[go: up one dir, main page]

CN100466564C - 虚拟租用线路的故障监听方法与装置 - Google Patents

虚拟租用线路的故障监听方法与装置 Download PDF

Info

Publication number
CN100466564C
CN100466564C CNB2007100907733A CN200710090773A CN100466564C CN 100466564 C CN100466564 C CN 100466564C CN B2007100907733 A CNB2007100907733 A CN B2007100907733A CN 200710090773 A CN200710090773 A CN 200710090773A CN 100466564 C CN100466564 C CN 100466564C
Authority
CN
China
Prior art keywords
message
link
vll
link protocol
fault
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
CNB2007100907733A
Other languages
English (en)
Other versions
CN101035032A (zh
Inventor
刘长宝
子康
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CNB2007100907733A priority Critical patent/CN100466564C/zh
Publication of CN101035032A publication Critical patent/CN101035032A/zh
Priority to PCT/CN2008/070349 priority patent/WO2008119275A1/zh
Application granted granted Critical
Publication of CN100466564C publication Critical patent/CN100466564C/zh
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04L65/10—Architectures or entities
    • H04L65/102—Gateways
    • H04L65/1043—Gateway controllers, e.g. media gateway control protocol [MGCP] controllers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/305—Authentication, i.e. establishing the identity or authorisation of security principals by remotely controlling device operation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/60—Protecting data
    • G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
    • G06F21/6209—Protecting access to data via a platform, e.g. using keys or access control rules to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
    • G06F21/74—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information operating in dual or compartmented mode, i.e. at least one secure mode
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/88—Detecting or preventing theft or loss
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G11B20/10305—Improvement or modification of read or write signals signal quality assessment
    • G11B20/10398—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors
    • G11B20/10425—Improvement or modification of read or write signals signal quality assessment jitter, timing deviations or phase and frequency errors by counting out-of-lock events of a PLL
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/08—Details of the phase-locked loop
    • H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
    • H03L7/091—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal the phase or frequency detector using a sampling device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/03—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words
    • H03M13/23—Error detection or forward error correction by redundancy in data representation, i.e. code words containing more digits than the source words using convolutional codes, e.g. unit memory codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2903—Methods and arrangements specifically for encoding, e.g. parallel encoding of a plurality of constituent codes
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/29—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes combining two or more codes or code structures, e.g. product codes, generalised product codes, concatenated codes, inner and outer codes
    • H03M13/2957—Turbo codes and decoding
    • H03M13/2993—Implementing the return to a predetermined state, i.e. trellis termination
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/63—Joint error correction and other techniques
    • H03M13/635—Error control coding in combination with rate matching
    • H03M13/6356—Error control coding in combination with rate matching by repetition or insertion of dummy data, i.e. rate reduction
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
    • H03M13/63—Joint error correction and other techniques
    • H03M13/635—Error control coding in combination with rate matching
    • H03M13/6362—Error control coding in combination with rate matching by puncturing
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4006—Conversion to or from arithmetic code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25752—Optical arrangements for wireless networks
    • H04B10/25753—Distribution optical network, e.g. between a base station and a plurality of remote units
    • H04B10/25754—Star network topology
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0077—Multicode, e.g. multiple codes assigned to one user
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0064—Concatenated codes
