• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    METHOD, APPARATUS AND SYSTEM FORDOUBLE HOSTING PROTECTION SWITCHING. The invention describes a method for dual host protection switching. The method includes: when the bidirectional forward detection (BFD) state of a Pseudo Wire (PW) is DOWN, Provider Edge (PE) disables the functionOne-Port Ethernet Operation, Administration, and Maintenance (OAM)connected with a Customer Edge (CE); and the CE who started a role of master and standby switching switches service traffic to a linkstandby. The invention also provides an apparatus and corresponding system. The invention reduces the influence of network failure on the service, decreases the likelihood of service unavailability and improvesreliability of the service.
    公开号:BR112012024988A2
    申请号:R112012024988-6
    申请日:2010-10-29
    公开日:2021-06-29
    发明作者:Chunhong Li
    申请人:Zte Corporation；
    IPC主号:
    专利说明:

    “METHOD, APPARATUS AND SYSTEM FOR SWITCHING DOUBLE PROTECTION OF ACCOMMODATION”
    TECHNICAL FIELD OF THE INVENTION The present invention relates to the field of communication technology, and particularly, a method, apparatus and system for switching double protection of hosting.
    BACKGROUND OF THE INVENTION In current communication technology, more and more emphases are dedicated to the reliability and ability to process network failures; 10 communication; that is, it needs to quickly find faults and also perform service protection switching quickly, that is, master state i can be switched to standby state quickly after a fault is found in order to achieve normal service implementation. The Internet Protocol (IP) network, especially the 15th telecommunications-level Ethernet that has been popular in recent years, puts the ability to switch network protection first. The current carrier network adopts several technologies to improve the speed of checking network failure and protection switching performance, thereby reducing the influence of network failure on services, and thus, reducing the likelihood of service unavailability and improving reliability of the service. The following technologies are usually used on the Provider (PE) N-Edge side: Rapid Redirection of Traffic Nechanism (TE FRR), Virtual Private Network (VPN FRR), Operation, Administration, Maintenance (OAM), Bidirectional Routing Detection (BFD), etc. The above technologies improve the speed of network failure verification and protection switching performance in the corresponding application scenarios. It is ensured by establishing master and standby links and emulating lines (Pseudo Wires) master and standby with the same master and standby tunnels that traffic can be switched to standby quickly when the link “master, Pseudo Wire master or master tunnel has seen; failure, thus ensuring the reliability of communication. Access policies such as redundancy backup or ro Pr mo OA Ma rs Ss rs, 2/10 load sharing are usually adopted “2s in the CE access layer, or Rapid Dispersion Tree Protocol (RSTP), VRRP or other means , are used to achieve protection switching, but VRRP is a level 3 redundancy backup protocol. VPLS technology at level 2 —VPN (L2VPN) is a technology commonly used in the carrier network, and the ways for switching protection usually used in VPLS they are VPN FRR, TE FRR and so on, and these protection manners are all intended to protect the provider's network.
    In a specific implementation process, the inventor of the present invention finds that in the VPLS environment, the AC access on the CE side cannot detect the VC status, and when the network operator's VC status changes, he cannot inform the AC access side in time and allow the AC access side to switch, thereby causing slowness or even interruption of service switching.
    SUMMARY OF THE INVENTION: "One of the purposes of the present im en>”. 2 is to provide a corresponding method and apparatus and system, where in a VPLS dmbiont, the AC side can detect the change in the VC state on the PE side in time, and the AC side is unable to switch in time when the VC state is inoperative (down). The present invention provides a method for switching dual host protection, comprising the following steps of: when a forward detection state bidirectional (BFD) of a Pseudo Wire (PW) is DOWN, an EBvédor Edge (PE) disabling the Ethernet Operation, Administration, Maintenance (OAM) function of a port connected with a Client Edge (CE); which initiated a switching function of the master and standby link, switches traffic to a standby link.
    Before the PE step disables the Ethernet OAM function of: 30 a port connected to the CE when the PW's BFD status is DOWN, the method further comprises: PE judges the PW's BFD status; "
    SS NS O SA O 3/10 When the BWD status of the PW is UP, the PE enters a virtual private LAN service (VPLS) processing flow. Before the EC step that initiated a master link and standby switching function to switch traffic to a standby link, the method further comprises: the EC judges an Ethernet OAM state; when the OAM state is UP, it enters a pre-established VPLS processing flow; when the OAM state is DOWN, the service traffic switches to a standby link that has a master link and standby switching function.
