WO2014205819A1 - Procédé, nœud et appareil d'établissement de liaison - Google Patents

Procédé, nœud et appareil d'établissement de liaison Download PDF

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Publication number
WO2014205819A1
WO2014205819A1 PCT/CN2013/078467 CN2013078467W WO2014205819A1 WO 2014205819 A1 WO2014205819 A1 WO 2014205819A1 CN 2013078467 W CN2013078467 W CN 2013078467W WO 2014205819 A1 WO2014205819 A1 WO 2014205819A1
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WO
WIPO (PCT)
Prior art keywords
node
link
initialization
response message
configuration parameters
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PCT/CN2013/078467
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English (en)
Chinese (zh)
Inventor
席辉
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2013/078467 priority Critical patent/WO2014205819A1/fr
Priority to CN201380001507.2A priority patent/CN103733600A/zh
Publication of WO2014205819A1 publication Critical patent/WO2014205819A1/fr

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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
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, a node, and a device for establishing a link.
  • SCTP Stream Control Transmission Protocol
  • the method for detecting whether the link is faulty by the SCTP includes two scenarios: 1. When there is no data transmission on the link, the fault detection can be performed according to the heartbeat message sent between the two nodes; 2. When there is data transmission on the link, Fault detection can be performed based on data sent between two nodes.
  • the SCTP protocol can use different algorithms to calculate the link failure duration.
  • the detection link failure time calculated by the node A using the corresponding algorithm is 60 seconds
  • the detection link failure time calculated by the node B using the corresponding algorithm is 30 seconds.
  • the node B is to the node A. If the sent heartbeat packet does not receive a response, Node B considers that the link is faulty at this time, and then closes the link. However, Node A is still in the state of detecting the link during this period, so the heartbeat will still be sent to Node B.
  • the node A If the heartbeat message sent by the node A to the node B receives a response when it is greater than 30 seconds and less than 60 seconds, the node A considers that the link has returned to normal, wherein the heartbeat message is used to monitor the machine network storage. Operating status. However, because Node B has made a link failure judgment, the system performs subsequent processing according to the link failure, thus reducing the reliability of the link. Summary of the invention
  • a first aspect of the present invention provides a method for establishing a link, where the method includes: sending, by a first node, a first initialization packet to a second node, where the first initialization packet is used to indicate that the first a link between the node and the second node;
  • the first node receives the first initialization response message sent by the second node; if the first initialization response message carries the configuration parameter of the second node that is the same as the configuration parameter of the first node, or The first initialization response packet carries a first identifier, and the first node establishes a link with the second node, where the first identifier is used to indicate that the first node is configured according to the a configuration parameter of the first node, establishing a link with the second node;
  • the first node uses the configuration parameter of the second node as the first node. Configuration parameters.
  • the method further includes:
  • the first node sends a link termination message to the second node, where the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed;
  • the first node sends a second initialization message to the second node, where the second initialization message is used to indicate that a link between the first node and the second node is established;
  • the first node receives the second initialization response message sent by the second node, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed;
  • the first node establishes a link with the second node according to a configuration parameter of the first node.
  • the method further includes:
  • the first node confirms that the configuration parameter of the second node meets the first preset condition
  • the first node determines whether the configuration parameter of the second node is the same as the configuration parameter of the first node, where the first preset condition is a parameter type value of the second node.
  • the parameter values of the first node are equal, and the parameter type value belongs to one of the configuration parameters.
  • the configuration parameter belongs to the first initial
  • the first identifier occupies the flag block carried by the first initialization response The highest two bits of Chunk F lags.
  • the first node is a client node
  • the second node is a server node.
  • a second aspect of the present invention provides a method for establishing a link, where the method includes: receiving, by a second node, a first initialization packet sent by a first node, where the first initialization packet is used to indicate that the first a link between the node and the second node; the second node sends a first initialization response message to the first node, where the first initialization response message carries the configuration parameter of the second node Or the first identifier, the first identifier is used to indicate that the first node establishes a link with the second node according to the configuration parameter of the first node;
  • the second node establishes a link with the first node.
  • the method before the second node establishes a link with the first node, the method further includes:
  • the second node receives a link termination message sent by the first node, where the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed;
  • the second node Receiving, by the second node, the second initialization packet sent by the first node, where the second initialization packet is used to indicate establishing a link between the first node and the second node;
  • the second node sends a second initialization response message to the first node, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the configuration parameter belongs to the first initialization response packet.
  • the first identifier occupies the flag block carried by the first initialization response The highest two bits of Chunk Flags.
  • the first node is a client node
  • the second node is a server node.
  • a third aspect of the present invention provides a client node, where the client node includes: a sending module, configured to send a first initialization packet to a second node, where the first initialization packet is used to indicate that the a first module and a second node; a receiving module, configured to receive a first initialization response message sent by the second node, and a link module, configured to: if the first initialization response message carries a configuration parameter of the second node with the same configuration parameter of the first node, or the first initialization response packet carries a first identifier, and establishes a link with the second node, where the first The identifier is used to indicate that the first node establishes a link with the second node according to the configuration parameter of the first node;
  • An update module configured to: if the first initialization response message carries a configuration parameter of a second node that is different from a configuration parameter of the first node, use a configuration parameter of the second node as the first node Configuration parameters.
  • the sending module is further configured to send a link termination message to the second node, where the link termination message is used to indicate to close a link between the first node and the second node at a current moment;
  • the sending module is further configured to send a second initialization packet to the second node, where The second initialization packet is used to indicate that a link between the first node and the second node is established.
  • the receiving module is further configured to receive a second initialization response message sent by the second node, where the second initialization response message is used to indicate that the link between the first node and the second node is agreed. set up;
  • the linking module is further configured to establish a link with the second node according to the configuration parameter of the first node.
  • the client node further includes:
  • a confirmation module configured to determine whether the configuration parameter of the second node is the same as the configuration parameter of the first node, where the configuration parameter of the second node meets a first preset condition, where the first pre- The condition is that the parameter type value of the second node is equal to the parameter type value of the first node, and the parameter type value belongs to one of the configuration parameters.
  • the configuration parameter belongs to the first initial
  • the first identifier occupies the flag block carried by the first initialization response The highest two bits of Chunk Flags.
  • the first node is a client node
  • the second node is a server node.