    • H04L1/0066—Parallel concatenated codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0067—Rate matching
    • H04L1/0068—Rate matching by puncturing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • 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
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/48—Message addressing, e.g. address format or anonymous messages, aliases
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/58—Message adaptation for wireless communication
    • 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
    • H04L65/1101—Session protocols
    • H04L65/1104—Session initiation protocol [SIP]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
    • H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
    • H04L9/085—Secret sharing or secret splitting, e.g. threshold schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/304—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy based on error correction codes, e.g. McEliece
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
    • H04M1/724—User interfaces specially adapted for cordless or mobile telephones
    • H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
    • H04M1/72409—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories
    • H04M1/72415—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories for remote control of appliances
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M7/00—Arrangements for interconnection between switching centres
    • H04M7/12—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal
    • H04M7/1205—Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal where the types of switching equipement comprises PSTN/ISDN equipment and switching equipment of networks other than PSTN/ISDN, e.g. Internet Protocol networks
    • H04M7/1295—Details of dual tone multiple frequency signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H04W4/14—Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/12—Setup of transport tunnels
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2105—Dual mode as a secondary aspect
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F2221/2115—Third party
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/22—Signal processing not specific to the method of recording or reproducing; Circuits therefor for reducing distortions
    • 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
    • H04L41/34—Signalling channels for network management communication
    • H04L41/342—Signalling channels for network management communication between virtual entities, e.g. orchestrators, SDN or NFV entities
    • 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
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
    • 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
    • H04L43/0823—Errors, e.g. transmission errors
    • H04L43/0829—Packet loss
    • 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
    • H04L43/20—Arrangements for monitoring or testing data switching networks the monitoring system or the monitored elements being virtualised, abstracted or software-defined entities, e.g. SDN or NFV
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L51/00—User-to-user messaging in packet-switching networks, transmitted according to store-and-forward or real-time protocols, e.g. e-mail
    • H04L51/04—Real-time or near real-time messaging, e.g. instant messaging [IM]
    • 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
    • H04L65/10—Architectures or entities
    • H04L65/1016—IP multimedia subsystem [IMS]
    • 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
    • H04M3/42221—Conversation recording systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/12—Messaging; Mailboxes; Announcements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H04W8/245—Transfer of terminal data from a network towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/26—Network addressing or numbering for mobility support
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • H04W88/085—Access point devices with remote components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S370/00—Multiplex communications
    • Y10S370/901—Wide area network
    • Y10S370/902—Packet switching
    • Y10S370/903—Osi compliant network
    • Y10S370/906—Fiber data distribution interface, FDDI
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S370/00—Multiplex communications
    • Y10S370/901—Wide area network
    • Y10S370/902—Packet switching
    • Y10S370/903—Osi compliant network
    • Y10S370/907—Synchronous optical network, SONET

