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Manual Chapter: Configuring GTM on a Network with One Route Domain
Manual Chapter
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Overview: How do I deploy BIG-IP GTM on a network with one route domain?

You can deploy BIG-IP Global Traffic Manager (GTM) on a network where BIG-IP Local Traffic Manager (LTM) is configured with one route domain and no overlapping IP addresses.

CAUTION:
F5 Networks does not support the configuration of route domains on a standalone BIG-IP GTM.
BIG-IP GTM deployed on a network in front of a BIG-IP LTM configured with a route           domain BIG-IP GTM deployed on a network in front of a BIG-IP LTM configured with a route domain

Task summary

BIG-IP GTM can gather status and statistics for the virtual servers hosted on BIG-IP Local Traffic Manager (LTM) systems on your network that are configured on a route domain. The BIG-IP LTM systems must contain:

  • VLANs through which traffic for the route domain passes.
  • A self IP address that represents the address space of the route domain.

Additionally, BIG-IP GTM must contain a server object for each route domain. The server objects must be configured with a self IP address that represents the address space of the route domain.

Perform the specified tasks to configure BIG-IP LTM systems with a route domain, and then to configure BIG-IP GTM to be able to monitor these systems.

Creating VLANs for a route domain on BIG-IP LTM

You need to create two VLANs on BIG-IP Local Traffic Manager(LTM) through which traffic can pass to a route domain.
  1. On the Main tab, click Network > VLANs. The VLAN List screen opens.
  2. Click Create. The New VLAN screen opens.
  3. In the Name field, type external.
  4. In the Tag field, type a numeric tag, from 1 to 4094, for the VLAN. Leave the field blank if you want the BIG-IP system to automatically assign a VLAN tag. The VLAN tag identifies the traffic from hosts in the associated VLAN.
  5. For the Interfaces setting, in the Available list, click an interface number or trunk name and add the selected interface or trunk to the Untagged list. Repeat this step as necessary.
  6. Select the Source Check check box if you want the system to verify that the return route to an initial packet is the same VLAN from which the packet originated.
  7. Click Finished. The screen refreshes, and displays the new VLAN in the list.
Repeat this procedure, but in Step 3, name the VLAN internal.

Creating a route domain on BIG-IP LTM

Ensure that an external and internal VLAN exist on BIG-IP LTM, before you create a route domain.
You can create a route domain on BIG-IP LTM to segment (isolate) network traffic on your network.
  1. On the Main tab, click Network > Route Domains. The Route Domain List screen opens.
  2. Click Create. The New Route Domain screen opens.
  3. Type an ID number for the route domain. This is the ID number that you will append later to any relevant IP addresses that you create on the BIG-IP system, such as virtual addresses, pool member addresses, and self IP addresses.
  4. In the Description field, type a description of the route domain. This route domain applies to traffic for application MyApp.
  5. In the Strict Isolation area, select the Enabled check box to restrict traffic in this route domain from crossing into another route domain.
  6. From the Parent Name list, retain the default value.
  7. For the VLANs setting, move the external and internal VLANs from the Available list, to the Members list.
  8. From the Partition Default Route Domain list, select Make this route domain the Partition Default Route Domain. With this setting, you can designate this route domain to be the default route domain for the current administrative partition.
  9. Click Finished. The system displays a list of route domains on the BIG-IP system.

Creating a self IP address for a route domain on BIG-IP LTM

Ensure that external and internal VLANs exist on BIG-IP LTM, before you begin creating a self IP address for a route domain.
Create a self IP address on BIG-IP LTM that resides in the address space of the route domain.
  1. On the Main tab, click Network > Self IPs. The Self IPs screen opens.
  2. Click Create. The New Self IP screen opens.
  3. In the IP Address field, type an IP address. This IP address must represent a self IP address in a route domain. Use the format x.x.x.x%n, where n is the route domain ID, for example, 10.1.1.1%1. The system accepts IP addresses in both the IPv4 and IPv6 formats.
  4. In the Netmask field, type the network mask for the specified IP address.
  5. From the VLAN/Tunnel list, select external.
  6. From the Port Lockdown list, select Allow Default.
  7. Click Finished. The screen refreshes, and displays the new self IP address in the list.
Repeat this procedure, but in Step 5, select VLAN internal.

Defining a server for a route domain on BIG-IP GTM

On a BIG-IP GTM system, define a server that represents the route domain.
  1. On the Main tab, click Global Traffic > Servers. The Server List screen opens.
  2. Click Create. The New Server screen opens.
  3. In the Name field, type a name for the server. Names must begin with a letter, and can contain only letters, numbers, and the underscore (_) character.
    Important: Server names are limited to 63 characters.
  4. From the Product list, select either BIG-IP System (Single) or BIG-IP System (Redundant). The server type determines the metrics that the system can collect from the server.
  5. In the Address List area, add the self IP address that you assigned to the VLAN that you assigned to the route domain.
    Important: Do not include the route domain ID in this IP address. Use the format x.x.x.x, for example, 10.10.10.1.
  6. From the Data Center list, select the data center where the server resides.
  7. In the Health Monitors area, assign the bigip monitor to the server by moving it from the Available list to the Selected list.
  8. From the Virtual Server Discovery list, select how you want virtual servers to be added to the system. Virtual server discovery is supported when you have only one route domain.
    Option Description
    Disabled Use this option when you plan to manually add virtual servers to the system.
    Enabled The system automatically adds virtual servers using the discovery feature.
    Enabled (No Delete) The system uses the discovery feature and does not delete any virtual servers that already exist.
  9. Click Create. The Server List screen opens displaying the new server in the list.

Implementation results

You now have an implementation in which BIG-IP GTM can monitor virtual servers on BIG-IP LTM systems configured with one route domain.

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