  • a fourth aspect of the present invention provides a server node, where the server node includes: a receiving unit, configured to receive a first initialization packet sent by the first node, where the first initialization packet is used to indicate establishment Describe a link between the first node and the second node;
  • a sending unit configured to send a first initialization response message to the first node, where the first initialization response message carries a configuration parameter or a An identifier, the first identifier is used to indicate that the first node establishes a link with the second node according to a configuration parameter of the first node;
  • a linking unit configured to establish a link with the first node.
  • the receiving unit is further configured to receive a link termination message sent by the first node, where the link termination message is used to indicate to close a link between the first node and the second node at a current moment;
  • the receiving unit is further configured to receive a second initialization message sent by the first node, where the second initialization message is used to indicate establishing a link between the first node and the second node;
  • the sending unit is further configured to send a second initialization response message to the first node, where the second initialization response message is used to indicate that the link between the first node and the second node is agreed. set up.
  • the configuration parameter belongs to the first initialization response packet.
  • the first identifier occupies the flag block carried by the first initialization response The highest two bits of Chunk Flags.
  • the first node is a client node
  • the second node is a server node.
  • a fifth aspect of the present invention provides a client device, where the client device includes: a transmitter, configured to send a first initialization message to a second node, where the first initialization message is used to indicate that the a first node and a second node; a receiver, configured to receive a first initialization response message sent by the second node, and a processor, configured to: if the first initialization response message carries a configuration parameter of the second node with the same configuration parameter of the first node, or the first initialization response packet carries a first identifier, and establishes a link with the second node, where The first identifier is used to indicate that the first node establishes a link with the second node according to the configuration parameter of the first node, and if the first initialization response packet carries the The configuration parameter of the second node with different configuration parameters of the first node is used as the configuration parameter of the first node.
  • the transmitter is further configured to send a link termination message to the second node, where the link termination message is used to indicate to close a link between the first node and the second node at a current moment;
  • the transmitter is further configured to send a second initialization packet to the second node, where the second initialization packet is used to indicate establishing a link between the first node and the second node;
  • the receiver is further configured to receive a second initialization response message sent by the second node, where the second initialization response message is used to indicate that the link between the first node and the second node is agreed. set up;
  • the processor is further configured to establish a link with the second node according to the configuration parameter of the first node.
  • the processor is further configured to: determine, when the configuration parameter of the second node meets the first preset condition, whether the configuration parameter of the second node is the same as the configuration parameter of the first node, where The first preset condition is that the parameter type value of the second node is equal to the parameter type value of the first node, and the parameter type value belongs to one of the configuration parameters.
  • the configuration parameter belongs to the first initial
  • the first identifier occupies the flag block carried by the first initialization response The highest two bits of Chunk Flags.
  • the first node is a client node
  • the second node is a server node. .
  • the sixth aspect of the present invention further provides a server device, where the server device includes: a receiver, configured to receive a first initialization packet sent by the first node, where the first initialization packet is used to indicate establishment. a link between the first node and the second node;
  • a transmitter configured to send a first initialization response message to the first node, where the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used by Instructing the first node to establish a link with the second node according to a configuration parameter of the first node;
  • a processor configured to establish a link with the first node.
  • the receiver is further configured to receive a link termination message sent by the first node, where the link termination message is used to indicate to close a link between the first node and the second node at a current moment;
  • the receiver is further configured to receive a second initialization packet sent by the first node, where the second initialization packet is used to indicate establishing a link between the first node and the second node;
  • the transmitter is further configured to send a second initialization response message to the first node, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed. .
  • the configuration parameter belongs to the first initialization response packet.
  • the first identifier occupies the flag block carried by the first initialization response The highest two bits of Chunk Flags.
  • the first node is a client node
  • the second node is a server node.
  • the first node can be configured to receive the first initialization response packet carrying the configuration parameter of the second node from the second node, so that the detection link failure time of the first node and the second node are equal, and the solution is solved.
  • the misjudgment of the link state caused by the inconsistent link failure time between the first node and the second node improves the reliability of the link.
  • FIG. 1 is a schematic flowchart of a method for establishing a link according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of a method for establishing a link according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram 1 of a process of establishing a link between a first node and a second node according to an embodiment of the present invention
  • FIG. 5 is a second schematic diagram of a process of establishing a link between a first node and a second node according to an embodiment of the present invention
  • FIG. 6 is a schematic flow chart of another method for establishing a link according to an embodiment of the present invention.
  • FIG. 7 is a schematic flow chart of another method for establishing a link according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram 1 of a node according to an embodiment of the present invention
  • FIG. 9 is a schematic structural diagram 2 of a node according to an embodiment of the present disclosure
  • 10 is a schematic structural diagram of a second node according to an embodiment of the present invention
  • FIG. 1 is a schematic structural diagram of a first device according to an embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of a second device according to an embodiment of the present invention.
  • An embodiment of the present invention provides a method for establishing a link. As shown in FIG. 1, the method includes:
  • the first node sends a first initialization message to the second node.
  • the first initialization message is used to indicate that a link between the first node and the second node is established.
  • S CTP is a reliable transport protocol that provides stable, orderly data delivery between two nodes.
  • the S CTP protocol uses the corresponding algorithm to calculate the detection link fault duration in different scenarios: 1.
  • the fault detection can be performed according to the heartbeat message sent between the two nodes;
  • fault detection can be performed based on the data sent between the two nodes.
  • the detection link failure time length is calculated according to the formula (1);
  • the detection link failure time length is calculated according to the formula (2):
  • Td RTO+Min[2*RTO, RTO.Max] +Min [4*RTO , RTO.Max] ,
  • T i is the length of the detected link failure calculated without data transmission on the link
  • T d Refers to the detection chain calculated when there is data transmission on the link.
  • the length of the SCTP retransmission timer is the duration of the SCTP retransmission timer.
  • the RTO. interval is the initial duration of the SCTP retransmission timer.
  • the RTO. Max is the maximum duration of the SCTP retransmission timer.
  • a ss oc iati on. Max. Re tr an s refers to the maximum number of coupled retransmissions of the SCTP link.
  • Min[A, B] refers to the smaller of A and B, 2 ⁇ (As sociat Ion. Max. Retrans ) refers to the Association. Max. Retrans power of 1.
  • node A When two nodes detect each other whether the link is faulty, for example, when node A sends a heartbeat to node B, node B also sends a heartbeat to node A. Since node A and node B have different parameter configurations, According to the formula, the link failure time is not restored, and the link with the shorter link failure time still reports the link failure to the system. Therefore, it is easy to judge the recovered link as a fault.
  • a method for establishing a link enables the detection link failure time between two nodes to be equal, thereby preventing the first node and the second node from being inconsistent due to inconsistent link failure durations.
  • the misjudgment of the state improves the reliability of the link.
  • the first node sends a first initialization message to the second node.
  • the first node is a client node
  • the second node is a server node.
  • the first initialization packet is an INIT packet sent by the client node to the server node, where the first initialization packet is used to indicate that the first node is established. The link between the second nodes.
  • the first node receives a first initialization response message sent by the second node. After the first node sends the first initialization message to the second node, the first node receives the first initialization response message sent by the second node.
  • the first initialization response message can be regarded as being used to respond to the first initialization message, which will not be described later.
  • the first initialization response packet carries the configuration parameter of the second node that is the same as the configuration parameter of the first node, or the first initialization response packet carries the first identifier, the first node is established between the second node and the second node. Link.
  • the first identifier is used to indicate that the first node is configured according to the configuration parameter of the first node. Establish a link with the second node.
  • the first node After the first node receives the first initialization response message sent by the second node, the first node needs to confirm whether the first initialization response message carries the configuration parameter or the first identifier of the second node, where the first identifier is used to indicate The first node establishes a link with the second node according to the configuration parameter of the first node.
  • the first node parses the received first initialization response message, and if the first node can parse the first initialization response message, the second node carries the second The configuration parameter of the node, the first node confirms whether the configuration parameter of the second node is the same as the configuration parameter of the first node.
  • the configuration parameter of the second node carried in the first initialization response packet is the same as the configuration parameter of the first node, it indicates that the detection link failure time of the first node is equal to the detection link failure time of the second node, that is, There is no misjudgment of the link state between the first node and the second node due to detecting the length of the link failure, and the first node directly establishes a link with the second node.
  • the first initialization response message carries the first identifier. Since the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node, the first node establishes a link with the second node. It will be described in detail in the following embodiments, and details are not described herein again.
  • the configuration parameters include the link heartbeat interval, the initial duration of the retransmission timer, the maximum duration of the retransmission timer, the minimum duration of the retransmission timer, and the maximum number of coupled retransmissions of the link.
  • the first initialization response message carries the configuration parameter of the second node, and the location of the configuration parameter of the second node in the first initialization response message is described in detail in the following embodiments, where Narration.
  • the first node uses the configuration parameter of the second node as the configuration parameter of the first node.
  • the first node After receiving the first initialization response packet sent by the second node, the first node parses the The first initialization response message received, if the first node can parse that the first initialization response message carries the configuration parameter of the second node, the first node confirms the configuration parameter of the second node and the first node Are the configuration parameters the same?
  • the configuration parameter of the second node carried in the first initialization response packet is different from the configuration parameter of the first node, it indicates that the detection link failure time of the first node is different from the detection link failure time of the second node, that is, the first A misjudgment of the link state due to the detection of the link failure time may occur between a node and the second node.
  • the first node takes the configuration parameter of the second node as the configuration parameter of the first node, and re-establishes the link between the first node and the second node.
  • the embodiment of the present invention provides a method for establishing a link, where the first node sends a first initialization message to the second node, where the first initialization message is used to indicate that the link between the first node and the second node is established.
  • the first node receives the first initialization response message sent by the second node, where the first initialization response message carries the configuration parameter of the second node that is the same as the configuration parameter of the first node, or the first initialization response message.
  • the first node Carrying the first identifier, the first node establishes a link with the second node, where the first identifier is used to indicate that the first node establishes a link with the second node according to the configuration parameter of the first node, and if The first initialization response message carries a configuration parameter of the second node different from the configuration parameter of the first node, and the first node uses the configuration parameter of the second node as the configuration parameter of the first node.
  • An embodiment of the present invention provides a method for establishing a link. As shown in FIG. 2, the method includes:
  • the first node sends a first initialization packet to the second node.
  • the first initialization message is used to indicate that a link between the first node and the second node is established.
  • SCTP is a reliable transport protocol that provides stable, orderly data delivery between two nodes.
  • the SCTP protocol uses the corresponding algorithm to calculate the detection link fault duration in different scenarios: 1. When there is no data transmission on the link, the fault detection can be performed according to the heartbeat packet sent between the two nodes; 2. When the link is on the link When there is data transmission, fault detection can be performed based on the data sent between the two nodes.
  • node A When two nodes detect each other whether the link is faulty, for example, when node A sends a heartbeat to node B, node B also sends a heartbeat to node A. Since node A and node B have different parameter configurations, According to the formula, the link failure time is not restored, and the link with the shorter link failure time still reports the link failure to the system. Therefore, it is easy to judge the recovered link as a fault.
  • the process of establishing a link between the first node and the second node is as shown in FIG. 3, the first node is a client node, and the second node is a server node.
  • the first node first sends an INIT message to the second node, and after receiving the INIT message from the first node, the second node sends an INIT ACK message to the first node.
  • the first node sends a COOKIE ECHO message to the second node, and after receiving the COOKIE ECHO message from the first node, the second node sends a COOKIE ACK to the first node.
  • a link between the first node and the second node is established.
  • a method for establishing a link enables the detection link failure time between two nodes to be equal, thereby preventing the first node and the second node from being inconsistent due to inconsistent link failure durations.
  • the misjudgment of the status improves the reliability of the link and improves the performance of the product.
  • the first node sends a first initialization message to the second node.
  • the first node is a client node
  • the second node is a server node.
  • the first initialization packet is an INIT packet sent by the client node to the server node, where the first initialization packet is used to indicate that the first node is established. The link between the second nodes.
  • the first node receives a first initialization response message sent by the second node. After the first node sends the first initialization message to the second node, the first node receives the first initialization response message sent by the second node.
  • the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node.
  • the configuration parameters include the link heartbeat interval, the initial duration of the retransmission timer, the maximum duration of the retransmission timer, the minimum duration of the retransmission timer, and the maximum number of coupled retransmissions of the link.