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Multimedia (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Probability & Statistics with Applications (AREA)
  • General Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Discrete Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Business, Economics & Management (AREA)
  • Bioethics (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computing Systems (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

本发明涉及信息技术领域，公开了一种虚拟租用线路的故障监听方法与装置，其中，所述方法首先从虚拟租用线路上接收本地用户端发送给对方用户端的报文；判断收到的报文是否为链路协议报文，并在所述报文是链路协议报文时，判断所述链路协议报文是否为故障报文。另外，本发明也提供了一种虚拟租用线路的故障监听装置，本发明在同种介质互连时能够监听到连接链路在任何位置发生的故障，并能根据监听到的故障对虚拟租用线路业务进行快速重路由，从而能够有效地保护虚拟租用线路业务的可靠性。

Description

虚拟租用线路的故障监听方法与装置
技术领域
本发明涉及信息技术领域，尤其涉及一种虚拟租用线路的故障监听方法与装置。
背景技术
虚拟租用线路(VLL，Virtual Leased Line)是一种网络互连业务，VLL业务是点到点的连接，如果网络中的任何一点出现故障，就会导致VLL业务中断，从而降低了VLL业务的可靠性。
为了提高VLL业务的可靠性，现有技术提出一种基于VLL的快速重路由(FRR，Fast Reroute)方法，下面结合图1对该现有技术进行描述，如图1所示，该组网图包括用户端(CE，Customer Edge)和供应端(PE，Provider Edge)，具体是这样实现的：
在对方供应端和本地供应端之间建立一条主伪链路(PW，Pseudo wire)，并在对方供应端和本地备份供应端之间再建立一条备份PW，用来保护主PW。在对方供应端上主PW和备份PW共用一个连接链路(AC，Attachment circuit)，也就是对方用户端和对方供应端之间的链路；为了快速检测PW本身的故障，可以使用双向转发检测(BFD，bidirectional forwarding detection)方式，同时AC链路之间(例如，对方用户端和对方供应端、本地供应端和本地用户端、本地备份供应端和本地用户端)的故障可以根据不同的网络选用不同的检测方式，例如，以太网可以使用802.1ag或者802.1ah，异步传输模式(ATM，Asynchronous Transfer Mode)网络可以使用ATM操作和维护(ATM OAM，ATM Operation and Maintenance)信元等。
上述现有技术当本地供应端和本地用户端之间的AC链路出现故障后，本地供应端通过PW信令或者其他方式将故障告知对方供应端，对方供应端收到远端故障事件后就从主PW切换到备份PW上，数据也从PW切换到备份PW上；当BFD检测到主PW发生故障后，对方供应端将VLL业务切换到备份PW上。这样对方供应端、本地供应端和本地用户端之间任何一点出现故障，VLL业务都能得到有效保护。同时对不同的网络可采用不同的AC故障检测方式，对以太网使用802.1ag或者802.1ah，对ATM可以使用ATM OAM，例如远端缺陷指示(RDI，Remote Defect Indication)和报警指示信号(AIS，Alarm IndicationSignal)。
