WO2010060373A1 - 一种建立虚拟局域网连接的方法、设备与系统 - Google Patents

一种建立虚拟局域网连接的方法、设备与系统 Download PDF

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Publication number
WO2010060373A1
WO2010060373A1 PCT/CN2009/075110 CN2009075110W WO2010060373A1 WO 2010060373 A1 WO2010060373 A1 WO 2010060373A1 CN 2009075110 W CN2009075110 W CN 2009075110W WO 2010060373 A1 WO2010060373 A1 WO 2010060373A1
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Prior art keywords
vlan
signaling
information
node
bandwidth
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PCT/CN2009/075110
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English (en)
French (fr)
Inventor
�龙昊
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP09828633.9A priority Critical patent/EP2348679B1/en
Priority to ES09828633.9T priority patent/ES2594733T3/es
Publication of WO2010060373A1 publication Critical patent/WO2010060373A1/zh
Priority to US13/116,801 priority patent/US9160567B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4633Interconnection of networks using encapsulation techniques, e.g. tunneling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/28Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46Interconnection of networks
    • H04L12/4641Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/302Route determination based on requested QoS
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00Routing or path finding of packets in data switching networks
    • H04L45/50Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]
    • H04L45/507Label distribution
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00Traffic control in data switching networks
    • H04L47/70Admission control; Resource allocation
    • H04L47/72Admission control; Resource allocation using reservation actions during connection setup
    • H04L47/724Admission control; Resource allocation using reservation actions during connection setup at intermediate nodes, e.g. resource reservation protocol [RSVP]

Definitions

  • the invention relates to a method, device and system for establishing a virtual local area network connection.
  • the application is filed on November 26, 2008, and the application number is 200810217686.4.
  • the invention is entitled "A method, device and system for establishing a virtual local area network connection".
  • Priority of Chinese Patent Application the entire contents of which is incorporated herein by reference.
  • the embodiments of the present invention relate to the field of communications, and in particular, to a method, a device, and a system for establishing a virtual local area network connection.
  • Ethernet As a LAN technology, Ethernet has been widely used since its birth. It has been used in carrier networks as an access aggregation technology. In the current carrier network, the network is relatively simple, and a VLAN (Virtual Local Area Network) connection is usually established through the network management configuration. However, as Ethernet applications become more widespread, the network becomes more and more complex, and the configuration through the network management system will be very expensive.
  • VLAN Virtual Local Area Network
  • GVRP Generic VLAN Registration Protocol
  • GVRP GVRP packets will be looped when they are transmitted on the network, affecting the connection of the VLAN.
  • GVRP is rarely used in practice.
  • GVRP does not support traffic engineering, and actual networks usually require traffic engineering support.
  • the embodiment of the invention provides a method for establishing a virtual local area network connection, and the automatic VLAN configuration can be performed in an environment without a spanning tree.
  • An embodiment of the present invention provides a method for establishing a virtual local area network connection, which includes the following steps:
  • first signaling where the first signaling includes at least one VLAN ID and explicit routing information that are not used;
  • an embodiment of the present invention provides a method for establishing a virtual local area network connection, including the following steps:
  • the source node obtains at least one VLAN ID and explicit routing information that is not used, and sends a first signaling according to the at least one VLAN ID that is not used, and the first signaling includes the at least one The used VLAN ID and the explicit routing information, the signaling flows through each node according to the explicit routing information;
  • the at least one intermediate node receives the first signaling, and registers a VLAN ID according to the at least one VLAN ID that is not used in the first signaling, according to the explicit routing information sending manner in the first signaling. Describe the first signaling;
  • the sink node receives the first signaling, and registers a VLAN ID according to the at least one unused VLAN ID in the first signaling.
  • an embodiment of the present invention further provides a node device, including:
  • a receiving module configured to receive first signaling, where the first signaling includes the at least one unused VLAN ID and the explicit routing information;
  • a registration module configured to register a VLAN according to the at least one VLAN ID that is not used
  • a sending module configured to send the first signaling according to the explicit routing information.
  • an embodiment of the present invention further provides a system for establishing a virtual local area network connection, including:
  • a source node configured to obtain at least one VLAN ID and explicit routing information that are not used; Transmitting a VLAN ID according to the at least one VLAN ID that is not used; sending first signaling, where the first signaling includes the at least one unused VLAN ID and the explicit routing information, the signaling According to explicit routing information flowing through each node;
  • At least one intermediate node configured to receive the first signaling; register a VLAN ID according to the at least one VLAN ID that is not used in the first signaling; according to the explicit routing in the first signaling Transmitting the first signaling;
  • a sink node configured to receive the first signaling; and register a VLAN ID according to the at least one VLAN ID that is not used in the first signaling.
  • an embodiment of the present invention provides a method for establishing a virtual local area network connection, including the following steps:
  • link information where the link information includes port bandwidth information of each neighbor node; receiving the first signaling, where the first signaling includes at least one VLAN ID, bandwidth request information, and explicit routing information that are not used;
  • the second message is a feedback signal sent by the first signaling along the display routing information, and determining, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, If yes, send a second message, register the VLAN ID.
  • an embodiment of the present invention provides a method for establishing a virtual local area network connection, including the following steps:
  • the source node obtains at least one VLAN ID, explicit routing information, and link information that are not used; and sends first signaling, where the first signaling includes the at least one unused VLAN ID, bandwidth request information, and display Routing information;
  • the sink node obtains the link information of the local node, and receives the first signaling sent by the intermediate node, and the root Determining, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if yes, sending a second message, where the second message is a feedback signal sent by the first signaling along the display routing information, Register the VLAN ID;
  • the at least one intermediate node receives the second message, determining, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if yes, sending the second message, registering the VLAN ID;
  • the source node receives the second message sent by the intermediate node, determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if so, registers the VLAN ID.
  • an embodiment of the present invention further provides a node device, including:
  • a third receiving module configured to receive the first signaling or the second information, where the first signaling includes the at least one unused VLAN ID, bandwidth request information, and explicit routing information, where the second message is Transmitting, by the first signaling, the feedback signal sent along the display routing information; sending the first signaling to the storage module when receiving the first signaling; and sending the second information when receiving the second information To the third judgment module;
  • a storage module configured to store various information in the first signaling, where the first signaling includes a VLAN ID, bandwidth request information, and explicit routing information; and sending the first signaling to the third sending Module and third judgment module;
  • a third collecting module configured to collect link information, where the link information includes port bandwidth information of each neighbor node;
  • a third determining module configured to receive the link information and the first signaling, determine whether the port bandwidth information obtained according to the link information satisfies the bandwidth request information, and if yes, send a VLAN ID to Registering a module, sending the second information to the third sending module;
  • a registration module configured to register a VLAN ID on the port
  • the third sending module is configured to send the first signaling or the second information.
  • an embodiment of the present invention further provides a system for establishing a virtual local area network connection, where Includes:
  • a first node configured to collect routing information and link information, where the routing information includes a network topology and an updated network VLAN ID database, where the link information includes port bandwidth information of each neighbor node; Routing information and at least one VLAN ID that is not used; sending first signaling, where the first signaling includes a VLAN ID, bandwidth request information, and explicit routing information;
  • a second node configured to collect link information, where the link information includes port bandwidth information of each neighbor node; receiving the first signaling, determining whether the node port bandwidth information obtained according to the link information is satisfied The bandwidth request information, if the VLAN ID is registered, the second information is sent, the second message is a feedback signal sent by the first signaling along the display routing information; the first node is further used for If the second message is received, determining, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if so, registering the VLAN ID.
  • the technical solution of the embodiment of the present invention can perform automatic VLAN configuration in an environment without a spanning tree protocol.
  • FIG. 1 is a schematic flowchart of a method for establishing a virtual local area network connection according to an embodiment of the present invention
  • FIG. 1b is a schematic flowchart of a method for establishing a virtual local area network connection according to another embodiment of the present invention
  • Figure lc is a flow chart showing a method for establishing a virtual local area network connection according to still another embodiment of the present invention.
  • FIG. 1d is a schematic flowchart of a method for establishing a virtual local area network connection according to still another embodiment of the present invention
  • FIG. 2 is a schematic flow chart of a method for establishing a virtual local area network connection according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic structural diagram of a network according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic flowchart of a method for establishing a virtual local area network connection according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic structural diagram of a network according to Embodiment 2 of the present invention.
  • FIG. 6 is a schematic flow chart of a method for establishing a virtual local area network connection according to Embodiment 3 of the present invention.
  • FIG. 7 is a schematic structural diagram of a network according to Embodiment 3 of the present invention.
  • FIG. 8 is a schematic structural diagram of a node device according to Embodiment 4 of the present invention.
  • FIG. 9 is a schematic structural diagram of a node device according to Embodiment 5 of the present invention.
  • FIG. 10 is a schematic structural diagram of a node device according to Embodiment 6 of the present invention.
  • FIG. 11 is a schematic diagram of a network system for establishing a virtual local area network connection according to Embodiment 7 of the present invention. detailed description
  • FIG. la The specific method flow of the embodiment of the present invention is as shown in FIG. la, and includes the following steps:
  • Step S1010 Receive first signaling, where the first signaling includes at least one VLAN ID and explicit routing information that are not used.
  • the at least one unused VLAN ID and the explicit routing information in the first signaling may be specifically implemented by collecting routing information, where the routing information includes a network topology and an updated network VLAN ID database, and then Obtain explicit routing information and at least one VLAN ID that is not used according to the routing information. You can also obtain at least one VLAN ID and explicit routing information that are not used by the direct distribution of the network management.
  • Step S102a registering a VLAN according to the at least one VLAN ID that is not used.
  • Step S103a Send the first signaling according to the explicit routing information.
  • the first signaling when performing a point-to-point VLAN connection, may further include bidirectional indication information, where the bidirectional indication information indicates that both the forward and reverse directions use the same VLAN ID;
  • the registration VLAN ID is specifically: registering a VLAN ID, and performing an indication of the bidirectional indication information.
  • the first signaling when the point-to-point VLAN connection is performed, may further include an indication that the learning is not started, and the indication that the learning is not initiated indicates that the other node is prohibited from learning for the VLAN;
  • the registration VLAN ID is specifically: registering a VLAN ID, and performing the indication that the learning is not started.
  • the first signaling when performing a point-to-multipoint VLAN connection, includes the at least one unused VLAN ID, which may be:
  • the first signaling includes an uplink VLAN ID and a downlink VLAN ID.
  • the registration VLAN ID may be specifically:
  • the uplink VLAN ID is registered on the uplink port, and the downlink VLAN ID is registered on the downlink port.
  • the first signaling may further include a shared learning indication, where the shared learning indication indicates that the uplink VLAN and the downlink VLAN are configured to share learning mode;
  • the registering the VLAN ID may further include: executing the shared learning indication.
  • the first signaling may further include bidirectional indication information, where the bidirectional indication information indicates that both the forward and reverse directions use the same VLAN ID;
  • the registration VLAN ID may be specifically: registering a VLAN ID, and performing an indication of the bidirectional indication information.
  • the first signaling when the multi-point to multi-point VLAN connection is performed, the first signaling may further include a startup learning indication, where the startup learning indication indicates that the learning function of the VLAN is opened;
  • the registration VLAN ID may include: registering a VLAN ID, and performing the indication of starting the learning.
  • the technical solution of the embodiment of the present invention can perform automatic VLAN configuration in an environment without a spanning tree protocol.
  • Step S10 the source node obtains at least one unused VLAN ID and explicit routing information, and sends a first signaling according to the at least one VLAN ID that is not used to be used, where the first signaling includes Describe at least one VLAN ID that is not used and the explicit routing information, and the signaling flows through each node according to explicit routing information.
  • Step S102b the at least one intermediate node receives the first signaling, and registers a VLAN ID according to the at least one VLAN ID that is not used in the first signaling, according to the explicit in the first signaling.
  • the routing information sends the first signaling.
  • Step S103b The sink node receives the first signaling, and registers a VLAN ID according to the at least one VLAN ID that is not used in the first signaling.
  • the technical solution of the embodiment of the present invention can be automatically performed in an environment without a spanning tree protocol.
  • FIG. 1c a flow engineering judgment step is added, and the specific method flow is shown in FIG. 1c, and includes the following steps:
  • Step S10 Obtaining link information, where the link information includes port bandwidth information of each neighbor node.
  • Step S102c Receive first signaling, where the first signaling includes at least one VLAN ID, bandwidth request information, and explicit routing information that are not used.
  • the first signaling may specifically be Path signaling.
  • Step S103c Store the message carried by the first signaling in the local node, and send the first signaling according to the display routing information.
  • At least one VLAN ID, bandwidth request information, and explicit routing information that are not used in the Path signaling are saved in the local node.
  • Step S104c if the second message is received, the second message is a feedback signal sent by the first signaling along the display routing information, and determining, according to the link information of the node, whether the node port bandwidth satisfies the Bandwidth request information, if satisfied, sends a second message, registering the VLAN ID.
  • the second message may be a Resv message.
  • the number of bandwidth requests is subtracted from the node port bandwidth.
  • the first signaling when performing a point-to-point VLAN connection, may further include bidirectional indication information, where the bidirectional indication information indicates that both the forward and reverse directions use the same VLAN ID;
  • the registration VLAN ID is specifically: registering a VLAN ID, and performing an indication of the bidirectional indication information.
  • the first signaling when the point-to-point VLAN connection is performed, the first signaling may further include an indication that the learning is not started, and the indication that the learning is not initiated indicates that the other node is prohibited from learning for the VLAN;
  • the registration VLAN ID is specifically: registering a VLAN ID, and performing the indication that the learning is not started.
  • the first signaling when performing a point-to-multipoint VLAN connection, includes the at least one unused VLAN ID, which may be:
  • the first signaling includes an uplink VLAN ID and a downlink VLAN ID; the registration VLAN
  • the ID can be:
  • the uplink VLAN ID is registered on the uplink port, and the downlink VLAN ID is registered on the downlink port.
  • the first signaling may further include a shared learning indication, where the shared learning indication indicates that the uplink VLAN and the downlink VLAN are configured to share learning mode;
  • the registering the VLAN ID may further include: executing the shared learning indication.
  • the first signaling may further include bidirectional indication information, where the bidirectional indication information indicates that both the forward and reverse directions use the same VLAN ID;
  • the registration VLAN ID may be specifically: registering a VLAN ID, and performing an indication of the bidirectional indication information.
  • the first letter is The command may further include a startup learning indication, where the startup learning indication indicates that the learning function of the VLAN is turned on;
  • the registration VLAN ID may include: registering a VLAN ID, and performing the indication of starting the learning.
  • the technical solution of the embodiment of the present invention can be automatically performed in an environment without a spanning tree protocol.
  • VLAN configuration and support for traffic engineering at the same time.
  • the flow engineering judgment step is added on the basis of the above two embodiments, and the specific method flow is shown in FIG. 1d, and includes the following steps:
  • Step SlOld the source node obtains at least one unused VLAN ID, explicit routing information, and link information; and sends first signaling, where the first signaling includes the at least one unused VLAN ID, bandwidth Request information, explicit routing information.
  • Step S102d The at least one intermediate node receives the first signaling, stores the message carried by the first signaling in the local node, and sends the first signaling.
  • the first signaling may specifically be Path signaling.
  • Step S103d The sink node obtains the link information of the local node, receives the first signaling sent by the intermediate node, and determines, according to the link information of the local node, whether the bandwidth of the node port satisfies the bandwidth request information, and if yes, sends the first
  • the second message is a feedback signal sent by the first signaling along the display routing information, and the VLAN ID is registered.
  • the second message may be a Resv message.
  • Step S104d If the at least one intermediate node receives the second message, determine, according to the link information of the local node, whether the bandwidth of the node port satisfies the bandwidth request information, and if yes, send the second message, register the VLAN ID.
  • Step S105d The source node receives the second message sent by the intermediate node, determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if so, registers the VLAN ID.
  • step S104d step S105d are registered After the VLAN ID, the number of bandwidth requests is subtracted from the node port bandwidth.
  • the technical solution of the embodiment of the present invention can be automatically performed in an environment without a spanning tree protocol.
  • VLAN configuration and support for traffic engineering at the same time.
  • FIG. 2 it is a schematic flowchart of a method for establishing a virtual local area network connection according to Embodiment 1 of the present invention.
  • This embodiment solves the point-to-point VLAN connection.
  • the node A initiates signaling and establishes a point-to-point VLAN tunnel between the node A and the node D as an example, including the following steps:
  • Step S201 using OSPF (Open Shortest Path First), IS-IS (Intermediate System to Intermediate System), and other routing protocols to collect routes; and using LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol or LMP (Link Management Protocol) protocol collects link information for each node.
  • OSPF Open Shortest Path First
  • IS-IS Intermediate System to Intermediate System
  • LLDP Link Layer Discovery Protocol, Link Layer Discovery Protocol or LMP (Link Management Protocol) protocol collects link information for each node.
  • the embodiment of the present invention takes the 0SPF routing protocol as an example.
  • Each node runs the 0SPF routing protocol, and the Layer 2 MAC address of the port on each node and the registered VLAN ID information on the port are extended in the Link State Advertisement (LSA) message.
  • LSA Link State Advertisement
  • each node After receiving the LSA packets from other nodes on the network, each node carries the
  • the MAC address information is obtained in the Layer 2 topology of the entire network. Based on the registered VLAN ID information carried in the network, the VLAN ID database used or not used by the entire network is maintained.
  • the LLDP protocol is taken as an example to collect link information.
  • the OSPF routing protocol is run on each node, the LLDP packet is sent to the neighboring node.
  • the LLDP packet carries the port bandwidth information of the local node.
  • Each node receives the LLDP packet sent by the neighboring node. After that, the bandwidth information database of each link to which the node is connected is maintained according to the port bandwidth information therein.
  • Step S202 obtaining explicit routing information according to routing information and one is not used.
  • node A When node A receives the request to establish a connection, it calculates the route according to the topology information of its own node, obtains explicit routing information, and selects a VLAN ID that is not yet used according to the VLAN ID database.
  • the explicit routing information from node A to node D is A->B->C->D, and a VLAN ID that is not currently used is selected, for example, the VLAN ID is 5.
  • Step S203 The source node sends Path signaling, where the Path signaling carries a VLAN ID, bandwidth request information, explicit routing information, two-way indication information, and an indication that the learning is not started.
  • the node A sends the Path signaling according to the explicit routing information, which carries the VLAN ID, the bandwidth request information, the explicit routing information, the two-way indication information, and the indication that the learning is not started.
  • the bidirectional indication information indicates that the same VLAN ID is used in both the forward and reverse directions, that is, the VLAN ID of A->B->C->D is 5, and the VLAN ID of D->C->B->A is also the same. Is 5.
  • An indication of not starting learning is provided in the signaling, indicating that other nodes are required to prohibit learning for this VLAN.
  • Step S204 The intermediate node receives the Path signaling, stores the message carried by the Path signaling in the local node, and sends the Path signaling.
  • each intermediate node stores various information carried in the Path signaling on the local node, and forwards the Path signaling to the next node.
  • Step S205 The sink node receives the Path signaling, determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, if yes, sends a Resv message, registers a VLAN ID, and obtains a bandwidth from the node port. The number of bandwidth requests is subtracted, and an indication that learning is not initiated is performed.
  • the node D After receiving the Path signaling, the node D determines whether the bandwidth of the local port meets the bandwidth request, and if yes, sends a Resv message to the node C, and receives the Path signaling and sends the Resv.
  • the VLAN ID is registered on the port of the message, and the learning function on the VLAN is disabled according to the indication that the learning is not started in the signaling, and the node D subtracts the bandwidth request quantity from the node port bandwidth; if not, the PathErr message is returned to the A. node.
  • Step S206 the intermediate node receives the Resv message, determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, if yes, sends a Resv message, registers a VLAN ID, and subtracts from the bandwidth of the node port. Go to the number of bandwidth requests and perform an indication that learning is not started.
  • the node C After receiving the Resv message, the node C checks whether the bandwidth of the local port meets the bandwidth request. If yes, the node registers the VLAN ID on the two ports that receive the Path signaling and the Resv message, and does not start the learning according to the signaling. The learning function on the VLAN is closed, and the node C subtracts the bandwidth request quantity from the node port bandwidth, and sends a Resv message to the node B; if not, returns a PathErr message to the A node, and returns a ResvErr message to the D node. Repeat the above operation until node A receives the message.
  • Step S207 the source node receives the Resv message, determines, according to the link information of the node, whether the node port bandwidth satisfies the bandwidth request information, if yes, registers the VLAN ID, and subtracts the bandwidth from the node port bandwidth. The number of bandwidth requests, the indication that the learning is not started.
  • Node A receives the Resv message sent by the Node B, checks whether the bandwidth of the local port meets the bandwidth request, and if so, registers the VLAN ID on the two ports that receive the Path signaling and the Resv message, and does not start according to the signaling.
  • the learning instruction turns off the learning function on the VLAN, and node A subtracts the number of bandwidth requests from the node port bandwidth.
  • step S201 the route collection and link information collection of each node are not strictly sequential.
  • Embodiment 2 As shown in FIG. 4, it is a schematic flowchart of a method for establishing a virtual local area network connection according to Embodiment 2 of the present invention.
  • This embodiment solves the point-to-multipoint asymmetric VLAN connection, as shown in the network structure diagram of FIG. 5, and initiates signaling by the node A to establish a point-to-multipoint between the node A and the node D and the node A to the node H.
  • an asymmetric VLAN tunnel includes the following steps:
  • Step S401 using OSPF (Open Shortest Path First), IS-IS (Intermediate System to Intermediate System), and other routing protocols to collect routes; and using LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol or LMP (Link Management Protocol) protocol collects link information for each node.
  • OSPF Open Shortest Path First
  • IS-IS Intermediate System to Intermediate System
  • LLDP Link Layer Discovery Protocol, Link Layer Discovery Protocol or LMP (Link Management Protocol) protocol collects link information for each node.
  • the embodiment of the present invention takes an OSPF routing protocol as an example.
  • Each node runs the OSPF routing protocol and extends the Layer 2 MAC address of the port on each node and the registered VLAN ID information on the port in the Link State Advertisement (LSA) packet.
  • LSA Link State Advertisement
  • each node After receiving the LSA packets from other nodes in the network, each node obtains the Layer 2 topology of the entire network based on the MAC address information carried in the network, and maintains the used or unused VLAN ID database based on the registered VLAN ID information carried in the nodes. .
  • the LLDP protocol is taken as an example to collect link information.
  • the OSPF routing protocol is run on each node, the LLDP packet is sent to the neighboring node.
  • the LLDP packet carries the port bandwidth information of the local node.
  • each node After receiving the LLDP packets sent by the neighboring nodes, each node maintains the bandwidth information database of each link to which the node is connected according to the port bandwidth information.
  • Step S402 Obtain explicit routing information and two unused VLAN IDs according to routing information.
  • node A When node A receives the request to establish a connection, it calculates a route according to the topology information of its own node, obtains explicit routing information, and selects a VLAN ID that is not yet used according to the VLAN ID database. As shown in Figure 5, the explicit routing information from node A to node D is A->B->C->D, and the explicit routing information from node A to node H is A->B->F->G->H, and select two VLAN IDs that are not currently used, as the upstream VLAN ID and the downstream VLAN ID, for example, the uplink VLAN ID is 5 and the downlink VLAN ID is 6.
  • Step S403 The source node sends Path signaling, where the Path signaling carries an uplink VLAN ID, a downlink VLAN ID, and a corresponding bandwidth request message, and a shared learning indication.
  • the node A sends the Path signaling according to the explicit routing information, where the uplink VLAN ID and the downlink VLAN ID, the corresponding uplink bandwidth request information and the downlink bandwidth request message, the explicit routing information, and the shared learning indication are carried.
  • a shared learning indicator indicates that the two VLANs are configured to share the learning mode.
  • Step S404 The intermediate node receives the Path signaling, stores the message carried by the Path signaling in the local node, and sends the Path signaling.
  • each intermediate node stores various information carried in the Path signaling on the local node.
  • Step S405 The sink node receives the Path signaling, determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, if yes, sends a Resv message, registers a VLAN ID, and obtains a bandwidth from the node port. The number of bandwidth requests is subtracted, and a shared learning indication is performed.
  • the node D determines whether the bandwidth of the local port meets the bandwidth request, and if yes, sends a Resv message to the node C, and registers the uplink VLAN ID on the port that receives the Path signaling, and sends the Resv.
  • the downlink VLAN ID is registered on the port of the message, and according to the instruction of the shared learning carried in the signaling, the node configures the uplink VLAN and the downlink VLAN as the shared learning mode according to the indication, and the node D subtracts the bandwidth request quantity from the node port bandwidth. If not, return the PathErr message to the A node.
  • Step S406 The intermediate node receives the Resv message, and determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if yes, sends a Resv message, and registers.
  • the node C After receiving the Resv message, the node C checks whether the bandwidth of the local port meets the uplink and downlink bandwidth request. If yes, the node registers the uplink VLAN ID on the uplink port, and registers the downlink VLAN ID on the downlink port, and according to the shared learning indication carried in the signaling. The node configures the uplink VLAN and the downlink VLAN as the shared learning mode according to the indication, and the node C subtracts the number of downlink bandwidth requests from the node port bandwidth, and sends a Resv message to the node B. If not, returns the PathErr message to the node A. , return the ResvErr message to the D node. Repeat the above operation until node A receives the message. The same applies to node H to node A.
  • Step S407 the source node receives the Resv message, determines, according to the link information of the node, whether the node port bandwidth satisfies the bandwidth request information, if yes, registers the VLAN ID, and subtracts the bandwidth from the node port bandwidth. The number of bandwidth requests, performing a shared learning instruction.
  • Node A receives the Resv message sent by the Node B, checks whether the bandwidth of the local port meets the bandwidth request, and if so, registers the uplink VLAN ID on the uplink port, and registers the downlink VLAN ID on the downlink port, and learns according to the shared information carried in the signaling. Instructing, the node configures the uplink VLAN and the downlink VLAN as the shared learning mode according to the indication, and the node A subtracts the downlink bandwidth request quantity from the node port bandwidth.
  • step S401 the route collection and link information collection of each node are not strictly sequential.
  • the technical solution of the embodiment of the present invention can be automatically performed in an environment without a spanning tree protocol.
  • Embodiment 3 is a VLAN configuration and support for traffic engineering at the same time.
  • FIG. 6 it is a schematic flowchart of a method for establishing a virtual local area network connection according to Embodiment 3 of the present invention.
  • This embodiment solves the multi-point to multi-point asymmetric VLAN connection.
  • the node A initiates signaling and establishes a multi-point to multi-point VLAN tunnel as an example. The following steps:
  • Step S601 using OSPF (Open Shortest Path First), IS-IS (Intermediate System to Intermediate System), and other routing protocols to collect routes; and using LLDP (Link Layer Discovery Protocol, Link Layer Discovery Protocol or LMP (Link Management Protocol) protocol collects link information for each node.
  • OSPF Open Shortest Path First
  • IS-IS Intermediate System to Intermediate System
  • LLDP Link Layer Discovery Protocol, Link Layer Discovery Protocol or LMP (Link Management Protocol) protocol collects link information for each node.
  • the embodiment of the present invention takes an OSPF routing protocol as an example.
  • Each node runs the OSPF routing protocol and extends the Layer 2 MAC address of the port on each node and the registered VLAN ID information on the port in the Link State Advertisement (LSA) packet.
  • LSA Link State Advertisement
  • each node After receiving the LSA packets from other nodes on the network, each node carries the
  • the MAC address information is obtained in the Layer 2 topology of the entire network. Based on the registered VLAN ID information carried in the network, the VLAN ID database used or not used by the entire network is maintained.
  • the LLDP protocol is taken as an example to collect link information. Running on each node
  • the OSPF routing protocol sends LLDP packets to the neighboring node.
  • the LLDP packets carry the port bandwidth information of the local node.
  • each node After receiving the LLDP packets sent by the neighboring nodes, each node maintains the bandwidth information database of each link to which the node is connected according to the port bandwidth information.
  • Step S602 obtaining explicit routing information according to routing information and one is not used.
  • node A When node A receives the request to establish a connection, node A calculates a spanning tree as a multi-point to multi-point connection topology according to the routing information of its own node, obtains explicit routing information, and selects one according to the VLAN ID database.
  • the VLAN ID being used.
  • Step S603 The source node sends Path signaling, where the Path signaling carries a VLAN ID, bandwidth request information, explicit routing information, bidirectional indication information, and a startup learning indication.
  • Node A sends point-to-multipoint Path signaling based on explicit routing information, which carries VLANs.
  • the two-way indication information indicates that both the forward and reverse directions use the same VLAN ID.
  • An indication of starting learning is provided in the signaling, indicating that the learning function of the VLAN is turned on.
  • Step S604 The intermediate node receives the Path signaling, stores the message carried by the Path signaling in the local node, and sends the Path signaling.
  • each intermediate node stores various information carried in the Path signaling on the local node.
  • Step S605 The sink node receives the Path signaling, determines, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, if yes, sends a Resv message, registers a VLAN ID, and obtains a bandwidth from the node port. The number of bandwidth requests is subtracted, and a start learning instruction is performed.
  • the node D determines whether the bandwidth of the local port meets the bandwidth request, and if yes, sends a Resv message to the node C, and registers the VLAN ID on the port that receives the Path signaling and sends the Resv message. And according to the instruction of the startup learning carried in the signaling, the learning function on the VLAN is opened, and the node D subtracts the bandwidth request quantity from the node port bandwidth; if not, returns the PathErr message to the A node.
  • Step S606 the intermediate node receives the Resv message, determines, according to the link information of the node, whether the node port bandwidth satisfies the bandwidth request information, if yes, sends a Resv message, registers a VLAN ID, and subtracts from the node port bandwidth. Go to the number of bandwidth requests and perform a startup learning indication.
  • the node C After receiving the Resv message, the node C checks whether the bandwidth of the local port meets the bandwidth request. If yes, the node registers the VLAN ID on the two ports that receive the Path signaling and the Resv message, and according to the indication of the startup learning carried in the signaling. The learning function of the VLAN is opened, and the node C subtracts the number of uplink bandwidth requests and the number of downlink bandwidth requests from the port bandwidth, and sends a Resv message to the node B; if not, returns a PathErr message to the node A, and returns a ResvErr message to D node. Repeat the above operation until node A receives the message. The same applies to node H to node A, node E to node A.
  • Step S607 the source node receives the Resv message, determines, according to the link information of the node, whether the node port bandwidth satisfies the bandwidth request information, if yes, registers the VLAN ID, and subtracts the bandwidth from the node port bandwidth. The number of bandwidth requests, the start learning instruction is executed.
  • Node A receives the Resv message sent by the Node B, and checks whether the bandwidth of the local port meets the bandwidth request. If yes, the VLAN ID is registered on the two ports that receive the Path signaling and the Resv message, and is carried according to the signaling. Initiating the learning instruction, opening the learning function of the VLAN, and the node A subtracts the uplink bandwidth request quantity and the downlink bandwidth request quantity from the port bandwidth. In the foregoing step S601, the route collection and link information collection of each node are not strict. Order relationship.
  • Embodiment 4 of the present invention provides a source node device, as shown in FIG. 8, including: a first collection module, configured to collect routing information and link information, where the routing information includes a network topology and an update The network VLAN ID database, the link information includes port bandwidth information of each neighbor node.
  • an analyzing module configured to obtain explicit routing information and at least one VLAN ID that is not used according to the routing information sent from the collecting module.
  • the first receiving module is configured to receive bandwidth request information.
  • the first sending module is configured to send the first signaling, where the first signaling includes a VLAN ID, bandwidth request information, and explicit routing information.
  • the first signaling may be Path signaling.
  • the source node device further includes a first determining module, a registration module and a bandwidth processing module:
  • the first receiving module is further configured to receive a second message, where the second message is a feedback signal sent by the first signaling along the display routing information;
  • the second message may be Resv information.
  • a first determining module configured to determine whether the port bandwidth information obtained according to the link information satisfies the bandwidth request information, and if yes, send a VLAN ID to a registration module;
  • Registration module used to register the VLAN ID on the port.
  • the node device includes:
  • a bandwidth processing module configured to receive the port bandwidth information and the bandwidth request information sent by the first determining module, and subtract the bandwidth request quantity from the node port bandwidth.
  • Embodiment 5 of the present invention provides a sink node device. As shown in FIG. 9, the method includes: a second collecting module, configured to collect link information, where the link information includes port bandwidth information of each neighbor node. .
  • the second receiving module is configured to receive the first signaling, where the first signaling includes a VLAN ID, bandwidth request information, and explicit routing information.
  • the first signaling may be Path signaling.
  • a second determining module configured to determine whether the port bandwidth information obtained according to the link information satisfies the bandwidth request information, and if yes, send a VLAN ID to the registration module, and send the second information to the second sending module, where The second message is a feedback signal sent by the first signaling along the display routing information.
  • the second message may be Resv information.
  • Registration module used to register the VLAN ID on the port.
  • the second sending module is configured to send the second information.
  • the node device includes:
  • Embodiment 6 of the present invention provides an intermediate node device, as shown in FIG. 10, including: a third receiving module, configured to receive first signaling or second information, where the first signaling includes The at least one VLAN ID, bandwidth request information, and explicit routing information that are not used, the second message is a feedback signal sent by the first signaling along the display routing information; when the first signaling is received Sending the first signaling to the storage module; and when receiving the second information, sending the second information to the third determining module.
  • a storage module configured to store various information in the first signaling, where the first signaling includes a VLAN ID, bandwidth request information, and explicit routing information; and sending the first signaling to the third sending Module and third judgment module.
  • the third collection module is configured to collect link information, where the link information includes port bandwidth information of each neighbor node.
  • a third determining module configured to receive the link information and the first signaling, determine whether the port bandwidth information obtained according to the link information satisfies the bandwidth request information, and if yes, send a VLAN ID to The registration module sends the second information to the third sending module.
  • Registration module used to register the VLAN ID on the port.
  • the third sending module is configured to send the first signaling or the second information.
  • the first signaling may be Path signaling
  • the second message may be Resv information
  • the node device includes:
  • a bandwidth processing module configured to receive the port bandwidth information and the bandwidth request information sent by the third determining module, and subtract the bandwidth request quantity from the node port bandwidth.
  • Embodiment 7 of the present invention provides a network system for establishing a virtual local area network connection, as shown in FIG. 11, including:
  • a first node configured to collect routing information and link information, where the routing information includes a network topology and an updated network VLAN ID database, where the link information includes port bandwidth information of each neighbor node; Routing information and at least one VLAN ID that is not used; sending first signaling, where the first signaling includes a VLAN ID, bandwidth request information, and explicit routing information.
  • a second node configured to collect link information, where the link information includes port bandwidth information of each neighbor node; receiving the first signaling, determining whether the node port bandwidth information obtained according to the link information is satisfied The bandwidth request information, if the VLAN ID is registered, sends the second information, where the second message is a feedback signal sent by the first signaling along the display routing information.
  • the number of bandwidth requests is subtracted from the node port bandwidth.
  • the first node is further configured to: if the second message is received, determine, according to the link information of the node, whether the bandwidth of the node port satisfies the bandwidth request information, and if yes, register the VLAN ID.
  • the number of bandwidth requests is subtracted from the node port bandwidth.
  • the third node may be located between the first node and the second node, where the third node is configured to receive the first signaling, store the information in the first signaling, and send the information. And storing the link information, where the link information includes port bandwidth information of each neighbor node; and when receiving the second information, determining whether the port bandwidth information obtained according to the link information satisfies the first The bandwidth request information included in the signaling, if satisfied, the VLAN ID is registered, and the second information is sent.
  • Embodiment 8 provides another node device, including a receiving module and a registration module: a receiving module, configured to receive first signaling, where the first signaling includes the at least one not used VLAN ID and the explicit routing information.
  • a registration module configured to register a VLAN according to the at least one VLAN ID that is not used
  • a sending module configured to send the first signaling according to the explicit routing information.
  • Embodiment 9 of the present invention provides a network system for establishing a virtual local area network connection, including: a source node, configured to obtain at least one unused VLAN ID and explicit routing information; according to the at least one is not The VLAN ID is used to register the VLAN ID; the first signaling is sent, the first signaling includes the at least one unused VLAN ID and the explicit routing information, and the signaling flows according to the explicit routing information.
  • a source node configured to obtain at least one unused VLAN ID and explicit routing information; according to the at least one is not
  • the VLAN ID is used to register the VLAN ID; the first signaling is sent, the first signaling includes the at least one unused VLAN ID and the explicit routing information, and the signaling flows according to the explicit routing information.
  • At least one intermediate node configured to receive the first signaling; register a VLAN ID according to the at least one VLAN ID that is not used in the first signaling; according to the explicit routing in the first signaling The information transmits the first signaling.
