SUBNETTING

Apa itu subnetting...?
subnetting merupakan rangkaian organisasi di bahagikan kepada subnetwork yg mn membenarkan smbungan ke internet dgn 1 share network address.

Sbb apa perlu subnetting...?
-Kalau ada subnetting,broadcast jd rendah,network performance tinggi,perlanggaran data rendah,data yang dihantar laju & selamat.
-Kalau tak da subnetting broadcast jd tinggi,network performance rendah & penghantaran data tak teratur.

~1 octet 8 bit
~klau kominikasi x leh,check IP..

RUMUS NK CARI SUBNET :
2^n = subnet
dimana n = bil bit 1

RUMUS NK CARI HOST :
2^x = host
dimana x = bil bit 0

cth : 2^4 = 16 host -2
= 14 host
#perlu -2 utk network & broadcast

CONTOH PENGIRAAN...

192.168.5.0/xx ----->11100000
-nk bahagi kpd 7 segmen
Cari :
a) bil host
2^n = 7 2^5 = 32-2
2^3 = 8 = 30 host

b) nilai xx
= 24 + 3
= 27