network with two levels of hierarchy 41.14.0.1141.14.0.2 14.192.2 141.14.255.254141.14.255.25 Network:141.14.0.0 141.14.2014 RI To the rest the internet CSIE NTUT TANAN Figure 5-1
CSIE, NTUT, TAIWAN 6 Figure 5-1 network with two levels of hierarchy
network with three levels of hierarchy (subnetted) 141.14.0.1141.140.2 141.4.63.254141.14641141.14642 141.14.127.254 Subnet 141.14.88.9 Subnet 141.14.0.0 141.14.64.0 141.14.192.1141.14.192.2 2∞N- 1411425254141.14128114114.128214114191254 Subnet Subnet 141.14.192.0 141.14.128.0 RI Site:141.14.0.0 To the rest of the Internet VAN
CSIE, NTUT, TAIWAN 7 Figure 5-2 network with three levels of hierarchy (subnetted)
Addresses in a network with and without subnetting 141 14 192 Netid Hostid a. Without subnetting 141 14 192 192 Site Subnetid Hostid b. With subnetting CSIE NTUT TANAN 5-3
CSIE, NTUT, TAIWAN 8 Figure 5-3 Addresses in a network with and without subnetting
Hierarchy concept in a telephone number 408 864 8902 Area code Exchange Connection CSIE NTUT TANAN Figure 5-4
CSIE, NTUT, TAIWAN 9 Figure 5-4 Hierarchy concept in a telephone number
Subnet mask Network mask(default mask) creates the network address. subnet mask creates the subnetwork address Contiguous V.S. noncontiguous subnet mask Finding the subnet address Straight method Short-cut method CSIE NTUT TANAN
CSIE, NTUT, TAIWAN 10 Subnet Mask • Network mask (default mask) creates the network address; subnet mask creates the subnetwork address • Contiguous v.s. noncontiguous subnet mask • Finding the subnet address – Straight Method – Short-cut method