTE)

Čas 9: Mrežni sloj (NET) – ICMP, DHCP, DNS, IPv6 ICMP protokol Protokol za nadgledanje IP protokola DHCP protokol DNS sistem Imena hostova na Internetu i DNS serveri IPv6 Ideja i trenutno stanje

Čas 10: Transportni sloj (TRA) – UDP i TCP protokoli Data Center PHY DLL NET TRA Content Providers fibre access (PON/FTTx) core network access network FIZIČKI SLOJ (PHYSICAL LAYER) SLOJ LINKA (DATA LINK LAYER) MREŽNI SLOJ (NETWORK LAYER) TRANSPORTNI SLOJ (TRANSPORT LAYER) Photonic nodes Wireless nodes Wireless links Photonic links wireless access (WiFi, LTE)

Čas 10: Transportni sloj (TRA) – UDP i TCP protokoli Osnovne funkcije transportnih protokola Koncept Portova i Socket-a UDP protokol Jednostavan nepouzdan protokol bez uspostavljanja veze TCP protokol Kompleksan pouzdan protokol sa uspostavljanjem veze, TCP kontrola zagušenja

Čas 11: Sloj Aplikacije (APP) – HTTP, Video over IP Data Center PHY DLL NET TRA Content Providers fibre access (PON/FTTx) core network APLIKACIONI SLOJ (APPLICATION LAYER) access network FIZIČKI SLOJ (PHYSICAL LAYER) SLOJ LINKA (DATA LINK LAYER) MREŽNI SLOJ (NETWORK LAYER) TRANSPORTNI SLOJ (TRANSPORT LAYER) Photonic nodes Wireless nodes Wireless links Photonic links wireless access (WiFi, LTE)

Čas 11: Sloj Aplikacije (APP) – HTTP, Video over IP HTTP protokol Osnovna Internet platforma za pregled Web sadržaja Peer-to-Peer protokoli Bit Torrent Video over IP Video on Demand: Dynamic HTTP Streaming (DASH) Interactive video: WebRTC

Čas 12A: Internet of Things (IoT) Data Center Content Providers fibre access (PON/FTTx) core network access network Photonic nodes Wireless nodes Wireless links Photonic links wireless access (WiFi, LTE)

Čas 12B: IP Mobile Cellular Systems – 4G LTE wireless access (WiFi, LTE) fibre access (PON/FTTx) access network core network Data Center Content Providers Photonic nodes Wireless nodes Wireless links Photonic links

Eksploatacija Telekomunikacionih Mreža Poštanski Saobraćaj i Telekomunikacije Uvodni čas - 25/02/2016