    The EC step that initiated a master link and standby switching function switches traffic to a standby link comprises: the EC that initiated a master and standby link switching function, through the association between the function and Ethernet OAM, switches service traffic to a standby link with a corresponding function.
    The Provider Edge comprises: a judging module, configured to judge a bidirectional routing detection (BFD) state of a Pseudo Wire (PW); a processor module, configured for: when the judging module judges that the Provider Edge BFD status is DOWN, it disables the Ethernet OAM function of a port connected with a Client Edge (CE).
    The processor module is further configured for: when | judging module judges that the BFD status of the Provider's Edge is UP, enters. in a pre-established VPLS processing flow; when the judging module judges that the Provider Edge BFD state is DOWN, after disabling the Ethernet OAM function of the port connected to the Client Edge, it enters a VPLS processing flow. pre-established. A Client Edge comprises: a judging module, configured to judge an Ethernet OAM state; a switch module, configured so that, when the judging module judges that the OAM state is UP, it enters a pre-established VPLS processing flow; when the judging module judges that the OAM state is DOWN, it switches the service traffic to a standby link that has a master and standby link switching function. The judging module is configured to judge the OAM status of the - Ethernet according to the association between the master and standby link switching function and the Ethernet OAM. A system for switching dual protection of hosting comprises: a Provider Edge, configured to judge a state of detection of bidirectional forwarding (BFD) of a Pseudo Wire (PW); when the BFD state of the Provider Edge is DOWN, it disables the Ethernet OAM function of a port connected with a Client Edge (CE); the Client Edge, configured to judge an Ethernet OAM state; when the OAM state is UP, it enters a pre-established VPLS processing flow; when the OAM state is DOWN, it switches the service traffic to a standby link that has a master link and standby switching function. In the example of the present invention, tracking the BFD status of PW in PE, when the BFD status of PE is DOWN, the Ethernet OAM of the port that connects the PE to the CE is disabled, thus achieving association with the OAM status of Ethernet between the EC and the PE, and through the association between Ethernet OAM and the switching function of the master and standby link in the EC, the connection between the PE side and the EC side is finally. achieved, thus reducing the influence of network failure on the service, decreasing the probability of unavailability of the service and improving the reliability of the service.
    BRIEF DESCRIPTION OF THE DRAWINGS. Figure 1 is a flowchart of an example of the method for switching double protection of hosting according to the present invention; Figure 2 illustrates the structure of an example of a PE according to the present invention;
    S10 Figure 3 illustrates the structure of an example of an EC according to the present invention; Figure 4 illustrates the structure of an example of a system for switching dual protection of hosting according to the present invention.
    PREFERRED EMBODIMENTS OF THE INVENTION The realization of the purpose, function characteristics and advantages of the present invention will be further described with reference to the examples and drawings.
    It is to be understood that the specific examples described herein are used merely to explain the present invention, and not to limit the present invention.
    Referring to Figure 1, it is a flowchart of an example of the method for switching dual protection hosting according to the present invention.
    In this example, in the VPLS environment, especially when the distance between a CE and a PE is long and a transmission device is installed between the PE and the CE, the Ethernet OAM function is initiated between the CE and the PE, that is, the OAM discovery mechanism in IEEE 802.3ah or CFMemlEEE 802.1ag function, and meanwhile, a function of the Multicchassis Link Aggregation Group (MC-LAG) or other modules with master and standby link switching function is started in the EC . In this example, MC- 'LAG is used to provide link aggregation between devices, and the aggregate links have a master / standby relationship between them, and the devices will perform the switching of the master / standby link quickly when the master link is DOWN. In addition, the MC-LAG module or other modules with master link and standby switching function is associated with the Ethernet OAM function, and when the Ethernet OAM status is DOWN, the MC-LAG module or other modules with link switching function '30 mestree standby which will quickly switch the service to the standby link. The BFD function of the PW is started on the VC side on the PE, and when the BFD for PW quickly detects that the PW uplink is in the DOWN state, the Ethernet OAM function on the local AC side is quickly disabled (ie closing the OAM function) Ethernet port on the PE that is connected to the AC). Through the Ethernet OAM detection mechanism, the distal CE device can quickly detect the link problem between the CE and PE, and thus —so, MC-LAG protection measurements or other modules with master link switching function and standby are adopted to switch the local service to the standby link quickly.
