Creating a cluster in a secure VLAN network

Create a cluster with servers that are found in the same secure VLAN network. Note that it is up to the system administrator to ensure that each VLAN ID is not shared across clusters.

Procedure

Configure the SNMP setting on your network switches. See more on Configuring the SNMP setting on your network switch.

Configure switch connection ports to allow VLAN access across all switches in the VLAN network. For example, assume port 1 on switch1 is connected to port 2 of switch2.

Set up the following configuration on port 1:

RS G8052(config)#interface port 1
RS G8052(config-if)#tagging
WARNING: IP interface 1 and IP interface 48 have overlapped subnets.
RS G8052(config-if)#
RS G8052(config)#show interface information
Alias   Port Tag RMON Lrn Fld PVID       NAME        VLAN(s)
------- ---- --- ---- --- --- ----- -------------- ----------
1       1     y   d    e   e     1                 1
2       2     n   d    e   e     1                 1
3       3     n   d    e   e     1                 1
4       4     n   d    e   e     1                 1
5       5     n   d    e   e     1                 1
6       6     n   d    e   e     1                 1
7       7     n   d    e   e     1                 1

Set up the following configuration on port 2 on switch 2:

RS G8052(config)#interface port 2
RS G8052(config-if)#tagging
WARNING: IP interface 2 and IP interface 48 have overlapped subnets.
RS G8052(config-if)#
RS G8052(config)#show interface information
Alias   Port Tag RMON Lrn Fld PVID       NAME        VLAN(s)
------- ---- --- ---- --- --- ----- -------------- ----------
1       1     n   d    e   e     1                 1
2       2     y   d    e   e     1                 1
3       3     n   d    e   e     1                 1
4       4     n   d    e   e     1                 1
5       5     n   d    e   e     1                 1
6       6     n   d    e   e     1                 1
7       7     n   d    e   e     1                 1

Create a VLAN. For example, create a VLAN with ID 11:

RS G8052(config)#vlan 11

VLAN number 11 with name "VLAN 11" created.
WARNING: IP interface 1 and IP interface 48 have overlapped subnets.

Warning: VLAN 11 was assigned to STG 11.
RS G8052(config-vlan)#enable
WARNING: IP interface 1 and IP interface 48 have overlapped subnets.
RS G8052(config-vlan)#exit
RS G8052(config)#write

Copy running configuration to startup configuration

RS G8052(config)#

Define switches in Platform Cluster Manager Community Edition.
1. Add a switch object into the switches table on the Platform Cluster Manager Community Edition management node with root privilege. The switch object must specify the switch hostname, SNMP version, and authentication information.
```
# tabedit switches
#switch,snmpversion,username,password,privacy,auth,linkports,sshusername,
sshpassword,protocol,switchtype,comments,disable
"switch1","3","pcm","password",,"md5",,,,,,,
"switch2","3","pcm","password",,"md5",,,,,,,
```
2. Add the IP address of the switch to /etc/hosts:
```
# echo "192.168.1.1 switch1" >> /etc/hosts
# echo "192.168.1.2 switch2" >> /etc/hosts
```
Create a node information file that specifies the switches that are used. The node information file must specify the switch name, port number, and network interface.
Note: Both the provisioning NIC and the NIC that belong to the VLAN must be specified. In the case where two NICs are used for a node, ensure that the switch is listed twice in the node information file.
For example:
```
__hostname__:
  switches=eth0!switch1!1,eth1!switch1!2,eth2!switch2!1
```
For more examples, see more on the Node information file.
Using the node information that is created in the previous step, import nodes into the system. See more on Adding nodes using a node information file.
Note: Nodes that are added to the system, are only available to use after provisioning is completed.
Create a secure VLAN network in the Web Portal. Make sure to define the VLAN ID as specified in step 3. See more on Adding an IP pool.
Define a network profile that uses the newly created secure VLAN network. See more on Adding a network profile. Make sure that the VLAN network is associated to one ore more of the non-provisioning interfaces to which the VLAN is configured to.
Create a cluster template that uses the secure VLAN network. The cluster template must use a network profile that specifies the secure VLAN network. See more on Creating a cluster template for a secure VLAN network.
Publish the cluster template to make it available for use. See more on Publishing a cluster template.
Finally, create the cluster from the published cluster template. See more on Publishing a cluster template.

Results

After the cluster is created, the network interfaces of the servers are configured with the VLAN IP address based on VLAN network profile settings. All servers are placed into the same VLAN and are now accessible through the VLAN interface.

What to do next

To verify your configuration, see more on Verifying that your cluster is in a secure VLAN network.