  • the configuration parameter belongs to the unacknowledged parameter carried in the first initialization response packet.
  • the unrecognized parameter Unrecognized Parameter is located in the optional/variable length parameter Optional/Variable-Length Parameters, where Optional/Variable-Length Parameters ⁇ RFC 4960 includes: IPv4 (Internet Protocol vers ion 4) , the fourth edition of the Internet Protocol) address, IPv6 (Internet Protocol version 6, Internet Protocol) address, unrecognized parameter Unrecognized Parameter, host name address Host Name Address and other parameters.
  • the unrecognized parameter Unrecognized Parameter has a length of 8 bytes.
  • the unrecognized parameter Unrecognized Parameter has the following format in the RFC 4960 protocol:
  • the length of the unconfirmed parameter Unrecognized Parameter is 8 bytes.
  • the RFC 4960 protocol does not specify a parameter to be written in the unrecognized parameter Unrecognized Parameter, and the first initialization response message provided by the embodiment of the present invention carries the configuration parameter of the second node, and the configuration parameter setting of the second node Within the unrecognized parameter Unrecognized Parameter. Therefore, the format in the unconfirmed parameter Unrecognized Parameter ⁇ RFC 4960 protocol is modified, and the configuration parameter of the second node is set in the unrecognized parameter Unrecognized Parameter.
  • the parameter Unrecognized Parameter includes the initial duration of the SCTP retransmission timer RTO. Initial, the minimum duration of the SCTP retransmission timer RTO. M in, the maximum duration of the SCTP retransmission timer RTO. Max, the maximum number of coupled retransmissions of the SCTP link Association Max. Retrans, the maximum retransmission path of the SCTP link Path. Max. Retrans, SCTP link heartbeat interval HB. interval
  • the specific format of the unrecognized parameter is not limited to the above format, and may be another format that carries the configuration parameter of the second node, which is not limited by the present invention.
  • the first node determines whether the configuration parameter of the second node is the same as the configuration parameter of the first node.
  • the first preset condition is that the parameter type value of the second node is equal to the parameter type value of the first node, and the parameter type value belongs to one of the configuration parameters. That is, the Type value of the second node is equal to the Type value of the first node. That is, the Type value of the inner layer in the specific format of the unrecognized parameter of the configuration parameter of the first node and the type of the inner and outer layers in the specific format of the unrecognized parameter of the second node. The values are equal.
  • the first node cannot parse the configuration parameter of the second node carried in the first initialization response message, and the first node does not need to determine the second node.
  • the configuration parameters are the same as the configuration parameters of the first node.
  • the first node can continue to establish a link with the second node, the first node cannot read the configuration parameters of the second node, and the state of the link cannot be avoided as a link failure.
  • the first node establishes a link with the second node.
  • the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node.
  • the first node After the first node receives the first initialization response message sent by the second node, the first node needs to confirm whether the first initialization response message carries the configuration parameter or the first identifier of the second node, where the first identifier is used to indicate The first node establishes a link with the second node according to the configuration parameter of the first node.
  • the first node parses the received first initialization response message, and if the first node can parse the first initialization response message, the second node carries the second The configuration parameter of the node, the first node confirms whether the configuration parameter of the second node is the same as the configuration parameter of the first node.
  • the configuration parameter of the second node carried in the first initialization response packet is the same as the configuration parameter of the first node, it indicates that the detection link failure time of the first node is equal to the detection link failure time of the second node, that is, There is no misjudgment of the link state between the first node and the second node due to detecting the length of the link failure, and the first node directly establishes a link with the second node.
  • the first initialization response message carries the first identifier. Since the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node, the first node establishes a link with the second node. It will be described in detail in the following embodiments, and details are not described herein again.
  • the first identifier occupies the highest two bits of the flag Chunk F l a g s carried in the first initialization response message.
  • the first flag indicates that the first two bits of the first initialization response message flag block Chunk F l a g s are set to 0x 1 0.
  • 1 0 represents an instruction to skip this parameter and continue processing, and the first identifier is used to instruct the first node to skip the configuration parameter of the second node to continue establishing the link between the first node and the second node.
  • the first two identifiers of the first initialization response message flag block Chunk F lags are set with the first identifier, so that the first node cannot receive the first initialization response message sent by the second node. Confirm the unconfirmed carried in the second node
  • the parameter, the specific value of the unconfirmed parameter cannot be read, and the subsequent processing can be continued, the link between the first node and the second node is established, and the compatibility between the first node and the second node is improved.
  • the first node uses the configuration parameter of the second node as the configuration parameter of the first node.
  • the first node After receiving the first initialization response message sent by the second node, the first node parses the received first initialization response message, and if the first node can parse the first initialization response message, the second node carries the second node.
  • the configuration parameter, the first node confirms whether the configuration parameter of the second node is the same as the configuration parameter of the first node.
  • the configuration parameter of the second node carried in the first initialization response packet is different from the configuration parameter of the first node, it indicates that the detection link failure time of the first node is different from the detection link failure time of the second node, that is, the first A misjudgment of the link state due to the detection of the link failure time may occur between a node and the second node.
  • the first node takes the configuration parameter of the second node as the configuration parameter of the first node, and re-establishes the link between the first node and the second node.
  • the first node sends a link termination message to the second node.
  • the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed.
  • the first node After the first node uses the configuration parameter of the second node as the configuration parameter of the first node, the first node re-establishes the link between the first node and the second node. First, the first node sends a link termination message to the second node, terminating the link establishment of the first node and the second node.
  • the first node sends a link termination message to the second node to terminate the link establishment of the first node and the second node.
  • the first node sends a link termination message to the second node by using the ABORT/S HUTDOWN command, thereby terminating the link establishment of the first node and the second node.
  • the first node sends a second initialization packet to the second node.
  • the second initialization message is used to indicate that a link between the first node and the second node is established.
  • the first node sends a link termination message to the second node, and after the link between the first node and the second node is terminated, the first node sends a second initialization message to the second node, and re-establishes the first node and the first node.
  • the second initialization message is an INIT message sent by the client node to the server node, and the second initialization message is used to indicate that the link between the first node and the second node is established.
  • the first node receives a second initialization response message sent by the second node.
