GB2369019B - Method for carrying out real-time backup communication of IP communication - Google Patents

Method for carrying out real-time backup communication of IP communication

Info

Publication number
GB2369019B
GB2369019B GB0202535A GB0202535A GB2369019B GB 2369019 B GB2369019 B GB 2369019B GB 0202535 A GB0202535 A GB 0202535A GB 0202535 A GB0202535 A GB 0202535A GB 2369019 B GB2369019 B GB 2369019B
Authority
GB
United Kingdom
Prior art keywords
real
network
communication
performance
time
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB0202535A
Other versions
GB2369019A (en
GB0202535D0 (en
Inventor
Mitsuo Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP22486899A external-priority patent/JP2001053794A/en
Application filed by NEC Corp filed Critical NEC Corp
Publication of GB0202535D0 publication Critical patent/GB0202535D0/en
Publication of GB2369019A publication Critical patent/GB2369019A/en
Application granted granted Critical
Publication of GB2369019B publication Critical patent/GB2369019B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/1066—Session management
    • H04L65/1069—Session establishment or de-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/54—Store-and-forward switching systems 
    • H04L12/56—Packet switching systems
    • H04L12/5691—Access to open networks; Ingress point selection, e.g. ISP selection
    • H04L12/5692—Selection among different networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/14—Network analysis or design
    • H04L41/142—Network analysis or design using statistical or mathematical methods
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
    • H04L43/0811—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking connectivity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/28—Flow control; Congestion control in relation to timing considerations
    • H04L47/283—Flow control; Congestion control in relation to timing considerations in response to processing delays, e.g. caused by jitter or round trip time [RTT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/40—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/0024—Services and arrangements where telephone services are combined with data services
    • H04M7/0057—Services where the data services network provides a telephone service in addition or as an alternative, e.g. for backup purposes, to the telephone service provided by the telephone services network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0681—Configuration of triggering conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/4228—Systems providing special services or facilities to subscribers in networks
    • H04M3/42289—Systems providing special services or facilities to subscribers in networks with carrierprovider selection by subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Multimedia (AREA)
  • General Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Probability & Statistics with Applications (AREA)
  • Pure & Applied Mathematics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

Real-time communications are transmitted from a transmission side node 120 to a reception side node 130 via an internet protocol (IP) network 100 provided performance is deemed satisfactory. However if performance is deemed unsatisfactory the IP network is bypassed and the real-time communications are instead automatically diverted along a public network 110. If a real-time communication call is newly generated during the course of real-time communication on the public network then the newly generated real-time communication is made to go around the public network rather than the IP network. Performance is assessed by periodically transmitting echo test signals along the IP network. If the time interval between sending and receiving an echo test signal exceeds a predetermined allowed time interval then the quality of real time communication cannot be assured and performance is deemed unsatisfactory.
GB0202535A 1999-08-09 2000-08-09 Method for carrying out real-time backup communication of IP communication Expired - Fee Related GB2369019B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP22486899A JP2001053794A (en) 1999-08-09 1999-08-09 Real time backup communication method for ip communication
GB0019611A GB2356536B (en) 1999-08-09 2000-08-09 Method for carrying out real-time backup communication of IP communication

Publications (3)

Publication Number Publication Date
GB0202535D0 GB0202535D0 (en) 2002-03-20
GB2369019A GB2369019A (en) 2002-05-15
GB2369019B true GB2369019B (en) 2002-07-24

Family

ID=26244817

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0202535A Expired - Fee Related GB2369019B (en) 1999-08-09 2000-08-09 Method for carrying out real-time backup communication of IP communication

Country Status (1)

Country Link
GB (1) GB2369019B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020122417A1 (en) * 2001-03-02 2002-09-05 Miller Kory Wade Selection of voice connection type
FI122292B (en) 2002-10-24 2011-11-15 Tellabs Oy Method, apparatus and network elements for performing transmission
US7454785B2 (en) 2002-12-19 2008-11-18 Avocent Huntsville Corporation Proxy method and system for secure wireless administration of managed entities
US7394761B2 (en) * 2003-04-29 2008-07-01 Avocent Huntsville Corporation System and method for delivering messages using alternate modes of communication

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0910201A2 (en) * 1997-10-17 1999-04-21 Alcatel Device and method for establishing a voice connection
US5898668A (en) * 1996-12-13 1999-04-27 Siemens Information And Communication Networks, Inc. Method and system for increasing quality of service at or below a threshold cost
EP0920176A2 (en) * 1997-12-01 1999-06-02 Nortel Networks Corporation Automatic backup trunking for voice over the internet
WO1999028979A2 (en) * 1997-12-02 1999-06-10 Alcatel Usa Sourcing, L.P. Digital phone system
JPH11308345A (en) * 1998-04-21 1999-11-05 Nec Corp Network and inhouse network
EP1035719A2 (en) * 1999-03-11 2000-09-13 Siemens Information and Communication Networks Inc. Apparatus and method for dynamic internet protocol telephony call routing and call rerouting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5898668A (en) * 1996-12-13 1999-04-27 Siemens Information And Communication Networks, Inc. Method and system for increasing quality of service at or below a threshold cost
EP0910201A2 (en) * 1997-10-17 1999-04-21 Alcatel Device and method for establishing a voice connection
EP0920176A2 (en) * 1997-12-01 1999-06-02 Nortel Networks Corporation Automatic backup trunking for voice over the internet
WO1999028979A2 (en) * 1997-12-02 1999-06-10 Alcatel Usa Sourcing, L.P. Digital phone system
JPH11308345A (en) * 1998-04-21 1999-11-05 Nec Corp Network and inhouse network
EP1035719A2 (en) * 1999-03-11 2000-09-13 Siemens Information and Communication Networks Inc. Apparatus and method for dynamic internet protocol telephony call routing and call rerouting

Also Published As

Publication number Publication date
GB2369019A (en) 2002-05-15
GB0202535D0 (en) 2002-03-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20130809