CN104301252A - Data sending system and method - Google Patents
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- CN104301252A CN104301252A CN201410504528.2A CN201410504528A CN104301252A CN 104301252 A CN104301252 A CN 104301252A CN 201410504528 A CN201410504528 A CN 201410504528A CN 104301252 A CN104301252 A CN 104301252A
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Abstract
The embodiment of the invention provides a data sending system and method which can solve the problems happening when an existing inside network sends data. The data sending system comprises a central management server and tunnel nodes. The central management server is used for configuring and managing a tunnel network, the tunnel nodes are configured on subnets established at different geographic positions in the same inside network according to configured topological information so that the tunnel network can be established, a routing information table and service quality information of the tunnel network are configured, hence, after the tunnel nodes receive IP messages transmitted by the subnets, the service quality information can be searched for and be matched with flow control information, the transmitting flow control strategy of the messages in the tunnel network is determined, and thus the problem such as delay in a link can be solved; then the IP messages are packaged into tunnel messages, the routing information table is searched for, the tunnel messages are sent according to configuration of the flow control information, and it is guaranteed that data can be sent into a target network address accurately and quickly.
Description
Technical field
The present invention relates to networking technology area, particularly relate to a kind of data Transmission system and a kind of data transmission method for uplink.
Background technology
In large enterprise especially Internet firm, internal network is very huge, and mostly across multiple operators machine room in several city.Although the network equipment in these different operators machine rooms constitutes an internal network that can interconnect, the link between the link between different cities, same city different operators machine room, its network parameter such as bandwidth, time delay is all inconsistent.
The internal network of especially Internet firm of enterprise usually carries multiple different network traffic demand, such as, some data traffic and online service closely related, need to pass through in the low delay of pole, other data traffics then priority are lower, insensitive to time delay.
But existing Intranet is not distinguished the data traffic transmitted between link, when such as, sending data in the link between different cities, often take the whole bandwidth of link, cause the forward delay interval of follow-up data.
Summary of the invention
Embodiment of the present invention technical problem to be solved is to provide a kind of data transmission method for uplink, with solve existing internal network send data time Problems existing.
Accordingly, the embodiment of the present invention additionally provides a kind of data Transmission system, in order to ensure the implementation and application of said method.
In order to solve the problem, the invention discloses a kind of data Transmission system, it is characterized in that, comprise: central management server and tunnel nodes, wherein: described central management server, comprising: set up module, for the topology information of configured tunneling technique network, and according to described topology information configured tunneling technique node on each subnet of same internal network building on diverse geographic location, set up described tunneled network; Routing configuration module, for configuring the route information table of described tunneled network; Quality of service configuration module, for configuring the quality of service information of each tunnel nodes in described tunneled network; Described tunnel nodes, comprising: critical point, tunnel module, for receiving the port information of Internet protocol IP message and described IP message from affiliated subnet, and is issued in affiliated subnet by the IP message parsed; Flow-control information matching module, for searching described quality of service information according to the port information of described IP message, mate the flow control information of described IP message, wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation; Encapsulation and deblocking module, for encapsulating described IP message, be created on the channel message transmitted in tunneled network; And carry out resolving the IP message obtaining correspondence to the channel message received; Node forwarding module, for being configured described channel message according to described flow control information, and sends described channel message according to route information table; And receive the channel message of other tunnel nodes transmission.
Optionally, described node forwarding module, also for before encapsulating described IP message, when described flow control information comprises compression ratio, compresses described IP message according to described compression ratio.
Optionally, described node forwarding module, for selecting the transmission link of described channel message in described tunneled network according to described preferential routing iinformation; And/or, according to the bandwidth information that channel message described in described bandwidth share information configuration takies when sending and sending in link, and determine that described channel message is the need of current limliting according to described bandwidth share information, wherein, determining when described channel message needs current limliting, described channel message to be joined in waiting list, when determining that described channel message does not need current limliting, described channel message is sent.
Optionally, described node forwarding module, searches route information table for the transmission link according to described channel message, described channel message is transmitted to the down hop tunnel node of tunnel nodes described in described transmission link.