  • the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the second initialization response packet described in the embodiment of the present invention may carry the configuration parameter of the second node or the configuration parameter of the second node, which is not limited by the present invention.
  • the second initialization response can be regarded as being used to respond to the second initialization message, which will not be described later.
  • the first node establishes a link with the second node according to the configuration parameter of the first node.
  • the first node After receiving the second initialization response message sent by the second node, the first node establishes a link with the second node according to the configuration parameter of the first node.
  • the first node provided by the embodiment of the present invention is a client node
  • the second node is a server node.
  • the client node may be a wired or wireless user equipment such as a mobile phone or a tablet computer
  • the server node may be a base station, and the present invention is not limited.
  • the first node confirms that the configuration parameter of the second node meets a preset condition, and the configuration parameter of the second node is the same as the configuration parameter of the first node, and the link is established between the first node and the second node.
  • the process is shown in Figure 4.
  • the first node is a client node and the second node is a server node.
  • the first node first sends a first initialization message to the second node, and after receiving the first initialization message from the first node, the second node sends a first initialization response message to the first node, where the first initialization
  • the response message carries the configuration parameters of the second node.
  • the first node confirms that the configuration parameter of the second node meets the first preset condition, and the configuration parameter of the second node is the same as the configuration parameter of the first node, Then, the first node sends a COOK IE ECHO message to the second node, and after receiving the C OOK IE ECH O message from the first node, the second node sends a COOK IE ACK message to the first node. Thereby, a link between the first node and the second node is established.
  • the first node confirms that the configuration parameter of the second node meets the first preset condition, and the configuration parameter of the second node is different from the configuration parameter of the first node, and the link is established between the first node and the second node.
  • the process is shown in Figure 5.
  • the first node is the client node and the second node is the server node.
  • the first node first sends a first initialization message to the second node, and after receiving the first initialization message from the first node, the second node sends a first initialization response message to the first node, where the first initialization
  • the response message carries the configuration parameters of the second node.
  • the first node confirms that the configuration parameter of the second node meets the first preset condition, and the configuration parameter of the second node is different from the configuration parameter of the first node, and then the first node configures the configuration parameter of the second node as the configuration of the first node.
  • the first node sends a link termination message to the second node to terminate the link establishment. After the link is re-established, the first node first sends a second initialization message to the second node, and after receiving the second initialization message from the first node, the second node sends a second initialization response message to the first node.
  • the first node sends a C OOK I E E CHO message to the second node, and after receiving the CO OK I E ECHO message from the first node, the second node sends a COOK I E ACK message to the first node. Thereby, a link between the first node and the second node is established.
  • the embodiment of the present invention provides a method for establishing a link, where the first node sends a first initialization message to the second node, where the first initialization message is used to indicate that the link between the first node and the second node is established.
  • the first node receives the first initialization response message sent by the second node, where the first initialization response message carries the configuration parameter of the second node that is the same as the configuration parameter of the first node, or the first initialization response message.
  • the first node Carrying the first identifier, the first node establishes a link with the second node, where the first identifier is used to indicate that the first node establishes a link with the second node according to the configuration parameter of the first node, and if The first initialization response message carries a configuration parameter of the second node different from the configuration parameter of the first node, and the first node uses the configuration parameter of the second node as the configuration parameter of the first node.
  • the first node can receive the first initialization response message from the second node that carries the configuration parameter of the second node, the detection link failure time of one node and the second node is equal, which solves the misjudgment of the link state caused by the inconsistent link failure time between the first node and the second node, and improves the reliability of the link. .
  • An embodiment of the present invention provides a method for establishing a link. As shown in FIG. 6, the method includes:
  • the second node receives the first initialization packet sent by the first node.
  • the first initialization message is used to indicate that a link between the first node and the second node is established.
  • S CTP is a reliable transport protocol that provides stable, orderly data delivery between two nodes.
  • the S CTP protocol uses the corresponding algorithm to calculate the detection link fault duration in different scenarios: 1. When there is no data transmission on the link, the fault detection can be performed according to the heartbeat message sent between the two nodes; When there is data transmission on the road, fault detection can be performed based on the data sent between the two nodes.
  • node A When two nodes detect each other whether the link is faulty, for example, when node A sends a heartbeat to node B, node B also sends a heartbeat to node A. Since node A and node B have different parameter configurations, According to the formula, the link failure time is not restored, and the link with the shorter link failure time still reports the link failure to the system. Therefore, it is easy to judge the recovered link as a fault.
  • a method for establishing a link enables the detection link failure time between two nodes to be equal, thereby preventing the first node and the second node from being inconsistent due to inconsistent link failure durations.
  • the misjudgment of the status improves the reliability of the link and improves the performance of the product.
  • the second node receives the first initialization packet sent by the first node.
  • the first node is a client node
  • the second node is a server node.
  • the first initialization packet is an INIT packet sent by the client node to the server node, where the first initialization packet is used to indicate that the first node is established. The link between the second nodes.
  • the second node sends a first initialization response message to the first node.
  • the first initialization response packet carries the configuration parameter of the second node or the first
  • the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node.
  • the second node After receiving the first initialization packet sent by the first node, the second node sends a first initialization response packet to the first node.
  • the first initialization response message carries a configuration parameter or a first identifier of the second node.
  • the configuration parameters include the link heartbeat interval, the initial duration of the retransmission timer, the maximum duration of the retransmission timer, the minimum duration of the retransmission timer, and the maximum number of coupled retransmissions of the link.
  • the first node is instructed to establish a link with the second node according to the configuration parameter of the first node.
  • the first initialization response message carries the configuration parameter of the second node, and the location of the configuration parameter of the second node in the first initialization response message is described in detail in the following embodiments, where Narration.
  • the second node establishes a link with the first node.
  • the second node After the second node sends the first initialization response message carrying the configuration parameter of the second node to the first node, establishing a link with the first node.
  • An embodiment of the present invention provides a method for establishing a link, where a first initialization packet sent by a first node is received by a second node, where the first initialization packet is used to indicate that a chain between the first node and the second node is established.
  • the second node sends a first initialization response message to the first node, where the first initialization response message carries the configuration parameter or the first identifier of the second node, where the first identifier is used to indicate that the first node is according to the first
  • the configuration parameters of the node establish a link with the second node, and the second node establishes a link with the first node.
