3com V7300 ユーザーズマニュアル

C

HAPTER

 1: I

NITIAL

 C

ONFIGURATION

3Com recommends that you define the IP configuration using the 

/etc/hosts

 files on the two systems.

The 

/etc/hosts

 file on each server must contain identical information 

about the Intelligent Mirroring configuration. Other information in the 
file may vary. The examples in this document contain the information 
that must be identical.

For each network to which Intelligent Mirroring is connected, you 
must configure four unique IP addresses, all on the same subnetwork:

■

Two of these addresses are static and are assigned to the primary 
network interface cards on the two systems.

■

The other two IP addresses are aliases that are dynamically assigned 
based on the state (active versus standby) of the Intelligent Mirroring 
servers. These addresses are not associated with any hardware.

To configure both the Primary and Secondary servers on a single network, 
follow the instructions in this section. For the instructions on how to 
configure the servers on two networks, see 

3Com recommends that you configure the systems on which 
Intelligent Mirroring runs so that each one is connected to two 
independent networks on separate switches. This provides additional 
reliability should problems develop on either network (for example, if 
a switch fails). See 

.

The examples in this section are based on these assumptions:

■

System Name — voipbox1

■

IP Address (subnetwork 126) — 192.168.126.1 (associated with 
the primary network interface on the Primary Server)

■

System Name — voipbox2

■

IP Address (subnetwork 126) — 192.168.126.2 (associated with 
the primary network interface on the Secondary Server)