OSPF ( Open Shortest Path First )

Mengenal apa itu OSPF

OSPF merupakan salah satu protokol routing yang menggunakan alogoritma Shortest Path First (SPF). OSPF Terbagi menjadi area - area dan autonomous systems (AS). Meminimalkan routing update traffic, sehingga menurunkan routing overhead. Allows scalability, Supports VLSM/CIDR, Unlimited hop count, Open Standard / multi-vendor deploymen.

Topologi

Buat topologi seperti berikut:

Konfigurasi Ip address

Router0

Router(config)#interface fa0/0

Router(config-if)#ip address 10.10.10.1 255.255.255.0

Router(config-if)#no shutdown

Router(config-if)#interface se0/0/0

Router(config-if)#ip address 10.20.30.1 255.255.255.252

Router(config-if)#no shutdown

Router1

Router(config)#interface se0/0/0

Router(config-if)#ip address 10.20.30.2 255.255.255.252

Router(config-if)#no shutdown

Router(config-if)#interface fa0/0

Router(config-if)#ip address 10.20.20.1 255.255.255.0

Router(config-if)#no shutdown

Router(config-if)#interface se0/0/0

Router(config-if)#ip address 10.20.30.13 255.255.255.252

Router(config-if)#no shutdown

Router2

Router(config)#interface se0/0/0

Router(config-if)#ip address 10.20.30.14 255.255.255.252

Router(config-if)#no shutdown

Router(config-if)#interface fa0/0

Router(config-if)#ip address 10.30.30.1 255.255.255.0

Router(config-if)#no shutdown

Konfigurasi PC

PC0

ip : 10.10.10.2

netmask : 255.255.255.0

gateway : 10.10.10.1

PC1

ip : 10.20.20.2

netmask : 255.255.255.0

gateway : 10.20.20.1

PC0

ip : 10.30.30.2

netmask : 255.255.255.0

gateway : 10.30.30.1

Konfigurasi Routing

Router0

Router(config)#router ospf 10

Router(config-router)#network 10.10.10.0 0.0.0.255 area 0

Router(config-router)#network 10.20.30.0 0.0.0.3 area 0

Router1

Router(config)#router ospf 10

Router(config-router)#network 10.20.30.0 0.0.0.3 area 0

Router(config-router)#network 10.20.20.0 0.0.0.255 area 0

Router(config-router)#network 10.20.30.12 0.0.0.3 area 0

Router2

Router(config)#router ospf 10

Router(config-router)#network 10.20.30.12 0.0.0.3 area 0

Router(config-router)#network 10.30.30.0 0.0.0.255 area 0

Verifikasi

Ping antara PC0 ke PC1

Ping antara PC1 ke PC2

Ping antara PC0 ke PC2

Status Route

Router#show ip route

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

* - candidate default, U - per-user static route, o - ODR

P - periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks

O 10.10.10.0/24 [110/65] via 10.20.30.1, 00:05:53, Serial0/0/0

C 10.20.20.0/24 is directly connected, FastEthernet0/0

C 10.20.30.0/30 is directly connected, Serial0/0/0

C 10.20.30.12/30 is directly connected, Serial0/0/1

O 10.30.30.0/24 [110/65] via 10.20.30.14, 00:03:19, Serial0/0/1

Router#

C - Connected = routing yang otomatis ada ketika jaringan dihubungkan ke router.

O - OSPF = routing yang menggunakan protokol ospf 

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Menghubungkan VOIP dan Analog 1 Router 6 Client

Perangkat

1 Router 2811 

1 Switch 2950-24

3 IP Phone

3 VoIP Device

3 Analog Phone

Network : 192.168.50.0

Dial Number : 0857881001-0857881006

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SIstem Selular

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Link Budget Deployment FTTH

Tabel : Link Budget GPON

No.	Uraian		Satuan	Standart Redaman (dB)	Volume	Total Redaman (dB)
1.	Kabel FO		km	0.35	17	5.95
2.	Splitter	1:2	bh	3.70
		1:4	bh	7.25	1	7.25
		1:8	bh	10.38	1	10.38
		1:16	bh	14.10
		1:32	bh	17.45
3	Konektor	SC/UPC	bh	0.25	5	1.25
		SC/APC*	bh	0.35	2	0.7
4	Sambungan	Di Kabel Feeder	bh	0.10	8	0.8
		Di Kabel Distribusi	bh	0.10	2	0.2
		Di Drop Kabel	bh	0.10	2	0.2
Total Redaman Murni						26.73
Total Redaman + Toleransi						28

Nilai standart redaman fiber optic berkisar antara -8 dBm hingga -25 dBM dan nilai redaman terbaik berkisar antara -17dBm hingga -21dBm. Apabila nilai redaman fiber optic kalian selain yang disebutkan diatas maka biasanya akan terjadi

1. Dibawah -17 akan menyebabkan modem epon/gpon/xpon cepat panas
2. Diatara -21 hingga -25 koneksi akan lambat
3. Diatas -25 koneksi loss atau tidak adanya koneksi internet.

