WO2008132203A8 - Recovering from a failure in a communications network - Google Patents

Recovering from a failure in a communications network Download PDF

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Publication number
WO2008132203A8
WO2008132203A8 PCT/EP2008/055180 EP2008055180W WO2008132203A8 WO 2008132203 A8 WO2008132203 A8 WO 2008132203A8 EP 2008055180 W EP2008055180 W EP 2008055180W WO 2008132203 A8 WO2008132203 A8 WO 2008132203A8
Authority
WO
WIPO (PCT)
Prior art keywords
node
nodes
client
failure
communications network
Prior art date
Application number
PCT/EP2008/055180
Other languages
French (fr)
Other versions
WO2008132203A2 (en
WO2008132203A3 (en
Inventor
Riccardo Martinotti
Andrea Corti
Raoul Fiorone
Original Assignee
Ericsson Telefon Ab L M
Riccardo Martinotti
Andrea Corti
Raoul Fiorone
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
Application filed by Ericsson Telefon Ab L M, Riccardo Martinotti, Andrea Corti, Raoul Fiorone filed Critical Ericsson Telefon Ab L M
Publication of WO2008132203A2 publication Critical patent/WO2008132203A2/en
Publication of WO2008132203A3 publication Critical patent/WO2008132203A3/en
Publication of WO2008132203A8 publication Critical patent/WO2008132203A8/en

Links

Classifications

    • 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
    • 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
    • H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration
    • 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
    • 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
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0062—Provisions for network management
    • H04Q3/0075—Fault management techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/618—Details of network addresses
    • H04L2101/622—Layer-2 addresses, e.g. medium access control [MAC] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00—Indexing scheme associated with group H04L61/00
    • H04L2101/60—Types of network addresses
    • H04L2101/677—Multiple interfaces, e.g. multihomed nodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Computer Security & Cryptography (AREA)
  • Small-Scale Networks (AREA)
  • Computer And Data Communications (AREA)

Abstract

A method of recovering from a failure of a link connecting a client to a node or of a node in a communications network using a dual homing protection and comprising a plurality of nodes. One of said nodes is connected to another network. A first node and a second node are connected to the client, and one of the ports related to the links connecting the client with the nodes is in an active state and the other is in a stand-by state. The method comprises detecting the failure (502), changing (504) both ports status. In response to the status change, sending, (506) to the node connected to the other network, a request to purge its MAC address table, purging (508) the MAC address table and flooding (510) nodes of the communications network in order to fill in the purged MAC address table with updated information, directing (512) traffic to and from the client via the link having the related port in the active state.
PCT/EP2008/055180 2007-04-25 2008-04-28 Recovering from a failure in a communications network WO2008132203A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0707915A GB2448711A (en) 2007-04-25 2007-04-25 Recovering from a failure in a communications network
GB0707915.5 2007-04-25

Publications (3)

Publication Number Publication Date
WO2008132203A2 WO2008132203A2 (en) 2008-11-06
WO2008132203A3 WO2008132203A3 (en) 2009-01-15
WO2008132203A8 true WO2008132203A8 (en) 2009-07-23

Family

ID=38135356

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/055180 WO2008132203A2 (en) 2007-04-25 2008-04-28 Recovering from a failure in a communications network

Country Status (2)

Country Link
GB (1) GB2448711A (en)
WO (1) WO2008132203A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101902382B (en) * 2009-06-01 2015-01-28 中兴通讯股份有限公司 Ethernet single ring network address refreshing method and system
US8102760B2 (en) 2009-06-30 2012-01-24 Alcatel Lucent Method for reconvergence after failure in a dual-homing network environment
CN101964718B (en) * 2009-07-23 2015-09-16 中兴通讯股份有限公司 Ethernet dual homed link protection changing method and system
CN101989944B (en) * 2009-07-31 2014-11-05 中兴通讯股份有限公司 Method for local protection of Ethernet tunnel and shared node of protection domain working segment
CN102006222B (en) * 2010-11-16 2015-06-24 中兴通讯股份有限公司 Service link switching method and service link switching device
CN102209037B (en) 2011-06-15 2014-03-26 华为技术有限公司 Media access control address switching method, network equipment and user equipment
CN107995111B (en) * 2016-10-26 2021-08-06 中兴通讯股份有限公司 Service forwarding method, link change notification method, convergence device and access device
KR101930900B1 (en) * 2016-12-19 2018-12-20 주식회사 케이티 Apparatus and method for constructing connection information of optical network equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6202114B1 (en) * 1997-12-31 2001-03-13 Cisco Technology, Inc. Spanning tree with fast link-failure convergence
JP4021841B2 (en) * 2003-10-29 2007-12-12 富士通株式会社 Control packet processing apparatus and method in spanning tree protocol
JP4020753B2 (en) * 2002-10-25 2007-12-12 富士通株式会社 Ring switching method
WO2006065795A2 (en) * 2004-12-14 2006-06-22 Alcatel Lucent Ring rapid spanning tree protocol

Also Published As

Publication number Publication date
GB0707915D0 (en) 2007-05-30
GB2448711A (en) 2008-10-29
WO2008132203A2 (en) 2008-11-06
WO2008132203A3 (en) 2009-01-15

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