CN105577502A - Service transport method and device - Google Patents
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Abstract
The invention discloses a service transport method and device. The method comprises that a first node generates a route forwarding table to reach other nodes according to the topology structural of the whole network, and a tunnel forwarding table is established according to addresses of target nodes in the route forwarding table and corresponding tunnel ID; and according to the tunnel ID in a service message and the tunnel forwarding table, the first node carries out service transport. According to the invention, the problem that a lot of manual configuration is needed in the IP RAN network service channel in the related arm is solved, a plug-and-play function of a device is realized, great convenience is provided for establishment of service channels of the IP RAN network, and the labor and time cost due to manual configuration is reduced.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a service delivery method and apparatus.
Background
In the configuration and establishment of a current radio access network (IP ran) network service channel, the address of each port on a node is mainly configured or set in a manual or network management manner, an Internal Gateway Protocol (IGP) is started on each node to perform network topology learning, an optimal path is calculated according to a routing algorithm, and a service channel is established by a signaling protocol such as a Label Distribution Protocol (LDP); or a service channel is statically configured between each access node and a sink node on the IPRAN network in a manual or network management mode; with the expansion of network scale, especially an ip ran network, there are a large number of access nodes, and if port address configuration and service channel configuration in a dynamic or static manner are performed manually, a large amount of configuration and management work is brought. Currently, a plug and play method is needed to automatically establish and configure an ip ran network service channel on an ethernet unnumbered interface.
Aiming at the problem that a large amount of manual configuration is needed in an IPRAN network service channel in the related art, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a service transmission method and a service transmission device, which at least solve the problem that a large amount of manual configuration is needed in an IPRAN network service channel in the related art.
According to an embodiment of the present invention, there is provided a service transmission method, including: the first node generates a route forwarding table reaching other nodes according to the whole network topological structure, and establishes a tunnel forwarding table according to a destination node address in the route forwarding table and a tunnel identification ID corresponding to the node; and the first node transmits the service according to the tunnel ID on the service message and the tunnel forwarding table.
In this embodiment, before the first node establishes the tunnel forwarding table according to the destination node address in the route forwarding table and the tunnel ID corresponding to the node, the method further includes: the first node acquires the tunnel ID of the other node and the unique identification of the other node; and the first node generates a corresponding relation table of the unique identifier of each other node and the tunnel ID corresponding to the node, wherein the unique identifiers of the other nodes are used for searching the destination node addresses corresponding to the other nodes in the routing forwarding table.
In this embodiment, the acquiring, by the first node, the tunnel IDs of the other nodes includes: the first node receives the tunnel ID of the other nodes and the unique identification of the other nodes, which are advertised by the other nodes through an Interior Gateway Protocol (IGP) multicast message; and/or the first node issues LSA through the routing update of IGP protocol to learn the tunnel ID of all nodes on the network and the unique identification of other nodes.
In this embodiment, the acquiring, by the first node, the tunnel IDs of the other nodes includes: the first node receives the tunnel ID of the other nodes and the unique identification of the other nodes, which are advertised by the other nodes in the TLV message format; and/or the first node issues LSA to learn the tunnel ID of all nodes on the network and the unique identification of other nodes through route updating of IGP protocol in TLV message format.
In this embodiment, the unique identifier includes at least one of: and managing a loopback IP address and a route RouterID.
In this embodiment, before the first node acquires the tunnel ID of the other node, the method further includes: after each node gets through a DCN channel of a network management data communication network, a network management system NMS issues the tunnel ID to each node through the DCN channel; or the controller sends the tunnel ID to each node on the network through a control connection channel.
In this embodiment, the generating, by the first node, a routing forwarding table to reach other nodes according to the entire network topology includes: and the first node calculates the optimal path to the other nodes according to the topological structure of the whole network, and generates a routing forwarding table to the other nodes according to the optimal path.
In this embodiment, the tunnel ID includes at least one of: multiprotocol label switching MPLS labels, virtual local area networks VLAN.