    In this scenario, by tracking the BFD state of the Pseudo Wire (PW), the BFD state is associated with the Ethernet OAM on the local AC side.
    Although on the CE side, the connection between the '10 V AC side of AC is finally achieved through the association between the MC-LAG or other modules with switching function of master and standby link and Ethernet OAM.
    In this example of the present invention, PE quickly detects the change in the state of the PW by tracking the BFD status of the PW.
    When the PW status changes, PE disables the Ethernet OAM of the port connected to the CE; at this moment, the failure that occurs in the link connected with the PE can be detected quickly by starting the Ethernet OAM function between the CE and PE in the CE, and meanwhile, with the aid of the association between the MC-LAG or other modules with function of switching of the master and standby link and the Ethernet OAM in the EC, the service is quickly switched to the standby link. : Step S101, PE judges the BFD status of PW ,; when the BFD status of the PW is UP, proceed to step S103, otherwise: it continues.
    Step 102, aPE disables Ethernet OAM; PE disables the Ethernet OAM of the port connected to the CE, and then proceeds to step S105. . Step S103, the PE judges whether the Ethernet OAM of the port connected to the CÊ is disabled; PE judges the Ethernet OAM of the port connected to the CE is disabled, and if so, it continues, otherwise it proceeds to step S105.
    Step S104, PE enables the Ethernet OAM of the port connected with the CE; PE enables the Ethernet OAM of the port connected to the CE, and then proceeds to step S101. Step S105, the VPLS processing flow is performed according to the pre-established rules.
    The End symbol in Figure 1 means to enter the processing of a corresponding module after processing the VPLS module, instead of finalizing the VPLS processing flow.
    The steps above are steps on the PE end, and steps a t 10 to be described below are steps on the CE end.
    ! Step S106, the EC judges the OAM status of Ethernet; the EC judges whether the Ethernet OAM status is UP, and if so, proceed to step S108, otherwise, it continues. Step S107, the EC switches the service traffic to the standby link, the MC-LAG or other modules with switching function of master and standby link in the EC switches the service traffic to the standby link, and then proceeds to step S108 .
    Step S108, a normal service processing flow is performed.
    In the example of the present invention, tracking the BFD state of the PW in the PE, when the BFD state of the PE is DOWN, the Ethernet OAM of the port that connects the PE to the CE is disabled, thereby achieving the. association with the Ethernet OAM status between the CE and the PE, and through the association between the Ethernet OAM and MC-LAG or other modules with the master link and standby switching function in the CE, the connection between the PE side and the EC side it is finally achieved, thereby reducing the influence of network failure on the service, decreasing the probability of unavailability of the service and improving the reliability of the service.
    : Referring to Figure 2, it illustrates the structure of an example of a PE according to the present invention; : 30 abPE provided in this example comprises: a judging module 21, configured to judge the BFD status of a PW; a processor module 22, configured for: when the judging module judges that the PE BFD status is DOWN, it disables the Ethernet OAM function of a port connected with a CE.
    In addition, the processor module 22 is further configured to enter a pre-established VPLS processing flow when the judging module 21 judges that the BFD state of the PE is UP; when the judging module 21 judges that the BFD state of the PE is DOWN, after disabling the Ethernet OAM function of the port connected to the CE, it enters a pre-established VPLS processing flow.
    Referring to Figure 3, it illustrates the structure of an example of an EC according to the present invention; a CE provided in the example of the invention, comprises: a judging module 31, configured to judge an Ethernet OAM state; a switch module 32, configured for: when the judging module 31 judges that the OAM state is UP, it enters a VPLS processing flow — pre-established; when the judging module judges that the OAM state is DOWN, it switches the service traffic to a standby link from ZESS or MC-LAG.