Optionally, described node forwarding module, for receiving the channel message that other tunnel nodes send, and detects the object tunnel nodes whether described tunnel nodes is described channel message; When described tunnel nodes is not the object tunnel nodes of described channel message, search the down hop tunnel node that described channel message is transmitted to tunnel nodes described in described transmission link by route information table; When described tunnel nodes is the object tunnel nodes of described channel message, trigger described encapsulation and deblocking module to resolve described tunnel nodes.
The invention also discloses a kind of data transmission method for uplink, be applied to the topology information of the tunneled network based on central management server configuration, in the described tunneled network that configured tunneling technique node is set up on each subnet of same internal network building on diverse geographic location, described method comprises: described tunnel nodes receives IP message from affiliated subnet, and obtains the port information of described IP message; Port information according to described IP message searches quality of service information, obtains the flow control information of described IP message, and wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation; Described IP message is encapsulated, is created on the channel message transmitted in tunneled network; According to described flow control information, described channel message is configured, and according to route information table, described channel message is sent.
Optionally, before described IP message is encapsulated, also comprise: when described flow control information comprises compression ratio, according to described compression ratio, described IP message is compressed.
Optionally, according to described flow control information, described channel message is configured, comprises: the transmission link selecting described channel message in described tunneled network according to described preferential routing iinformation; And/or, according to the bandwidth information that channel message described in described bandwidth share information configuration takies when sending and sending in link, and determine that described tunnel literary composition is the need of current limliting according to described bandwidth share information, wherein, determining when described channel message needs current limliting, described channel message to be joined in waiting list, when determining that described channel message does not need current limliting, described channel message is sent.
Optionally, described foundation route information table sends described channel message, comprising: search route information table according to the transmission link of described channel message, described channel message is transmitted to the down hop tunnel node of tunnel nodes described in described transmission link.
Optionally, also comprise: receive the channel message that other tunnel nodes send, and detect the object tunnel nodes whether described tunnel nodes is described channel message; When described tunnel nodes is not the object tunnel nodes of described channel message, search the down hop tunnel node that described channel message is transmitted to tunnel nodes described in described transmission link by route information table; When described tunnel nodes is the object tunnel nodes of described channel message, carries out resolving obtaining corresponding IP message to described tunnel nodes, and the IP message parsed is issued in the subnet belonging to described tunnel nodes.
Compared with prior art, the embodiment of the present invention comprises following advantage:
Data Transmission system comprises central management server and tunnel nodes, central management server is used for being configured tunneled network and managing, described tunneled network can be set up according to topology information configured tunneling technique node on each subnet of same internal network building on diverse geographic location of configuration, and configure route information table and the quality of service information of this tunneled network, thus tunnel nodes is after receiving the IP message of sub-nets transmission, message adopts tunneled network to transmit and non-IP network, therefore quality of service information coupling flow control information can be searched, determine the stream interface driver that message transmits in tunneled network, as occupied bandwidth, link selection, send priority etc., thus reduce the problems such as the time delay in link in follow-up transmission and again IP message is packaged into channel message, then search route information table to send channel message according to the configuration of flow control information, by guaranteeing that data are accurate, in the object network address sent fast.
Accompanying drawing explanation
Fig. 1 is the connection diagram of a kind of tunneled network of the present invention;
Fig. 2 is the structured flowchart of a kind of data Transmission system of the present invention;
Fig. 3 is the flow chart of steps of a kind of data transmission method for uplink of the present invention;
Fig. 4 is that in the embodiment of the present invention, channel message forwards schematic diagram;
Fig. 5 is the optional step flow chart of a kind of data transmission method for uplink of the present invention;
Fig. 6 is the tunneled network schematic diagram that the embodiment of the present invention two provides.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
One of core idea of the embodiment of the present invention is, proposes a kind of data Transmission system, with solve existing internal network send data time Problems existing.This data Transmission system comprises central management server and tunnel nodes, central management server is used for being configured tunneled network and managing, described tunneled network can be set up according to topology information configured tunneling technique node on each subnet of same internal network building on diverse geographic location of configuration, and configure route information table and the quality of service information of this tunneled network, thus tunnel nodes is after receiving the IP message of sub-nets transmission, message adopts tunneled network to transmit and non-IP network, therefore quality of service information coupling flow control information can be searched, determine the stream interface driver that message transmits in tunneled network, as occupied bandwidth, link selection, send priority etc., thus reduce the problems such as the time delay in link in follow-up transmission and again IP message is packaged into channel message, then search route information table to send channel message according to the configuration of flow control information, by guaranteeing that data are accurate, in the object network address sent fast.
