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Manual Chapter: Web Hosting for Multiple Customers
Manual Chapter
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You can use the BIG-IP® system to load balance and provide hosting services for multiple customers.
In this example, the BIG-IP system has an interface (5.1) assigned to three VLANs on a network. The three VLANs are vlanA, vlanB, and vlanC. Interface 5.1 processes traffic for all three VLANs. Note that each VLAN contains two servers, and serves a specific customer.
Create VLANs with tagged interfaces.
For more information on tagged interfaces, see the BIG-IP® Network and System Management Guide.
Create load balancing pools.
Create three pools of web servers, one pool for each VLAN, to which you want to load balance traffic.
Create virtual servers.
Create three virtual servers that load balance traffic to the pools of web servers.
The first task in configuring the BIG-IP system for multiple-customer hosting is creating VLANs with tagged interfaces. In this procedure, you assign the same interface to each VLAN that you create, and you assign the interface as a tagged interface. (For more information on tagged interfaces, see the BIG-IP® Network and System Management Guide.)
For example, in Figure 5.1, there are three VLANs, where each VLAN processes traffic for a different subnet. Thus, vlanA processes traffic for the 10.1.1 subnet, vlanB, processes traffic for the 10.1.2 subnet, and vlanC processes traffic for the 10.1.3 subnet. The interface assigned to all three VLANs is 5.1.
1.
On the Main tab of the navigation pane, expand Network, and click VLANs.
The VLAN screen opens.
2.
In the upper-right corner of the screen, click Create.
This displays the settings to configure for the VLAN.
Note: If the Create button is unavailable, this indicates that your user role does not grant you permission to create a VLAN.
3.
Type the VLAN name and tag number.
If you do not provide a tag number, the BIG-IP system automatically generates a number. In Figure 5.1, an example of a VLAN name and tag number is vlanA, with a tag number of 0001.
4.
For the Interfaces setting, from the Available box select the name of an interface on your internal network, and click the Move button (<<) to move the interface name to the Tagged box.
This assigns the selected interface to the VLAN, as a tagged interface. In our example, the interface is 5.1.
5.
Click Finished.
After you create the VLANs for the BIG-IP system, create three load balancing pools, one for each VLAN. In Figure 5.1, each pool has two pool members.
1.
On the Main tab of the navigation pane, expand Local Traffic, and click Pools.
The Pools screen opens.
2.
In the upper-right corner of the screen, click Create.
The New Pool screen opens.
Note: If the Create button is unavailable, this indicates that your user role does not grant you permission to create a pool.
3.
In the Name box, type a name for the pool, such as customerA_pool.
4.
In the Resources area of the screen, use the New Members setting to add the pool members.
For example, in Figure 5.1, the pool members for vlanA are 10.1.1.1:80 and 10.1.1.2:80. The pool members for vlanB are 10.1.2.1:80 and 10.1.2.2:80, and the pool members for vlanC are 10.1.3.1:80 and 10.1.3.2:80.
5.
Click Finished.
1.
On the Main tab of the navigation pane, expand Local Traffic, and click Virtual Servers.
The Virtual Servers screen opens.
2.
In the upper-right corner of the screen, click Create.
The New Virtual Server screen opens.
Note: If the Create button is unavailable, this indicates that your user role does not grant you permission to create a virtual server.
3.
In the Name box, type a name for the virtual server, such as vs_customerA.
4.
In the Destination box, verify that the type of virtual server is Host, and in the Address box, type an IP address for the virtual server, such as 10.1.10.10:80.
5.
In the Service Port box, type 80, or select HTTP from the list.
6.
In the Configuration area of the screen, locate the HTTP Profile setting and select http.
7.
In the Resources area of the screen, locate the Default Pool setting and select the pool corresponding to the virtual server you are creating.
For example, for vs_customerA, you would select the pool customerA_pool. For vs_customerB, you would select the pool customerB_pool, and so on.
8.
Click Finished.
The configuration shown in Figure 5.1, uses an external switch between the BIG-IP system and the server nodes. However, another way to implement this solution is to remove the external switch, and instead use multiple interfaces on the BIG-IP system to directly host traffic for multiple customers. With this scenario, it is still necessary to configure the VLANs, but you must configure them with untagged instead of tagged interfaces. Figure 5.2 shows an example of this scenario.
In Figure 5.2, two BIG-IP system interfaces are assigned to each VLAN. For example, interfaces 1.1 and 1.2 are assigned to the vlanA VLAN. Each interface is assigned to a VLAN as an untagged interface.
The first scenario, shown in Figure 5.1, requires an additional switch, but requires the use of only one interface on the internal network. The second scenario, shown in Figure 5.2, removes the need for an additional switch, but requires the use of multiple BIG-IP system interfaces.
The first task in configuring the BIG-IP system for directly hosting multiple customers is to create VLANs, adding untagged interfaces to them. (For more information on tagged interfaces, see the BIG-IP® Network and System Management Guide.)
1.
On the Main tab of the navigation pane, expand Network, and click VLANs.
The VLAN screen opens.
2.
In the upper-right corner of the screen, click Create.
This displays the settings to configure for the VLAN.
Note: If the Create button is unavailable, this indicates that your user role does not grant you permission to create a VLAN.
3.
Enter the VLAN name and tag number.
If you do not provide a tag number, the BIG-IP system automatically generates a number. In Figure 5.2, an example of a VLAN name and tag number is vlanA, with a tag number of 0001.
4.
For the Interfaces setting, from the Available box select the name of an interface on your internal network, and click the Move button (>>) to move the interface name to the Untagged box.
This assigns the selected interface to the VLAN, as an untagged interface. In Figure 5.2, vlanA as interfaces 1.1 and 1.2 assigned to it. vlanB has interfaces 1.3 and 1.4 assigned to it, and vlanC has interfaces 1.5 and 1.6 assigned to it.
5.
Click Finished.
Once you have created your VLANs and assigned untagged interfaces to them, you can create the pools and virtual servers, just as you did in the section Hosting multiple customers using an external switch.
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