  • the detection link failure time of the first node and the second node are equal, and the solution is solved.
  • the misjudgment of the link state caused by the inconsistent link failure time between the first node and the second node improves the reliability of the link.
  • An embodiment of the present invention provides a method for establishing a link. As shown in FIG. 7, the method includes:
  • the second node receives the first initialization packet sent by the first node.
  • the first initialization message is used to indicate that a link between the first node and the second node is established.
  • S CTP is a reliable transport protocol that provides stable, orderly data delivery between two nodes.
  • the S CTP protocol uses the corresponding algorithm to calculate the detection link fault duration in different scenarios: 1. When there is no data transmission on the link, the fault detection can be performed according to the heartbeat packet sent between the two nodes; 2. When the link When there is data transmission, fault detection can be performed based on the data sent between the two nodes.
  • node A When two nodes detect each other whether the link is faulty, for example, when node A sends a heartbeat to node B, node B also sends a heartbeat to node A. Since node A and node B have different parameter configurations, According to the formula, the link failure time is not restored, and the link with the shorter link failure time still reports the link failure to the system. Therefore, it is easy to judge the recovered link as a fault.
  • a method for establishing a link enables the detection link failure time between two nodes to be equal, thereby preventing the first node and the second node from being inconsistent due to inconsistent link failure durations.
  • the misjudgment of the status improves the reliability of the link and improves the performance of the product.
  • the second node receives the first initialization packet sent by the first node.
  • the first node is a client node
  • the second node is a server node.
  • the first initialization packet is an INIT packet sent by the client node to the server node, where the first initialization packet is used to indicate that the first node is established. The link between the second nodes.
  • the second node sends a first initialization response message to the first node.
  • the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node.
  • the second node After receiving the first initialization packet sent by the first node, the second node sends a first initialization response packet to the first node.
  • the first initialization response message carries a configuration parameter or a first identifier of the second node.
  • the configuration parameters include the link heartbeat interval and the retransmission timer.
  • the first identifier is used to indicate that the first node establishes a relationship with the second node according to the configuration parameter of the first node.
  • the first identifier occupies the highest two bits of the Chunk Flags of the flag block carried in the first initialization response message. .
  • the configuration parameter belongs to one of the unrecognized parameters Unrecognized Parameter carried in the first initialization response message.
  • the unrecognized parameter Unrecognized Parameter is located in the optional/variable length parameter Optional/Variable-Length Parameters, where Optional/Variable-Length Parameters ⁇ RFC 4960 includes: IPv4 (Internet Protocol vers ion 4) , the fourth edition of the Internet Protocol) address, IPv6 (Internet Protocol version 6, Internet Protocol) address, unrecognized parameter Unrecognized Parameter, host name address Host Name Address and other parameters.
  • the unrecognized parameter Unrecognized Parameter has a length of 8 bytes.
  • the unrecognized parameter Unrecognized Parameter has the following format in the RFC 4960 protocol:
  • the length of the unconfirmed parameter Unrecognized Parameter is 8 bytes.
  • the RFC 4960 protocol does not specify a parameter to be written in the unrecognized parameter Unrecognized Parameter, and the first initialization response message provided by the embodiment of the present invention carries the configuration parameter of the second node, and the second node The configuration parameters are set within the unconfirmed parameter Unrecognized Parameter. Therefore, the format in the unconfirmed parameter Unrecognized Parameter ⁇ RFC 4960 protocol is modified, and the configuration parameter of the second node is set in the unrecognized parameter Unrecognized Parameter.
  • T e 8 Length ⁇ ?.4
  • Unrecognized Parameter has a value of 8 and a length of 32 bytes.
  • the inner parameter type value is 8 and the length is 24 bytes.
  • the unrecognized parameter includes the initial duration of the SCTP retransmission timer.
  • RTO. Initial, SCTP retransmission timer minimum duration
  • RTO. Min SCTP retransmission timer maximum duration
  • the specific format of the unrecognized parameter is not limited to the above format, and may be another format that carries the configuration parameter of the second node, which is not limited by the present invention.
  • the first identifier occupies the top two bits of the flag Chunk Flags carried in the first initialization response message.
  • the first flag indicates the first initialization response.
  • the highest two bits of the message flag block Chunk Flags are set to 0x10.
  • 10 represents an instruction that skips the parameter and continues processing, and the first identifier is used to instruct the first node to skip the configuration parameter of the second node to continue establishing the link between the first node and the second node.
  • the first two identifiers of the first initialization response message flag block Chunk Flags are set with the first identifier, so that the first node does not confirm after receiving the first initialization response message sent by the second node.
  • the unconfirmed parameter carried in the second node cannot read the specific value of the unconfirmed parameter, and can continue the subsequent processing, establish a link between the first node and the second node, and improve the first node and the second node. Compatibility between nodes.
  • the first node parses the first initialization response message. If the first node confirms that the configuration parameter of the second node does not meet the first preset condition, where the first preset condition is that the parameter type value of the second node is equal to the parameter type value of the first node, and the parameter type value belongs to the configuration. For one of the parameters, the first node does not confirm whether the configuration parameter of the second node is the same as the configuration parameter of the first node. If the first node confirms that the configuration parameter of the second node meets the first preset condition, the first node confirms whether the configuration parameter of the second node is the same as the configuration parameter of the first node.
  • the method for the first node to confirm that the configuration parameter of the second node meets the first preset condition is specifically: confirming that the parameter type value of the second node is equal to the parameter type value of the first node, where the parameter type value belongs to An item of configuration parameters.
  • the second quarter The Type value of the point is equal to the Type value of the first node. That is, the Type value of the inner layer in the specific format of the unconfirmed parameter Unrecognized Parameter of the configuration parameter of the first node and the Type of the inner layer in the specific format of the unrecognized parameter of the configuration parameter of the second node The values are equal.
  • the configuration parameter of the second node is the same as the configuration parameter of the first node, the following steps are not required, and the second node directly establishes a link with the first node.
  • the second node receives a link termination message sent by the first node.
  • the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed.
  • the first node uses the configuration parameter of the second node as the configuration parameter of the first node.
  • the link needs to be re-established. Before the link is reestablished, the process of establishing the link is first terminated, and then the second node receives the link termination message sent by the first node.
