OSI Layer 3 – Routing (part2)

Nyoman Suryadipta, ST, CCNP

Routing = RutePengirim ke PenerimaRouting = Router

Why Routing is Important ???

ROUTING = PERJALANAN PERGI & PULANG HARUS DIKONFIGURASI DI ROUTER PENGIRIM & PENERIMA

192.168.1.0/24 10.10.1.0/24

INTERNETWORK CONNECTION ROUTER DAPAT MENGHUBUNGKAN 2 JENIS ATAU LEBIH ALAMAT JARINGAN YANG BERBEDA

BEST PATHUntuk mencapai tujuan Router dapat melakukan

pengambilan keputusan dalam menentukan rute terbaik

Rute terbaik = Jalan terpendek/Bandwidth lebar/Delay rendah dsb

Jenis Routing

Statis Dinamis

Jenis Routing

Statis = Simple, Praktis, no ribet •Hanya cocok untuk jaringankecil/sederhana•Diperlukan input secara manual disetiap router saat

penambahan jaringan baru •Tidak cocok untuk jaringan kompleks dengan banyak

router

Jenis Routing Dinamis = Powerfull, kompleks • Cocok untuk jaringan besar dengan banyak router• Skala enterprise / ISP • Diperlukan skill / pengetahuan routing yang baik• Dapat menangani jaringan kompleks multi vendor, multi ISP

maupun antar Negara • Biaya tinggi karena membutuhkan spesifikasi router khusus

ROUTING STATIS

ROUTING FORMULA

IP ROUTE (JARINGAN YG DITUJU) (SUBNET MASK) (IP ROUTER TETANGGA/OUT INTERFACE ROUTER PENGIRIM)

Router Interface (PORT)

ROUTER MEMPUNYAI 2 INTERFACE ATAU LEBIH -> KE JARINGAN INTERNAL (SBG GATEWAY & MENUJU MODEM INTERNET ATAU ROUTER LAINNYA

INTERFACE SERIAL DIGUNAKAN UNTUK KONEKSI JARINGAN WAN

Fa0/1192.168.1.1

255.255.255.0

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

Fa0/110.10.1.1255.255.255.0

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0R1 R2

IP ROUTE R1 & R2 ???

R1 = IP ROUTE 10.10.1.0 255.255.255.0 172.16.1.2

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

JARINGAN TUJUAN

SUBNET MASK NEXT HOP

Fa0/1192.168.1.1

255.255.255.0

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0

Atau R1 Next Hop via Interface

R1 = IP ROUTE 10.10.1.0 255.255.255.0 Fa0/0

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

JARINGAN TUJUAN

SUBNET MASK OUT INTERFACE

Fa0/1192.168.1.1

255.255.255.0

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0

R2 = IP ROUTE 192.168.1.0 255.255.255.0 172.16.1.1

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

JARINGAN TUJUAN

Fa0/1192.168.1.1

255.255.255.0

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0

Atau R2 Next Hop via Interface

R2 = IP ROUTE 192.168.1.0 255.255.255.0 Fa0/0

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

JARINGAN TUJUAN

Fa0/1192.168.1.1

255.255.255.0

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0

Fa0/1192.168.1.1

255.255.255.0

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

Fa0/1172.16.2.1255.255.255.0

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0R1 R2

IP ROUTE R1,R2 & R3 ???

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.2.2

255.255.255.0R3

Fa0/1192.168.1.1

255.255.255.0

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

Fa0/1172.16.2.1255.255.255.0

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0R1 R2

R1ip route 172.16.2.0 255.255.255.0 172.16.1.2ip route 10.10.1.0 255.255.255.0 172.16.1.2

R2Ip route 192.168.1.0 255.255.255.0 172.16.1.1

Ip route 10.10.1.0 255.255.255.0 172.16.2.2

R3Ip route 172.16.1.0 255.255.255.0 172.16.2.1

Ip route 192.168.1.0 255.255.255.0 172.16.2.1

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.2.2

255.255.255.0R3

Fa0/1192.168.1.1

255.255.255.0

192.168.1.2255.255.255.0

Gateway : 192.168.1.1

Fa0/1172.16.2.1255.255.255.0

10.10.1.2255.255.255.0

Gateway : 10.10.1.1

Fa0/0172.16.1.1255.255.255.0

Fa0/0172.16.1.2

255.255.255.0R1 R2

R1ip route 0.0.0.0 0.0.0.0 172.16.1.2

R2Ip route 192.168.1.0 255.255.255.0 172.16.1.1

Ip route 10.10.1.0 255.255.255.0 172.16.2.2

R3Ip route 0.0.0.0 0.0.0.0 172.16.2.1

Fa0/110.10.1.1255.255.255.0

Fa0/0172.16.2.2

255.255.255.0R3

GROUP PRACTICE

Routing Statis tidak bisa menangani Routing dengan Banyak jalur alternatif (multipath routing)

Routing Dinamis dapat menangani Multipath RoutingDan mencari Rute alternative jika jalur Utama terputus

IGP = Interior Gateway Protocol EGP = Exterior Gateway Protocol

OSI Layer 3 – Routing (part2)

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Transcript of OSI Layer 3 – Routing (part2)

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