Embodiment one
With reference to Fig. 1, show the connection diagram of a kind of tunneled network of the present invention.
In the embodiment of the present invention, the data Transmission system of tunneled network comprises: a central management server 10 and more than two tunnel nodes 20.Central management server 10 is connected respectively with each tunnel nodes 20, and to be configured tunnel nodes 20, and each tunnel nodes 20 is directly connected with each other, thus forms the link of intercommunication, can transmit channel message each other.
Wherein, tunnel refer to that the hardware devices such as two-server set up on existing IP network as links such as TCP/UDP, this link table is shown as the network link of point-to-point (Point To Point) by both sides, and provides a virtual network interface to both sides.Based on this, tunneled network can be that the hardware devices such as some station servers are mutually set up as links such as TCP or UDP on existing IP network, and these links are expressed as a network in logic, and provides a virtual network interface to every station server.
With reference to Fig. 2, show the structured flowchart of a kind of data Transmission system of the present invention, specifically can comprise as lower module:
Central management server 10 is for setting up the tunneled network of data Transmission system, and the topology information of configured tunneling technique network, network routing table and quality of service information etc., be configured tunneled network, manage.
Central management server 10 comprises: set up module 1002, routing configuration module 1004 and service quality configuration module 1006, wherein:
Set up module 1002, for the topology information of configured tunneling technique network, and according to described topology information configured tunneling technique node on each subnet of same internal network building on diverse geographic location, set up described tunneled network.
In the embodiment of the present invention, Intranet can be the catenet of cross-domain different geographical, and therefore this internal network is included in different geographical position the multiple subnets set up, and also has the local area network (LAN) of intercommunication in subnet, data can be transmitted in each subnet, also can transmit between subnets.In order to control the data transmitted between subnet, can on each subnet configured tunneling technique node, realized the transmission of data between subnet by the link between tunnel nodes.
Therefore, setting up module 1002 can the topology information of configured tunneling technique network, and this topology information refers to the interconnective form of tunnel nodes of each subnet in tunneled network.And then can according to topology information configured tunneling technique node on subnet of configuration, set up and be connected to each other by tunnel nodes the tunneled network formed, therefore this tunnel nodes also achieves the topological structure of tunneled network.
Routing configuration module 1004, for configuring the route information table of described tunneled network.
Wherein, the main target that route information table is set up is to realize Routing Protocol and Route Selection.Route information table stores the path pointing to particular network address (network address as subnet) in internal network, certainly, and also can the information such as route metric value of record path in route information table, and the topology information containing network.Channel message can be sent to object tunnel nodes from source tunnel nodes based on this route information table.
Quality of service configuration module 1006, for configuring the quality of service information of each tunnel nodes in described tunneled network.
In the embodiment of the present invention, when transmitting data in subnet, adopt IP message, adopt channel message when transmitting data in the tunneled network between subnet, therefore when data will be transferred to two subnets from a subnet, IP message can be packaged into channel message.
Wherein, quality of service information is used for the transmission quality of the channel message transmitted in configured tunneling technique network, such as channel message occupied bandwidth, transmission priority, the link etc. selected, therefore comprised the flow control information of channel message by quality of service information, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation.
Wherein, compression ratio for determining the ratio compressed IP message, the ratio of size before the size namely after IP message compression and compression.
Bandwidth share information is used for the bandwidth information for channel message distributes, and takies 5M bandwidth as distributed channel message; Further, bandwidth share information also determines it is send immediately or send after buffer memory according to the traffic conditions of channel message.When message flow exceedes the bandwidth share of configuration, then send after buffer memory, otherwise send immediately, therefore bandwidth share information can as one of priority judgement information of channel message transmission.
Preferential routing iinformation, for determining the transmission link of channel message, as being divided into conventional link and reserve link, or is divided into high-speed link and generic link etc., and the different priorities according to message selects different links to send channel message.