According to another embodiment of the present invention, there is provided a traffic transmitting apparatus, located at a first node, including: the channel establishing module is used for generating a route forwarding table reaching other nodes according to the whole network topological structure and establishing a tunnel forwarding table according to a destination node address in the route forwarding table and a tunnel identification ID corresponding to the node; and the service transmission module is used for transmitting the service according to the tunnel ID on the service message and the tunnel forwarding table.
In this embodiment, the apparatus further includes: the acquisition module is used for acquiring the tunnel ID of the other node and the unique identifier of the other node; and a generating module, configured to generate a correspondence table between the unique identifier of each of the other nodes and the tunnel ID corresponding to the node, where the unique identifier of the other node is used to search, in the routing forwarding table, a destination node address corresponding to the other node.
In this embodiment, the obtaining module is configured to: receiving tunnel IDs of other nodes and unique identifications of the other nodes, which are advertised by the other nodes through an Interior Gateway Protocol (IGP) multicast message; and/or, issuing the LSA via a route update of the IGP protocol learns the tunnel IDs to all nodes on the network and the unique identities of the other nodes.
In this embodiment, the unique identifier includes at least one of: and managing a loopback IP address and a route RouterID.
In this embodiment, the channel establishing module is configured to: and calculating the optimal path reaching the other nodes according to the topological structure of the whole network, and generating a routing forwarding table reaching the other nodes according to the optimal path.
In this embodiment, the tunnel ID includes at least one of: multiprotocol label switching MPLS labels, virtual local area networks VLAN.
According to the invention, a first node is adopted to generate a route forwarding table reaching other nodes according to the whole network topological structure, and a tunnel forwarding table is established according to a destination node address in the route forwarding table and a tunnel ID corresponding to the node; the first node carries out service transmission according to the tunnel ID on the service message and the tunnel forwarding table, solves the problem that a large amount of manual configuration is needed in the service channel of the IPRAN network in the related technology, realizes the plug-and-play function of equipment, greatly facilitates the establishment of the service channel of the IPRAN network, and saves labor and time cost brought by manual configuration.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a flow chart of a method of traffic delivery according to an embodiment of the invention;
fig. 2 is a block diagram of a structure of a traffic transmitting apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of system module relationships in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of automatic establishment of a forwarding path for adding nodes labels according to a preferred embodiment of the present invention;
fig. 5 is a diagram illustrating TLV encapsulation format of network element information according to the preferred embodiment of the present invention;
fig. 6 is a schematic diagram of an IGPP2P flooding multicast message format according to the preferred embodiment of the present invention;
fig. 7 is a schematic diagram of automatic establishment of a delete node label forwarding channel according to a preferred embodiment of the present invention;
fig. 8 is a schematic diagram of a node forwarding label assignment process in accordance with a preferred embodiment of the present invention;
fig. 9 is a schematic diagram of an IPRAN zero configuration plug and play flow according to a preferred embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In this embodiment, a service delivery method is provided, fig. 1 is a flowchart of a service delivery method according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step S102, a first node generates a route forwarding table reaching other nodes according to the whole network topological structure, and establishes a tunnel forwarding table according to a destination node address in the route forwarding table and a tunnel ID corresponding to the node;
and step S104, the first node transmits the service according to the tunnel ID on the service message and the tunnel forwarding table.
Through the steps, any node (i.e. the first node) in the network generates a route forwarding table to other nodes according to the whole network topology, and establishes a tunnel forwarding table according to the destination node address in the route forwarding table and the tunnel ID corresponding to the node, then, in the process of processing the service, the service is transmitted according to the tunnel ID on the service message and the tunnel forwarding table, so that only the tunnel ID of other nodes on the service message is required to be acquired, the routing forwarding towards the node can be realized, the manual configuration or setting of each port address of the node is not needed, the problem that a large amount of manual configuration is needed in an IPRAN network service channel in the related technology is solved, the plug and play function of equipment is realized, the service channel establishment of the IPRAN network is greatly facilitated, and the labor cost and the time cost brought by the manual configuration are saved.
In this embodiment, before a first node establishes tunnel forwarding according to a destination node address in the route forwarding table and a tunnel ID corresponding to the node, the first node first obtains tunnel IDs of the other nodes and unique identifiers of the other nodes, and further generates a correspondence table between the unique identifiers of the other nodes and the tunnel ID corresponding to the node, where the unique identifiers of the other nodes are used to search for the destination node addresses corresponding to the other nodes in the route forwarding table.
The unique identifier described in this embodiment may include at least one of the following: managing a loopback IP address, route (Router) ID.
The first node may acquire the tunnel ID of the other node and the unique identifier of the other node in the following two ways:
for the adjacent node, the first node may receive the tunnel ID of the other node and the unique identifier of the other node, which are advertised by the other node through the IGP multicast packet; and/or, for all nodes in the network, the first node may learn, through a route update advertisement (LSA for short) of the IGP protocol, tunnel IDs of all nodes on the network and unique identifications of the other nodes.
The first node may receive a management loopback IP address of the other node and a unique identifier (tunnel ID and route identifier (RouterID)) of the other node, which are advertised by the other node in a TLV (Type, Length, Value, Type Length Value) packet format by the neighboring other node; and/or the first node issues LSA to learn the tunnel ID of all nodes on the network and the unique identification (tunnel ID and RouterID) of other nodes through routing update of an IGP protocol in a TLV message format.
In this embodiment, before the first node acquires the tunnel IDs of the other nodes, each node itself may acquire the tunnel IDs in the following two tunnel ID acquisition manners:
in the first mode, after a node opens a Data Communication Network (DCN) channel, a Network Management System (NMS) issues the tunnel ID to each node through the DCN channel; or,
and in the second mode, the controller issues the tunnel ID to each node on the network through a control connection channel.
In this embodiment, the first node may generate a routing forwarding table reaching other nodes according to the entire network topology as follows: and the first node calculates the optimal path to the other nodes according to the topological structure of the whole network, and generates a routing forwarding table to the other nodes according to the optimal path.
In this embodiment, the tunnel ID may include, but is not limited to, at least one of the following: a Multi Protocol Label Switching (MPLS) label, a Virtual Local Area Network (VLAN) label, and the like.
Corresponding to the above method, in this embodiment, a service delivery apparatus is further provided, which is located at the first node, and is used to implement the foregoing embodiment and the preferred embodiment, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 2 is a block diagram of a service delivery apparatus according to an embodiment of the present invention, and as shown in fig. 2, the apparatus includes a channel establishing module 22 and a service delivery module 24, and the following describes each module in detail:
the channel establishing module 22 is configured to generate a route forwarding table reaching other nodes according to the entire network topology, and establish a tunnel forwarding table according to a destination node address in the route forwarding table and a tunnel identifier ID corresponding to the node; and the service transmission module 24 is connected to the channel establishing module 22, and is configured to perform service transmission according to the tunnel ID in the service packet and the tunnel forwarding table.
In this embodiment, the apparatus may further include: the acquisition module is used for acquiring the tunnel ID of the other node and the unique identifier of the other node; and a generating module, connected to the obtaining module and the channel establishing module 22, configured to generate a correspondence table between the unique identifier of each other node and the tunnel ID corresponding to the node, where the unique identifier of the other node is used to search, in the route forwarding table, a destination node address corresponding to the other node.
In this embodiment, the obtaining module may be specifically configured to: receiving tunnel IDs of other nodes and unique identifications of the other nodes, which are advertised by the other nodes through an Interior Gateway Protocol (IGP) multicast message; and/or, issuing the LSA via a route update of the IGP protocol learns the tunnel IDs to all nodes on the network and the unique identities of the other nodes.
The channel establishing module 22 may be specifically configured to calculate an optimal path to the other nodes according to the topology structure of the entire network, and generate a routing forwarding table to the other nodes according to the optimal path.
In this embodiment, the tunnel ID may include, but is not limited to, at least one of the following: MPLS label, VLAN, etc.
The following description is given in conjunction with the preferred embodiments, which combine the above embodiments and their preferred embodiments.
In the following preferred embodiments, a method and an apparatus for automatic configuration based on an ip ran service channel are provided, which can implement a plug and play function in an ip ran scenario, and in particular, for a current ip ran network, which has many access nodes and needs a lot of configuration and management, for example: the method is a method for realizing automatic configuration and establishment of the service channel on the unnumbered interface of the Ethernet, and is convenient for the automatic configuration and establishment of the service channel of the unnumbered network of the IPRAN.
The system of the preferred embodiment mainly includes the following three modules, fig. 3 is a schematic diagram of the relationship of the system modules according to the preferred embodiment of the present invention, and as shown in fig. 3, the above modules are explained in detail as follows:
an announcement module: the module mainly announces the RouterID, the management loopback IP address, the tunnel ID allocated to the node and other information to the adjacent nodes through a network management DCN channel in a non-transparent mode in an IGP multicast mode;
a learning module: after receiving IGP multicast messages sent by other nodes, the node can learn information such as RouterID, management IP address and tunnel ID (such as MPLS Label) allocated to the adjacent node on one hand, and can learn information such as RouterID, management IP address and allocated tunnel ID of non-adjacent nodes on the network and topology information of the whole network route on the other hand to form routing table information of the node;
a building module: the module mainly calculates an optimal path from the node to each other destination node according to the learned routing table information which can reach other nodes and related routing strategies and algorithms, and establishes a local routing forwarding table from the node to each destination node; because the route forwarding table of the destination node is in one-to-one correspondence with the tunnel forwarding tables from the node to the destination node, a service channel with the tunnel ID as a matching item is automatically generated on the node;
fig. 4 is a schematic diagram of automatic establishment of a forwarding path with added node labels according to a preferred embodiment of the present invention, and a main process of a method for implementing automatic establishment of a zero configuration service path in an IPRAN unnumbered interface network of the preferred embodiment is shown in fig. 4; the scheme mainly comprises the following characteristics or processes:
firstly, each node configures or automatically generates information such as RouterID, a management Loopback (Loopback) address and the like on the node and stores the information on the node; and when each node is used as a destination node, unique tunnel ID information is allocated, such as: MPLS labels, VLANs, etc. identifiers, may be assigned in two ways: after each node is opened through a DCN channel, a Network Management System (NMS) issues a tunnel ID to each node through the DCN channel; the other is connected with the channel through the control by the controller, such as: a Transmission Control Protocol (TCP) or a transport layer security protocol (TLS) connection channel, which issues a unique tunnel ID to each node on the network;
secondly, each node starts an IGP protocol process, and by extending an IGP (for example, an inter-system routing protocol (ISIS) -inter-system routing protocol, development shortest path first (OSPF), etc.), the network element parameter information of the node, for example, is: RouterID, management loopback IP address and information such as tunnel ID (e.g. MPSLLabel) allocated by the node, in TLV manner, fig. 5 is a schematic diagram of TLV encapsulation format of network element information according to the preferred embodiment of the present invention, fig. 6 is a schematic diagram of IGPP2P flooding multicast message format according to the preferred embodiment of the present invention, as shown in fig. 5 and 6, encapsulated into IGP protocol message, and then sent to all its neighboring nodes through DCN channel in IGP multicast manner (e.g. 224.0.0.5), and its multicast frame format is shown in fig. 5;
then, after the node on the network receives the IGP multicast message sent by the adjacent node, on one hand, according to the RouterID carried in the message, the information such as the RouterID, the management loopback IP address, the tunnel ID and the like of the adjacent node can be learned; on the other hand, according to IGP protocol route update release (LSA), route information (such as hop count, COST (COST), reachable information and the like) of other nodes on the network, routeriD of all nodes on the network, management IP address, specifically-allocated tunnel ID and the like can be learned;
finally, each node can calculate an optimal forwarding path from the node to each other node according to the learned routing information table of other nodes. Because the tunnel ID allocated by each node is unique, the corresponding tunnel forwarding path is consistent with the route forwarding path to the node, tunnel forwarding tables to other nodes on the network are automatically generated on the node, and a tunnel forwarding channel is automatically established; the label forwarding tunnel is not required to be established through signaling protocols such as LDP, resource reservation protocol (RSVP for short), and the like.
