WO2005104439A3 - Routing system and method for transparently recovering routing states after a failover or during a software upgrade - Google Patents

Routing system and method for transparently recovering routing states after a failover or during a software upgrade Download PDF

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Publication number
WO2005104439A3
WO2005104439A3 PCT/US2005/007615 US2005007615W WO2005104439A3 WO 2005104439 A3 WO2005104439 A3 WO 2005104439A3 US 2005007615 W US2005007615 W US 2005007615W WO 2005104439 A3 WO2005104439 A3 WO 2005104439A3
Authority
WO
WIPO (PCT)
Prior art keywords
routing
failover
during
peer
software upgrade
Prior art date
Application number
PCT/US2005/007615
Other languages
French (fr)
Other versions
WO2005104439A2 (en
Inventor
Chandrashekhar Appanna
Ruchi Kapoor
Barry Friedman
Himanshu Shah
Gargi Nalawade
Shyam Suri
John Harper
Original Assignee
Cisco Tech Inc
Chandrashekhar Appanna
Ruchi Kapoor
Barry Friedman
Himanshu Shah
Gargi Nalawade
Shyam Suri
John Harper
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 Cisco Tech Inc, Chandrashekhar Appanna, Ruchi Kapoor, Barry Friedman, Himanshu Shah, Gargi Nalawade, Shyam Suri, John Harper filed Critical Cisco Tech Inc
Priority to AU2005236835A priority Critical patent/AU2005236835B2/en
Priority to EP05725019.3A priority patent/EP1735951B1/en
Priority to CA2558792A priority patent/CA2558792C/en
Publication of WO2005104439A2 publication Critical patent/WO2005104439A2/en
Publication of WO2005104439A3 publication Critical patent/WO2005104439A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2023—Failover techniques
    • G06F11/2028—Failover techniques eliminating a faulty processor or activating a spare
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/20—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
    • G06F11/202—Error detection or correction of the data by redundancy in hardware using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements where processing functionality is redundant
    • G06F11/2023—Failover techniques
    • G06F11/2033—Failover techniques switching over of hardware resources
    • 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
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/58—Association of routers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/58—Association of routers
    • H04L45/586—Association of routers of virtual routers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

According to one aspect of the present invention, a method for restarting a network device (404) which has a plurality of routers and is in communication with a first peer being arranged to support graceful restart and a second peer includes performing a graceful restart with respect to the first peer (416). A peer transparent failover is performed with respect to the second peer (420). The graceful restart and the peer transparent failover are performed in response to a failure associated with the network device.
PCT/US2005/007615 2004-03-24 2005-03-07 Routing system and method for transparently recovering routing states after a failover or during a software upgrade WO2005104439A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2005236835A AU2005236835B2 (en) 2004-03-24 2005-03-07 Routing system and method for transparently recovering routing states after a failover or during a software upgrade
EP05725019.3A EP1735951B1 (en) 2004-03-24 2005-03-07 Routing system and method for transparently recovering routing states after a failover or during a software upgrade
CA2558792A CA2558792C (en) 2004-03-24 2005-03-07 Routing system and method for transparently recovering routing states after a failover or during a software upgrade

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/808,040 2004-03-24
US10/808,040 US7506194B2 (en) 2004-03-24 2004-03-24 Routing system and method for transparently rocovering routing states after a failover or during a software upgrade

Publications (2)

Publication Number Publication Date
WO2005104439A2 WO2005104439A2 (en) 2005-11-03
WO2005104439A3 true WO2005104439A3 (en) 2007-05-31

Family

ID=34989692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/007615 WO2005104439A2 (en) 2004-03-24 2005-03-07 Routing system and method for transparently recovering routing states after a failover or during a software upgrade

Country Status (6)

Country Link
US (1) US7506194B2 (en)
EP (1) EP1735951B1 (en)
CN (1) CN100483357C (en)
AU (1) AU2005236835B2 (en)
CA (1) CA2558792C (en)
WO (1) WO2005104439A2 (en)

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Also Published As

Publication number Publication date
CN100483357C (en) 2009-04-29
WO2005104439A2 (en) 2005-11-03
CN101048740A (en) 2007-10-03
CA2558792C (en) 2011-02-15
EP1735951A2 (en) 2006-12-27
EP1735951B1 (en) 2017-05-17
AU2005236835A1 (en) 2005-11-03
US7506194B2 (en) 2009-03-17
EP1735951A4 (en) 2010-05-19
AU2005236835B2 (en) 2009-12-03
CA2558792A1 (en) 2005-11-03
US20050213498A1 (en) 2005-09-29

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