但是，上述现有技术在AC是点到点协议(PPP，Point-to-Point Protocol)、帧中继(FR，Frame Relay)和高级数据链路控制(HDLC，High Level Data LinkControl)链路时就分为两种情况：一种情况是异种介质互连(例如，对方用户端和对方供应端、本地供应端和本地用户端、本地备份供应端和本地用户端之间是独立协商链路状态)，此时AC可分别使用链路协议本身的机制来检测故障；另一种情况是同种介质互连，此时对方用户端和本地用户端之间需要通过PW进行链路协商，而链路协商报文在对方供应端上是透传的，因此，同种介质互连时，对方供应端不能检测到AC链路的故障，进一步，在对方供应端上无法实现从主PW切换到备份PW，也就无法实现VLL业务的保护。
发明内容
本发明实施例要解决的技术问题是提供一种虚拟租用线路的故障监听方法与装置，该方法与装置在同种介质互连的情况也能监听到AC链路的故障。
为解决上述技术问题，本发明实施例提供一种虚拟租用线路的故障监听方法，该方法包括：
从虚拟租用线路上接收本地用户端发送给对方用户端的报文；
判断收到的报文是否为链路协议报文，并在所述报文是链路协议报文时，将所述链路协议报文进行复制再发送给本地用户端的中央处理单元，并判断所述链路协议报文是否为故障报文。
本发明实施例也提供一种虚拟租用线路的故障监听装置，该装置包括：
接收单元，用于从虚拟租用线路上接收报文；
监听单元，用于判断收到的报文是否为链路协议报文，以及在所述报文是链路协议报文时，将所述链路协议报文进行复制再发送给本地用户端的中央处理单元，判断所述链路协议报文是否为故障报文。
以上技术方案可以看出，由于本发明实施例首先判断收到的报文是否为链路协议报文，并在收到的报文为链路协议报文时，判断报文是否为故障报文，与现有技术将链路协议报文进行透传相比较，本发明实施例在VLL业务处于同种介质互连时，也能够根据链路协议报文得知AC链路在任何位置发生的故障，从而使得本发明实施例可根据监测到的故障对VLL业务进行快速重路由，进而能够有效地保护VLL业务的可靠性。
附图说明
图1是现有技术的VLL组网示意图；
图2是本发明方法实施方式的流程图；
图3是本发明装置实施方式的示意图。
具体实施方式
本发明实施例提供一种虚拟租用线路的故障监听方法与装置，该方法首先从虚拟租用线路上接收本地用户端发送给对方用户端的报文；判断收到的报文是否为链路协议报文，并在所述报文是链路协议报文时，判断所述链路协议报文是否为故障报文。
参照图2，图2是本发明方法实施方式的流程图，下面结合图1和图2对该实施方式进行详细说明，假设图1的本地供应端是PE2a，本地用户端是CE2，本地备份供应端是PE2b，对方供应端是PE1，对方用户端是CE1，该实施方式包括以下步骤：
步骤201、本地供应端接收链路协议的监听标识，利用该监听标识在本地的用户端和供应端之间的接口触发链路协议监听功能，其中，监听标识就是一个需要进行监听的标志，本地供应端只有收到该监听标识后才可以触发接口的链路协议监听功能。
步骤202、本地供应端通过本地的用户端和供应端之间的接口从虚拟租用线路上接收本地用户端发送给对方用户端的报文，例如，通过PE2a和CE2的接口接收CE2发送给CE1的报文。通常采用链路协议报文将AC链路的情况(例如AC链路正常或故障)转发给对方供应端，该链路协议报文都是协议自身定义的。
步骤203、根据收到报文头部的报文类型标志位判断该报文是否为链路协议报文，如果是，执行步骤204，否则结束流程。
步骤204、通过VLL转发链路协议报文给对方用户端，同时将该链路协议报文进行复制，然后发送给本地用户端的中央处理单元(CPU，Centralprocessing unit)。
步骤205、本地供应端根据收到报文的数据内容判断该链路协议报文是否为故障报文，如果是，执行步骤206，否则结束流程。
其中，报文的数据内容包括报文标识，该标识可以区分报文是故障报文还是正常报文等。
同时本地供应端根据收到的链路协议报文来驱动本地链路协议状态机，以保证状态之间能够正常进行迁移。
假设本地接口的链路协议状态机包括UP状态和DOWN状态两个状态，UP状态表示可用，DOWN状态表示不可用，链路协议报文分为正常报文和故障报文两种，假设状态机的当前状态为DOWN状态，如果链路协议报文是故障报文，状态机仍为DOWN状态；如果链路协议报文是正常报文，状态机则从DOWN状态迁移至UP状态。
如果状态机的当前状态为UP状态，如果链路协议报文是故障报文，状态机从UP状态变为DOWN状态；如果链路协议报文是正常报文，状态机仍为UP状态。
步骤206、通过VLL信令或者BFD等其他方式将报文是否为故障报文的结果通知对方供应端。
步骤207、对方供应端判断虚拟租用线路上是否存在备份PW，如果是，执行步骤208，否则结束流程。
