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Identifying nated devices for device-specific traffic flow steering

A device identification and device technology, applied in electrical components, transmission systems, etc., can solve the problems of providing service flow orientation, inability to distinguish subscriber devices, etc., and achieve the effect of increasing average income

Inactive Publication Date: 2015-07-29
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this SDN-based steering network cannot distinguish subscriber devices behind the RG and thus cannot provide device-specific traffic steering to subscriber devices hidden behind NAT devices

Method used

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  • Identifying nated devices for device-specific traffic flow steering
  • Identifying nated devices for device-specific traffic flow steering
  • Identifying nated devices for device-specific traffic flow steering

Examples

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Embodiment Construction

[0023] Referring now to the accompanying drawings, figure 1An exemplary communication network 10 is illustrated in accordance with one embodiment of the present invention. The communication network 10 comprises a residential gateway (RG) 20 providing connectivity to an external network 30 for a plurality of subscriber devices 25 in a private network 15, such as a subscriber's home network. exist figure 1 , four subscriber devices (denoted devices A-D) are shown. External network 30 may include, for example, a service provider network or a public wide area network (WAN), such as the Internet. Subscriber device 25 may include a personal computer, tablet, smartphone, or other user equipment (UE). Subscriber device 25 may communicate via a local area network (LAN), wireless LAN (WLAN) or, for example, WiFi, Bluetooth and other short-range wireless interfaces to communicate with the RG 20.

[0024] In the exemplary embodiment, packets are routed within private network 15 and ...

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PUM

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Abstract

The present disclosure describes methods and apparatus for differentiating subscriber devices of a subscriber hidden by a network address translation device and enables traffic flow steering on a per device basis rather than a per subscriber basis. Identification of subscriber devices is achieved by assigning a reserved set of external ports to each subscriber device. Different service paths can be defined for different subscriber devices to provide a subscriber with a different experience for each subscriber device of the subscriber.

Description

technical field [0001] The present disclosure relates generally to traffic steering in software-defined networking (SDN), and more particularly to the identification of devices hidden by network address translation (NAT) devices to enable device-specific traffic steering . Background technique [0002] Internet Protocol version 4 (IPv4) addresses consist of 32 bits, which yields 4294967296 (2 32 ) address space of addresses. As the number of Internet-connected devices continues to increase, available IPv4 addresses are becoming scarce. The problem of IPv4 address depletion has led to the development of the Internet Protocol Version 6 (IPv6) protocol, which provides a 128-bit address space. However, in the short to medium term, there is some pressure to move deployed and working systems from IPv4 to IPv6, especially for service providers who benefit from the relatively large pool of public IPv4 addresses already allocated. Solutions such as Network Address Translation (NA...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L45/74H04L45/42H04L45/741
CPCH04L63/0892H04L61/2517H04L45/38H04L61/2514H04L41/0813H04L41/0816H04L41/0895H04L41/342
Inventor S·克里什南M·希拉齐波尔C·特鲁钱
Owner TELEFON AB LM ERICSSON (PUBL)