    In addition, the judging module 31 is configured to judge the Ethernet OAM status according to the association between the MC-LAG or other modules with the master and standby link switching function and Ethernet OAM.
    Referring to Figure 4, it illustrates the structure of an example of a dual protection switching system for hosting. according to the present invention.
    This example of the present invention provides a system for switching dual protection of hosting, comprising PE 41 and CE 42: * PE 41 is configured to judge the BFD status of a PW; when the BFD state of PE is DOWN, it disables the Ethernet OAM function of an i 30 port connected with CE 42; CE 42 is configured to judge an Ethernet OAM state; when the OAM state is UP, it enters a pre-established VPLS processing flow;
    when the OAM state is DOWN, the service traffic switches to a standby link from ZESS or MC-LAG or other modules with the switching function of master and standby link.
    PE 41 is the PE provided in Example two; EC 42 is EC — supplied in Example three.
    In this example, the Ethernet OAM function is initiated between CE 42 and PE 41, that is, the OAM discoverer mechanism in IEEE 802.3ah or CFM function in IEEE 802.1ag, and meanwhile, an MC-LAG function or other modules with the master link and standby switching function starts at h 10 CE42 In this example, MC-LAG is used to provide aggregation of Õ links between devices, and the aggregated links have a master / standby relationship between them, and devices will perform the switching the master / standby link quickly when the master link is DOWN.
    Besides that, ; the MC-LAG module or other modules with the master and standby link switching function is associated with the Ethernet OAM function, and when the Ethernet OAM state is DOWN, the MC-LAG module or other modules with the switching function master and standby link will quickly switch the service to the standby link.
    The BFD function of the PW is started on the É VC side in PE 41, and when the BFD for PW quickly detects that the —uplink PW is in the DOWN state, the Ethernet OAM on the local AC side is quickly disabled (ie , closes the port's Ethernet OAM function at: PE 41, which is connected to the AC). Through the Ethernet OAM detection mechanism, the distal CE 42 can quickly detect the problem of a link between the CE 42 and PE 41, and therefore, the protection measurements of the —MC-LAG or other modules with switching function standby link are adopted to switch the local service to the standby link quickly.
    In this scenario, tracking the BFD state of the Pseudo Wire (PW), the BFD state. is associated with the Ethernet OAM on the local AC side.
    Although on the CE 42 side, the connection between the VC side and the AC side is finally achieved by associating the MC-LAG or other modules with the master and standby link switching function and the Ethernet OAM.
    The above examples are merely preferred examples of the present invention, and are not used to limit the scope of the patent of the present invention.
    Any equivalent structure or equivalent flow transformation made in accordance with the description and drawings of the present invention, or used directly or indirectly in other related technical fields, should be included within the scope of protection of the present invention.
    Industrial Applicability In the present invention, tracking the BFD status of PW in PE, when the BFD status of PE is DOWN, the Ethernet OAM of the port that connects PE »10 to EC is disabled, thus achieving the association with the state OAM $ of Ethernet between CE and PE, and through the association between Ethernet OAM and the master link and standby switching function in the EC, the connection between the PE side and the CE side is finally achieved, thereby reducing the influence failure of the network over the service, decreasing the likelihood of —unavailability of the service and improving the reliability of the service.
    权利要求:
    Claims (11)
    [1]
    1. Method for switching double protection of hosting, characterized by the fact that it comprises: when a state of detection of bidirectional routing (BFD) of a Pseudo Wire (PW) is DOWN, an Edge of the Provider (PE) disables the function of Operation, Administration, Maintenance (OAM) of Ethernet, from a port connected with a Client Edge (CE); and the EC that initiated a master link and standby switching function switches traffic to a standby link.
    [2]
    2. Method for switching double protection of hosting, according to claim 1, where before the step of the PE disables the OAM function of the Ethernet of the port connected with the CE when the BFD state of the PW is DOWN, characterized by the fact that whereas the method further comprises: PE judges the BFD status of PW; when the BFD state of the PW is UP, the PE enters a flow of. virtual private LAN service (VPLS) processing.
