LEGACY NETWORK MAXIMUM TRANSMISSION UNIT ISOLATION CAPABILITY THROUGH DEPLOYMENT OF A FLEXIBLE MAXIMUM TRANSMISSION UNIT PACKET CORE DESIGN

• US 20190313280A1
• Filed: 04/04/2018
• Published: 10/10/2019
• Est. Priority Date: 04/04/2018
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Gottwerth, Marc, Figurelle, Terry, Eng, Douglas, Amiri, Layli, Jardon, Mario Manuel
• Granted Patent: US 10,638,363 B2
• Time in Patent Office: Days
• CPC Class Codes: H04L 12/4633 Interconnection of networks using encapsulation techniques, e.g. tunneling
• CPC Class Codes: H04L 63/029 Firewall traversal, e.g. tunnelling or, creating pinholes
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 12/00 Security arrangements; Authentication; Protecting privacy or anonymity
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 76/12 Setup of transport tunnels
• CPC Class Codes: H04W 80/04 Network layer protocols, e.g. mobile IP [Internet Protocol]
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

Facilitating flexible maximum transmission unit packet core design in a communications network is provided herein. A system can comprise a processor and a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations. The operations can comprise receiving a first transmission unit setting from a first network device. The first transmission unit setting can indicate a size of a largest network layer protocol data unit that is able to be communicated in a single network transaction by the first network device. The operations can also comprise setting, at the device, a configuration of the first network device to the first transmission unit setting. Further, the operations can comprise sending first communication packets to the first network device using the first transmission unit setting and second communication packets to a second network device using a second transmission unit setting different from the first transmission unit setting.

Claims

1. A device, comprising:

a processor; and

a memory that stores executable instructions that, when executed by the processor, facilitate performance of operations, comprising;

receiving a first transmission unit setting from a first network device, wherein the first transmission unit setting indicates a size of a largest network layer protocol data unit that is able to be communicated in a single network transaction by the first network device;

setting, at the device, a configuration of the first network device to the first transmission unit setting; and

sending first communication packets to the first network device using the first transmission unit setting and second communication packets to a second network device using a second transmission unit setting different from the first transmission unit setting.

2. The device of claim 1, wherein the sending the first communication packets to the first network device comprises fragmenting the first communication packets to satisfy the first transmission unit setting, and wherein the sending the second communication packets to the second network device comprises fragmenting the second communication packets to satisfy the second transmission unit setting.

3. The device of claim 1, wherein the first transmission unit setting is different than a defined transmission unit setting that is common to the first network device and the second network device.

4. The device of claim 1, wherein the receiving the first transmission unit setting comprises receiving a broadcast message from the first network device, and wherein the broadcast message comprises a local source internet protocol address of the first network device and is transmitted to a group of destination internet protocol addresses, comprising a destination internet protocol address of the device.

5. The device of claim 4, wherein the group of destination internet protocol addresses are selected from a local data structure that indicates recipients of the broadcast message.

6. The device of claim 4, wherein the operations further comprise:

removing the local source internet protocol address of the first network device from a transmission unit logic data structure based on a determination that a defined time has elapsed since receipt of the first transmission unit setting from the first network device.

7. The device of claim 1, wherein the configuration of the first network device is a first configuration of the first network device, the operations further comprise:

determining a third transmission unit setting for a user equipment device serviced by the first network device; and

facilitating a second configuration of a transmission to the user equipment device based on the third transmission unit setting.

8. The device of claim 7, wherein the determining the third transmission unit setting comprises:

determining a byte value associated with packet delivery limitations of a data plane path between the first network device and the user equipment device; and

reducing the first transmission unit setting by the byte value to derive the third transmission unit setting.

9. The device of claim 7, wherein the operations further comprise:

updating the third transmission unit setting based on a determination that the user equipment device has moved from a first transmission unit zone associated with the first network device to a second transmission unit zone associated with a third network device that has a different transmission unit setting than the first transmission unit setting.

10. The device of claim 7, wherein the first network device is associated with a small cell network, and wherein the third transmission unit setting is reduced to accommodate a transmission capability of the small cell network.

11. The device of claim 1, wherein the first network device is a base station device and the device is a packet gateway device, wherein the receiving the first transmission unit setting from the first network device comprises receiving the first transmission unit setting from the base station device, and wherein the setting the configuration of the first network device comprises dynamically updating the packet gateway device based on the first transmission unit setting from the base station device.

12. The device of claim 1, wherein the device is a packet gateway device, wherein the first network device is a controller device, and wherein the receiving the first transmission unit setting from the first network device comprises periodically receiving a static file, from the controller device, that comprises the first transmission unit setting.

13. A method, comprising:

receiving, by a device comprising a processor and from a first network device, a first transmission unit setting that indicates a first size of a first largest network layer protocol data unit that can be communicated in a first single network transaction by the first network device;

setting, by the device, a first internal configuration associated with the first network device to the first transmission unit setting;

receiving, by the device and from a second network device, a second transmission unit setting that indicates a second size of a second largest network layer protocol data unit that can be communicated in a second single network transaction by the second network device, wherein the first size is different from the second size; and

setting, by the device, a second internal configuration associated with the second network device to the second transmission unit setting.

14. The method of claim 13, further comprising:

determining, by the device, a third size that represents a size of a transmission packet intended for a user equipment device in communication with the first network device, wherein the third size is less than the first size; and

facilitating, by the device, a transmission of an indication of the third size and an identification of the user equipment device to the first network device.

15. The method of claim 14, wherein the determining the third size comprises:

determining an amount of overhead loss that occurs on a data plane path between the first network device and the user equipment device; and

reducing the first size by the amount of overhead loss.

16. The method of claim 13, wherein the receiving the first size comprises receiving the first size in a general packet radio service tunneling protocol user data tunneling header that comprises an extension header.

17. The method of claim 13, further comprising:

populating, by the device, a logical transmission unit data structure with a first capability of the first network device and a second capability of the second network device;

correlating, by the device and in the logical transmission unit data structure, the first capability to the first network device based on a first source internet protocol address of the first network device; and

correlating, by the device and in the logical transmission unit data structure, the second capability to the second network device based on a second source internet protocol address of the second network device.

18. The method of claim 13, further comprising:

implementing, by the device, a first quarantine band within a first geographic radius of the first network device, wherein the first quarantine band specifies a third transmission unit setting within the first quarantine band to be equal to the first size; and

implementing, by the device, a second quarantine band within a second geographic radius of the first network device, wherein the second quarantine band specifies a fourth transmission unit setting within the first quarantine band to be equal to a third size which is a higher transmission unit setting than the first size.

19. A machine-readable storage medium, comprising executable instructions that, when executed by a processor of a network device of a wireless network, facilitate performance of operations, comprising:

receiving, from a first network device, a first signal that comprises a first value that represents a first transmission unit setting supported by the first network device;

receiving, from a second network device, a second signal that comprises a second value that represents a second transmission unit setting supported by the second network device, wherein the second value is different from the first value; and

facilitating a first transmission of a first group of packets to the first network device based on the first value and a second transmission of a second group of packets to the second network device based on the second value.

20. The machine-readable storage medium of claim 19, wherein the operations further comprise receiving the first signal in a general packet radio service tunneling protocol user data tunneling header that comprises an extension header.