Communications relay device, program and method, and network system

a relay device and communication technology, applied in the field of communication relay devices, program and methods, and network systems, can solve problems such as inability to transmit media traffi

Active Publication Date: 2010-08-19
OKI NETWORKS CO LTD
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0034]According to the embodiments of the present invention described above, in a network system including a communications relay device (e.g. S / BC) placed between a first network and a second network and a call control device (e.g. signaling processing server) placed in the second network, it is possible to achieve communication between terminals placed in the first network.

Problems solved by technology

However, the S / BC according to related art which is described above with reference to FIG. 6 has an issue that, in the NA(P)T control function, transfer of a media traffic is not capable if a call connection between terminals in the first network N1 is made in the configuration where the signaling processing server 13 that performs signaling relay is located in the second network N2.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042]Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the appended drawings. Note that, in this specification and the appended drawings, structural elements that have substantially the same function and structure are denoted with the same reference numerals, and repeated explanation of these structural elements is omitted.

(A) Principal Embodiment

[0043]A communications relay device, program and method, and a network system according to an embodiment of the present invention are described hereinafter in detail with reference to the drawings. In this embodiment, the case where a communications relay device according to the present invention is applied to an S / BC is described by way of illustration.

(A-1) Configuration According to Embodiment

[0044]FIG. 2 is an explanatory view showing connections of an S / BC 11 (communications relay device) according to the embodiment and related devices. In FIG. 2, the same or corresponding elemen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to a communications relay device placed between networks. The communications relay device includes a unit of translating a content of a call control packet flowing between the networks, a unit of storing translation information for translating a content of a data packet for each session, a unit of translating a data packet in accordance with the stored translation information, a unit of analyzing a content of a call control packet flowing between a first communication device placed in the first network and a communication device for call control and registering translation information, and a unit of associating two pieces of translation information generated based on call control packets relevant to a session between communication devices placed in the first network.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a communications relay device, program and method, and a network system, and the present invention is applicable to a network system that includes a session / border controller (hereinafter referred to as “S / BC”), which is a device placed for connection between different networks, for example.[0003]2. Description of the Related Art[0004]One of functions for a media traffic which are required for the S / BC is NA(P)T (Network Address (Port) Translation) control function (cf. “ITU-T Y.2111 9.2, “Procedures for NAPT control and NAT traversal””).[0005]The NA(P)T control function is a function of concealing a network at the other end of connection from each terminal by assigning an end IP address (or port) of media in each network as a virtual IP address (or port) to both of a network inside the S / BC (on the installation side) and a network outside the S / BC (on the counter connection side) when e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): H04L12/56H04L12/66H04L12/70
CPCH04L29/12405H04L65/1006H04L65/104H04L61/2528H04L65/1104
Inventor SHIBA, SHUGOKOMIYA, MASAYUKI
Owner OKI NETWORKS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap