WO2013026384A1 - Procédé de transmission de données de service, nœud de réseau et système - Google Patents

Procédé de transmission de données de service, nœud de réseau et système Download PDF

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Publication number
WO2013026384A1
WO2013026384A1 PCT/CN2012/080395 CN2012080395W WO2013026384A1 WO 2013026384 A1 WO2013026384 A1 WO 2013026384A1 CN 2012080395 W CN2012080395 W CN 2012080395W WO 2013026384 A1 WO2013026384 A1 WO 2013026384A1
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WIPO (PCT)
Prior art keywords
service data
network node
trill
vlan
network
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PCT/CN2012/080395
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English (en)
Chinese (zh)
Inventor
郝卫国
马亮亮
施震宇
厉益舟
韩涛
鲁岩
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华为技术有限公司
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Publication of WO2013026384A1 publication Critical patent/WO2013026384A1/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
    • H04L45/38—Flow based routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • H04L12/4645—Details on frame tagging
    • H04L12/465—Details on frame tagging wherein a single frame includes a plurality of VLAN tags
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/14—Multichannel or multilink protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
    • H04L69/26—Special purpose or proprietary protocols or architectures
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/50—Reducing energy consumption in communication networks in wire-line communication networks, e.g. low power modes or reduced link rate

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a network node, and a system for transmitting service data. Background technique
  • TRILL Transparent Interconnec t ion of Lot s of Link
  • the ISIS intermediate sys tem to intermediate sys tem, the middle ten to the middle ten
  • the TRILL protocol can be implemented by extending the I SIS.
  • the current TRILL network also uses a unicast topology for data transmission.
  • All network nodes maintain the same unicast forwarding table and multicast forwarding table, and the entire network follows SPF (Shor tes t Path Fi rs t , the shortest Path-based) principle allocation path may result in the same PHB (Per-Hop Behavior) part of the transmission of different types of service data, which makes the part of the transmission link in the network overloaded, while other parts of the transmission chain
  • PHB Per-Hop Behavior
  • An aspect of the present invention provides a method, a network node, and a system for service data transmission, which are applied to a TRILL network, which can implement load balancing of network transmission links, reduce waste of network resources, and improve network utilization.
  • an aspect of the present invention adopts the following technical solutions:
  • a method for transmitting service data which is applied to a TRILL network, and includes:
  • the network node corresponding to the destination address decapsulates the TRILL-encapsulated and ETH-encapsulated service data to obtain the service data, and sends the decapsulated service data to the corresponding user equipment.
  • An ingress network node applied to a TRILL network, includes:
  • a receiving unit configured to receive service data sent by the user terminal
  • a determining unit configured to determine, according to the data parameter corresponding to the service data, an outer virtual local area network VLAN that transmits the service data
  • an obtaining unit configured to acquire, according to the inner VLAN and the service data destination address, a destination alias of the service data, and obtain the transmission of the service data in the TRILL network according to the destination alias and the outer VLAN Path
  • mapping unit configured to perform the multi-link transparent interconnection TRILL encapsulation and the outer layer Ethernet ETH encapsulation on the service data, so as to map the service data into the outer VLAN;
  • sending unit configured to transmit the service data encapsulated by the TRILL encapsulation and the outer ETH to the forwarding node by using the transmission path, so that the forwarding node transmits the service data encapsulated by the TRILL encapsulation and the outer ETH to the corresponding egress network node.
  • a forwarding network node, applied to a TRILL network includes:
  • a receiving unit configured to receive service data that is sent by the upstream network node and encapsulated by the multi-link transparent interconnect TRILL encapsulation and the outer Ethernet ETH;
  • the parsing unit is configured to parse the service data encapsulated by the TRILL encapsulation and the outer ETH to obtain the TRILL encapsulated service data.
  • a query unit configured to obtain, from the service data transmission path, an address of a next hop network node that transmits the service data
  • a packaging unit configured to: according to the outer virtual local area network VLAN corresponding to the service data, the address of the service data next hop network node, and the service data export network node, the TRILL encapsulated service data Carry out the outer ETH package;
  • a sending unit configured to send the TRILL encapsulated and the ETH encapsulated service data to the next hop network node according to the address of the next hop network node.
  • An egress network node, applied to a TRILL network includes:
  • a receiving unit configured to receive service data that is sent by the upstream node and encapsulated by the multi-link transparent interconnect TRILL and the outer Ethernet ETH;
  • the first parsing unit is configured to parse the service data encapsulated by the TRILL encapsulation and the outer ETH to obtain the TRILL encapsulated service data.