Therefore, central management server 10 is for whole tunneled network, and the data transmission etc. of tunneled network is configured, manages, thus ensures that tunneled network normally works.Tunnel nodes to refer in tunneled network can with other equipment connections, there is absolute address and there is the network connection point transmitting or receive data function.Therefore tunnel nodes transmits after the IP message in subnet can being packaged into channel message between tunneled network, and also channel message solution can be honored as a queen is sent in subnet belonging to tunnel nodes, realizes the transmission of data between different sub-network.Described tunnel nodes 20 comprises: critical point, tunnel module 2002, flow-control information matching module 2004, encapsulation and deblocking module 2006 and node forwarding module 2008.
Critical point, tunnel module 2002, for receiving the port information of Internet protocol IP message and described IP message from affiliated subnet, and is issued to the IP message parsed in affiliated subnet.Wherein, this port information comprises the relevant information of transport layer protocol and transport layer port.
Flow-control information matching module 2004, for searching described quality of service information according to the port information of described IP message, mates the flow control information of described IP message.Wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation;
Encapsulation and deblocking module 2006, for encapsulating described IP message, be created on the channel message transmitted in tunneled network; And carry out resolving the IP message obtaining correspondence to the channel message received.
Node forwarding module 2008, for being configured described channel message according to described flow control information, and sends described channel message according to route information table; And receive the channel message of other tunnel nodes transmission.
Therefore based on above-mentioned data Transmission system, the present embodiment additionally provides a kind of data transmission method for uplink based on tunnel nodes.
With reference to Fig. 3, show the flow chart of steps of a kind of data transmission method for uplink of the present invention, specifically can comprise the steps:
Step 302, described tunnel nodes receives IP message from affiliated subnet, and obtains the port information of described IP message.
Step 304, the port information according to described IP message searches quality of service information, obtains the flow control information of described IP message.
Wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation.
Step 306, encapsulates described IP message, is created on the channel message transmitted in tunneled network.
Step 308, is configured described channel message according to described flow control information, and sends described channel message according to route information table.
When there is IP message in subnet and will sending other subnets, as IP message will be sent to from being positioned at Pekinese's subnet 1 subnet 2 (as shown in Figure 4) being positioned at Shanghai, the IP message transmissions that first will send at subnet 1 is on the tunnel nodes A of subnet 1, and send the port information of this tunnel nodes, port information comprises: transport layer protocol, source port, destination interface, source IP address, object IP address etc., wherein " source " refers to network node in the subnet at IP message place, and " object " refers to the network node of the subnet that IP message will be sent to.
Then tunnel nodes searches quality of service information according to the port information of described IP message, obtains the flow control information mated with described IP message, for performing corresponding flow-control operation when transmitting channel message.Then this tunnel nodes A carries out encapsulation generation channel message to IP message.
In the present embodiment, tunneled network can adopt transmission control protocol (Transmission Control Protocol, TCP), or User Datagram Protoco (UDP) (User Datagram Protocol, the agreement such as UDP), therefore can carry out the encapsulation of IP message according to the host-host protocol of this use.Wherein, TCP is a kind of SCCP connection-oriented (connecting guiding), reliable, IP-based transport layer protocol, and TCP is 6 at the protocol number of IP message.UDP is a kind of connectionless transport layer protocol in open system interconnection (Open System Interconnection, OSI) reference model, and provide the simple unreliable information transfer service towards affairs, UDP is 17 at the protocol number of IP message.
Then can according to the link etc. of the bandwidth information of flow control information configured tunneling technique message, transmission, thus determine that this is with the next tunnel nodes of channel message in transmission link, is sent to this channel message in next tunnel nodes according to route information table.
In the present embodiment, data Transmission system comprises central management server and tunnel nodes, central management server is used for being configured tunneled network and managing, described tunneled network can be set up according to topology information configured tunneling technique node on each subnet of same internal network building on diverse geographic location of configuration, and configure route information table and the quality of service information of this tunneled network, thus tunnel nodes is after receiving the IP message of sub-nets transmission, message adopts tunneled network to transmit and non-IP network, therefore quality of service information coupling flow control information can be searched, determine the stream interface driver that message transmits in tunneled network, as occupied bandwidth, link selection, send priority etc., thus reduce the problems such as the time delay in link in follow-up transmission and again IP message is packaged into channel message, then search route information table to send channel message according to the configuration of flow control information, by guaranteeing that data are accurate, in the object network address sent fast.
Embodiment two
On the basis of above-described embodiment, the present embodiment discusses this data Transmission system further, and based on the data transmission method for uplink of this data Transmission system.