3 Hal diatas disebabkan, karena ONU/ONT dan OLT memiliki toleransi yang berbeda disaat kita melakukan pengukuran menggunakan Optical Power Meter (OPM).

Contoh Kasus :

Sinyal optik memiliki daya awal sebesar -5dBm Sinyal tersebut melewati :

Kabel Fiber Optik sepanjang 1Km

2 Sambungan Splice

2 Connector

1 Splitter 1:8

Pertanyaan :

Berapa daya sinyal yang diterima di ujung akhir?

Berara Jumlah Loss nya?

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RIP ( Routing Information Protokol )

Mengenal apa itu RIP

RIP atau Routing Information Protokol merupakan sebuah metode routing secara dinamik. Routing ini adalah salah satu yang tertua dari yang lain. Routing ini menggunakan protokol Distance-vector routing dimana menerapkan hop sebagai Matrik routing.

Topologi

Buat topologi seperti gambar dibawah ini.

Konfigurasi IP Address

R1

R1(config)#interface fa0/0

R1(config-if)#ip address 10.10.10.1 255.255.255.0

R1(config-if)#no shutdown

R1(config-if)#exit

R1(config)#interface se0/0/0

R1(config-if)#ip address 10.20.30.1 255.255.255.252

R1(config-if)#no shutdown

R2

R2(config)#interface se0/0/0

R2(config-if)#ip address 10.20.30.2 255.255.255.252

R2(config-if)#no shutdown

R2(config-if)#interface fa0/0

R2(config-if)#ip address 10.20.20.1 255.255.255.0

R2(config-if)#no shutdown

R2(config-if)#interface se0/0/1

R2(config-if)#ip address 10.20.30.5 255.255.255.252

R2(config-if)#no shutdown

R3

R3(config)#interface se0/0/0

R3(config-if)#ip address 10.20.30.6 255.255.255.252

R3(config-if)#no shutdown

R3(config-if)#interface fa0/0

R3(config-if)#ip address 10.30.30.1 255.255.255.0

R3(config-if)#no shutdown

Konfigurasi PC

PC0

address : 10.10.10.2

netmask : 255.255.255.0

gateway : 10.10.10.1

PC1

address : 10.20.20.2

netmask : 255.255.255.0

gateway : 10.20.20.1

PC2

address : 10.30.30.2

netmask : 255.255.255.0

gateway : 10.30.30.1

 

Konfigurasi Routing

R1

R1(config)#router rip

R1(config-router)#ver 2

R1(config-router)#network 10.10.10.0

R1(config-router)#network 10.20.30.0

R2

R2(config)#router rip

R2(config-router)#ver 2

R2(config-router)#network 10.20.30.0

R2(config-router)#network 10.20.20.0

R2(config-router)#network 10.20.30.4

  R3

R3(config)#router rip

R3(config-router)#ver 2

R3(config-router)#network 10.20.30.4

R3(config-router)#network 10.30.30.0

Verifikasi

Ping antara PC0 ke PC1

Ping antara PC1 ke PC2

Ping antara PC0 ke PC2

Status route

R1#show ip route

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

* - candidate default, U - per-user static route, o - ODR

P - periodic downloaded static route

Gateway of last resort is not set

10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks

C 10.10.10.0/24 is directly connected, FastEthernet0/0

R 10.20.20.0/24 [120/1] via 10.20.30.2, 00:00:28, Serial0/0/0

C 10.20.30.0/30 is directly connected, Serial0/0/0

R 10.20.30.4/30 [120/1] via 10.20.30.2, 00:00:28, Serial0/0/0

R 10.30.30.0/24 [120/2] via 10.20.30.2, 00:00:28, Serial0/0/0

R1#

C - Connected = routing yang otomatis ada ketika jaringan dihubungkan ke router.

R - RIP = Routing dengan protokol RIP

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