  • a query unit configured to obtain, from the service data transmission path, an address of a next hop network node that transmits the service data
  • a second parsing unit configured to: when the querying unit determines that the egress network node is the last hop network node that transmits the service data, parsing the TRILL encapsulated service data to obtain service data;
  • a sending unit configured to send the service data to a corresponding user equipment.
  • a system for service data transmission, applied to a TRILL network including: an ingress network section Point, forwarding network node, egress network node;
  • the ingress network node is configured to receive service data sent by the user terminal, and determine, according to the data parameter corresponding to the service data, an outer virtual local area network VLAN that transmits the service data; and obtain, according to the inner layer VLAN and the service data destination address Deleting a destination alias of the service data, and acquiring a transmission path of the service data in the TRILL network according to the destination alias and the outer VLAN; performing the multi-link transparent interconnection TRILL encapsulation and the outer layer Ethernet
  • the network ETH is encapsulated to map the service data into the outer VLAN; the service data encapsulated by the TRILL encapsulation and the outer ETH is transmitted to the forwarding node by the transmission path, so that the forwarding node will be encapsulated and externally TRILL
  • the service data of the layer ETH encapsulation is transmitted to the corresponding egress network node; the forwarding network node is configured to receive service data that is sent by the upstream network node and encapsulated by
  • the egress network node is configured to receive service data that is sent by the upstream node and is encapsulated by the multi-link transparent interconnect TRILL encapsulation and the outer layer ETH; and parse the service data of the TRILL encapsulation and the outer ETH encapsulation
  • the TRILL-encapsulated service data obtaining, from the service data transmission path, an address of a next-hop network node that transmits the service data; and when the egress network node is the last-hop network node that transmits the service data,
  • the encapsulated service data is parsed to obtain service data; and the service data is sent to the corresponding user equipment.
  • the entire network is divided into multiple virtual local area network topologies by using an outer VLAN in the TRILL network, and each virtual local area network corresponds to a unicast forwarding table and a multicast forwarding table, and will enter Data in the TRILL network is based on different business data types Or different business data traffic corresponding to different virtual local area networks, thus avoiding all access
  • the service data in the TRILL network needs to query the same forwarding table, which reduces the overlap of different service data types or different service data traffic transmission paths, effectively alleviating the overload of some transmission links in the network, and partially transmitting the transmission links. Too light a problem makes the load of the network transmission link balanced, which saves network resources and increases network utilization.
  • Embodiment 1 is a flowchart of a method for transmitting service data in Embodiment 1 of the present invention
  • Embodiment 1 of the present invention is a schematic diagram of service data transmission in Embodiment 1 of the present invention.
  • Embodiment 3 is a flowchart of a method for transmitting service data in Embodiment 1 of the present invention
  • FIG. 4 is a block diagram showing the composition of an ingress network node in Embodiment 3 of the present invention.
  • FIG. 5 is a block diagram showing the composition of another ingress network node in Embodiment 3 of the present invention.
  • FIG. 6 is a block diagram showing the composition of another ingress network node in Embodiment 3 of the present invention.
  • FIG. 7 is a block diagram showing the composition of another ingress network node in Embodiment 3 of the present invention.
  • FIG. 8 is a structural block diagram of a forwarding network node according to Embodiment 3 of the present invention.
  • FIG. 9 is a block diagram showing the composition of another forwarding network node in Embodiment 3 of the present invention.
  • FIG. 10 is a block diagram showing the composition of an egress network node in Embodiment 3 of the present invention.
  • FIG. 1 is a block diagram showing the composition of another egress network node in Embodiment 3 of the present invention.
  • Figure 12 is a block diagram showing the composition of a service transmission system in Embodiment 3 of the present invention. detailed description
  • the embodiment of the invention provides a method for transmitting service data, which is applied to a TRILL network. As shown in FIG. 1, the method includes:
  • the outer VLAN is a network topology identifier, and the outer VLAN for transmitting the service data is determined according to the data parameter corresponding to the service data, and may be implemented by using, but not limited to, the following methods, including:
  • mapping policy table corresponding to the service data type or the service data traffic and the outer VLAN is predefined.
  • the correspondence table generally includes two fields, which are a service data parameter field and a corresponding outer VLAN field.
  • the service data transmission diagram shown in FIG. 2 which is based on the preset outer VLAN and the mapping policy table corresponding to different service traffic, as shown in Table 1, includes service data traffic and corresponding outer VLANs.
  • the mapping policy table corresponding to the pre-configured outer VLAN and the service data type is similar to the policy mapping table corresponding to the preset outer VLAN and service data traffic, and includes the service data type and the The corresponding two fields of the outer VLAN are not described herein again in the embodiment of the present invention.
  • the destination alias is obtained according to the inner VLAN and the destination address of the service data.
  • the destination alias is the alias of the destination device.
  • the destination alias is the selected multicast distribution tree. Tree root alias.
  • the method for obtaining the destination alias of the service data according to the inner VLAN and the service data destination address, and acquiring the transmission path of the service data in the TRILL network according to the destination alias and the outer VLAN may be For:
  • the Layer 2 unicast forwarding table is queried according to the inner VLAN and the destination address of the service data, where the Layer 2 unicast forwarding table includes the network node in the TRILL network. Alias and inner VLAN network node address. If the destination address of the service data exists in the Layer 2 unicast forwarding table, obtain the destination node alias corresponding to the destination address as the destination alias, and then according to the outer VLAN and the destination alias. Query the unicast routing forwarding table to obtain the transmission path of the service data.
  • the destination address of the service data does not exist in the Layer 2 unicast forwarding table, querying the internal VLAN to query the mapping table between the inner VLAN and the TRILL multicast tree root alias to obtain the inner VLAN corresponding
  • the TRILL multicast distribution tree root alias is used as the destination alias, and the multicast routing forwarding table of the TRILL network is searched according to the outer VLAN and the destination alias, and the transmission path of the service data is obtained.
  • the Layer 2 multicast forwarding table is queried according to the inner VLAN and the destination address of the service data, where the Layer 2 multicast forwarding table includes the group. Broadcast address and multicast distribution tree root alias.
  • the TRILL network multicast distribution tree root alias is obtained as the destination alias, and the multicast routing forwarding table of the TRILL network is searched according to the outer VLAN and the destination alias, and the transmission path of the service data is obtained.
  • the table is a Layer 2 unicast forwarding table corresponding to the inner VLAN in FIG. 2, and the Layer 2 unicast forwarding table includes a network node alias and an inner VLAN in the TRILL network. Network node address.
  • the address item in the first column is queried according to the destination address of the service data, and then the corresponding destination alias is obtained in the alias item of the second column.
  • the alias of the network node corresponding to the destination address of the service data is determined as the destination alias according to the destination address;
  • the destination alias queries the route unicast forwarding table to obtain the transmission path of the service data in the TRILL network. If the destination address of the service data does not exist in the Layer 2 unicast forwarding table corresponding to the outer VLAN, query the mapping table between the inner VLAN and the TRILL multicast tree root alias to obtain the distribution tree root.
  • the alias is used as the destination alias, where the table contains only the inner VLAN and the corresponding distribution tree root alias. Then, the multicast routing forwarding table is queried according to the root name of the distribution tree to obtain the transmission path of the service data in the TRILL network.
  • routing forwarding table needs to be generated according to the network node corresponding to the destination address and the predetermined routing algorithm.
  • the specific generation method may refer to any routing method in the prior art. This is not limited, for example, the predetermined routing algorithm is a shortest path selection algorithm or the like.
  • the service data encapsulated by the TRILL encapsulation and the outer ETH is transmitted to the network node corresponding to the destination address of the service data by using the transmission path.
  • the network node corresponding to the destination address of the service data is transmitted to the network node corresponding to the destination address of the service data by using the transmission path, and the method includes: Obtaining the address of the next hop network node from the transmission path, and transmitting the service data encapsulated by the TRILL encapsulation and the outer ETH to the next hop network node according to the address of the next hop network node; after TRILL encapsulation and outer layer
  • the service data encapsulated by the ETH is transmitted to the network node corresponding to the destination address of the service data after performing the forwarding process one or more times.
  • the network node corresponding to the destination address decapsulates the TRILL-encapsulated and ETH-encapsulated service data, and obtains the service data, and sends the decapsulated service data to a corresponding user equipment.
  • the network node corresponding to the destination address finds that it is the last hop, that is, the current network node address is the same as the destination address. Decapsulating the service data that is encapsulated by the TRILL and the ETH to obtain the service data, and sending the decapsulated service data from the network node egress to the corresponding user equipment.