  • the second node receives the link termination message sent by the first node, to terminate the link establishment of the first node and the second node.
  • the link termination message received by the second node is that the first node is sent by using the ABORT/SHUTDOWN command, thereby terminating the link establishment of the first node and the second node.
  • the second node receives the second initialization packet sent by the first node.
  • the second initialization message is used to indicate that a link between the first node and the second node is established.
  • the second initialization message is an INIT message sent by the client node to the server node, and the second initialization message is used to indicate that the link between the first node and the second node is established.
  • the second node sends a second initialization response message to the first node.
  • the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the second initialization response packet described in the embodiment of the present invention may be carried, or the configuration parameters of the second node may not be carried, and the present invention is not limited.
  • the second node establishes a link with the first node.
  • the second node After the second node receives the second initialization message sent by the first node, the second node sends a second initialization response message to the first node, and the second node establishes a link with the first node.
  • the first node provided by the embodiment of the present invention is a client node
  • the second node is a server node.
  • the client node may be a wired or wireless user equipment such as a mobile phone or a tablet computer
  • the server node may be a base station, and the present invention is not limited.
  • An embodiment of the present invention provides a method for establishing a link, where a first initialization packet sent by a first node is received by a second node, where the first initialization packet is used to indicate that a chain between the first node and the second node is established.
  • the second node sends a first initialization response message to the first node, where the first initialization response message carries the configuration parameter or the first identifier of the second node, where the first identifier is used to indicate that the first node is according to the first
  • the configuration parameters of the node establish a link with the second node, and the second node establishes a link with the first node.
  • the detection link failure time of the first node and the second node are equal, and the solution is solved.
  • the misjudgment of the link state caused by the inconsistent link failure time between the first node and the second node improves the reliability of the link.
  • the embodiment of the present invention provides a client node 1 corresponding to the foregoing embodiment.
  • Each functional unit of the client node 1 can be used in the foregoing method steps. As shown in FIG. 8, the method includes:
  • the sending module 1 0 is configured to send a first initialization message to the second node, where the first initialization message is used to indicate that a link between the first node and the second node is established.
  • the receiving module 1 1 is configured to receive a first initialization response message sent by the second node.
  • the link module 1 2 is configured to: if the first initialization response message carries the configuration parameter of the second node that is the same as the configuration parameter of the first node, or the first initialization response message
  • the first identifier is used to establish a link with the second node, where the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node.
  • the updating module 13 is configured to: if the first initialization response message carries a configuration parameter of the second node that is different from the configuration parameter of the first node, use the configuration parameter of the second node as the configuration parameter of the first node.
  • the sending module 10 is further configured to send a link termination message to the second node, where the link termination message is used to indicate to close the link between the first node and the second node at the current moment.
  • the sending module 10 is further configured to send a second initialization message to the second node, where the second initialization message is used to indicate establishing a link between the first node and the second node.
  • the receiving module 11 is further configured to receive a second initialization response message sent by the second node, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the link module 12 is further configured to establish a link with the second node according to the configuration parameter of the first node.
  • the client node 1 further includes:
  • the confirmation module 14 is configured to determine whether the configuration parameter of the second node is the same as the configuration parameter of the first node when the configuration parameter of the second node meets the first preset condition, where the first preset condition refers to the second node
  • the parameter type value is equal to the parameter type value of the first node, and the parameter type value belongs to one of the configuration parameters.
  • the configuration parameter belongs to an item of the unconfirmed parameter Unrecognized Parameter carried in the first initialization response message.
  • the first identifier occupies the highest two bits of the flag block Chunk Flags carried in the first initialization response message.
  • the first node is a client node
  • the second node is a server node.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An embodiment of the present invention provides a client node, including a sending module, configured to send a first initialization packet to a second node, where the first initialization packet is used to indicate that a link between the first node and the second node is established.
  • a receiving module configured to receive a first initialization response message sent by the second node, where the link module is configured to: if the first initialization response message carries a configuration parameter of the second node that is the same as the configuration parameter of the first node, or The first initialization response message carries a first identifier, and establishes a link with the second node, where the first identifier is used to indicate that the first node establishes a chain with the second node according to the configuration parameter of the first node.
  • the update module is configured to: if the first initialization response message carries a configuration parameter of the second node that is different from the configuration parameter of the first node, use the configuration parameter of the second node as the configuration parameter of the first node.
  • the embodiment of the present invention provides a server node 2, which corresponds to the foregoing embodiment, and each functional unit of the server node 2 can be used in the foregoing method steps. As shown in FIG. 10, the method includes:
  • the receiving unit 20 is configured to receive a first initialization message sent by the first node, where the first initialization message is used to indicate establishing a link between the first node and the second node.
  • the sending unit 2 1 is configured to send a first initialization response message to the first node, where the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used to indicate that the first node is configured according to the first node
  • the configuration parameters of the first node establish a link with the second node.
  • the linking unit 22 is configured to establish a link with the first node.
  • the receiving unit 20 is further configured to receive a link termination message sent by the first node, where the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed.
  • the receiving unit 20 is further configured to receive a second initialization message sent by the first node, where the second initialization message is used to indicate that a link between the first node and the second node is established, and the sending unit 21 is further configured to The first node sends a second initialization response message, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the configuration parameter belongs to an UnRecognized Parameter carried by the first initialization response message.
  • the first identifier occupies the highest two bits of the flag block Chunk Flags carried in the first initialization response message.
  • the first node is a client node
  • the second node is a server node.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • An embodiment of the present invention provides a server node, including a receiving unit, configured to receive a first initialization packet sent by a first node, where the first initialization packet is used to indicate that a chain between the first node and the second node is established.
  • a sending unit configured to send a first initialization response message to the first node, where the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used to indicate that the first node is configured according to the first node First quarter A configuration parameter of the point, establishing a link with the second node, and a linking unit for establishing a link with the first node.
  • the detection link failure time of the first node and the second node are equal, and the solution is solved.
  • the misjudgment of the link state caused by the inconsistent link failure time between the first node and the second node improves the reliability of the link.
  • the embodiment of the present invention provides a client device 3, which corresponds to the foregoing embodiment, and each functional unit of the client device 3 can be used in the foregoing method steps. As shown in FIG.
  • the sender 30 is configured to send a first initialization message to the second node, where the first initialization message is used to indicate that a link between the first node and the second node is established.
