Manual Chapter : Managing GTP Traffic

Applies To:

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BIG-IP LTM

  • 13.1.0, 13.0.1, 13.0.0
Manual Chapter

About GTP profiles

You can create a GPRS Tunneling Protocol (GTP) profile type on the BIG-IP® system to manage Global System for Mobile Communication (GSM), Universal Mobile Telecommunications System (UMTS), and latterly Long-Term Evolution (LTE) subscriber traffic across User Datagram Protocol (UDP) connections. The BIG-IP system supports GTP versions 1 and 2 on UDP connections. When configuring the GTP profile, you can specify the maximum number of messages held in the GTP ingress queue.

Overview: Managing GTP traffic

The BIG-IP® system enables you to manage GTP traffic by configuring the GTP profile for use with a pool and virtual server. When using the GTP profile, you can specify the maximum number of messages held in the GTP ingress queue.

Task summary

Creating a pool

You can create a pool of servers that you can group together to receive and process traffic.
  1. On the Main tab, click Local Traffic > Pools .
    The Pool List screen opens.
  2. Click Create.
    The New Pool screen opens.
  3. In the Name field, type a unique name for the pool.
  4. Using the New Members setting, add each resource that you want to include in the pool:
    1. (Optional) In the Node Name field, type a name for the node portion of the pool member.
    2. In the Address field, type an IP address.
    3. In the Service Port field, type a port number, or select a service name from the list.
    4. (Optional) In the Priority field, type a priority number.
    5. Click Add.
  5. Click Finished.
  6. Repeat these steps for each pool you want to create.
The new pool appears in the Pools list.

Creating a GTP profile

You create a GTP profile to manage GTP traffic.
  1. On the Main tab, click Local Traffic > Profiles .
  2. Click Create.
    The New GTP Profile screen opens.
  3. In the Name field, type a unique name for the profile.
  4. From the Parent Profile list, retain the default value or select another existing profile of the same type.
  5. Select the Custom check box.
  6. Optional: In the Ingress Maximum field, type the maximum number of messages that can be held in the GTP ingress queue.
  7. Click Finished.
The GTP profile is configured to manage GTP traffic.

Creating a virtual server for GTP traffic

This task creates a GTP destination to manage GTP traffic. As part of this task, you must assign the relevant pool to the virtual server.
  1. On the Main tab, click Local Traffic > Virtual Servers .
    The Virtual Server List screen opens.
  2. Click the Create button.
    The New Virtual Server screen opens.
  3. In the Name field, type a unique name for the virtual server.
  4. In the Destination Address field, type a wildcard network address in CIDR format, such as 0.0.0.0/0 for IPv4 or ::/0 for IPv6, to accept any traffic.
  5. In the Service Port field, type the port number used for the GTP connection.
    Note: Port 2123 is the default GTP-C port, and port 2152 is the default GTP-U port.
  6. From the Protocol list, select UDP.
  7. From the GTP Profile list, select gtp, or a user-defined GTP profile.
  8. In the Resources area of the screen, from the Default Pool list, select the relevant pool name.
  9. Click Finished.
You now have a virtual server to use as a GTP destination to manage GTP traffic.