  • a sink node configured to receive the first signaling; and register a VLAN ID according to the at least one VLAN ID that is not used in the first signaling.
  • the technical solution of the embodiment of the present invention has the following advantages: automatic VLAN configuration can be performed in an environment without a spanning tree protocol, and traffic engineering is supported at the same time.

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Description

一种建立虚拟局域网连接的方法、 设备与系统 本申请要求于 2008 年 11 月 26 日提交中国专利局、 申请号为 200810217686.4、 发明名称为 "一种建立虚拟局域网连接的方法、 设备与系 统" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信领域, 尤其涉及一种建立虚拟局域网连接的方 法、 设备与系统。
背景技术
以太网作为一种局域网技术, 自诞生以来, 应用越来越广泛, 目前已经 开始用于运营商网络, 作为一种接入汇聚技术使用。 在目前的运营商网络 中, 网络比较简单, 通常通过网管配置来建立 VLAN ( Virtual Local Area Network, 虚拟局域网) 连接。 但是随着以太网应用越来越广泛, 网络越来 越复杂, 单纯通过网管配置会有很高的代价。
目前定义了一种自动注册 VLAN 的机制—— GVRP ( Generic VLAN Registration Protocol, 通用 VLAN注册协议) , 它在生成树协议环境下运 行。 当在边缘端口上配置了一个 VLAN时, GVRP机制将该信息在网络中 扩散, 如果网络中一个端口在两个方向都收到带有相同 VLAN ID的 GVRP 报文, 则自动将 VLAN ID注册到这个端口上。
现有的 GVRP机制需要生成树协议的支持, 否则 GVRP报文在网络中 传输时会成环, 影响 VLAN的连接。 然而, 在实际网络中, 由于生成树收 敛速度较慢, 较少使用, 所以 GVRP在实际中应用很少; 另一方面, GVRP 并不支持流量工程, 而实际网络通常需要流量工程的支持。
发明内容
本发明实施例提供一种建立虚拟局域网连接的方法, 可以在无生成树的 环境下进行自动 VLAN的配置。 本发明实施例一方面提出一种建立虚拟局域网连接的方法, 包括以下歩 骤:
接收第一信令, 所述第一信令包括至少一个没有被使用的 VLAN ID和 显式路由信息;
根据所述至少一个没有被使用的 VLAN ID注册 VLAN ID;
根据所述显式路由信息发送所述第一信令。
另一方面, 本发明实施例提出一种建立虚拟局域网连接的方法, 包括以 下歩骤:
源节点获得至少一个没有被使用的 VLAN ID和显式路由信息, 根据所 述至少一个没有被使用的 VLAN ID注册 VLAN ID, 发送第一信令, 所述第 一信令包括所述至少一个没有被使用的 VLAN ID和所述显式路由信息, 所 述信令根据显式路由信息流经各个节点;
至少一个中间节点接收所述第一信令, 根据所述第一信令中所述至少一 个没有被使用的 VLAN ID注册 VLAN ID, 根据所述第一信令中所述显式路 由信息发送所述第一信令;
宿节点接收所述第一信令, 根据所述第一信令中所述至少一个没有被使 用的 VLAN ID注册 VLAN ID。
另一方面, 本发明实施例还提供了一种节点设备, 包括:
接收模块, 用于接收第一信令, 所述第一信令包括所述至少一个没有被 使用的 VLAN ID和所述显式路由信息;
注册模块, 用于根据所述至少一个没有被使用的 VLAN ID注册 VLAN
ID;
发送模块, 用于根据所述显式路由信息发送所述第一信令。
另一方面, 本发明实施例还提供了一种建立虚拟局域网连接的系统, 包 括:
源节点, 用于获得至少一个没有被使用的 VLAN ID和显式路由信息; 根据所述至少一个没有被使用的 VLAN ID注册 VLAN ID; 发送第一信令, 所述第一信令包括所述至少一个没有被使用的 VLAN ID和所述显式路由信 息, 所述信令根据显式路由信息流经各个节点;
至少一个中间节点, 用于接收所述第一信令; 根据所述第一信令中所述 至少一个没有被使用的 VLAN ID注册 VLAN ID; 根据所述第一信令中所述 显式路由信息发送所述第一信令;
宿节点, 用于接收所述第一信令; 根据所述第一信令中所述至少一个没 有被使用的 VLAN ID注册 VLAN ID。
另一方面, 本发明实施例提出一种建立虚拟局域网连接的方法, 包括以 下歩骤:
获得链路信息, 所述链路信息包括各邻居节点的端口带宽信息; 接收第一信令, 所述第一信令包括至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息;
将所述第一信令携带的消息储存在本节点, 并按照所述显示路由信息发 送所述第一信令;
如果接收到第二消息, 所述第二消息是所述第一信令沿所述显示路由信 息发送的反馈信号, 根据本节点所述链路信息判断节点端口带宽是否满足所 述带宽请求信息, 如果满足, 发送第二消息, 注册 VLAN ID。
另一方面, 本发明实施例提出一种建立虚拟局域网连接的方法, 包括以 下歩骤:
源节点获得至少一个没有被使用的 VLAN ID、 显式路由信息和链路信 息; 发送第一信令, 所述第一信令包括所述至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息;
至少一个中间节点接收所述第一信令, 将所述第一信令携带的消息储存 在本节点, 并发送所述第一信令;
宿节点获得本节点的链路信息, 接收中间节点发送的所述第一信令, 根 据本节点的链路信息判断节点端口带宽是否满足所述带宽请求信息, 如果满 足, 发送第二消息, 所述第二消息是所述第一信令沿所述显示路由信息发送 的反馈信号, 注册 VLAN ID;
所述至少一个中间节点如果接收到第二消息, 根据本节点所述链路信息 判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 发送第二消息, 注册 VLAN ID;
所述源节点接收到中间节点发送的第二消息, 根据本节点所述链路信息 判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID。
另一方面, 本发明实施例还提供了一种节点设备, 包括:
第三接收模块, 用于接收第一信令或第二信息, 所述第一信令包括所述 至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息, 所述第 二消息是所述第一信令沿所述显示路由信息发送的反馈信号; 当接收到第一 信令时, 发送所述第一信令至储存模块; 当接收到第二信息, 发送所述第二 信息至第三判断模块;
储存模块, 用于储存所述第一信令内的各种信息, 所述第一信令包括 VLAN ID、 带宽请求信息、 显式路由信息; 并将所述第一信令发送至第三 发送模块和第三判断模块;
第三收集模块, 用于收集链路信息, 所述链路信息包括各邻居节点的端 口带宽信息;
第三判断模块, 用于接收所述链路信息和所述第一信令, 判断根据所述 链路信息得到的所述端口带宽信息是否满足所述带宽请求信息, 如果满足, 发送 VLAN ID给注册模块, 发送第二信息给第三发送模块;
注册模块, 用于在端口上注册 VLAN ID;
第三发送模块, 用于发送所述第一信令或所述第二信息。
又一方面, 本发明实施例还提供了一种建立虚拟局域网连接的系统, 包 括:
第一节点, 用于收集路由信息和链路信息, 所述路由信息包括网络拓扑 和更新后的网络 VLAN ID数据库, 所述链路信息包括各邻居节点的端口带 宽信息; 根据路由信息获得显式路由信息和至少一个没有被使用的 VLAN ID; 发送第一信令, 所述第一信令包括 VLAN ID、 带宽请求信息、 显式路 由 in息;
第二节点, 用于收集链路信息, 所述链路信息包括各邻居节点的端口带 宽信息; 接收所述第一信令, 判断根据所述链路信息得到的所述节点端口带 宽信息是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID, 发送第二 信息, 所述第二消息是所述第一信令沿所述显示路由信息发送的反馈信号; 所述第一节点, 还用于如果接收到第二消息, 根据本节点所述链路信息 判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动 VLAN的配置。
附图说明
图 la为本发明实施例, 一种建立虚拟局域网连接的方法的流程示意图; 图 lb为本发明又一实施例, 一种建立虚拟局域网连接的方法的流程示 意图;
图 lc为本发明又一实施例, 一种建立虚拟局域网连接的方法的流程示 意图;
图 Id为本发明再一实施例, 一种建立虚拟局域网连接的方法的流程示 意图;
图 2为本发明实施例一, 一种建立虚拟局域网连接的方法的流程示意 图;
图 3为本发明实施例一, 一种网络结构示意图; 图 4为本发明实施例二, 一种建立虚拟局域网连接的方法的流程示意 图;
图 5为本发明实施例二, 一种网络结构示意图;
图 6为本发明实施例三, 一种建立虚拟局域网连接的方法的流程示意 图;
图 7为本发明实施例三, 一种网络结构示意图;
图 8为本发明实施例四, 一种节点设备结构示意图;
图 9为本发明实施例五, 一种节点设备结构示意图;
图 10为本发明实施例六, 一种节点设备结构示意图;
图 11为本发明实施例七, 一种建立虚拟局域网连接的网络系统示意图。 具体实施方式
本发明实施例具体方法流程如图 la所示, 包括以下歩骤:
歩骤 SlOla, 接收第一信令, 所述第一信令包括至少一个没有被使用的 VLAN ID和显式路由信息。
其中, 第一信令中的所述至少一个没有被使用的 VLAN ID和所述显式 路由信息具体可以通过收集路由信息来实现, 该路由信息包括网络拓扑和更 新后的网络 VLAN ID数据库, 再根据路由信息获得显式路由信息和至少一 个没有被使用的 VLAN ID; 也可以通过网管直接分发的方式得到至少一个 没有被使用的 VLAN ID和显式路由信息。
歩骤 S102a, 根据所述至少一个没有被使用的 VLAN ID注册 VLAN
ID。
歩骤 S103a, 根据所述显式路由信息发送所述第一信令。
在本发明实施例中, 当进行点到点的 VLAN连接时, 所述第一信令还 可以包括双向指示信息, 所述双向指示信息表示正反两个方向都使用同一个 VLAN ID; 所述注册 VLAN ID具体为: 注册 VLAN ID, 并执行所述双向指 示信息的指示。 在本发明实施例中, 当进行点到点的 VLAN连接时, 所述第一信令还 可以包括不启动学习的指示, 所述不启动学习的指示表示要求禁止其他节点 针对所述 VLAN学习;
所述注册 VLAN ID具体为: 注册 VLAN ID, 并执行所述不启动学习的 指示。
在本发明实施例中, 当进行点到多点的 VLAN连接时, 所述第一信令 包括所述至少一个没有被使用的 VLAN ID具体可以为:
所述第一信令包括上行 VLAN ID和下行 VLAN ID; 所述注册 VLAN ID具体可以为:
上行 VLAN ID注册在上行端口, 下行 VLAN ID注册在下行端口。
在本发明实施例中, 当进行点到多点的 VLAN连接时, 所述第一信令 还可以包括一个共享学习指示, 所述共享学习指示表示上行 VLAN和下行 VLAN配置成共享学习的模式;
所述注册 VLAN ID还可以包括: 执行所述共享学习指示。
在本发明实施例中, 当进行多点到多点的 VLAN连接时, 所述第一信 令还可以包括双向指示信息, 所述双向指示信息表示正反两个方向都使用同 一个 VLAN ID; 所述注册 VLAN ID具体可以为: 注册 VLAN ID, 并执行 所述双向指示信息的指示。
在本发明实施例中, 当进行多点到多点的 VLAN连接时, 所述第一信 令还可以包括一个启动学习指示, 所述启动学习指示表示打开 VLAN的学 习功能;
所述注册 VLAN ID可以包括: 注册 VLAN ID, 并执行所述启动学习的 指示。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动 VLAN的配置。
本发明又一实施例具体方法流程如图 lb所示, 包括以下歩骤: 歩骤 SlOlb, 源节点获得至少一个没有被使用的 VLAN ID和显式路由 信息, 根据所述至少一个没有被使用的 VLAN ID注册 VLAN ID, 发送第一 信令, 所述第一信令包括所述至少一个没有被使用的 VLAN ID和所述显式 路由信息, 所述信令根据显式路由信息流经各个节点。