Compared with the prior art, the method and the device of the preferred embodiment do not need to configure the equipment on the network, realize the automatic opening and establishment of the service channel on the unnumbered interface of the Ethernet and realize the plug and play function of the equipment;
example one
The present embodiment takes a node insertion situation as an example for detailed description, and takes a network structure shown in fig. 4 as an example to briefly describe how to implement creation and opening of a label forwarding channel by expanding an OSPF protocol when a new device accesses a network, so as to implement a plug and play function of the device:
s2, in the Ethernet unnumbered interface network, when an A1 access node just joins the IPRAN network as shown in figure 4, the A1 node will automatically form a management loop-back IP address according to the information such as RouterID, bridging MAC and system serial number configured by the default of the original equipment, start the OSPF protocol process of the node by default, and set the port types of DCNVRF (4094) and Point-to-Point (PointToPoint, abbreviated as P2P); the unique tunnel information distributed by the node can be distributed through automatic distribution of network management DCN channels or a controller;
s4, starting an OSPF protocol by the node A1, automatically creating DCNVRF and setting a port P2P type, on one hand, encapsulating information TLV modes such as RouterID, management IP address and label of the node A1 into an OSPF multicast (224.0.0.5) message, and sending the OSPF multicast message to nodes A2 and A4 adjacent to the node A1 through a DCNVRF (4094) channel;
s6, after the A2 and A4 nodes receive the OSPF multicast message sent by the DCN channel of the A1 node, the information such as RouterID, management IP and label of the A1 node can be learned, the routing information of the A1 node is stored, the newly learned information of the A1 node is notified to other adjacent nodes A3 and A5 of the A2 and A4 through the OSPF multicast mode; meanwhile, the A2 and A4 nodes inform the routing information originally learned by the nodes and the information of the RouterID, the management IP, the label and the like of the nodes to the A1 node;
s8, after the node A1 receives IGP multicast messages sent by the adjacent nodes A2 and A4, on one hand, the node A2 and A4 learn the RouterID, the management IP address and the label thereof, and on the other hand, the node A2 and the node A4 learn the RouterID, the management IP and the label corresponding to the nodes of other nodes A3, A5, A6 and B; on the other hand, the routing information of all other nodes a2, A3, a4, a5, a6 and B can be learned, and the local node a1 routing information table can be generated;
s10, after the A1 node has the routing information table, an optimal path is calculated for each other node on the network according to the relevant routing strategy, and a routing forwarding table is generated, such as: for the destination node B, an INT1 port with a little less hop count can be selected for forwarding; for the destination node a6, the INT2 port with a smaller hop count may be selected for forwarding, as shown in fig. 4;
s12, because the label of each node is unique on the whole network, and the node label and Router ID or management IP address are all in one-to-one correspondence, the routing forwarding table addressed according to the management IP address of each node is consistent with the label forwarding table addressed according to the label of each node on A1, and the routing forwarding table can be directly mapped out of the label forwarding table, so as to automatically establish the service channel for service forwarding.