步骤208、对方供应端从主PW切换到备份PW。
可选地，根据收到报文的数据内容判断得到该链路协议报文是故障恢复报文时，也需要通过VLL信令或者BFD等其他方式将判断结果通知对方供应端，对方供应端再从备份PW切换到主PW。
由图1可知，主PW是PE1和PE2a之间的链路，备份PW是PE1和PE2b之间的链路，从主PW切换到备份PW就是从PE1和PE2a之间的链路切换到PE1和PE2b之间的链路。
下面结合图1对本发明方法实施方式进行举例说明，假设图1的本地供应端是PE2a，本地用户端是CE2，本地备份供应端是PE2b，对方供应端是PE1，对方用户端是CE1。首先启动PE2a和CE2之间接口的链路协议监听功能，当CE2通过PE2a和CE2之间的接口向CE1发送报文时，PE2a判断该报文是链路协议报文时，通过VLL信令将该报文转发给CE2处理，同时将该报文进行复制再发送给本地的CPU，PE2a根据收到的链路协议报文来驱动本地链路协议状态机，以保证状态之间能够正常进行迁移。
PE2a在监听到CE2发送给CE1的链路协议报文为故障报文时，通过VLL信令或者BFD等其他方式通知PE1从主PW切换到备份PW，例如，PE2a监听到CE2发送给CE1的报文是链路控制协议终结(Link Control protocol Terminal)报文时，通过VLL信令或者其他方式通告PE1，让PE1从主PW切换到备份PW。当PE2a监听到CE2发送给CE1的链路协议报文为故障恢复报文时，通过VLL信令或者其他方式通知PE1连接链路故障已恢复，PE1从备份PW正常回切到主PW。
PE2a根据收到的链路协议报文驱动本地的链路协议状态机，例如，从UP状态到DOWN状态或者从DOWN状态到UP状态等，这样可以保证状态之间能够正常进行迁移。
同样地，PE2a对CE1发送给CE2的报文也需要监听，如果该报文是链路协议报文需将报文原封不动的转发给CE2处理，如果PE2a监听到该报文是故障报文时不需要通知PE1从主PW切换到备份PW，但需要将该报文发送给对方用户端的CPU，以便驱动本地接口的链路协议状态机，保证状态之间能够正常进行迁移。
本发明实施例也提供了一种虚拟租用线路的故障监听装置，由图3可知，该装置包括触发单元301、接收单元302、监听单元303以及切换单元306。
其中，触发单元301用于接收链路协议的监听标识，以及根据该监听标识触发链路协议监听功能。
其中，接收单元302用于在触发链路协议监听功能之后从虚拟租用线路上接收本地用户端向对方用户端发送的报文。
其中，监听单元303包括：
第一判断单元304，用于根据收到报文头部的报文类型标志位判断接收单元302该报文是否为链路协议报文，以及在报文是链路协议报文时，将该报文进行复制再发送给本地用户端的中央处理单元；
第二判断单元305，用于在第一判断单元304得到报文是链路协议报文时，根据收到报文的数据内容判断报文是否为故障报文或故障恢复报文，并将判断结果发送给切换单元306。
其中，切换单元306用于判断虚拟租用线路上是否存在备份伪链路，并在虚拟租用线路上存在备份伪链路和第二判断单元305得到报文是故障报文的结果时从主伪链路切换到备份伪链路，以及在第二判断单元305得到报文是故障恢复报文的结果时从备份伪链路切换到主伪链路。
由上述可知，本发明实施例首先判断收到的报文是否为链路协议报文，并在收到的报文为链路协议报文时，判断报文是否为故障报文，与现有技术将链路协议报文进行透传相比较，本发明实施例在VLL业务处于同种介质互连时，也能够根据链路协议报文得知AC链路在任何位置发生的故障，从而使得本发明实施例可根据监测到的故障对VLL业务进行快速重路由，进而能够有效地保护VLL业务的可靠性。
另外，本发明实施例在报文为链路协议报文时，需要将该报文发送给本地用户端的CPU，这样可以驱动本地的链路协议状态机，从而保证状态机的各个状态之间能够正常进行迁移。
最后，当本地用户端向对方用户端发送报文时，本发明实施例监听到报文是故障报文时从主PW切换到备份PW，报文是故障恢复报文时从备份PW切换到主PW，这样使得本发明实施例在AC链路出现故障时，都不会中断VLL业务，从而提高了VLL业务的可靠性。
以上对本发明实施例所提供的一种虚拟租用线路的故障监听方法与装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