歩骤 S102b, 至少一个中间节点接收所述第一信令, 根据所述第一信令 中所述至少一个没有被使用的 VLAN ID注册 VLAN ID, 根据所述第一信令 中所述显式路由信息发送所述第一信令。
歩骤 S103b, 宿节点接收所述第一信令, 根据所述第一信令中所述至少 一个没有被使用的 VLAN ID注册 VLAN ID。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动
VLAN的配置。
本发明再一实施例在上两个实施例的基础上, 加入了流量工程的判断歩 骤, 具体方法流程如图 lc所示, 包括以下歩骤:
歩骤 SlOlc, 获得链路信息, 所述链路信息包括各邻居节点的端口带宽 信息。
歩骤 S102c, 接收第一信令, 所述第一信令包括至少一个没有被使用的 VLAN ID, 带宽请求信息、 显式路由信息。
该第一信令具体可以是 Path信令。
歩骤 S103c, 将所述第一信令携带的消息储存在本节点, 并按照所述显 示路由信息发送所述第一信令。
具体为, 将 Path信令中至少一个没有被使用的 VLAN ID、 带宽请求信 息、 显式路由信息保存在本节点中。
歩骤 S104c, 如果接收到第二消息, 所述第二消息是所述第一信令沿所 述显示路由信息发送的反馈信号, 根据本节点所述链路信息判断节点端口带 宽是否满足所述带宽请求信息, 如果满足, 发送第二消息, 注册 VLAN ID。 具体为, 第二消息可以是 Resv消息。
进一歩的, 在注册 VLAN ID后, 从所述节点端口带宽中减去所述带宽 请求数量。
在本发明实施例中, 当进行点到点的 VLAN连接时, 所述第一信令还 可以包括双向指示信息, 所述双向指示信息表示正反两个方向都使用同一个 VLAN ID; 所述注册 VLAN ID具体为: 注册 VLAN ID, 并执行所述双向指 示信息的指示。
在本发明实施例中, 当进行点到点的 VLAN连接时, 所述第一信令还 可以包括不启动学习的指示, 所述不启动学习的指示表示要求禁止其他节点 针对所述 VLAN学习;
所述注册 VLAN ID具体为: 注册 VLAN ID, 并执行所述不启动学习的 指示。
在本发明实施例中, 当进行点到多点的 VLAN连接时, 所述第一信令 包括所述至少一个没有被使用的 VLAN ID具体可以为:
所述第一信令包括上行 VLAN ID和下行 VLAN ID; 所述注册 VLAN
ID具体可以为:
上行 VLAN ID注册在上行端口, 下行 VLAN ID注册在下行端口。
在本发明实施例中, 当进行点到多点的 VLAN连接时, 所述第一信令 还可以包括一个共享学习指示, 所述共享学习指示表示上行 VLAN和下行 VLAN配置成共享学习的模式;
所述注册 VLAN ID还可以包括: 执行所述共享学习指示。
在本发明实施例中, 当进行多点到多点的 VLAN连接时, 所述第一信 令还可以包括双向指示信息, 所述双向指示信息表示正反两个方向都使用同 一个 VLAN ID; 所述注册 VLAN ID具体可以为: 注册 VLAN ID, 并执行 所述双向指示信息的指示。
在本发明实施例中, 当进行多点到多点的 VLAN连接时, 所述第一信 令还可以包括一个启动学习指示, 所述启动学习指示表示打开 VLAN的学 习功能;
所述注册 VLAN ID可以包括: 注册 VLAN ID, 并执行所述启动学习的 指示。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动
VLAN的配置, 并且同时支持流量工程。
本发明再一实施例在上两个实施例的基础上, 加入了流量工程的判断歩 骤, 具体方法流程如图 Id所示, 包括以下歩骤:
歩骤 SlOld, 源节点获得至少一个没有被使用的 VLAN ID、 显式路由 信息和链路信息; 发送第一信令, 所述第一信令包括所述至少一个没有被使 用的 VLAN ID、 带宽请求信息、 显式路由信息。
歩骤 S102d, 至少一个中间节点接收所述第一信令, 将所述第一信令携 带的消息储存在本节点, 并发送所述第一信令。
该第一信令具体可以是 Path信令。
歩骤 S103d, 宿节点获得本节点的链路信息, 接收中间节点发送的所述 第一信令, 根据本节点的链路信息判断节点端口带宽是否满足所述带宽请求 信息, 如果满足, 发送第二消息, 所述第二消息是所述第一信令沿所述显示 路由信息发送的反馈信号, 注册 VLAN ID。
具体地, 第二消息可以是 Resv消息。
歩骤 S104d, 所述至少一个中间节点如果接收到第二消息, 根据本节点 所述链路信息判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 发 送第二消息, 注册 VLAN ID。
歩骤 S105d, 所述源节点接收到中间节点发送的第二消息, 根据本节点 所述链路信息判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 注 册 VLAN ID。
进一歩的, 在上述歩骤 S103d、 歩骤 S104d、 歩骤 S105d 中在注册 VLAN ID后, 从所述节点端口带宽中减去所述带宽请求数量。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动
VLAN的配置, 并且同时支持流量工程。
为了更清楚地描述本发明实施例, 下面结合附图和实施例, 对本发明的 具体实施方式作进一歩详细描述: 实施例一:
如图 2所示, 为本发明实施例一, 一种建立虚拟局域网连接的方法的流 程示意图。 本实施例解决了点到点 VLAN连接。 如图 3所示的网络结构 图, 以节点 A发起信令, 建立节点 A到节点 D之间的点到点 VLAN隧道为 例, 包括以下歩骤:
歩骤 S201 , 利用 OSPF ( Open Shortest Path First , 开放最短路径优 先) 、 IS-IS (Intermediate system to intermediate system, 中间系统到中间系 统) 等路由协议进行路由收集; 并利用 LLDP ( Link Layer Discovery Protocol, 链路层发现协议) 或 LMP (Link Management Protocol, 链路管理 协议) 协议为每个节点收集链路信息。
本发明实施例以 0SPF路由协议为例。 各个节点运行 0SPF路由协议, 在向全网扩散的 LSA (Link State Advertisement, 链路状态广播) 报文中扩 展携带各个节点上端口的二层 MAC地址和端口上已注册的 VLAN ID信 息。
各个节点在接收到来自网络其它节点的 LSA报文后, 根据其中携带的
MAC地址信息获得全网二层拓扑, 根据其中携带的已注册 VLAN ID信息 维护全网已使用或未使用的 VLAN ID数据库。
本发明实施例以 LLDP协议为例来收集链路信息。 在各个节点运行 OSPF路由协议的同时, 向邻居节点发送 LLDP报文, 该 LLDP报文中携带 本节点的端口带宽信息。 各个节点接收到邻居节点发送过来的 LLDP报文 后, 根据其中的端口带宽信息维护本节点所连接的各个链路的带宽信息数据 库。
歩骤 S202 , 根据路由信息获得显式路由信息和一个没有被使用的
Figure imgf000014_0001
当节点 A接收到建立连接的请求时, 根据自身节点的拓扑信息计算路 由, 获得显式路由信息, 并根据 VLAN ID数据库选择一个目前还没有被使 用的 VLAN ID。
如图 3所示, 从节点 A到节点 D的显式路由信息为 A->B->C->D, 并 选择一个目前没有被使用的 VLAN ID, 比如 VLAN ID为 5。
歩骤 S203 , 源节点发送 Path信令, 该 Path信令携带 VLAN ID、 带宽 请求信息、 显式路由信息、 双向指示信息以及不启动学习的指示。
节点 A根据显式路由信息发送 Path信令, 其中携带 VLAN ID、 带宽请 求信息、 显式路由信息、 双向指示信息以及不启动学习的指示。 该双向指示 信息表示正反两个方向都使用同一个 VLAN ID, 即 A->B->C->D的 VLAN ID为 5, 同时 D->C->B->A的 VLAN ID也同样为 5。 在信令中提供不启动 学习的指示, 表示要求其他节点针对这个 VLAN禁止学习。
歩骤 S204, 中间节点接收所述 Path信令, 将所述 Path信令携带的消息 储存在本节点, 并发送所述 Path信令。
Path信令在经过各个中间节点时, 各个中间节点将 Path信令中携带的 各种信息存储在本节点上, 并将 Path信令转发给下一个节点。
歩骤 S205 , 宿节点接收到 Path信令, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 发送 Resv消息, 注册 VLAN ID, 并从所述节点端口带宽中减去所述带宽请求数量, 执行不启动 学习的指示。
节点 D在接收到 Path信令后, 判断本节点端口带宽是否满足带宽请 求, 如果满足, 发送 Resv消息给节点 C, 则在接收到 Path信令和发送 Resv 消息的端口上注册 VLAN ID , 并根据信令中不启动学习的指示, 关闭该 VLAN上的学习功能, 并且节点 D从节点端口带宽中减去带宽请求数量; 如果不满足, 返回 PathErr消息给 A节点。
歩骤 S206, 中间节点接收 Resv消息, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 发送 Resv消息, 注册 VLAN ID, 并从所述节点端口带宽中减去所述带宽请求数量, 执行不启动 学习的指示。
节点 C接收到 Resv消息后, 检查本节点端口带宽是否满足带宽请求, 如果满足, 则在接收到 Path信令和 Resv消息的两个端口上注册 VLAN ID, 并根据信令中不启动学习的指示, 关闭该 VLAN上的学习功能, 并且 节点 C从节点端口带宽中减去带宽请求数量, 并发送 Resv消息给节点 B; 如果不满足, 返回 PathErr消息给 A节点, 返回 ResvErr消息给 D节点。 重 复上述操作一直到节点 A接收到消息。
歩骤 S207, 源节点接收到 Resv消息, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID, 并从 所述节点端口带宽中减去所述带宽请求数量, 执行不启动学习的指示。
节点 A收到节点 B发送的 Resv消息, 检查本节点端口带宽是否满足带 宽请求, 如果满足, 则在接收到 Path信令和 Resv消息的两个端口上注册 VLAN ID , 并根据信令中不启动学习的指示, 关闭该 VLAN上的学习功 能, 并且节点 A从节点端口带宽中减去带宽请求数量。
在上述歩骤 S201 中, 各个节点的路由收集和链路信息收集并没有严格 的顺序关系。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动 VLAN的配置, 并且同时支持流量工程。 实施例二: 如图 4所示, 为本发明实施例二, 一种建立虚拟局域网连接的方法的流 程示意图。 本实施例解决了点到多点非对称 VLAN连接, 如图 5所示的网 络结构图, 以节点 A发起信令, 建立节点 A到节点 D和节点 A到节点 H之 间的点到多点非对称 VLAN隧道为例, 包括以下歩骤:
歩骤 S401 , 利用 OSPF ( Open Shortest Path First , 开放最短路径优 先) 、 IS-IS (Intermediate system to intermediate system, 中间系统到中间系 统) 等路由协议进行路由收集; 并利用 LLDP ( Link Layer Discovery Protocol, 链路层发现协议) 或 LMP (Link Management Protocol, 链路管理 协议) 协议为每个节点收集链路信息。
本发明实施例以 OSPF路由协议为例。 各个节点运行 OSPF路由协议, 在向全网扩散的 LSA (Link State Advertisement, 链路状态广播) 报文中扩 展携带各个节点上端口的二层 MAC地址和端口上已注册的 VLAN ID信 息。
各个节点在接收到来自网络其它节点的 LSA报文后, 根据其中携带的 MAC地址信息获得全网二层拓扑, 根据其中携带的已注册 VLAN ID信息 维护全网已使用或未使用的 VLAN ID数据库。
本发明实施例以 LLDP协议为例来收集链路信息。 在各个节点运行 OSPF路由协议的同时, 向邻居节点发送 LLDP报文, 该 LLDP报文中携带 本节点的端口带宽信息。 各个节点接收到邻居节点发送过来的 LLDP报文 后, 根据其中的端口带宽信息维护本节点所连接的各个链路的带宽信息数据 库。
歩骤 S402 , 根据路由信息获得显式路由信息和两个没有被使用的 VLAN ID
当节点 A接收到建立连接的请求时, 根据自身节点的拓扑信息计算路 由, 获得显式路由信息, 并根据 VLAN ID数据库选择一个目前还没有被使 用的 VLAN ID。 如图 5所示, 从节点 A到节点 D的显式路由信息为 A->B->C->D, 从 节点 A到节点 H的显式路由信息为 A->B->F->G->H, 并选择两个目前没有 被使用的 VLAN ID, 分别作为上行 VLAN ID和下行 VLAN ID, 比如上行 VLAN ID为 5, 下行 VLAN ID为 6。
歩骤 S403 , 源节点发送 Path信令, 该 Path信令携带上行 VLAN ID和 下行 VLAN ID及其对应的带宽请求消息, 以及一个共享学习指示。