  • the entire network is divided into multiple virtual local area network topologies by using an outer VLAN in the TRILL network, and each virtual local area network corresponds to a unicast forwarding table and a multicast forwarding table, and will enter
  • the data in the TRILL network corresponds to different service data types or different service data flows to different virtual local area networks, so that all service data entering the TRILL network need to query the same forwarding table, which reduces different service data types or different types.
  • the overlapping of service data traffic transmission paths effectively alleviates the problem that some transmission links in the network are over-loaded, and some transmission links are too light, which makes the load of the network transmission links balanced, saves network resources, and increases the network. Utilization.
  • the embodiment of the present invention provides a method for transmitting service data, which is applied to a TRILL network. As shown in FIG. 3, the method includes:
  • Group network nodes that belong to the same outer VLAN, and establish a communication link between adjacent network nodes in the group, and according to a predetermined routing algorithm and the neighboring
  • the communication link established between the network nodes generates a corresponding unicast routing forwarding table and a multicast routing forwarding table.
  • the implementation body of step 201 and step 202 may be each network node in the TRILL network, including an ingress network node, a forwarding network node, and an egress network node.
  • a unicast routing forwarding table and a multicast routing forwarding table are generated for each network node.
  • the unicast routing and forwarding table includes a destination alias, a next hop MAC address, and an egress port, so that step 204 queries the unicast routing forwarding table according to the outer VLAN and the destination alias when acquiring the transmission path of the service data.
  • the other name of the first column is queried according to the destination alias, and then the corresponding transmission path, that is, the next hop MAC address and the outgoing port are obtained.
  • the network node that selects the largest address in the current VLAN is the root of the distribution tree, and the distribution tree is calculated and planned according to the shortest path algorithm by the distribution tree root to ensure the distribution tree. No loop links are generated.
  • One of the distribution tree root aliases can correspond to multiple next hop MAC addresses and egress ports, query the alias entries of the first column according to the distribution tree root alias, and then obtain the corresponding transmission path, that is, the next hop MAC address and the egress port.
  • the device that receives the service data sent by the user terminal, and determines the VLAN for transmitting the service data according to the data parameter corresponding to the service data may be an ingress network node.
  • ingress network node For specific step description, refer to the corresponding description in step 101 of Embodiment 1. The embodiments of the present invention will not be described herein.
  • the device for obtaining the transmission path of the service data in the TRILL network may be an ingress network node or a forwarding network node.
  • the specific method is described in detail in step 102 of Embodiment 1, and details are not described herein again.
  • the TRILL encapsulation includes encapsulating the service data with an ingress node alias and an egress node alias to determine an ingress node and an egress node of the service data.
  • the outer ETH encapsulation includes an outer VLAN identifier to map the service data to the outer VLAN, and further includes a hop-by-hop behavior PHB for determining different transmission paths for transmitting different types of service data, that is, each data forwarding is performed. Jump address.
  • the device for performing TRILL encapsulation and outer ETH encapsulation of the service data may be an ingress network node.
  • the transmission path of the service data includes: a destination alias, a next hop network address, and an outbound port of the service data.
  • the next hop network node address is obtained from the transmission path, so that the service data is sent from the egress port to the corresponding network device through the next hop network address.
  • the process of the TRILL encapsulation and the outer ETH encapsulation in the service data transmission process may be: the ingress network node performs the TRILL encapsulation and the outer ETH encapsulation of the service data, and sends the packet to the next hop network node; the forwarding network node receives the After the TRILL encapsulation and the outer ETH encapsulation service data, the outer ETH is decapsulated and the information contained in the outer ETH encapsulation is read, and the next hop network node is determined, and the outer ETH encapsulation is performed again, and sent to the next The network node is hopped; the egress network node decapsulates the service data encapsulated by the TRILL encapsulation and the ETH to obtain the service data.
  • the network node corresponding to the destination address decapsulates the TRILL-encapsulated and ETH-encapsulated service data, and obtains the service data, and sends the decapsulated service data to a corresponding user equipment.
  • the network node corresponding to the destination address finds that the current network node address is the same as the destination address, that is, the current network node is an egress network node.
  • the egress network node decapsulates the TRILL-encapsulated and ETH-encapsulated service data to obtain the service data, and sends the decapsulated service data from the network node egress to the corresponding user equipment.
