Analisa Kebutuhan Network !

1. Minimum Devices requirement :
a. 3 Roll BELDEN UTP Cable Cat. 5e/1000ft/305m
b. 1 Roll STP Cat 6 Belden USA/1000ft/305m
c. Multi Mode Fiber Optic Cable 277m
d. Rj45 3 box/100pcs/Supported Cat5e
e. Crimping Tools
f. UTP Tester/Network Cable Tester NS-468
g. 3 Switch 3COM 3CBLSG24PWR Supported FO, 4 Gigabit SFP ports
h. 8 Hub Unmanaged/3COM 3C16471B 24 Ports
i. 1 Cisco Router 2801

2. Menggunakan Subnetting VLSM yang telah kita pelajari di sini, jika di asumsikan kebutuhan jaringan pada setiap Departemen A[100], B[25], C[40], D[13], E[5]
IP 202.15.240.0/20 –> Class B
SM 11111111.11111111.11110000.00000000 –> 255.255.240.0
Jumlah Subnet : 2^4 = 16
Host/Subnet : 2^12-2 = 4094 Hosts
Blok Subnet : 256-240 = 16

IP-Address-begin	IP-Address-end	Total Hosts
202.15.240.0	202.15.240.255	= 255
202.15.241.0	202.15.241.255	= 255
202.15.242.0	202.15.242.255	= 255
202.15.243.0	202.15.243.255	= 255
202.15.244.0	202.15.244.255	= 255
202.15.245.0	202.15.245.255	= 255
202.15.246.0	202.15.246.255	= 255
202.15.247.0	202.15.247.255	= 255
202.15.248.0	202.15.248.255	= 255
202.15.249.0	202.15.249.255	= 255
202.15.250.0	202.15.250.255	= 255
202.15.251.0	202.15.251.255	= 255
202.15.252.0	202.15.252.255	= 255
202.15.253.0	202.15.253.255	= 255
202.15.254.0	202.15.254.255	= 255
202.15.255.0	202.15.255.255	= 255
		4096 Host

1. Menggunakan Subnetting VLSM, jika di asumsikan kebutuhan jaringan pada setiap Departemen, A[100], B[25], C[40], D[13], E[5]

IP202.15.240.0/20àClass B

SM 11111111.11111111.11110000.00000000à255.255.240.0

Jumlah Subnet: 2^4 = 16

Host/Subnet: 2^12-2 = 4094 Hosts

Blok Subnet: 256-240 = 16

Awal = 202.15.240.0/20
255.255.11110000.00000000 => 255.255.240.0

Block Used = 202.15.241.0/21
255.255.11111000.00000000 => 255.255.248.0
IP = 202.15.241.0/21
SM = 255.255.248.0
A [100 Host] = 2^7=128
202.15.241.0 – 202.15.241.127/25 => Used for Dept A
202.15.241.128 – 202.15.241.255/25
C [40 Hosts] = 2^6=64
202.15.241.128 – 202.15.241.191/26 => Used for Dept C
202.15.241.192 – 202.15.241.255/26
B [25 Hosts] = 2^5=32
202.15.241.192 – 202.15.241.223/27 => Used for Dept B
202.15.241.224 – 202.15.241.255/27
D [13 Host] = 2^4=16
202.15.241.224 202.15.241.239/28 => Used for Dept D
202.15.241.240 – 202.15.241.255/28
E [5 Hosts] = 2^3=8
202.15.241.240 – 202.15.241.247/29 => Used for Dept E
202.15.241.248 – 202.15.241.255/29 => Free

3. -> 3 Roll BELDEN UTP Cable Cat. 5e/1000ft/305m : $110 Go to Source…
-> 1 Roll STP Cat 6 Belden USA/1000ft/305m : $198 Go to Source…
-> Rj45 3 box/100pcs/Supported Cat5e : Rp.175.000 Go to Source…
-> Multi Mode Fiber Optic Cable 277m : $2.75/m Go to Source…
-> Crimping Tools : $92 Go to Source…
-> UTP Tester/Network Cable Tester NS-468 : Rp.40.000 Go to Source…
-> 3 Switch 3COM 3CBLSG24PWR Supported FO, 4 Gigabit SFP ports : $889 Go to Source…
-> 8 Hub Unmanaged/3COM 3C16471B 24 Ports: $95 Go to Source…
-> 1 Cisco Router 2801 : $1.995 Go to Source…
Perkiraan 1$ = Rp.9500

Devices	Harga
Kabel UTP : $110×3 = $330xRp.9500	Rp.3.135.000
Kabel STP 1 Roll = $198xRp.9500	Rp.1.881.000
Rj45 3 Box = 3xRp.175.000	Rp.525.000
Kabel FO Multi Mode 277m = $2.75×277= $761.75xRp.9500	Rp.7.236.625
Crimping Tools = $92xRp.9500	Rp.874.000
UTP Cable Tester	Rp.40.000
Switch 3COM SFP Ports : $889xRp.9500	Rp.8.445.500
Hub Unmanaged 3COM : 8x$95 = $760xRp.9500	Rp.7.220.000
Cisco Router 2801 : $1.995xRp.9500	Rp.18.572.500
TOTAL	Rp.47.929.625

4. Analisis
=> Dengan asumsi Hosts di setiap Departemen adalah A[100], B[25], C[40], D[13], E[5]
=> Menggunakan IP Public dengan VLSM untuk efisiensi resources IP.
=> Dengan Estimasi biaya Se-efisien Mungkin dan Minimum Devices requirement untuk bisa UP/terhubung.
=> Routing dari Gedung 2 (B,C) < —- > Gedung 3 (E,D) < —- > Gedung 1 (A).
=> Koneksi antar gedung menggunakan Fiber Optik, koneksi antar switch menggunakan kabel STP cat6 dan koneksi ke klien memakai kabel UTP cat5e dengan Extended STAR Topology.
=> Untuk Koneksi antar gedung bisa juga dengan interkoneksi saja alias menyewa kabel FO jika sudah tersedia tanpa harus membeli kabel FO.
=> Estimasi harga di atas belum termasuk Jasa Instalasi dan Pajak.

Di atas adalah sekelumit perkiraan atau sedikit memberikan gambaran bagaimana membangun sebuah network berdasarkan kebutuhan yang di minta Klien, Beda Klien… beda Perminta

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