1、一种虚拟租用线路的故障监听方法，其特征在于，所述方法包括:
从虚拟租用线路上接收本地用户端发送给对方用户端的报文；
判断所述报文是否为链路协议报文，并在所述报文是链路协议报文时，将所述链路协议报文进行复制再发送给本地用户端的中央处理单元，并判断所述链路协议报文是否为故障报文。
2、如权利要求1所述的虚拟租用线路的故障监听方法，其特征在于，根据收到报文头部的报文类型标志位判断所述报文是否为链路协议报文。
3、如权利要求1所述的虚拟租用线路的故障监听方法，其特征在于，根据收到报文的数据内容判断所述链路协议报文是否为故障报文。
4、如权利要求1所述的虚拟租用线路的故障监听方法，其特征在于，在判断报文是否为故障报文之后进一步包括:
当虚拟租用线路上存在备份伪链路以及报文是故障报文时，通知对方供应端从主伪链路切换到备份伪链路。
5、如权利要求1所述的虚拟租用线路的故障监听方法，其特征在于，在接收本地用户端发送给对方用户端的报文之前进一步包括:
接收链路协议的监听标识，以及利用所述监听标识触发链路协议的监听功能。
6、如权利要求1至5任一项所述的虚拟租用线路的故障监听方法，其特征在于，所述方法进一步包括:
在报文是链路协议报文时，根据收到报文的数据内容判断所述报文是否为故障恢复报文，并在报文是故障恢复报文时通知对方供应端从备份伪链路切换到主伪链路。
7、一种虚拟租用线路的故障监听装置，其特征在于，所述装置包括:
接收单元，用于从虚拟租用线路上接收报文；
监听单元，用于判断所述报文是否为链路协议报文，以及在所述报文是链路协议报文时，将所述链路协议报文进行复制再发送给本地用户端的中央处理单元，判断所述链路协议报文是否为故障报文。
8、如权利要求7所述的虚拟租用线路的故障监听装置，其特征在于，所述监听单元包括:
第一判断单元，用于根据收到报文头部的报文类型标志位判断所述报文是否为链路协议报文，并在报文是链路协议报文时，将所述报文进行复制再发送给本地用户端的中央处理单元；
第二判断单元，用于根据收到报文的数据内容判断所述链路协议报文是否为故障报文或故障恢复报文，以及提供判断结果。
9、如权利要求8所述的虚拟租用线路的故障监听装置，其特征在于，所述装置还进一步包括:
切换单元，用于判断虚拟租用线路上是否存在备份伪链路，并在虚拟租用线路上存在备份伪链路和第二判断单元得到报文是故障报文的结果时从主伪链路切换到备份伪链路，以及在第二判断单元得到报文是故障恢复报文的结果时从备份伪链路切换到主伪链路。
10、如权利要求9所述的虚拟租用线路的故障监听装置，其特征在于，所述装置还进一步包括:
触发单元，用于接收链路协议的监听标识，以及利用所述监听标识触发链路协议的监听功能。
CNB2007100907733A 2007-04-02 2007-04-02 虚拟租用线路的故障监听方法与装置 Expired - Fee Related CN100466564C (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CNB2007100907733A CN100466564C (zh) 2007-04-02 2007-04-02 虚拟租用线路的故障监听方法与装置
PCT/CN2008/070349 WO2008119275A1 (en) 2007-04-02 2008-02-22 Failure monitoring method and device for virtual leased line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2007100907733A CN100466564C (zh) 2007-04-02 2007-04-02 虚拟租用线路的故障监听方法与装置

