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PRIMECLUSTER Global Link Services Configuration and AdministrationGuide 4.7Redundant Line Control Function

B.2.4 Configuring virtual interfaces with tagged VLAN (Logical IP takeover, Synchronous switching)

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

[HOST-A]

1) Setting up the system

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

192.168.70.1    hosta    # HOST-A Virtual IP
192.168.70.10   host71   # HOST-A Physical IP (Tagged VLAN interface)
192.168.80.1    hostb    # HOST-A Virtual IP
192.168.80.10   host81   # HOST-A Physical IP (Tagged VLAN interface)
192.168.70.2    hostc    # HOST-B Virtual IP
192.168.70.20   host72   # HOST-B Physical IP (Tagged VLAN interface)
192.168.80.2    hostd    # HOST-B Virtual IP
192.168.80.20   host82   # HOST-B Physical IP (Tagged VLAN interface)
192.168.70.100  swhub1   # Primary Switch/HUB IP
192.168.70.101  swhub2   # Secondary Switch/HUB IP

2) Reflecting system setting

Run the following command and reload the connection profile. After reloading the profile, verify eth0.1 and eth0.2 are enabled using the ip command.

/usr/bin/nmcli connection reload

3) Setting subnet masks

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.70.0 -m 255.255.255.0
/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.80.0 -m 255.255.255.0

4) Creating virtual interfaces

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 192.168.70.1 -e 192.168.70.10 -t eth0.1,eth1.1
/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha1 -m d -i 192.168.80.1 -e 192.168.80.10 -t eth0.2,eth1.2

Note

Ensure that the physical IP address specified using option '-e' is the same IP address configured in /etc/sysconfig/network-scripts/ifcfg-ethX.Y in RHEL8 or in the "nmcli connection modify" command in RHEL9. In RHEL8 or later, to correct mismatch of IP addresses, GLS automatically rewrites the configuration of the connection profile based on the IP address specified in the GLS command.

5) Setting up the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p 192.168.70.100,192.168.70.101 -b off

6) Setting up the HUB monitoring function (Synchronous switching)

/opt/FJSVhanet/usr/sbin/hanetpoll copy -n sha0,sha1

7) Setting up the Standby patrol monitoring function

Please define only one Standby patrol monitoring function.

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha2 -m p -t sha0

8) Reboot

Run the following command and reboot the system.

/sbin/shutdown -r now

[HOST-B]

1) Setting up the system

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

2) Reflecting system setting

Run the following command and reload the connection profile. After reloading the profile, verify eth0.1 and eth0.2 are enabled using the ip command.

/usr/bin/nmcli connection reload

3) Setting subnet masks

/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.70.0 -m 255.255.255.0
/opt/FJSVhanet/usr/sbin/hanetmask create -i 192.168.80.0 -m 255.255.255.0

4) Creating virtual interfaces

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha0 -m d -i 192.168.70.2 -e 192.168.70.20 -t eth0.1,eth1.1
/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha1 -m d -i 192.168.80.2 -e 192.168.80.20 -t eth0.2,eth1.2

Note

Ensure that the physical IP address specified using option '-e' is the same IP address configured in /etc/sysconfig/network-scripts/ifcfg-ethX.Y in RHEL8 or in the "nmcli connection modify" command in RHEL9. In RHEL8 or later, to correct mismatch of IP addresses, GLS automatically rewrites the configuration of the connection profile based on the IP address specified in the GLS command.

5) Setting up the HUB monitoring function

/opt/FJSVhanet/usr/sbin/hanetpoll create -n sha0 -p 192.168.70.100,192.168.70.101 -b off

6) Setting up the HUB monitoring function (Synchronous switching)

/opt/FJSVhanet/usr/sbin/hanetpoll copy -n sha0,sha1

7) Setting up the Standby patrol monitoring function

Please define only one Standby patrol monitoring function.

/opt/FJSVhanet/usr/sbin/hanetconfig create -n sha2 -m p -t sha0

8) Reboot

Run the following command and reboot the system.

/sbin/shutdown -r now