In the present embodiment, data Transmission system comprises: central management server 10 and tunnel nodes 20.Central management server 10 comprises: set up module 1002, routing configuration module 1004 and service quality configuration module 1006.Described tunnel nodes 20 comprises: critical point, tunnel module 2002, flow-control information matching module 2004, encapsulation and deblocking module 2006 and node forwarding module 2008.
The embodiment of the present invention provides one to the tunnel net of user transparent on existing network, and uses tunnel net to replace legacy network to forward IP message.Therefore one or more Linux server can be increased in each subnet of existing internal network, such as server is configured to be intercomed mutually by udp protocol on existing internal network, the set of these communication links forms tunneled network, therefore can using the tunnel nodes of these servers as tunneled network, and tunnel nodes can be regarded as the virtual router of tunneled network.Existing network directly sets up tunneled network, the transformation expense to existing network can be reduced, reduce the expense etc. to server configuration modification.
Tunneled network comprises central management server, can be configured, at least comprise following configuration by central management server to each tunneled network:
(1) topological arrangement.
Namely the topology information in configured tunneling technique network between tunnel nodes (i.e. virtual router).Tunneled network is different from legacy network (as IP network), the router of legacy network is intercomed mutually by Routing Protocol, such as ospf (Open Shortest Path First, OSPF) agreement, or routing information protocol (Routing Information Protocol, RIP) etc., these agreements are all again realize based on broadcast, and namely the network topological information of legacy network is sent to other routers by broadcast.
In the present embodiment, tunneled network is structured on traditional IP, and the tunnel nodes of tunneled network is usually located on different subnets, only has cast link between tunnel nodes, cannot by the topology information of broadcast automatic acquisition tunneled network.Therefore can the topology information of pre-configured tunneled network, as manual configuration or traditionally network subnet topology etc. configuration, and each tunnel nodes can also configure the information of some downstream links, downstream links is the set of the object tunnel nodes that tunnel nodes E-Packets, and therefore the topology information of tunneled network can be rendered as a directed graph.Certainly, the object tunnel nodes that it will be sent to for a certain tunnel nodes is downstream node, and when it receives the message of other tunnel nodes, and other tunnel nodes are its upstream nodes, and therefore the link of tunneled network can be two-way communication.
(2) route information table configuration.
Route information table can describe the responsible outlet IP scope of each virtual router (i.e. tunnel nodes).Channel message, when tunneled network repeating, must be routed to an Egress node (object tunnel nodes), and packets restores can become original IP message to be sent on the legacy network of its place subnet by this Egress node.Its object IP can be checked, if in outlet IP scope, perform above-mentioned reduction, be forwarded to the step of subnet after each virtual router receives channel message.
(3) quality of service configuration.
Quality of service configuration information can be regarded as the set of tunneled network for the flow control policy of the data message of different demand, the demand of flow is with { source IP, source IP mask, source port, Target IP, Target IP mask, target port, transport layer protocol } etc. information describe, strategy and flow control information { bandwidth share, preferential route, data compression rate } etc. information describe.Above-mentioned flow control information can be applied in the process of channel message forwarding by virtual router.
Central management server is set up and management tunnel network by the above-mentioned information of configuration.Can, according to the topology information configuration server of configuration, adopt the tunnel nodes on subnet to set up tunneled network, as the tunneled network based on UDP link, and be configured in the contents such as route information table that tunneled network aspect uses and quality of service information.
In the present embodiment, tunneled network forms an abstract network, and the virtual router (i.e. tunnel nodes) of tunneled network is the critical point of IP message discrepancy tunneled network, is also the node of being responsible for carrying out in tunneled network inside message routing.Therefore, server in network can with the use tunnel net service that gateway is next transparent by default of the virtual router in self subnet, namely the critical point that during tunnel nodes, subnet is communicated with tunneled network, also be tunneled network tunnel nodes between transmit the node of data, realize the transparent transmission of data between subnet.Therefore tunnel nodes mainly performs following operating procedure:
(1) message repeating
Virtual router is after receiving the IP message that legacy network (as subnet) sends, necessarily can process IP message (such as compressing), then increase network packet first-class encapsulation operation in tunnel before message after treatment and IP message is packaged into channel message, again tunnel network packet is carried out routing forwarding, wherein can carry out the process operations such as Flow Control according to quality of service information in routing forwarding process.
(2) critical point of tunneled network
Virtual router is can carry out the process such as compression encapsulation to IP message at message entry/exit tunneled network, and channel message decompressed and the process such as deblocking, such as after receiving channel message, routing forwarding can be carried out to channel message according to route information table, namely determine this channel message to be forwarded to by route information table the down hop virtual router sending link, or be reduced into original IP message and turn and be dealt into legacy network by critical point.
Therefore, tunnel nodes as the critical point of the IP message discrepancy tunneled network of legacy network (subnet), namely can be responsible for the discrepancy of IP message between legacy network and tunneled network.And, for the tunneled network set up between servers according to topological arrangement, can the routing forwarding of message be realized in tunneled network aspect and guarantee the quality of message in repeating process, enable the IP message entering tunneled network be routed to optimum Egress node by optimal path in tunnel net, and can forward according to the quality of service information in central management server.
Based on above-mentioned discussion, in the present invention's embodiment, node forwarding module 2008, also for before encapsulating described IP message, when described flow control information comprises compression ratio, compresses described IP message according to described compression ratio.Namely determining that IP message that subnet is uploaded needs can first compress IP message according to compression ratio when forwarding, then the IP message after compression is encapsulated, generate corresponding channel message, as heading can be added on IP message and configure the channel message of the Information encapsulation one-tenth such as corresponding host-host protocol based on this host-host protocol.
Described node forwarding module 2008, for selecting the transmission link of described channel message in described tunneled network according to described preferential routing iinformation; And/or, according to the bandwidth information that channel message described in described bandwidth share information configuration takies when sending and sending in link, and determine that described channel message is the need of current limliting according to described bandwidth share information, wherein, determining when described channel message needs current limliting, described channel message to be joined in waiting list, when determining that described channel message does not need current limliting, described channel message is sent.
After generation channel message, can according to flow control information configured tunneling technique message, as selected the transmission link of channel message according to preferential routing iinformation, the bandwidth information and for example taken according to bandwidth share information configuration channel message and determine that channel message is the need of current limliting etc., any one flow-control operation above-mentioned can be performed in actual treatment, or the flow-control operation of its any combination.
As higher in a certain channel message priority, high-speed link can be selected to send according to preferential routing iinformation.If the priority of a certain channel message is lower certainly, then the generic link that priority can be selected lower equally forwards.If high priority message and low priority message are attempted to be forwarded by a certain link simultaneously, then limited forwarding high priority message, low priority message is then selected to join in waiting list according to the spare time of link degree of hurrying, and sends according to queue sequence.
Described node forwarding module, searches route information table for the transmission link according to described channel message, described channel message is transmitted to the down hop tunnel node of tunnel nodes described in described transmission link.
Described node forwarding module, for receiving the channel message that other tunnel nodes send, and detects the object tunnel nodes whether described tunnel nodes is described channel message; When described tunnel nodes is not the object tunnel nodes of described channel message, search the down hop tunnel node that described channel message is transmitted to tunnel nodes described in described transmission link by route information table; When described tunnel nodes is not the object tunnel nodes of described channel message, trigger described encapsulation and deblocking module to resolve described tunnel nodes.
On the basis of above-described embodiment, adopt concrete example discussion based on the data transmission method for uplink of this data Transmission system.
With reference to Fig. 5, show the optional step flow chart of a kind of data transmission method for uplink of the present invention, specifically can comprise the steps:
Step 502, described tunnel nodes receives IP message from affiliated subnet, and obtains the port information of described IP message.
Step 504, the port information according to described IP message searches quality of service information, obtains the flow control information of described IP message.Wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation.
Step 506, determines whether to need to compress described IP message according to described flow control information.
When described flow control information comprises compression ratio, perform step 508; Otherwise, perform step 510.
Step 508, compresses described IP message according to described compression ratio.
Step 510, encapsulates IP message, is created on the channel message transmitted in tunneled network.
Step 512, is configured described channel message according to described flow control information.
Wherein: select the transmission link of described channel message in described tunneled network according to described preferential routing iinformation; And/or, according to the bandwidth information that channel message described in described bandwidth share information configuration takies when sending and sending in link, and determine that described channel message is the need of current limliting according to described bandwidth share information, wherein, determining when described channel message needs current limliting, described channel message to be joined in waiting list, when determining that described channel message does not need current limliting, described channel message is sent.
Step 514, searches route information table according to the transmission link of described channel message, described channel message is transmitted to the down hop tunnel node of tunnel nodes described in described transmission link.
Thus can by the IP message repeating in subnet in tunneled network by aforesaid operations step, if a certain tunnel nodes receives the channel message receiving other tunnel nodes and send certainly, can detect this channel message according to route information table, determine self to be whether the object tunnel nodes of this channel message.If not the object tunnel nodes of described channel message, then search the down hop tunnel node that described channel message is transmitted to tunnel nodes described in described transmission link by route information table; If during the object tunnel nodes of described channel message, then carry out resolving obtaining corresponding IP message to described tunnel nodes, and the IP message parsed is issued in the subnet belonging to described tunnel nodes.
With reference to Fig. 6, show the tunneled network schematic diagram that the embodiment of the present invention two provides.
Basically illustrate 3 tunnel nodes in figure 6, in fact also there are other unshowned tunnel nodes in this tunneled network, namely each tunnel nodes can be connected by least two other tunnel nodes.Wherein, tunnel nodes A is responsible for producing of 192.168.0.0/24; Tunnel nodes B is responsible for producing of 192.168.1.0/24, and tunnel nodes C is responsible for producing of 192.168.2.0/24.
If netter family, tunnel A sends the message PACKET_A of a 192.168.0.10=>192.168.1.10 will to netter family, tunnel B.After tunnel nodes A receives message PACKET_A, adopt the port information coupling quality of service information determination flow control information of message PACKET_A, determine whether to need to perform the Flow Control process operations such as compression to message PACKET_A according to this flow control information, then message PACKET_A is being carried out to encapsulation generation channel message TPACKET_A.
After this, tunnel nodes A detects flow control information again, determine that this channel message TPACKET_A carries out other current-limiting operation, as determined the transmission link, occupied bandwidth etc. of channel message TPACKET_A, channel message TPACKET_A can also be put into waiting list as needs current limliting to wait for, if do not needed current limliting then directly can be forwarded to down hop tunnel nodes according to routing table, as the tunnel nodes B in Fig. 4.
Tunnel nodes B is after the channel message TPACKET_A receiving tunnel nodes A transmission, can testing goal IP address whether within the scope of the outlet IP of self, if within the scope of the outlet IP of self, then channel message TPACKET_A is reduced to IP message PACKET_A, is then forwarded to subnet from critical point.
Certainly, if a certain channel message is not within the scope of the outlet IP of self, then according to route information table, channel message is transmitted to down hop tunnel nodes.
On existing network, provide one to the tunnel net of user transparent, and use tunnel net to replace legacy network to forward IP message, the transformation expense to existing network can be reduced, reduce the expense etc. to server configuration modification.
It should be noted that, for embodiment of the method, in order to simple description, therefore it is all expressed as a series of combination of actions, but those skilled in the art should know, the embodiment of the present invention is not by the restriction of described sequence of movement, because according to the embodiment of the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and involved action might not be that the embodiment of the present invention is necessary.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually see.
Those skilled in the art should understand, the embodiment of the embodiment of the present invention can be provided as method, device or computer program.Therefore, the embodiment of the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the embodiment of the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The embodiment of the present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, terminal equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing terminal equipment to produce a machine, making the instruction performed by the processor of computer or other programmable data processing terminal equipment produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing terminal equipment, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded on computer or other programmable data processing terminal equipment, make to perform sequence of operations step to produce computer implemented process on computer or other programmable terminal equipment, thus the instruction performed on computer or other programmable terminal equipment is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although described the preferred embodiment of the embodiment of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of embodiment of the present invention scope.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or terminal equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or terminal equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the terminal equipment comprising described key element and also there is other identical element.