节点 A根据显式路由信息发送 Path信令, 其中携带上行 VLAN ID和下 行 VLAN ID、 及其对应的上行带宽请求信息和下行带宽请求消息、 显式路 由信息、 以及共享学习指示。 共享学习指示, 表示这两个 VLAN配置成共 享学习的模式。
歩骤 S404, 中间节点接收所述 Path信令, 将所述 Path信令携带的消息 储存在本节点, 并发送所述 Path信令。
Path信令在经过各个中间节点时, 各个中间节点将 Path信令中携带的 各种信息存储在本节点上。
歩骤 S405 , 宿节点接收到 Path信令, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 发送 Resv消息, 注册 VLAN ID, 并从所述节点端口带宽中减去所述带宽请求数量, 执行共享学 习指示。
例如, 节点 D在接收到 Path信令后, 判断本节点端口带宽是否满足带 宽请求, 如果满足, 发送 Resv消息给节点 C, 并在接收到 Path信令的端口 上注册上行 VLAN ID, 在发送 Resv消息的端口上注册下行 VLAN ID, 并 根据信令中携带的共享学习的指示, 本节点根据该指示配置上行 VLAN和 下行 VLAN为共享学习模式, 并且节点 D从节点端口带宽中减去带宽请求 数量; 如果不满足, 返回 PathErr消息给 A节点。
歩骤 S406, 中间节点接收 Resv消息, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 发送 Resv消息, 注册 VLAN ID, 并从所述节点端口带宽中减去所述带宽请求数量, 执行共享学 习指示。
节点 C接收到 Resv消息后, 检查本节点端口带宽是否满足上下行带宽 请求, 如果满足, 在上行端口注册上行 VLAN ID , 在下行端口注册下行 VLAN ID, 并根据信令中携带的共享学习的指示, 本节点根据该指示配置 上行 VLAN和下行 VLAN为共享学习模式, 并且节点 C从节点端口带宽中 减去下行带宽请求数量, 并发送 Resv消息给节点 B; 如果不满足, 返回 PathErr消息给 A节点,返回 ResvErr消息给 D节点。 重复上述操作一直到节 点 A接收到消息。 同理适用于节点 H至节点 A。
歩骤 S407, 源节点接收到 Resv消息, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID, 并从 所述节点端口带宽中减去所述带宽请求数量, 执行共享学习指示。
节点 A收到节点 B发送的 Resv消息, 检查本节点端口带宽是否满足带 宽请求, 如果满足, 在上行端口注册上行 VLAN ID, 在下行端口注册下行 VLAN ID, 并根据信令中携带的共享学习的指示, 本节点根据该指示配置 上行 VLAN和下行 VLAN为共享学习模式, 并且节点 A从节点端口带宽中 减去下行带宽请求数量。
在上述歩骤 S401 中, 各个节点的路由收集和链路信息收集并没有严格 的顺序关系。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动
VLAN的配置, 并且同时支持流量工程。 实施例三:
如图 6所示, 为本发明实施例三, 一种建立虚拟局域网连接的方法的流 程示意图。 本实施例解决了多点到多点非对称 VLAN连接, 如图 7所示的 网络结构图, 以节点 A发起信令, 建立多点到多点 VLAN隧道为例, 包括 以下歩骤:
歩骤 S601 , 利用 OSPF ( Open Shortest Path First , 开放最短路径优 先) 、 IS-IS (Intermediate system to intermediate system, 中间系统到中间系 统) 等路由协议进行路由收集; 并利用 LLDP ( Link Layer Discovery Protocol, 链路层发现协议) 或 LMP (Link Management Protocol, 链路管理 协议) 协议为每个节点收集链路信息。
本发明实施例以 OSPF路由协议为例。 各个节点运行 OSPF路由协议, 在向全网扩散的 LSA (Link State Advertisement, 链路状态广播) 报文中扩 展携带各个节点上端口的二层 MAC地址和端口上已注册的 VLAN ID信息。
各个节点在接收到来自网络其它节点的 LSA报文后, 根据其中携带的
MAC地址信息获得全网二层拓扑, 根据其中携带的已注册 VLAN ID信息 维护全网已使用或未使用的 VLAN ID数据库。
本发明实施例以 LLDP协议为例来收集链路信息。 在各个节点运行
OSPF路由协议的同时, 向邻居节点发送 LLDP报文, 该 LLDP报文中携带 本节点的端口带宽信息。 各个节点接收到邻居节点发送过来的 LLDP报文 后, 根据其中的端口带宽信息维护本节点所连接的各个链路的带宽信息数据 库。
歩骤 S602 , 根据路由信息获得显式路由信息和一个没有被使用的
Figure imgf000019_0001
当节点 A接收到建立连接的请求时, 节点 A根据自身节点的路由信息 计算出一个生成树作为多点到多点的连接拓扑, 获得显式路由信息, 并根据 VLAN ID数据库选择一个目前还没有被使用的 VLAN ID。
歩骤 S603 , 源节点发送 Path信令, 该 Path信令携带 VLAN ID、 带宽 请求信息、 显式路由信息、 双向指示信息以及一个启动学习指示。
节点 A根据显式路由信息发送点到多点的 Path信令, 其中携带 VLAN
ID、 带宽请求信息、 显式路由信息、 双向指示信息以及一个启动学习指 示。 该双向指示信息表示正反两个方向都使用同一个 VLAN ID。 在信令中 提供启动学习的指示, 表示打开该 VLAN的学习功能。
歩骤 S604, 中间节点接收所述 Path信令, 将所述 Path信令携带的消息 储存在本节点, 并发送所述 Path信令。
Path信令在经过各个中间节点时, 各个中间节点将 Path信令中携带的 各种信息存储在本节点上。
歩骤 S605 , 宿节点接收到 Path信令, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 发送 Resv消息, 注册 VLAN ID, 并从所述节点端口带宽中减去所述带宽请求数量, 执行启动学 习指示。
例如, 节点 D在接收到 Path信令后, 判断本节点端口带宽是否满足带 宽请求, 如果满足, 发送 Resv消息给节点 C, 并在接收到 Path信令和发送 Resv消息的端口上注册 VLAN ID, 并根据信令中携带的启动学习的指示, 打开该 VLAN上的学习功能, 并且节点 D从节点端口带宽中减去带宽请求 数量; 如果不满足, 返回 PathErr消息给 A节点。
歩骤 S606, 中间节点接收 Resv消息, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 发送 Resv消息, 注册 VLAN ID, 并从所述节点端口带宽中减去所述带宽请求数量, 执行启动学 习指示。
节点 C接收到 Resv消息后, 检查本节点端口带宽是否满足带宽请求, 如果满足, 在接收到 Path信令和 Resv消息的两个端口上注册 VLAN ID, 并根据信令中携带的启动学习的指示, 打开该 VLAN的学习功能, 并且节 点 C从端口带宽中减去上行带宽请求数量和下行带宽请求数量, 并发送 Resv消息给节点 B ; 如果不满足, 返回 PathErr消息给 A节点, 返回 ResvErr消息给 D节点。 重复上述操作一直到节点 A接收到消息。 同理适用 于节点 H至节点 A, 节点 E至节点 A。 歩骤 S607, 源节点接收到 Resv消息, 根据本节点所述链路信息判断节 点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID, 并从 所述节点端口带宽中减去所述带宽请求数量, 执行启动学习指示。
节点 A收到节点 B发送的 Resv消息, 检查本节点端口带宽是否满足带 宽请求, 如果满足, 在上接收到 Path信令和 Resv消息的两个端口上注册 VLAN ID, 并根据信令中携带的启动学习的指示, 打开该 VLAN的学习功 能, 并且节点 A从端口带宽中减去上行带宽请求数量和下行带宽请求数 在上述歩骤 S601 中, 各个节点的路由收集和链路信息收集并没有严格 的顺序关系。
本发明实施例的技术方案, 可以在无生成树协议的环境下进行自动 VLAN的配置, 并且同时支持流量工程。 实施例四: 本发明实施例四提供了一种源节点设备, 结合图 8所示, 包括: 第一收集模块, 用于收集路由信息和链路信息, 所述路由信息包括网络 拓扑和更新后的网络 VLAN ID数据库, 所述链路信息包括各邻居节点的端 口带宽信息。
分析模块, 用于根据从所述收集模块发送过来的所述路由信息获得显式 路由信息和至少一个没有被使用的 VLAN ID。
第一接收模块, 用于接收带宽请求信息。
第一发送模块, 用于发送第一信令, 所述第一信令包括 VLAN ID、 带 宽请求信息、 显式路由信息。
在实际操作中, 第一信令可以是 Path信令。
进一歩的, 该源节点设备还包括第一判断模块, 注册模块和带宽处理模 块: 第一接收模块, 还用于接收第二消息, 所述第二消息是所述第一信令沿 所述显示路由信息发送的反馈信号;
在实际操作中, 第二消息可以是 Resv信息。
第一判断模块, 用于判断根据所述链路信息得到的所述端口带宽信息是 否满足所述带宽请求信息, 如果满足, 发送 VLAN ID给注册模块;
注册模块, 用于在端口上注册 VLAN ID。
进一歩的, 该节点设备包括:
带宽处理模块, 用于接收所述第一判断模块发送的所述端口带宽信息和 所述带宽请求信息, 将所述节点端口带宽中减去带宽请求数量。
实施例五: 本发明实施例五提供了一种宿节点设备, 结合图 9所示, 包括: 第二收集模块, 用于收集链路信息, 所述链路信息包括各邻居节点的端 口带宽信息。
第二接收模块, 用于接收第一信令, 所述第一信令包括 VLAN ID、 带 宽请求信息、 显式路由信息。
在实际操作中, 第一信令可以是 Path信令。
第二判断模块, 用于判断根据所述链路信息得到的所述端口带宽信息是 否满足所述带宽请求信息, 如果满足, 发送 VLAN ID给注册模块, 发送第 二信息给第二发送模块, 所述第二消息是所述第一信令沿所述显示路由信息 发送的反馈信号。
在实际操作中, 第二消息可以是 Resv信息。
注册模块, 用于在端口上注册 VLAN ID。
第二发送模块, 用于发送所述第二信息。
进一歩的, 该节点设备包括:
带宽处理模块, 用于接收所述第二判断模块发送的所述端口带宽信息和 所述带宽请求信息, 将所述节点端口带宽中减去带宽请求数量。 实施例六: 本发明实施例六提供了一种中间节点设备, 结合图 10所示, 包括: 第三接收模块, 用于接收第一信令或第二信息, 所述第一信令包括所述 至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息, 所述第 二消息是所述第一信令沿所述显示路由信息发送的反馈信号; 当接收到第一 信令时, 发送所述第一信令至储存模块; 当接收到第二信息, 发送所述第二 信息至第三判断模块。
储存模块, 用于储存所述第一信令内的各种信息, 所述第一信令包括 VLAN ID、 带宽请求信息、 显式路由信息; 并将所述第一信令发送至第三 发送模块和第三判断模块。
第三收集模块, 用于收集链路信息, 所述链路信息包括各邻居节点的端 口带宽信息。
第三判断模块, 用于接收所述链路信息和所述第一信令, 判断根据所述 链路信息得到的所述端口带宽信息是否满足所述带宽请求信息, 如果满足, 发送 VLAN ID给注册模块, 发送第二信息给第三发送模块。
注册模块, 用于在端口上注册 VLAN ID。
第三发送模块, 用于发送所述第一信令或所述第二信息。
在实际操作中, 第一信令可以是 Path信令, 第二消息可以是 Resv信 息
进一歩的, 该节点设备包括:
带宽处理模块, 用于接收所述第三判断模块发送的所述端口带宽信息和 所述带宽请求信息, 将所述节点端口带宽中减去带宽请求数量。
本发明实施例的技术方案具有以下优点, 可以在无生成树协议的环境下 进行自动 VLAN的配置, 并且同时支持流量工程。 实施例七: 本发明实施例七提供了一种建立虚拟局域网连接的网络系统, 如图 11 所示, 包括:
第一节点, 用于收集路由信息和链路信息, 所述路由信息包括网络拓扑 和更新后的网络 VLAN ID数据库, 所述链路信息包括各邻居节点的端口带 宽信息; 根据路由信息获得显式路由信息和至少一个没有被使用的 VLAN ID; 发送第一信令, 所述第一信令包括 VLAN ID、 带宽请求信息、 显式路 由 in息。
第二节点, 用于收集链路信息, 所述链路信息包括各邻居节点的端口带 宽信息; 接收所述第一信令, 判断根据所述链路信息得到的所述节点端口带 宽信息是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID, 发送第二 信息, 所述第二消息是所述第一信令沿所述显示路由信息发送的反馈信号。
进一歩的, 在注册 VLAN ID以后, 从所述节点端口带宽中减去所述带 宽请求数量。
第一节点, 还用于如果接收到第二消息, 根据本节点所述链路信息判断 节点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID。