    [3]
    3. Method for switching double protection of hosting, according to claim 1, where before the step of the EC that initiated the switching function of master and standby link switches the traffic to the standby link, characterized by the fact that the method further comprises: the EC judges an Ethernet OAM state; When the OAM state is UP, it enters a flow of: pre-established VPLS processing; when the OAM state is DOWN, the service traffic switches: 25 to a standby link that has the function of switching the master and standby link.
    [4]
    4. Method for switching dual hosting protection, from. according to claim 1 or 3, characterized by the fact that the step of the EC that initiated the switching function of the master and standby link switches the Á 30 traffic to the standby link comprises: the EC that initiated the link switching function master and standby, through the association between the function and Ethernet OAM, switches the service traffic to a standby link with a corresponding function.
    [5]
    5. Provider edge, characterized by the fact that it comprises: a judging module, configured to judge a state of —direction detection (BFD) of a Pseudo Wire (PW); and a processor module, configured for: when the judging module judges that the PW BFD state at the Provider Edge is DOWN, it disables the Ethernet OAM function of a port connected with a Client Edge (CE).
    [6]
    6. Provider's Edge, according to claim 5, characterized by the fact that the processor module is further configured for: when the judging module judges that the PW BFD state on the Provider's Edge is UP, it enters a processing flow Pre-established NPVS; when the judging module judges that the PW BFD state on the Provider's Edge is DOWN, then disables the Ethernet OAM function of the port connected to the CE, it enters the VPLS processing flow. pre-established.
    [7]
    7. Client Edge, characterized by the fact that it comprises: 'a judging module, configured to judge the OAM status of Ethernet; a switch module, configured for: when the judging module judges that the OAM state is UP, it enters a pre-established VPLS processing flow; when the judging module judges that the OAM state is in. DOWN, switches the service traffic to a standby link that has a master link and standby switching function.
    [8]
    Â 25 8. Edge of the Client, according to claim 7, characterized by the fact that the judging module is configured to judge the OAM status of the Ethernet according to the association between the function of. switching master link and standby and Ethernet OAM.
    [9]
    9. System for switching double protection of hosting, '30 characterized by the fact that it comprises: a Provider Edge, configured to judge a state of detection of bidirectional forwarding (BFD) of a Pseudo Wire (PW);
    when the BFD status of PW on the Edge of the Provider is DOWN, it disables the Ethernet OAM function of a port connected with the Edge of the Client (CE); the Client Edge, configured to judge an Ethernet OAM state; when the OAM state is UP, it enters a pre-established processing flow —WVPLS; when the OAM state is DOWN, it switches the service traffic to a standby link that has a master link and standby switching function.
    [10]
    10. Dual protection protection switching system, according to claim 9, characterized by the fact that the Provider's Edge is the Provider's Edge described in claim 5 or 6.
    [11]
    11. Dual protection protection switching system, according to claim 9, characterized by the fact that the Client's Edge is the Client's Edge described in claim 7 or 8.
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CN100403689C|2005-05-16|2008-07-16|华为技术有限公司|Method for detecting Ethernet user line state|
    JP4542045B2|2006-01-24|2010-09-08|アラクサラネットワークス株式会社|Data communication apparatus and method|
    CN100459531C|2006-06-28|2009-02-04|华为技术有限公司|Method for notifying pseudo-lines fault based on bidirectional transmission detecting protocol|
    US8374078B2|2007-12-21|2013-02-12|Cisco Technology, Inc.|Active fault management for metro Ethernet service over MPLS network|
    US8107386B2|2008-02-07|2012-01-31|Cisco Technology, Inc.|VPLS N-PE redundancy using pseudo wire fast failover|