Publications (2)

Publication Number Publication Date
CN101035032A CN101035032A (zh) 2007-09-12
CN100466564C true CN100466564C (zh) 2009-03-04

Family

ID=38731351

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2007100907733A Expired - Fee Related CN100466564C (zh) 2007-04-02 2007-04-02 虚拟租用线路的故障监听方法与装置

Country Status (2)

Country Link
CN (1) CN100466564C (zh)
WO (1) WO2008119275A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101916484A (zh) * 2010-07-12 2010-12-15 北京德信易税网络技术有限公司 一种用于大型超市及商场的税源监测系统及监测方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100466564C (zh) * 2007-04-02 2009-03-04 华为技术有限公司 虚拟租用线路的故障监听方法与装置
CN101820368A (zh) * 2010-04-08 2010-09-01 华为技术有限公司 以太网链路故障检测方法及装置
CN102420828B (zh) * 2011-12-15 2014-11-05 华为技术有限公司 协议管理状态的设置方法、装置和系统
US9025439B2 (en) * 2012-06-26 2015-05-05 Telefonaktiebolaget L M Ericsson (Publ) Method and system to enable re-routing for home networks upon connectivity failure
CN104394056B (zh) * 2014-11-24 2018-04-24 中国联合网络通信集团有限公司 二层隧道协议l2tp网络的保护方法和装置
CN114070707A (zh) * 2020-11-10 2022-02-18 北京市天元网络技术股份有限公司 一种互联网性能监控方法及系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1556617A (zh) * 2003-12-30 2004-12-22 港湾网络有限公司 虚拟专线业务传送承载网络接入链路故障信息的传送方法
US20060002409A1 (en) * 2004-07-02 2006-01-05 Sunil Menon Faults and status in virtual private networks
CN1788455A (zh) * 2003-08-06 2006-06-14 中兴通讯股份有限公司 一种自动保护倒换方法
US20070008982A1 (en) * 2005-07-11 2007-01-11 Cisco Technology, Inc. Redundant pseudowires between Ethernet access domains
CN1905482A (zh) * 2006-08-02 2007-01-31 华为技术有限公司 一种网络故障检测结果互通的方法和装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5193086A (en) * 1988-08-26 1993-03-09 Hitachi, Ltd. Network system having a line switching function
BR0005907A (pt) * 1999-12-30 2001-08-07 At & T Corp Método, sistema e produto de programa de computador para proporcionar transmissão de tráfego de protocolo de internet ao longo de uma via de transmissão num sistema de comunicação em banda larga
CN100466564C (zh) * 2007-04-02 2009-03-04 华为技术有限公司 虚拟租用线路的故障监听方法与装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1788455A (zh) * 2003-08-06 2006-06-14 中兴通讯股份有限公司 一种自动保护倒换方法
CN1556617A (zh) * 2003-12-30 2004-12-22 港湾网络有限公司 虚拟专线业务传送承载网络接入链路故障信息的传送方法
US20060002409A1 (en) * 2004-07-02 2006-01-05 Sunil Menon Faults and status in virtual private networks
US20070008982A1 (en) * 2005-07-11 2007-01-11 Cisco Technology, Inc. Redundant pseudowires between Ethernet access domains
CN1905482A (zh) * 2006-08-02 2007-01-31 华为技术有限公司 一种网络故障检测结果互通的方法和装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101916484A (zh) * 2010-07-12 2010-12-15 北京德信易税网络技术有限公司 一种用于大型超市及商场的税源监测系统及监测方法

Also Published As

Publication number Publication date
WO2008119275A1 (en) 2008-10-09
CN101035032A (zh) 2007-09-12

Similar Documents

Publication Publication Date Title
US8117337B2 (en) Method and device for implementing link pass through in point-to-multipoint network
CN100466564C (zh) 虚拟租用线路的故障监听方法与装置
US9270485B2 (en) Method for ethernet ring protection
CN100459601C (zh) 网络中主备网关设备的实现方法
CN100586096C (zh) 一种基于l2vpn的拓扑通知方法、系统及其装置
CN101399737A (zh) 用于以太环网的链路聚合组的保护方法及装置
CA2564916A1 (en) Method and apparatus for fault management in ethernet and multi-protocol label switching network interworking network
CN101252461A (zh) 信令传送的保护方法、装置、终端及系统
CN101005394A (zh) 保护组播转发路径的方法和系统和业务路由器
WO2011095101A1 (zh) 一种分组传送网络的线性1：n保护方法、装置和系统
CN102891769A (zh) 链路故障通告方法和设备
CN101777997A (zh) 一种实现网络链路流量切换的方法和系统
CN101908983B (zh) 以太网局部段保护的联合检测方法及系统
CN1980155A (zh) 发起媒体访问控制地址回收的方法和运营商边缘设备
CN101610181A (zh) 实现故障检测的方法、装置及系统
EP2613477B1 (en) Method for triggering route switching and service provider-end provider edge device
US20110051596A1 (en) System and method for enhancement of ethernet link loss forwarding
CN102238067A (zh) 一种快速环网保护协议环上的切换方法和装置
CN101237343A (zh) 故障时快速切换的方法及快速切换系统
CN104243199A (zh) 分组传送网的数据传输方法及保护装置
US20110116384A1 (en) Network connectivity management
CN102868616B (zh) 网络中虚mac地址表项建立的方法、路由器及系统
CN101997748A (zh) 无虚拟通道的子环控制信道阻塞协议报文的方法和系统
CN105703967A (zh) 一种检测标签交换路径连通性的方法及装置
CN101958812B (zh) 链路故障检测方法及系统

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090304

Termination date: 20170402