  • the entire network is divided into multiple virtual local area network topologies by using an outer VLAN in the TRILL network, and each virtual local area network corresponds to a unicast forwarding table and a multicast forwarding table, and will enter
  • the data in the TRILL network corresponds to different service data types or different service data flows to different virtual local area networks, so that all service data entering the TRILL network need to query the same forwarding table, which reduces different service data types or different types.
  • the overlapping of service data traffic transmission paths effectively alleviates the problem that the transmission links of some transmission links in the network are too heavy, and some transmission links are too light, which makes the load of the network transmission links Balanced, saving network resources and increasing network utilization.
  • An embodiment of the present invention provides an ingress network node, which is applied to a TRILL network.
  • the ingress network node includes: a receiving unit 31, a determining unit 32, an obtaining unit 33, a mapping unit 34, and a sending unit 35.
  • the receiving unit 31 is configured to receive service data sent by the user terminal.
  • the determining unit 32 is configured to determine, according to the data parameter corresponding to the service data, an outer virtual local area network VLAN that transmits the service data.
  • the data parameter may be a traffic data type or a traffic of service data.
  • the determining, according to the data parameter corresponding to the service data received by the receiving unit 31, the outer virtual local area network (VLAN) that transmits the service data may be: generating according to the preset outer VLAN and the service data type of the service data. Mapping the policy table, or generating a mapping policy table according to the preset outer VLAN and the service data traffic of the service data set, and determining, by querying the mapping policy table, the outer virtual local area network VLAN that transmits the service data.
  • the obtaining unit 33 is configured to obtain the destination alias of the service data according to the inner VLAN and the service data destination address, and obtain the transmission path of the service data in the TRILL network according to the destination alias and the outer VLAN. .
  • the mapping unit 34 is configured to perform the multi-link transparent interconnection TRILL encapsulation and the outer Ethernet ETH encapsulation on the service data, so as to map service data into the outer VLAN.
  • the hop-by-hop behavior PHB of the different transmission paths that determine the transmission of different types of service data, and the next hop address for each data forwarding, are determined to determine the ingress and egress nodes of the traffic data.
  • the sending unit 35 is configured to transmit the service data encapsulated by the TRILL encapsulation and the outer ETH to the forwarding node by using the transmission path, so that the forwarding node transmits the service data encapsulated by the TRILL encapsulation and the outer ETH to the corresponding egress. Network node.
  • the ingress network node further includes: a setting unit 36, a grouping unit 37, a link establishing unit 38, and a generating unit 39.
  • the setting unit 36 is configured to: before the determining unit 32 determines, according to the data parameter corresponding to the service data, the ingress network node of the TRILL network interconnection before transmitting the outer VLAN of the service data. On the port, set the outer layer corresponding to different types of service data according to the data parameters of the service data.
  • the data parameter is a traffic data type or a traffic of service data.
  • a grouping unit 37 is configured to group network nodes belonging to the same outer VLAN.
  • the link establishing unit 38 is configured to establish a communication link between adjacent network nodes in the group. Specifically, the neighboring network nodes send the identifier corresponding to the set outer VLAN to the other network nodes that are in communication connection with the network node by sending a HELLO message, and establish a connection between the network nodes. link.
  • the generating unit 39 is configured to generate a corresponding outer VLAN unicast routing forwarding table and multicast routing forwarding according to a predetermined routing algorithm and a communication link established between the adjacent network nodes.
  • the obtaining unit 33 includes: a first query module 331, a first obtaining module 332, and/or a second query module 333, and a second obtaining module 334.
  • the first query module 331 is configured to query a Layer 2 unicast forwarding table according to the inner VLAN and the destination address of the service data, where the Layer 2 unicast forwarding table includes a network node alias and an inner VLAN network in the TRILL network. Node address.
  • the first obtaining module 332 is configured to: when the destination address of the service data exists in the layer 2 unicast forwarding table, obtain the destination node alias corresponding to the destination address as the destination alias, and then according to the outer layer The VLAN and the destination alias query the unicast routing forwarding table, and obtain the transmission path of the service data.
  • the first obtaining module 332 is further configured to: when the destination address of the service data does not exist in the Layer 2 unicast forwarding table, query the inner VLAN and the TRILL multicast according to the inner VLAN The distribution tree root alias correspondence table is obtained, and the TRILL multicast distribution tree root alias corresponding to the inner VLAN is obtained as the destination alias, and the multicast routing forwarding table of the TRILL network is searched according to the outer VLAN and the destination alias. The transmission path of the service data.