进一歩的, 在注册 VLAN ID以后, 从所述节点端口带宽中减去所述带 宽请求数量。
其中, 在第一节点和第二节点之间还可以存在第三节点, 具体为: 第三节点, 用于接收第一信令, 将所述第一信令中的信息存储后将其发 送出去; 还用于收集链路信息, 所述链路信息包括各邻居节点的端口带宽信 息; 接收到第二信息时, 判断根据所述链路信息得到的所述端口带宽信息是 否满足所述第一信令包含的所述带宽请求信息, 如果满足, 注册 VLAN ID, 发送第二信息。
进一歩的, 在注册 VLAN ID以后, 从所述节点端口带宽中减去所述带 宽请求数量。 在实际操作中, 第一信令可以是 Path信令, 第二消息可以是 Resv信 息。 实施例八: 本发明实施例八提供了另一种节点设备, 包括接收模块和注册模块: 接收模块, 用于接收第一信令, 所述第一信令包括所述至少一个没有被 使用的 VLAN ID和所述显式路由信息。
注册模块, 用于根据所述至少一个没有被使用的 VLAN ID注册 VLAN
ID。
发送模块, 用于根据所述显式路由信息发送所述第一信令。
实施例九: 本发明实施例九提供了一种建立虚拟局域网连接的网络系统, 包括: 源节点, 用于获得至少一个没有被使用的 VLAN ID和显式路由信息; 根据所述至少一个没有被使用的 VLAN ID注册 VLAN ID; 发送第一信令, 所述第一信令包括所述至少一个没有被使用的 VLAN ID和所述显式路由信 息, 所述信令根据显式路由信息流经各个节点。
至少一个中间节点, 用于接收所述第一信令; 根据所述第一信令中所述 至少一个没有被使用的 VLAN ID注册 VLAN ID; 根据所述第一信令中所述 显式路由信息发送所述第一信令。
宿节点, 用于接收所述第一信令; 根据所述第一信令中所述至少一个没 有被使用的 VLAN ID注册 VLAN ID。
上述系统模块之间具体的信号处理、 执行过程等内容, 由于与本发明方 法实施例基于同一构想, 可参见本发明实施例一中的叙述, 此处不再赘述。
本发明实施例的技术方案具有以下优点, 可以在无生成树协议的环境下 进行自动 VLAN的配置, 并且同时支持流量工程。
以上所述仅是本发明的优选实施方式, 应当指出, 对于本技术领域的普 通技术人员来说, 在不脱离本发明原理的前提下, 还可以做出若干改进和润 饰, 这些改进和润饰也应视本发明的保护范围。

Claims

权利要求书
1、 一种建立虚拟局域网连接的方法, 其特征在于, 该方法包括: 接收第一信令, 所述第一信令包括至少一个没有被使用的 VLAN ID和 显式路由信息;
根据所述至少一个没有被使用的 VLAN ID注册 VLAN ID;
根据所述显式路由信息发送所述第一信令。
2、 如权利要求 1所述一种建立虚拟局域网连接的方法, 其特征在于, 当进行点到点的 VLAN连接时, 所述第一信令还包括双向指示信息, 所述双向指示信息表示正反两个方向都使用同一个 VLAN ID ; 所述注册 VLAN ID具体为: 注册 VLAN ID, 并执行所述双向指示信息的指示; 和 /或 当进行点到点的 VLAN连接时, 所述第一信令还包括不启动学习的指 示, 所述不启动学习的指示表示要求禁止其他节点针对所述 VLAN学习; 所述注册 VLAN ID具体为: 注册 VLAN ID, 并执行所述不启动学习的指 3、 如权利要求 1所述一种建立虚拟局域网连接的方法, 其特征在于, 当进行点到多点的 VLAN连接时,
所述第一信令包括所述至少一个没有被使用的 VLAN ID具体为: 所述 第一信令包括上行 VLAN ID和下行 VLAN ID;
所述注册 VLAN ID具体为: 上行 VLAN ID注册在上行端口, 下行 VLAN ID注册在下行端口。
4、 如权利要求 3所述一种建立虚拟局域网连接的方法, 其特征在于, 当进行点到多点的 VLAN连接时, 所述第一信令还包括一个共享学习指 示, 所述共享学习指示表示上行 VLAN和下行 VLAN配置成共享学习的模 式;
所述注册 VLAN ID还包括: 执行所述共享学习指示。
5、 如权利要求 1所述一种建立虚拟局域网连接的方法, 其特征在于, 当进行多点到多点的 VLAN连接时, 所述第一信令还包括双向指示信 息, 所述双向指示信息表示正反两个方向都使用同一个 VLAN ID; 所述注 册 VLAN ID具体为: 注册 VLAN ID, 并执行所述双向指示信息的指示; 和
/或
当进行多点到多点的 VLAN连接时, 所述第一信令还包括一个启动学 习指示, 所述启动学习指示表示打开 VLAN的学习功能; 所述注册 VLAN ID包括: 注册 VLAN ID, 并执行所述启动学习的指示。
6、 一种节点设备, 其特征在于, 包括接收模块, 注册模块和发送模 块:
接收模块, 用于接收第一信令, 所述第一信令包括所述至少一个没有被 使用的 VLAN ID和所述显式路由信息;
注册模块, 用于根据所述至少一个没有被使用的 VLAN ID注册 VLAN
ID;
发送模块, 用于根据所述显式路由信息发送所述第一信令。
7、 一种建立虚拟局域网连接的方法, 其特征在于, 该方法包括: 源节点获得至少一个没有被使用的 VLAN ID和显式路由信息, 根据所 述至少一个没有被使用的 VLAN ID注册 VLAN ID, 发送第一信令, 所述第 一信令包括所述至少一个没有被使用的 VLAN ID和所述显式路由信息, 所 述信令根据显式路由信息流经各个节点;
至少一个中间节点接收所述第一信令, 根据所述第一信令中所述至少一 个没有被使用的 VLAN ID注册 VLAN ID, 根据所述第一信令中所述显式路 由信息发送所述第一信令;
宿节点接收所述第一信令, 根据所述第一信令中所述至少一个没有被使 用的 VLAN ID注册 VLAN ID。
8、 一种建立虚拟局域网连接的系统, 其特征在于, 包括:
源节点, 用于获得至少一个没有被使用的 VLAN ID和显式路由信息; 根据所述至少一个没有被使用的 VLAN ID注册 VLAN ID; 发送第一信令, 所述第一信令包括所述至少一个没有被使用的 VLAN ID和所述显式路由信 息, 所述信令根据显式路由信息流经各个节点;
至少一个中间节点, 用于接收所述第一信令; 根据所述第一信令中所述 至少一个没有被使用的 VLAN ID注册 VLAN ID; 根据所述第一信令中所述 显式路由信息发送所述第一信令;
宿节点, 用于接收所述第一信令; 根据所述第一信令中所述至少一个没 有被使用的 VLAN ID注册 VLAN ID。
9、 一种建立虚拟局域网连接的方法, 其特征在于, 该方法包括: 获得链路信息, 所述链路信息包括各邻居节点的端口带宽信息; 接收第一信令, 所述第一信令包括至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息;
将所述第一信令携带的消息储存在本节点, 并按照所述显示路由信息发 送所述第一信令;
如果接收到第二消息, 所述第二消息是所述第一信令沿所述显示路由信 息发送的反馈信号, 根据本节点所述链路信息判断节点端口带宽是否满足所 述带宽请求信息, 如果满足, 发送第二消息, 注册 VLAN ID。
10、 如权利要求 9所述一种建立虚拟局域网连接的方法, 其特征在于, 在所述注册 VLAN ID之后, 从所述节点端口带宽中减去所述带宽请求数 S o
11、 如权利要求 9或 10所述一种建立虚拟局域网连接的方法, 其特征 在于,
当进行点到点的 VLAN连接时, 所述第一信令还包括双向指示信息, 所述双向指示信息表示正反两个方向都使用同一个 VLAN ID ; 所述注册 VLAN ID具体为: 在接收到第一信令和第二消息的端口注册 VLAN ID, 并 执行所述双向指示信息; 和 /或 当进行点到点的 VLAN连接时, 所述第一信令还包括不启动学习的指 示, 所述不启动学习的指示表示要求禁止其他节点针对所述 VLAN学习; 所述注册 VLAN ID 具体为: 在接收到第一信令和第二消息的端口注册 VLAN ID, 并执行所述不启动学习的指示。
12、 如权利要求 9或 10所述一种建立虚拟局域网连接的方法, 其特征 在于, 当进行点到多点的 VLAN连接时,
所述第一信令包括所述至少一个没有被使用的 VLAN ID和所述显式路 由信息具体为: 所述第一信令包括上行 VLAN ID和下行 VLAN ID;
所述注册 VLAN ID具体为: 上行 VLAN ID注册在上行端口, 下行 VLAN ID注册在下行端口。
13、 如权利要求 12所述一种建立虚拟局域网连接的方法, 其特征在 于, 当进行点到多点的 VLAN连接时, 所述第一信令还包括一个共享学习 指示, 所述共享学习指示表示上行 VLAN和下行 VLAN配置成共享学习的 模式;
所述注册 VLAN ID还包括: 执行所述共享学习指示。
14、 如权利要求 9或 10所述一种建立虚拟局域网连接的方法, 其特征 在于,
当进行多点到多点的 VLAN连接时, 所述第一信令还包括双向指示信 息, 所述双向指示信息表示正反两个方向都使用同一个 VLAN ID; 所述注 册 VLAN ID具体为: 在接收到第一信令和第二消息的端口注册 VLAN ID, 并执行所述双向指示信息; 和 /或
当进行多点到多点的 VLAN连接时, 所述第一信令还包括一个启动学 习指示, 所述启动学习指示表示打开 VLAN的学习功能; 所述注册 VLAN ID具体为: 在接收到第一信令和第二消息的端口注册 VLAN ID, 并执行所 述启动学习的指示。
15、 一种节点设备, 其特征在于, 包括第三接收模块, 储存模块, 第三 收集模块, 第三判断模块, 注册模块和第三发送模块:
第三接收模块, 用于接收第一信令或第二信息, 所述第一信令包括所述 至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息, 所述第 二消息是所述第一信令沿所述显示路由信息发送的反馈信号; 当接收到第一 信令时, 发送所述第一信令至储存模块; 当接收到第二信息, 发送所述第二 信息至第三判断模块;
储存模块, 用于储存所述第一信令内的各种信息, 所述第一信令包括 VLAN ID、 带宽请求信息、 显式路由信息; 并将所述第一信令发送至第三 发送模块和第三判断模块;
第三收集模块, 用于收集链路信息, 所述链路信息包括各邻居节点的端 口带宽信息;
第三判断模块, 用于接收所述链路信息和所述第一信令, 判断根据所述 链路信息得到的所述端口带宽信息是否满足所述带宽请求信息, 如果满足, 发送 VLAN ID给注册模块, 发送第二信息给第三发送模块;
注册模块, 用于在端口上注册 VLAN ID;
第三发送模块, 用于发送所述第一信令或所述第二信息。
16、 如权利要求 15所述的一种节点设备, 其特征在于, 还包括 带宽处理模块, 用于接收所述第三判断模块发送的所述端口带宽信息和 所述带宽请求信息, 将所述节点端口带宽中减去带宽请求数量。
17、 一种建立虚拟局域网连接的方法, 其特征在于, 该方法包括: 源节点获得至少一个没有被使用的 VLAN ID、 显式路由信息和链路信 息; 发送第一信令, 所述第一信令包括所述至少一个没有被使用的 VLAN ID、 带宽请求信息、 显式路由信息;
至少一个中间节点接收所述第一信令, 将所述第一信令携带的消息储存 在本节点, 并发送所述第一信令;
宿节点获得本节点的链路信息, 接收中间节点发送的所述第一信令, 根 据本节点的链路信息判断节点端口带宽是否满足所述带宽请求信息, 如果满 足, 发送第二消息, 所述第二消息是所述第一信令沿所述显示路由信息发送 的反馈信号, 注册 VLAN ID;
所述至少一个中间节点如果接收到第二消息, 根据本节点所述链路信息 判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 发送第二消息, 注册 VLAN ID;
所述源节点接收到中间节点发送的第二消息, 根据本节点所述链路信息 判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID。
Figure imgf000032_0001
第一节点, 用于收集路由信息和链路信息, 所述路由信息包括网络拓扑 和更新后的网络 VLAN ID数据库, 所述链路信息包括各邻居节点的端口带 宽信息; 根据路由信息获得显式路由信息和至少一个没有被使用的 VLAN ID; 发送第一信令, 所述第一信令包括 VLAN ID、 带宽请求信息、 显式路 由信息;
第二节点, 用于收集链路信息, 所述链路信息包括各邻居节点的端口带 宽信息; 接收所述第一信令, 判断根据所述链路信息得到的所述节点端口带 宽信息是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID, 发送第二 信息, 所述第二消息是所述第一信令沿所述显示路由信息发送的反馈信号; 所述第一节点, 还用于如果接收到第二消息, 根据本节点所述链路信息 判断节点端口带宽是否满足所述带宽请求信息, 如果满足, 注册 VLAN ID。
19、 如权利要求 18所述的一种网络系统, 其特征在于, 在所述第一节 点与所述第二节点之间还包括第三节点, 具体为:
第三节点, 用于接收第一信令, 将所述第一信令中的信息存储后将其发 送出去; 还用于收集链路信息, 所述链路信息包括各邻居节点的端口带宽信 息; 如果接收到第二信息; 判断根据所述链路信息得到的所述端口带宽信息 是否满足所述第一信令包含的所述带宽请求信息, 如果满足, 注册 VLAN ID, 发送第二信息。
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