Example two
In this embodiment, a node deletion situation is taken as an example to describe in detail, fig. 7 is a schematic diagram for automatically establishing a label forwarding channel for deleting a node according to a preferred embodiment of the present invention, and a structural schematic diagram shown in fig. 7 is taken as an example to describe how other nodes reestablish a label forwarding channel when a1 on an IPRAN network fails or loses power;
s2, when the a1 node fails or loses power, the a2 and a4 of the adjacent nodes on both sides a1 detect that the connection of the a1 is lost, delete the RouterID of the a1 node from the adjacent node information base, manage the IP address and the assigned label, and change the routing table information, such as the routing table information on the a2 node in fig. 7, change the next hop information reaching the destination node B from a1 to a4, and send the changed routing information to the new adjacent nodes A3 and a4 nodes in an OSPF multicast mode (224.0.0.5);
s4, when A3 and A4 receive the route information update sent by A2 node, the route information table on each node is updated, and the A1 node information is deleted in the node information base, and the route update information is sent to the adjacent nodes through DCN channel in the same way, until A1 deleting operation and route information table update are carried out on all the nodes on the network;
s6, when the nodes on the network form a new route information table, recalculating a new route forwarding table and label forwarding table; as for the node a2 in fig. 7, after the node a1 fails, its interface INT1 fails, and its output interface to the destination node a6 becomes interface INT 3;
s8, and for the label forwarding table on a2, the label forwarding table is also consistent with the route forwarding table, and makes corresponding modification, and changes the LSPA6 outgoing interface to a6 to INT3, so as to automatically establish a new label forwarding channel.
EXAMPLE III
In this embodiment, a label distribution situation is taken as an example to describe in detail, fig. 8 is a schematic diagram of a node forwarding label distribution process according to a preferred embodiment of the present invention, and fig. 8 is taken as an example to briefly describe how an IPRAN network node distributes a full-network unique MPLS label process;
s2, for a1, a2, A3 and a sink node B in fig. 8, after the DCN management channels of the respective nodes are opened, the unique identification information such as MPLS labels or VLANs allocated to the respective nodes is encapsulated in IP packets by the NMS network management system through the DCN channels, and then sent to the respective nodes for allocation in a standard ethernet frame manner;
s4, if the controller centralized allocation is adopted, as shown in fig. 8, the controller may configure unique forwarding labels or identifiers for the a1, the a2, the A3 and the node B through TLS or TCP or other channels, respectively.
Fig. 9 is a schematic diagram of a zero-configuration plug-and-play flow of the IPRAN according to a preferred embodiment of the present invention, and the overall flow is as shown in fig. 9, in the above preferred embodiment, a management IP address can be generated from the master to create a DCN channel by itself; by expanding an IGP routing protocol, Routerid is realized, and the IP address is managed to be announced and learned; a label forwarding channel is automatically established between an access node and an aggregation node, LSP (label switched path) static state or LDP (label switched protocol) is not needed, and static configuration such as resource reservation protocol-traffic engineering (RSVP-TE for short) based on flow engineering extension is adopted.
In another embodiment, a software is provided, which is used to execute the technical solutions described in the above embodiments and the preferred embodiments.
In another embodiment, a storage medium is provided, wherein the software is stored in the storage medium, and the storage medium includes, but is not limited to, an optical disc, a floppy disc, a hard disc, a rewritable memory, and the like.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
1. A method of traffic transfer, comprising:
the first node generates a route forwarding table reaching other nodes according to the whole network topological structure, and establishes a tunnel forwarding table according to a destination node address in the route forwarding table and a tunnel identification ID corresponding to the node;
and the first node transmits the service according to the tunnel ID on the service message and the tunnel forwarding table.
2. The method of claim 1, before the first node establishes the tunnel forwarding table according to the destination node address in the route forwarding table and the tunnel ID corresponding to the node, further comprising:
the first node acquires the tunnel ID of the other node and the unique identification of the other node;
and the first node generates a corresponding relation table of the unique identifier of each other node and the tunnel ID corresponding to the node, wherein the unique identifiers of the other nodes are used for searching the destination node addresses corresponding to the other nodes in the routing forwarding table.
