temu 6 - layer network
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KOMUNIKASI DATA
Layer Network
Presented by:
Kukuh Nugroho
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Komunikasi Antar Layer Network
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Enkapsulasi [Flash Back]
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Format header tergantung dari protokol di layer network yang digunakan.
Aplikasi
Header Transport
DATA
DATA
NetworkHeader DATA
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4
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Protokol di Layer Network
Protokol yang umum digunakan
IP (Internet Protocol)
Protokol masa lalu
Novell Internetwork Packet Exchange (IPX)
AppleTalk
Connectionless Network Service (CLNS/DECNet)
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IP versi 4 (IPv4)
IP versi 6 (IPv6)
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Type of Service (ToS) tipe data. Time to Live agar data tidak looping (muter-muter).
Source Address identitas alamat pengirim.
Destination Address identitas alamat penerima.
Format Header IPv4
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Format Header IPv6
6
128 bit
128 bit
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Kekurangan IPv4
Pengguna Internet bertambah pesat
Solusi:
IPv6
NAT (Network Address Translation)
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Alokasi alamat IPv4
232 = 4.294.967.296
Alokasi alamat IPv6
2128 = 3,4 1038
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Lapis Network: bagaimana data bisa sampai ke tujuan?
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Data agar bisa sampai ke perangkat tujuan?
Perlu alamat menyediakan mekanisme pengalamatan.
Protokol yang digunakan:
Internet Protocol (IP)
IP versi 4 (IPv4)
IP versi 6 (IPv6)
Novell Internetwork Packet Exchange (IPX), AppleTalk
Perlu memilih jalan/jalur menyediakan mekanisme ruting.
Fungsi Layer Network
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Komputer A Komputer B
Jalur 1 ?
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Paket data dikirimkan melewati jaringan.
Karakteristik:
Connectionless - tidak perlu tanya ke penerima, jika ingin mengirimkanpaket data.
Best Effort (unreliable) - tidak menjamin paket data sampai ke penerima.
Media Independent - dalam mengirimkan paket data, tidak peduli
mengenai jenis media yang akan digunakan.
Internet Protocol (IP)
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IP - Connectionless
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IP - Best Effort Delivery
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IP - Media Independent
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