    CN101267360B|2008-04-10|2010-08-18|华为技术有限公司|Pseudo failure detection method and user boundary device|
    US8004968B2|2008-12-24|2011-08-23|Cisco Technology, Inc.|Provider edge-controlled redundancy using pseudo link aggregation control protocol|
    US7961599B2|2009-03-03|2011-06-14|Alcatel Lucent|Pseudowire tunnel redundancy|
    US8144575B2|2009-06-30|2012-03-27|Juniper Networks, Inc.|Redundant pseudowires for border gateway patrol-based virtual private local area network service multi-homing environments|
    CN101645810B|2009-09-02|2012-07-11|杭州华三通信技术有限公司|Method and equipment for detecting pseudo wire |
    CN101834773A|2010-03-30|2010-09-15|中兴通讯股份有限公司|Protection method and system of virtual private LAN service |
    CN101826983A|2010-04-02|2010-09-08|中兴通讯股份有限公司|Dual-homing protection switching method, device and system|CN101800662A|2010-01-22|2010-08-11|中兴通讯股份有限公司|Double-returning protection switching method based on VPLS and system|
    CN101826983A|2010-04-02|2010-09-08|中兴通讯股份有限公司|Dual-homing protection switching method, device and system|
    CN101984606A|2010-11-15|2011-03-09|中兴通讯股份有限公司|Device-level redundancy protection method and system based on LACP|
    CN102487327B|2010-12-01|2015-05-20|中兴通讯股份有限公司|Service switch method and device|
    CN102185764B|2011-04-25|2015-04-01|中兴通讯股份有限公司|Method and device for receiving and processing OAMmessages in link layer and switch|
    US8914794B2|2011-06-30|2014-12-16|Rockwell Automation Technologies, Inc.|Multiple deployment of applications with multiple configurations in an industrial automation environment|
    CN103534985B|2011-07-26|2017-02-01|华为技术有限公司|Service load allocating method, apparatus and communication system|
    CN102571426B|2011-12-29|2015-05-20|杭州华三通信技术有限公司|Double-homing protection method and device|
    CN102820990B|2012-02-29|2015-05-13|中兴通讯股份有限公司|Method and device for switching service protection|
    CN102857362A|2012-04-20|2013-01-02|福建星网锐捷网络有限公司|Fault processing method, device and system|
    CN103516534A|2012-06-25|2014-01-15|中兴通讯股份有限公司|Method for realizing dual-homing protection switching, and home node|
    CN102739533A|2012-06-25|2012-10-17|中兴通讯股份有限公司|Method and provider edgesfor rapidly switching layer 3 virtual private network |
    CN104270231B|2014-09-05|2018-02-16|烽火通信科技股份有限公司|A kind of system and method for realizing binode interconnection pseudo-wire|
    CN105591775B|2014-10-23|2019-10-25|华为技术有限公司|A kind of operation management maintainance OAM methods, devices and systems of network|
    CN104333470B|2014-11-14|2017-10-24|新华三技术有限公司|Fault handling method and device|
    US20160149910A1|2014-11-21|2016-05-26|Ronald David Luque|Managing software keys for network elements|
    EP3232611B1|2014-12-31|2018-09-19|Huawei Technologies Co., Ltd.|Method, device and system for performing bidirectional forwarding detection on an aggregated link|
    CN106487681A|2015-08-27|2017-03-08|中兴通讯股份有限公司|A kind of state updating method and device|
    CN108206759B|2016-12-20|2021-02-09|华为技术有限公司|Method, equipment and system for forwarding message|
    CN108243114B|2016-12-26|2021-02-23|华为技术有限公司|Method, equipment and system for forwarding message|
    KR20180096277A|2017-02-21|2018-08-29|삼성전자주식회사|The method and apparatus for controlling power of transmition in wireless communication system|
    CN108768793B|2018-07-11|2021-09-17|郑州云海信息技术有限公司|Storage dual-active link fault testing method and device|
    CN108900415B|2018-08-31|2021-06-22|华东计算技术研究所（中国电子科技集团公司第三十二研究所）|Master-slave equipment switching method and system under MLAG interface failure|
    CN111385182A|2018-12-29|2020-07-07|中兴通讯股份有限公司|Traffic transmission method and device and physical topological structure|
    CN109995651B|2019-03-28|2021-05-14|新华三技术有限公司|Pseudo wire establishing method and device|
    US11223564B2|2019-09-11|2022-01-11|Cisco Technology, Inc.|Unequal cost load balancing for redundant virtualized fabric edge devices|
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    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    CN201010142584A|CN101826983A|2010-04-02|2010-04-02|Dual-homing protection switching method, device and system|
    CN201010142584.8|2010-04-02|
    PCT/CN2010/078262|WO2011120301A1|2010-04-02|2010-10-29|Method, apparatus and system for dual-homing protection switching|
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