3. The method of claim 2, wherein the first node obtaining the tunnel IDs of the other nodes comprises:
the first node receives the tunnel ID of the other nodes and the unique identification of the other nodes, which are advertised by the other nodes through an Interior Gateway Protocol (IGP) multicast message; and/or the presence of a gas in the gas,
and the first node issues LSA through the routing update of the IGP protocol to learn the tunnel ID of all nodes on the network and the unique identification of other nodes.
4. The method of claim 3, wherein the first node obtaining the tunnel ID of the other node comprises:
the first node receives the tunnel ID of the other nodes and the unique identification of the other nodes, which are advertised by the other nodes in the TLV message format; and/or the presence of a gas in the gas,
and the first node issues LSA to learn the tunnel ID of all nodes on the network and the unique identification of other nodes through route updating of an IGP protocol in a TLV message format.
5. The method according to any of claims 2 to 4, wherein the unique identification comprises at least one of: and managing a loopback IP address and a route RouterID.
6. The method of claim 2, further comprising, before the first node obtains the tunnel IDs of the other nodes:
after each node gets through a DCN channel of a network management data communication network, a network management system NMS issues the tunnel ID to each node through the DCN channel; or,
and the controller issues the tunnel ID to each node on the network through a control connection channel.
7. The method of claim 1, wherein the first node generating a routing forwarding table to other nodes according to the entire network topology comprises:
and the first node calculates the optimal path to the other nodes according to the topological structure of the whole network, and generates a routing forwarding table to the other nodes according to the optimal path.
8. The method of any of claims 1-7, wherein the tunnel ID comprises at least one of: multiprotocol label switching MPLS labels, virtual local area networks VLAN.
9. A traffic transmitting apparatus at a first node, comprising:
the channel establishing module is used for generating a route forwarding table reaching other nodes according to the whole network topological structure and establishing a tunnel forwarding table according to a destination node address in the route forwarding table and a tunnel identification ID corresponding to the node;
and the service transmission module is used for transmitting the service according to the tunnel ID on the service message and the tunnel forwarding table.
10. The apparatus of claim 9, further comprising:
the acquisition module is used for acquiring the tunnel ID of the other node and the unique identifier of the other node; and
and a generating module, configured to generate a correspondence table between the unique identifier of each of the other nodes and the tunnel ID corresponding to the node, where the unique identifier of each of the other nodes is used to search, in the routing forwarding table, a destination node address corresponding to the other node.
11. The apparatus of claim 10, wherein the obtaining module is configured to:
receiving tunnel IDs of other nodes and unique identifications of the other nodes, which are advertised by the other nodes through an Interior Gateway Protocol (IGP) multicast message; and/or, issuing the LSA via a route update of the IGP protocol learns the tunnel IDs to all nodes on the network and the unique identities of the other nodes.
12. The method according to claim 10 or 11, wherein the unique identification comprises at least one of: and managing a loopback IP address and a route RouterID.
13. The apparatus of claim 9, wherein the channel establishing module is configured to:
and calculating the optimal path reaching the other nodes according to the topological structure of the whole network, and generating a routing forwarding table reaching the other nodes according to the optimal path.
14. The apparatus according to any of claims 9 to 13, wherein the tunnel ID comprises at least one of: multiprotocol label switching MPLS labels, virtual local area networks VLAN.
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| CN201410555538.9A CN105577502B (en) | 2014-10-17 | 2014-10-17 | Service transmission method and device |
| PCT/CN2015/074532 WO2016058329A1 (en) | 2014-10-17 | 2015-03-18 | Service transfer method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410555538.9A CN105577502B (en) | 2014-10-17 | 2014-10-17 | Service transmission method and device |
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| CN105577502A true CN105577502A (en) | 2016-05-11 |
| CN105577502B CN105577502B (en) | 2020-03-10 |
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Also Published As
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| WO2016058329A1 (en) | 2016-04-21 |
| CN105577502B (en) | 2020-03-10 |
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