B.1.2 Example of the Single system in Logical virtual interface

This section describes an example configuration procedure of the network shown in the diagram below.

For the network configuration other than GLS, refer to "3.2.2 Network configuration".

[HOST-A]

1) Setting up the system

1-1) Define IP addresses and hostnames in the /etc/hosts file.

192.168.70.1    host11  # HOST-A Physical IP
192.168.71.1    host12  # HOST-A Physical IP
192.168.80.1    hosta   # HOST-A Virtual IP
192.168.80.3    hosta1  # HOST-A Logical virtual IP 
192.168.70.2    host21  # HOST-B Physical IP
192.168.71.2    host22  # HOST-B Physical IP
192.168.80.2    hostb   # HOST-B Virtual IP

1-2) Configure the /etc/sysconfig/network-scripts/ifcfg-ethX (X is 0,1) file as follows.

For RHEL7

Contents of /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.70.1
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

Contents of /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.71.1
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

For RHEL8 or later

Contents of /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=none
IPADDR=192.168.70.1
PREFIX=24
ONBOOT=yes
TYPE=Ethernet

Contents of /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
BOOTPROTO=none
IPADDR=192.168.71.1
PREFIX=24
ONBOOT=yes
TYPE=Ethernet

2) Reflecting system setting

For RHEL7
Run the following command to reboot the system. After rebooting the system, verify eth0 and eth1 are active using the ip command.
```
/sbin/shutdown -r now
```

For RHEL8 or later

Run the following commands to reload the connection profiles. After reloading the profiles, verify eth0 and eth1 are active using the ip command.

/usr/bin/nmcli connection reload
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth0
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth1

3) Setting a subnet mask

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.80.0 -m 255.255.255.0

4) Creating a virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m t -i 192.168.80.1 -t eth0,eth1

5) Creating a logical virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0:2 -i 192.168.80.3

For RHEL7

6) Activating the virtual interface and the logical virtual interface

/opt/FJSVhanet/usr/sbin/strhanet

For RHEL8 or later

6) Reboot

Run the following command to reboot the system.

/sbin/shutdown -r now

[HOST-B]

1) Setting up the system

1-1) Define IP addresses and hostnames in the /etc/hosts file. Defined content is same as HOST-A.

1-2) Configure the /etc/sysconfig/network-scripts/ifcfg-ethX (X is 0,1) file as follows.

For RHEL7

Contents of /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.70.2
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

Contents of /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
BOOTPROTO=static
HOTPLUG=no
IPADDR=192.168.71.2
NETMASK=255.255.255.0
ONBOOT=yes
TYPE=Ethernet

For RHEL8 or later

Contents of /etc/sysconfig/network-scripts/ifcfg-eth0

DEVICE=eth0
BOOTPROTO=none
IPADDR=192.168.70.2
PREFIX=24
ONBOOT=yes
TYPE=Ethernet

Contents of /etc/sysconfig/network-scripts/ifcfg-eth1

DEVICE=eth1
BOOTPROTO=none
IPADDR=192.168.71.2
PREFIX=24
ONBOOT=yes
TYPE=Ethernet

2) Reflecting system setting

For RHEL7
Run the following command to reboot the system. After rebooting the system, verify eth0 and eth1 are active using the ip command.
```
/sbin/shutdown -r now
```

For RHEL8 or later

Run the following commands to reload the connection profiles. After reloading the profiles, verify eth0 and eth1 are active using the ip command.

/usr/bin/nmcli connection reload
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth0
/usr/bin/nmcli connection up filename /etc/sysconfig/network-scripts/ifcfg-eth1

3) Setting a subnet mask

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.80.0 -m 255.255.255.0

4) Creating a virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m t -i 192.168.80.2 -t eth0,eth1

For RHEL7

5) Activating the virtual interface

/opt/FJSVhanet/usr/sbin/strhanet

For RHEL8 or later

5) Reboot

Run the following command to reboot the system.

/sbin/shutdown -r now