  • the second query module 333 is configured to query the Layer 2 multicast forwarding table according to the inner VLAN and the destination address of the service data, where the Layer 2 multicast forwarding table includes a multicast address and a multicast distribution tree root alias.
  • the second obtaining module 334 is configured to obtain a TRILL network multicast distribution tree root alias as the destination alias, and find a multicast routing forwarding table of the TRILL network according to the outer VLAN and the destination alias, and obtain the service data. Transmission path.
  • the sending unit 35 includes: an address obtaining module 351 and a sending module 352.
  • the address obtaining module 351 is configured to obtain, from the transmission path, an address sending module 352 of the next hop network node, where the service data encapsulated by the TRILL encapsulation and the outer ETH is transmitted according to the address of the next hop network node.
  • the next hop network node corresponding to the address.
  • the embodiment of the present invention provides a forwarding network node, which is applied to a TRILL network.
  • the forwarding network node includes: a receiving unit 41, a parsing unit 42, a query unit 43, a packaging unit 44, and a sending unit 45.
  • the receiving unit 41 is configured to receive service data that is sent by the upstream network node and encapsulated by the multi-link transparent interconnect TRILL encapsulation and the outer Ethernet ETH.
  • the parsing unit 42 is configured to parse the service data encapsulated by the TRILL encapsulation and the outer ETH to obtain the TRILL encapsulated service data.
  • the query unit 43 is configured to obtain, from the service data transmission path, an address of the next hop network node that transmits the service data.
  • the encapsulating unit 44 is configured to perform the TRILL encapsulated service data according to the outer virtual local area network (VLAN) corresponding to the service data, the address of the service data next hop network node, and the service data egress network node. According to the outer ETH package.
  • VLAN virtual local area network
  • the sending unit 45 is configured to send the TRILL encapsulated and the ETH encapsulated service data to the next hop network node according to the address of the next hop network node.
  • the network forwarding node further includes: a setting unit 46, a grouping unit 47, a link establishing unit 48, and a generating unit 49.
  • the setting unit 46 is configured to set, on the port of the forwarding network node, an outer VLAN corresponding to different types of service data according to data parameters of the service data.
  • a grouping unit 47 is configured to group network nodes belonging to the same outer VLAN.
  • the link establishing unit 48 is configured to establish a communication link between adjacent network nodes in the group.
  • the generating unit 49 is configured to generate a corresponding unicast routing forwarding table and a multicast routing forwarding table according to a predetermined routing algorithm and a communication link established between the adjacent network nodes.
  • An embodiment of the present invention provides an egress network node, which is applied to a TRILL network.
  • the node includes: a receiving unit 51, a first parsing unit 52, a query unit 53, a second parsing unit 54, and a sending unit 55. .
  • the receiving unit 51 is configured to receive service data that is sent by the upstream node and encapsulated by the multi-link transparent interconnect TRILL and the outer Ethernet ETH.
  • the first parsing unit 52 is configured to parse the service data encapsulated by the TRILL encapsulation and the outer ETH to obtain the TRILL encapsulated service data.
  • the query unit 53 is configured to obtain, from the service data transmission path, an address of the next hop network node that transmits the service data.
  • the second parsing unit 54 is configured to: when the querying unit determines that the egress network node is the last hop network node that transmits the service data, parse the TRILL encapsulated service data to obtain service data.
  • the sending unit 55 is configured to send the service data to a corresponding user equipment.
  • the egress network node further includes: a setting unit 56, a grouping unit 57, a link establishing unit 58, and a generating unit 59.
  • the setting unit 56 is configured to set, on the port of the egress network node, an outer VLAN corresponding to different types of service data according to the data parameter of the service data.
  • the grouping unit 57 is configured to group network nodes belonging to the same outer VLAN.
  • the link establishing unit 58 is configured to establish a communication link between adjacent network nodes in the group.
  • the generating unit 59 is configured to generate a corresponding unicast routing forwarding table and a multicast routing forwarding table according to a predetermined routing algorithm and a communication link established between the adjacent network nodes.
  • the embodiment of the present invention provides a service data transmission system, which is applied to a TRILL network.
  • the system includes: an ingress network node 61, a forwarding network node 62, and an egress network node 63.
