Chapter 1 Ip Address Configuration; Ip Address Overview; Ip Address Classification And Representation - H3C S7500 Series Operation Manual

Operation Manual – IP Address-IP Performance-IPX
H3C S7500 Series Ethernet Switches

Chapter 1 IP Address Configuration

When configuring IP address, go to these sections for information you are interested in:

IP Address Overview

Configuring IP Address(es) for a VLAN Interface
Displaying and Maintaining IP Address Configuration
IP Address Configuration Example
Troubleshooting IP Address Configuration
1.1 IP Address Overview

1.1.1 IP Address Classification and Representation

An IP address is a 32-bit address allocated to a device connected to the Internet. It
consists of two fields: net-id and host-id. To facilitate IP address management, IP
addresses are divided into five classes, as shown in
Class A Class A
Class B Class B
Class C Class C
Class D Class D
Class E Class E
Figure 1-1 Five classes of IP addresse
Class A, Class B, and Class C IP addresses are unicast addresses. Class D IP
addresses are multicast addresses and Class E addresses are reserved for future
special use. The first three types are commonly used.
IP addresses are in the dotted decimal notation. Each IP address contains four decimal
integers (separated from each other using "."), with each integer corresponding to one
byte (for example, 10.110.50.101).
0 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9
ne t-id ne t-id
0 0
n et-id n et-id
1 0 1 0
1 1 0 1 1 0
1 1 1 0 1 1 1 0
Mul ticas t a ddress Mul ticas t a ddress
1 1 1 1 0 1 1 1 1 0 Rese rved add ress Rese rved add ress
n et-i d: Netwo rk ID; h os t-i d: Host ID n et-i d: Netwo rk ID; h os t-i d: Host ID
Chapter 1 IP Address Configuration
Figure
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
host-id host-id
net-id net-id
s
1-1
1-1.
host-id host-id
host- id host- id