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Method and gateway for performing on-line switching of software in communication system

A communication system and software technology, which is applied in multiplexing system selection devices, transmission systems, data exchange networks, etc., and can solve problems such as communication path loss, system unreliability, and service interruption

Inactive Publication Date: 2009-02-04
TELEFON AB LM ERICSSON (PUBL) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such interruption or power down will result in the interruption of the services provided by the system and may result in the loss of the communication paths established therein
Furthermore, such interruptions or power outages may appear to subscribers as unreliability of the system

Method used

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  • Method and gateway for performing on-line switching of software in communication system
  • Method and gateway for performing on-line switching of software in communication system
  • Method and gateway for performing on-line switching of software in communication system

Examples

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Embodiment Construction

[0041] Communication systems can potentially be configured in many alternative ways. Figure 1 is a possible configuration of a communication system according to the invention, where the system is indicated generally at 100 .

[0042]The system 100 comprises a first subscriber 110, an interconnection network 120 functioning in accordance with the Internet Protocol (IP), and enclosed within dashed line 125 a set of connection gateways according to the invention indicated at 130. The gateways in the gateway group 130 are identical to each other. Additionally, the system 100 further includes a telephone exchange 170 and a second subscriber 180 .

[0043] Network 120 is connected to first subscriber 110, as well as to other similar subscribers (not shown). Similarly, switch 170 is connected to second subscriber 180, as well as to other similar subscribers (also not shown). Network 120 is connected to the gateway by an Ethernet link.

[0044] Each connection gateway, such as gat...

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Abstract

The invention provides a method of performing online switching of software from executing a first version of operating software to executing a second version of operating software in a communication system (100). The system (100) incorporates connection gateways (130, 200) controllable using the software for routing and processing communication traffic flowing between subscribers connected to the system (100) in response to subscriber demand. The method includes the steps of: providing the system (100) with its gateways executing the first version of the software; receiving the second version of software at the gateways; receiving an instruction at the gateways to perform an online switch of software; storing persistent data describing at least routing connections established through the gateways; transferring control of the gateways from the first version of software to Mini Media Handler (MMH) software executing in the gateways and operable to maintain established routing connections through the gateways; executing the second version of software concurrently with the MMH software to enabling the second version to recover the persistent data and configure itself in response thereto; and passing control of the gateways from the MMH software to the second version of software. The invention provides the advantage that the gateways can be switched from executing the first version of software to executing the second version of software without causing an interruption of communication traffic conveyed through the gateways.

Description

technical field [0001] The present invention relates to a method of performing on-line software handover in a communication system, in particular, but not exclusively, to a communication system comprising a connection gateway controlled by software, while the system is in operation to deliver communication traffic , a method of switching from an earlier software establishment to a newer software establishment; the invention further relates to communication systems and connection gateways operating according to the method. Background technique [0002] Traditional communication systems vary in scale and complexity. Larger systems have numerous subscribers associated with them and are capable of routing data along communication paths connecting the subscribers in response to the subscriber's requirements. This path is established under software control through a unit called a connection gateway. Such gateways perform routing functions as well as other functions such as data ...

Claims

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Application Information

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IPC IPC(8): H04L12/66H04L12/24H04L12/56G06F9/445G06F11/00H04L29/08H04Q3/545
CPCG06F8/67H04L41/0213H04Q2213/13109H04L29/08981H04Q2213/13376H04Q2213/1305H04Q3/54516H04Q2213/13103H04L67/34H04Q2213/13196G06F8/656
Inventor P·N·马丁I·斯帕里W·A·林赛K·M·拉尼R·H·格林
Owner TELEFON AB LM ERICSSON (PUBL)
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