  • the ingress network node 61 is configured to receive service data sent by the user terminal, and determine, according to the data parameter corresponding to the service data, an outer virtual local area network VLAN that transmits the service data; according to the inner layer VLAN and the service data destination address Obtaining a destination alias of the service data, and acquiring, according to the destination alias and the outer VLAN, a transmission path of the service data in a TRILL network; performing the multi-link transparent interconnection TRILL encapsulation and outer layer on the service data.
  • the Ethernet ETH is encapsulated to map the service data to the outer VLAN; the service data encapsulated by the TRILL encapsulation and the outer ETH is transmitted to the forwarding node by the transmission path, so that the forwarding node will pass the TRILL
  • the service data of the encapsulation and outer ETH encapsulation is transmitted to the corresponding egress network node;
  • the forwarding network node 62 is configured to receive service data that is sent by the upstream network node and is encapsulated by the multi-link transparent interconnect TRILL encapsulation and the outer Ethernet ETH; and parse the service data that is encapsulated by the TRILL encapsulation and the outer ETH encapsulation Obtaining the TRILL-encapsulated service data; obtaining, from the service data transmission path, an address of the next hop network node that transmits the service data; and the outer virtual local area network VLAN corresponding to the service data, the service data next The address of the hop network node and the service data egress network node perform outer ETH encapsulation on the TRILL encapsulated service data; according to the address of the next hop network node, the TRILL encapsulation and The service data encapsulated by the ETH is sent to the next hop network node.
  • the egress network node 63 is configured to receive the multi-link transparent interconnection sent by the upstream node. Traffic data of the TRILL encapsulation and the outer Ethernet ETH encapsulation; parsing the service data encapsulated by the TRILL encapsulation and the outer ETH encapsulation to obtain the TRILL encapsulated service data; and obtaining the transmission from the service data transmission path.
  • the service data next hop network node address; determining that the egress network node is the last hop network node that transmits the service data, parsing the TRILL encapsulated service data to obtain service data; Send to the corresponding user device.
  • the entire network is divided into multiple virtual local area network topologies by using an outer VLAN in the TRILL network, and each virtual local area network corresponds to a unicast forwarding table and a multicast forwarding table, and will enter
  • the data in the TRILL network corresponds to different service data types or different service data flows to different virtual local area networks, so that all service data entering the TRILL network need to query the same forwarding table, which reduces different service data types or different types.
  • the overlapping of service data traffic transmission paths effectively alleviates the problem that some transmission links in the network are over-loaded, and some transmission links are too light, which makes the load of the network transmission links balanced, saves network resources, and increases the network. Utilization.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation.
  • the computer software product of the present invention is stored in a readable storage medium, such as a floppy disk, a hard disk or an optical disk of a computer, and includes a plurality of instructions for causing a computer device (which may be an individual) A computer, server, or network device, etc., performs the methods described in various embodiments of the present invention.

Abstract

L'invention concerne un procédé de transmission de données de service, un nœud de réseau et un système, qui s'appliquent à un réseau d'interconnexion transparente d'un grand nombre de liaisons (Transparent Interconnection of Lots of Link, TRILL), qui se rapportent au domaine des communications, et qui sont capables de diviser différentes topologies de réseau en fonction du type du service qui est porté, améliorant ainsi le taux d'utilisation de la bande passante de la liaison. Le procédé selon les modes de réalisation de la présente invention consiste : à consulter une table de stratégies d'application en fonction du type de transmission de données, et à acquérir un réseau local virtuel (VLAN) de la couche externe correspondant ; à acquérir l'alias de destination des données de service selon un VLAN de la couche interne et une adresse de destination des données de service, et à acquérir le chemin de transmission des données de service au sein du réseau TRILL conformément audit alias de destination et audit VLAN de la couche externe ; à réaliser une encapsulation TRILL et une encapsulation ETH de la couche externe sur les données de service, puis à les transmettre au nœud de destination des données de service par le biais dudit chemin de transmission ; et à réaliser la désencapsulation grâce au nœud de destination pour obtenir les données de service et les envoyer à un équipement utilisateur correspondant. Les modes de réalisation de la présente invention sont principalement utilisés lors du processus de transmission de données de service.
