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Network

TCP/IP ํ”„๋กœํ† ์ฝœ ์Šคํƒ

by unkwn98 2021. 9. 2.

๐ŸŒผ ์™œ ํ”„๋กœํ† ์ฝœ ์Šคํƒ์ด๋ผ๊ณ  ๋ถ€๋ฅผ๊นŒ?

- TCP์™€ IP๋Š” ๋ณ„๋„ ๊ณ„์ธต์—์„œ ๋™์ž‘ํ•˜๋Š” protocol์ด์ง€๋งŒ ํ•จ๊ป˜ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋Š”๋ฐ ์ด๋Ÿฐ protocol ๋ฌถ์Œ์„ protocol stack์ด๋ผ๊ณ  ๋ถ€๋ฅธ๋‹ค.

- ์‹ค์ œ๋กœ TCP/IP ํ”„๋กœํ† ์ฝœ ์Šคํƒ์—๋Š” UDP, ICMP, ARP, HTTP, SMTP, FTP์™€ ๊ฐ™์€ ๋‹ค์–‘ํ•œ application layer protocol์ด ์žˆ๋‹ค.

- ํ˜„๋Œ€ ๋„คํŠธ์›Œํฌ์—์„œ ์‹ค์ œ๋กœ ์‚ฌ์šฉํ•˜๋Š” ํ”„๋กœํ† ์ฝœ์€ TCP/IP ํ”„๋กœํ† ์ฝœ ์Šคํƒ์œผ๋กœ ๊ตฌํ˜„๋˜์–ด ์žˆ๋‹ค.

 

์• ํ”Œ๋ฆฌ์ผ€์ด์…˜ ๊ณ„์ธต(application) FTP SSH TELNET DNS SNMP
ํŠธ๋žœ์ŠคํฌํŠธ ๊ณ„์ธต(transport) TCP UDP
๋„คํŠธ์›Œํฌ ๊ณ„์ธต(network) ICMP IP ARP
๋ฐ์ดํ„ฐ๋งํฌ ๊ณ„์ธต(data link) Ethernet
ํ”ผ์ง€์ปฌ ๊ณ„์ธต(physical)

 

๐ŸŒผ physical & data link layer

- ๋ฌผ๋ฆฌ ๋ถ€๋ถ„, ์ด๋”๋„ท

 

๐ŸŒผ network layer

-  ๋ฐ์ดํ„ฐ๊ฐ€ ๋ชฉ์ ์ง€๋ฅผ ์ฐพ์•„๊ฐ€๋„๋ก ํ•ด์คŒ

 

๐ŸŒผ transport layer

- ์ž˜๋ฆฐ ํŒจํ‚ท์„ ๋ฐ์ดํ„ฐ ํ˜•ํƒœ๋กœ ์กฐํ•ฉํ•˜๋„๋ก ๋„์™€์ฃผ๋Š” ์ „์†ก๊ณ„์ธต

 

๐ŸŒผ application layer

- ๋น„ํŠธ ๊ธฐ๋ฐ˜์ด ์•„๋‹Œ ๋ฌธ์ž ๊ธฐ๋ฐ˜ ํ”„๋กœํ† ์ฝœ๋“ค์ด ๋งŽ์ด ์‚ฌ์šฉ๋˜๋Š” ๊ณ„์ธต

- application process๋ฅผ ์ •์˜ํ•˜๊ณ  application service๋ฅผ ์ˆ˜ํ–‰

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