Above to a kind of data Transmission system provided by the present invention and a kind of data transmission method for uplink, be described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a data Transmission system, is characterized in that, comprising: central management server and tunnel nodes, wherein:
Described central management server, comprising:
Set up module, for the topology information of configured tunneling technique network, and according to described topology information configured tunneling technique node on each subnet of same internal network building on diverse geographic location, set up described tunneled network;
Routing configuration module, for configuring the route information table of described tunneled network;
Quality of service configuration module, for configuring the quality of service information of each tunnel nodes in described tunneled network;
Described tunnel nodes, comprising:
Critical point, tunnel module, for receiving the port information of Internet protocol IP message and described IP message from affiliated subnet, and is issued in affiliated subnet by the IP message parsed;
Flow-control information matching module, for searching described quality of service information according to the port information of described IP message, mate the flow control information of described IP message, wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation;
Encapsulation and deblocking module, for encapsulating described IP message, be created on the channel message transmitted in tunneled network; And carry out resolving the IP message obtaining correspondence to the channel message received;
Node forwarding module, for being configured described channel message according to described flow control information, and sends described channel message according to route information table; And receive the channel message of other tunnel nodes transmission.
2. system according to claim 1, is characterized in that:
Described node forwarding module, also for before encapsulating described IP message, when described flow control information comprises compression ratio, compresses described IP message according to described compression ratio.
3. system according to claim 1, is characterized in that:
Described node forwarding module, for selecting the transmission link of described channel message in described tunneled network according to described preferential routing iinformation; And/or, according to the bandwidth information that channel message described in described bandwidth share information configuration takies when sending and sending in link, and determine that described channel message is the need of current limliting according to described bandwidth share information, wherein, determining when described channel message needs current limliting, described channel message to be joined in waiting list, when determining that described channel message does not need current limliting, described channel message is sent.
4. the system according to claim 1 or 3, is characterized in that:
Described node forwarding module, searches route information table for the transmission link according to described channel message, described channel message is transmitted to the down hop tunnel node of tunnel nodes described in described transmission link.
5. system according to claim 1, is characterized in that,
Described node forwarding module, for receiving the channel message that other tunnel nodes send, and detects the object tunnel nodes whether described tunnel nodes is described channel message; When described tunnel nodes is not the object tunnel nodes of described channel message, search the down hop tunnel node that described channel message is transmitted to tunnel nodes described in described transmission link by route information table; When described tunnel nodes is the object tunnel nodes of described channel message, trigger described encapsulation and deblocking module to resolve described tunnel nodes.
6. a data transmission method for uplink, it is characterized in that, be applied to the topology information of the tunneled network based on central management server configuration, in the described tunneled network that configured tunneling technique node is set up on each subnet of same internal network building on diverse geographic location, described method comprises:
Described tunnel nodes receives IP message from affiliated subnet, and obtains the port information of described IP message;
Port information according to described IP message searches quality of service information, obtains the flow control information of described IP message, and wherein, described flow control information comprises following at least one item: compression ratio, bandwidth share information, preferential routing iinformation;
Described IP message is encapsulated, is created on the channel message transmitted in tunneled network;
According to described flow control information, described channel message is configured, and according to route information table, described channel message is sent.
7. method according to claim 6, is characterized in that, before encapsulating, also comprises described IP message:
When described flow control information comprises compression ratio, according to described compression ratio, described IP message is compressed.
8. method according to claim 6, is characterized in that, is configured, comprises according to described flow control information to described channel message:
The transmission link of described channel message in described tunneled network is selected according to described preferential routing iinformation; And/or
According to the bandwidth information that channel message described in described bandwidth share information configuration takies when sending and sending in link, and determine that described tunnel literary composition is the need of current limliting according to described bandwidth share information, wherein, determining when described channel message needs current limliting, described channel message to be joined in waiting list, when determining that described channel message does not need current limliting, described channel message is sent.
9. the method according to claim 6 or 8, is characterized in that, described foundation route information table sends described channel message, comprising:
Search route information table according to the transmission link of described channel message, described channel message is transmitted to the down hop tunnel node of tunnel nodes described in described transmission link.
10. method according to claim 6, is characterized in that, also comprises:
Receive the channel message that other tunnel nodes send, and detect the object tunnel nodes whether described tunnel nodes is described channel message;
When described tunnel nodes is not the object tunnel nodes of described channel message, search the down hop tunnel node that described channel message is transmitted to tunnel nodes described in described transmission link by route information table;
When described tunnel nodes is the object tunnel nodes of described channel message, carries out resolving obtaining corresponding IP message to described tunnel nodes, and the IP message parsed is issued in the subnet belonging to described tunnel nodes.
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