  • the receiver 31 is configured to receive a first initialization response message sent by the second node.
  • the processor 32 is configured to: if the first initialization response message carries the configuration parameter of the second node that is the same as the configuration parameter of the first node, or the first initialization response message carries the first identifier, and the second node is established.
  • An inter-link where the first identifier is used to indicate that the first node establishes a link with the second node according to the configuration parameter of the first node, and if the first initialization response packet carries the configuration with the first node
  • the configuration parameter of the second node with different parameters is used as the configuration parameter of the first node.
  • the transmitter 30 is further configured to send a link termination message to the second node, where the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed.
  • the transmitter 30 is further configured to send a second initialization message to the second node, where the second initialization message is used to indicate establishing a link between the first node and the second node.
  • the receiver 31 is further configured to receive a second initialization response message sent by the second node, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the processor 32 is further configured to establish a link with the second node according to the configuration parameter of the first node. Further, the processor 32 is further configured to: determine, when the configuration parameter of the second node meets the first preset condition, whether the configuration parameter of the second node is the same as the configuration parameter of the first node, where the first preset condition is It means that the parameter type value of the second node is equal to the parameter type value of the first node, and the parameter type value belongs to one of the configuration parameters.
  • the configuration parameter belongs to an item of the unconfirmed parameter Unrecognized Parameter carried in the first initialization response message.
  • the first identifier occupies the highest two bits of the flag block Chunk Flags carried in the first initialization response message.
  • the first node is a client node
  • the second node is a server node.
  • An embodiment of the present invention provides a client device, including a transmitter, configured to send a first initialization packet to a second node, where the first initialization packet is used to indicate establishing a link between the first node and the second node.
  • a receiver configured to receive a first initialization response message sent by the second node
  • a processor configured to: if the first initialization response message carries a configuration parameter of a second node that is the same as a configuration parameter of the first node, Or the first initialization response message carries a first identifier, and establishes a link with the second node, where the first identifier is used to indicate that the first node establishes a relationship with the second node according to the configuration parameter of the first node.
  • the link and if the first initialization response message carries a configuration parameter of the second node different from the configuration parameter of the first node, the configuration parameter of the second node is used as the configuration parameter of the first node.
  • the detection link failure time of the first node and the second node are equal, and the solution is solved.
  • the misjudgment of the link state caused by the inconsistent link failure time between the first node and the second node improves the reliability of the link.
  • the embodiment of the present invention provides a server device 4, which corresponds to the foregoing embodiment, and each functional unit of the server device 4 can be used in the foregoing method steps. As shown in FIG. 12, the method includes:
  • the receiver 40 is configured to receive a first initialization message sent by the first node, where the first initialization message is used to indicate establishing a link between the first node and the second node.
  • the transmitter 41 is configured to send a first initialization response message to the first node, where
  • the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used to instruct the first node to establish a link with the second node according to the configuration parameter of the first node.
  • the processor 42 is configured to establish a link with the first node.
  • the receiver 40 is further configured to receive a link termination message sent by the first node, where the link termination message is used to indicate that the link between the first node and the second node at the current moment is closed.
  • the receiver 40 is further configured to receive a second initialization message sent by the first node, where the second initialization message is used to indicate establishing a link between the first node and the second node.
  • the transmitter 41 is further configured to send a second initialization response message to the first node, where the second initialization response message is used to indicate that the establishment of the link between the first node and the second node is agreed.
  • the configuration parameter belongs to an UnRecognized Parameter carried by the first initialization response message.
  • the first identifier occupies the highest two bits of the flag block Chunk Flags carried in the first initialization response message.
  • the first node is a client node
  • the second node is a server node.
  • An embodiment of the present invention provides a server device, including a receiver, configured to receive a first initialization packet sent by a first node, where the first initialization packet is used to indicate establishing a chain between the first node and the second node. And a transmitter, configured to send a first initialization response message to the first node, where the first initialization response message carries a configuration parameter or a first identifier of the second node, where the first identifier is used to indicate that the first node is configured according to the first node A configuration parameter of the first node, establishing a link with the second node, and a processor for establishing a link with the first node.
  • the user equipment described in the embodiment of the present invention may be a wireless terminal or
  • the wireless terminal can be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device that is connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • a radio access network eg, RAN, Radio Access Network
  • the computer for example, may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network; the base station may refer to an access network that passes over the air interface A device in which one or more sectors communicate with a wireless terminal.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
  • BTS Base Transceiver Station
  • NodeB base station
  • NodeB evolved base station
  • LTE NodeB or eNB or e-NodeB, evolutional Node B

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Abstract

Des modes de réalisation de la présente invention concernent un procédé, un nœud et un appareil d'établissement de liaison, qui concernent le domaine technique des communications et sont destinés à résoudre le problème d'un jugement erroné d'un état de liaison provoqué par une longueur de temps de défaillance de liaison contradictoire d'un premier nœud et d'un second nœud, ce qui améliore la fiabilité de la liaison. Le procédé comprend les étapes suivantes : un premier nœud envoie un premier paquet d'initialisation à un second nœud; le premier nœud reçoit un premier paquet de réponse d'initialisation envoyé par le second nœud; si le premier paquet de réponse d'initialisation comporte un paramètre de configuration du second nœud qui est identique à un paramètre de configuration du premier nœud ou si le premier paquet de réponse d'initialisation comporte une première identification, le premier nœud établit une liaison avec le second nœud; et si le premier paquet de réponses d'initialisation comporte le paramètre de configuration du second nœud qui est différent du paramètre de configuration du premier nœud, le premier nœud utilise le paramètre de configuration du second nœud en tant que paramètre de configuration du premier nœud.
PCT/CN2013/078467 2013-06-28 2013-06-28 Procédé, nœud et appareil d'établissement de liaison WO2014205819A1 (fr)

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CN201380001507.2A CN103733600A (zh) 2013-06-28 2013-06-28 一种建立链路的方法、节点及装置

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CN105892990B (zh) * 2016-03-30 2019-03-12 北京联想核芯科技有限公司 一种数据处理方法及电子设备
CN105897878B (zh) * 2016-04-01 2019-03-05 浪潮电子信息产业股份有限公司 一种数据链路层的初始化的方法及装置
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