PRIMECLUSTER Global Link Services Configuration and Administration Guide: Redundant Line Control Function 4.2 (for Linux)
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Appendix B Examples of configuring system environments> B.2 Example of configuring Fast switching mode (IPv6)

B.2.3 Configuring virtual interfaces with tagged VLAN

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

The xx, yy and zz in the figure below are assigned automatically by the automatic address configuration.

[HOST-A]

1) Setting up the system

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

In example (/etc/sysconfig/network-scripts/ifcfg-ethX) of setting the following, operating system is an example of RHEL4. Please refer to "3.2.2 Network configuration" for the setting examples other than RHEL4.

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

DEVICE=eth0
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet

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

DEVICE=eth1
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet

1-2) Configure /etc/sysconfig/network-scripts/ifcfg-ethX.Y (X is 0,1. Y is 3,4,5,6) file as follows.

- Contents of /etc/sysconfig/network-scripts/ifcfg-eth0.3

DEVICE=eth0.3
BOOTPROTO=static
ONBOOT=yes

- Contents of /etc/sysconfig/network-scripts/ifcfg-eth1.4

DEVICE=eth1.4
BOOTPROTO=static
ONBOOT=yes

- Contents of /etc/sysconfig/network-scripts/ifcfg-eth0.5

DEVICE=eth0.5
BOOTPROTO=static
ONBOOT=yes

- Contents of /etc/sysconfig/network-scripts/ifcfg-eth1.6

DEVICE=eth1.6
BOOTPROTO=static
ONBOOT=yes

1-3) When the system is RHEL, on /etc/sysconfig/network file, define a statement allows the system to load IPv6 module.

NETWORKING=yes
NETWORKING_IPV6=yes
IPV6TO4INIT=no
VLAN=yes

2) Reboot

Run the following command to reboot the system. After rebooting the system, verify eth0.3, eth0.5, eth1.4 and eth1.6 are active using ifconfig command.

/sbin/shutdown -r now

3) Creating of virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create inet6 -n sha0 -m t -t eth0.3,eth1.4
/opt/FJSVhanet/usr/sbin/hanetconfig create inet6 -n sha1 -m t -t eth0.5,eth1.6

4) Setting up IPv6 routers

Create /etc/radvd.conf file and set the followings.

interface sha0
{
        AdvSendAdvert on;          # Sending router advertisements
        MinRtrAdvInterval 3;
        MaxRtrAdvInterval 10;
        prefix fec0:1::0/64        # Sending Prefix fec0:1::0/64 from sha0
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr on;
        };
};
interface sha1
{
        AdvSendAdvert on;          # Sending router advertisements
        MinRtrAdvInterval 3;
        MaxRtrAdvInterval 10;
        prefix fec0:2::0/64        # Sending Prefix fec0:2::0/64 from sha1
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr on;
        };
};

In the server that runs Fast switching mode, configure two or more router as IPv6 router. If the IPv6 router breaks down, it cannot use site-local address to communicate.
To prevent this, it is recommended to setup at least two IPv6 routers.
Depending on the version of radvd, kernel parameter(net.ipv6.conf.all.forwarding=1) must be defined in /etc/sysctl.conf file.
For details on /etc/radvd.conf, refer to the radvd.conf(5), radvd(8) manual. In addition, when a system is SLES, please define a /etc/sysconfig/sysctl file as follows.

5) Reboot

Run the following command and reboot the system.

/sbin/shutdown -r now

[HOST-B]

1) Setting up the system

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

In example (/etc/sysconfig/network-scripts/ifcfg-ethX) of setting the following, operating system is an example of RHEL4. Please refer to "3.2.2 Network configuration" for the setting examples other than RHEL4.

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

DEVICE=eth0
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet

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

DEVICE=eth1
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet

1-2) When the system is RHEL, on /etc/sysconfig/network file, define a statement allows the system to load IPv6 module.

NETWORKING=yes
NETWORKING_IPV6=yes
IPV6TO4INIT=no

2) Reboot

Run the following command to reboot the system. After rebooting the system, verify eth0 and eth1 are active using ifconfig command.

/sbin/shutdown -r now

3) Creating of virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create inet6 -n sha0 -m t -t eth0,eth1

4) Setting up IPv6 routers

Create /etc/radvd.conf file and set the followings.

interface sha0
{
        AdvSendAdvert on;          # Sending router advertisements
        MinRtrAdvInterval 3;
        MaxRtrAdvInterval 10;
        prefix fec0:1::0/64        # Sending Prefix fec0:1::0/64 from sha0
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr on;
        };
};

5) Reboot

Run the following command and reboot the system.

/sbin/shutdown -r now

[HOST-C]

1) Setting up the system

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

In example (/etc/sysconfig/network-scripts/ifcfg-ethX) of setting the following, operating system is an example of RHEL4. Please refer to "3.2.2 Network configuration" for the setting examples other than RHEL4.

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

DEVICE=eth0
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet

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

DEVICE=eth1
BOOTPROTO=static
HWADDR=XX:XX:XX:XX:XX:XX
HOTPLUG=no
ONBOOT=yes
TYPE=Ethernet

1-2) When the system is RHEL, on /etc/sysconfig/network file, define a statement allows the system to load IPv6 module.

NETWORKING=yes
NETWORKING_IPV6=yes
IPV6TO4INIT=no

2) Reboot

Run the following command to reboot the system. After rebooting the system, verify eth0 and eth1 are active using ifconfig command.

/sbin/shutdown -r now

3) Creating of virtual interface

/opt/FJSVhanet/usr/sbin/hanetconfig create inet6 -n sha0 -m t -t eth0,eth1

4) Setting up IPv6 routers

Create /etc/radvd.conf file and set the followings.

interface sha0
{
        AdvSendAdvert on;          # Sending router advertisements
        MinRtrAdvInterval 3;
        MaxRtrAdvInterval 10;
        prefix fec0:2::0/64        # Sending Prefix fec0:2::0/64 from sha0
        {
                AdvOnLink on;
                AdvAutonomous on;
                AdvRouterAddr on;
        };
};

5) Reboot

Run the following command and reboot the system.

/sbin/shutdown -r now

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