PCT/CN2012/080395 2011-08-23 2012-08-21 Procédé de transmission de données de service, nœud de réseau et système WO2013026384A1 (fr)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103812749A (zh) * 2014-01-24 2014-05-21 杭州华三通信技术有限公司 一种数据中心站点间vlan映射的方法和装置
CN110351772A (zh) * 2018-04-08 2019-10-18 慧与发展有限责任合伙企业 无线链路和虚拟局域网之间的映射

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103501274B (zh) * 2013-09-24 2017-09-12 神州数码网络(北京)有限公司 一种多链接透明互联网络中流量负载分担方法及装置
WO2015081542A1 (fr) * 2013-12-05 2015-06-11 北京东土科技股份有限公司 Procédé et système de mise en œuvre de configuration basée sur un service de réseau
CN104702506B (zh) * 2013-12-09 2018-10-19 华为技术有限公司 一种报文传输方法、网络节点及报文传输系统
CN104811386B (zh) * 2014-01-29 2018-03-16 华为技术有限公司 报文转发方法、设备及系统
CN104811377B (zh) * 2014-01-29 2018-09-07 华为技术有限公司 生成媒体接入控制表的方法及网络设备
CN105490957B (zh) * 2014-10-11 2019-05-03 华为技术有限公司 一种负载分担方法及装置
CN105577416B (zh) * 2014-10-17 2020-03-10 中兴通讯股份有限公司 一种业务功能链操作、管理和维护方法及节点设备
CN107370672A (zh) * 2016-05-11 2017-11-21 华为技术有限公司 路径选择的方法及装置
CN108769285B (zh) * 2018-05-24 2021-01-05 西安电子科技大学 时间触发以太网业务的分层编址方法
CN113014648B (zh) * 2021-02-25 2022-04-29 北京邮电大学 小节点群动态转发混合路由方法及相关设备
CN114222209A (zh) * 2022-02-21 2022-03-22 北京国科天迅科技有限公司 混合协议交换网络路由实现方法、装置及网络交换设备
CN117478707B (zh) * 2023-12-27 2024-05-07 天津数智物联科技有限公司 一种多目标能源管理数据传输方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1773949A (zh) * 2005-10-28 2006-05-17 杭州华为三康技术有限公司 虚拟专网的接入方法及实现装置
CN101064720A (zh) * 2006-04-28 2007-10-31 华为技术有限公司 提高基站接入业务流的方法
CN101110764A (zh) * 2007-08-13 2008-01-23 中兴通讯股份有限公司 一种以太网交换机数据帧划分虚拟局域网并转发的方法
US20110134802A1 (en) * 2009-12-09 2011-06-09 Cisco Technology, Inc. Determining A Routing Tree For Networks With Different Routing Protocols

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100442779C (zh) * 2006-02-10 2008-12-10 华为技术有限公司 一种以太网中的控制系统和数据报文传输方法
CN101257452B (zh) * 2008-04-16 2010-12-08 中兴通讯股份有限公司 一种以太无源光网络接入设备发送下行数据报文的方法
US7787480B1 (en) * 2009-03-04 2010-08-31 Juniper Networks, Inc. Routing frames in a trill network using service VLAN identifiers
CN102075438B (zh) * 2011-02-14 2016-03-30 中兴通讯股份有限公司 单播数据帧传输方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1773949A (zh) * 2005-10-28 2006-05-17 杭州华为三康技术有限公司 虚拟专网的接入方法及实现装置
CN101064720A (zh) * 2006-04-28 2007-10-31 华为技术有限公司 提高基站接入业务流的方法
CN101110764A (zh) * 2007-08-13 2008-01-23 中兴通讯股份有限公司 一种以太网交换机数据帧划分虚拟局域网并转发的方法
US20110134802A1 (en) * 2009-12-09 2011-06-09 Cisco Technology, Inc. Determining A Routing Tree For Networks With Different Routing Protocols

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103812749A (zh) * 2014-01-24 2014-05-21 杭州华三通信技术有限公司 一种数据中心站点间vlan映射的方法和装置
CN103812749B (zh) * 2014-01-24 2017-11-14 新华三技术有限公司 一种数据中心站点间vlan映射的方法和装置
CN110351772A (zh) * 2018-04-08 2019-10-18 慧与发展有限责任合伙企业 无线链路和虚拟局域网之间的映射
CN110351772B (zh) * 2018-04-08 2022-10-25 慧与发展有限责任合伙企业 无线链路和虚拟局域网之间的映射
US11546222B2 (en) 2018-04-08 2023-01-03 Hewlett Packard Enterprise Development Lp Mapping between wireless links and virtual local area networks

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