CN102333023A - Communication method and equipment in multilink transparent internet - Google Patents

Communication method and equipment in multilink transparent internet Download PDF

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Publication number
CN102333023A
CN102333023A CN201110302448A CN201110302448A CN102333023A CN 102333023 A CN102333023 A CN 102333023A CN 201110302448 A CN201110302448 A CN 201110302448A CN 201110302448 A CN201110302448 A CN 201110302448A CN 102333023 A CN102333023 A CN 102333023A
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route
bridge
message
end system
bridges
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CN102333023B (en
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缪仕福
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Ruijie Networks Co Ltd
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Fujian Star Net Communication Co Ltd
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Abstract

The invention provides a communication method and equipment in a multilink transparent internet. The method comprises the following steps of: receiving a message sent to a second routing network bridge from other end systems or a first end system by a first routing network bridge in multiple routing network bridges connected with the first end system through an aggregation port, wherein the second routing network bridge is called as a virtual routing network bridge which is connected between the first end system and the multiple routing network bridges; performing routing operation on the message, wherein the routing operation comprises the routing operation of the first routing network bridge and the routing operation of the second routing network bridge; and continuously performing routing transmission on the operated message. The equipment comprises a receiving module, an operating module and a sending module. By utilizing the scheme provided by the invention, the problems of message out-of-sequence and the like caused by continuous vibration of network topologies stored in the routing network bridges are effectively solved.

Description

Multichain connects communication means and the equipment in the transparent internet
Technical field
The embodiment of the invention relates to communication technical field, relates in particular to a kind of multichain and connects that transparent interconnected (Transparent Interconnection of Lots of Links abbreviates as: TRILL) communication means in the network and equipment.
Background technology
TRILL is the Internet engineering duty group (Internet Engineering Task Force; Abbreviate as: articulamentum (L2) network standard of IETF) recommending; (Spanning Tree Protocol abbreviates as: deficiency STP) to be used to solve the large-scale data center Spanning-Tree Protocol.In the L2 network, STP avoids the generation of loop through the mode of blocking redundant link, but has also caused the redundant link waste of bandwidth simultaneously.TRILL is through routing protocol (the Intermediate System to Intermediate System of Intermediate System-to-Intermediate System; Abbreviate as: IS-IS) Routing Protocol is introduced the L2 network; Solved the L2 loop problem; Kept the L2 multipath simultaneously, or (Equivalent Cost Multiple Path abbreviates: ECMP) the cost multipath such as to be called as.
In the TRILL network, IS-IS may learn the L2 network topology structure through the exchange topology information, and (Routing Bridge abbreviates as: L2 path RB) to calculate any route-bridge of arrival.Wherein can comprise cost shortest paths such as many of arriving same RB.(End System abbreviates as: ES) think and be connected end system on the RB2 when communicating, can select any paths in the cost shortest paths such as many when being connected to end system on the RB 1.
In realizing process of the present invention, the inventor finds to exist at least in the prior art following problem:
When first end system with aggregation port (Aggregate Port; Abbreviate as: when form AP) is connected at least two RB; The RB that second end system in the TRILL network is connected can't be determined to which RB of the end to be connected on first end system; Make the RB is connected with second end system a little while with one among a plurality of RB that message sends to first end system links to each other, for a moment with among a plurality of RB that message sends to first end system links to each other another, the continuous concussion of the network topology of preserving among initiation and the RB that second end system is connected; Message is out-of-sequence, influences the application of network.
Summary of the invention
The embodiment of the invention provides communication means and the equipment in a kind of TRILL network, in order to solve the problem that exists in the prior art.
The embodiment of the invention provides the communication means in a kind of TRILL network, comprising:
First route-bridge in a plurality of route-bridges that connect with the form and first end system of aggregation port; Receive the message that other end systems or said first end system send to the secondary route bridge, said secondary route bridge is to declare to be connected the virtual route-bridge between said first end system and the said a plurality of route-bridge;
Said message is carried out routing operations, and said routing operations comprises the routing operations of said first route-bridge and the routing operations of said secondary route bridge;
Message after the operation is continued the route transmission.
The embodiment of the invention provides a kind of first route-bridge, is connected with first end system with the form of aggregation port, comprising:
Receiver module is used to receive the message that other end systems or said first end system send to the secondary route bridge, and said secondary route bridge is to declare to be connected the virtual route-bridge between said first end system and said first route-bridge;
Operational module, the message that is used for said receiver module is received carries out routing operations, and said routing operations comprises the routing operations of said first route-bridge and the routing operations of secondary route bridge;
Sending module is used for the message after the said operational module operation is continued the route transmission.
Communication means and equipment in the TRILL network of the present invention; When first end system is connected to the route-bridge of a plurality of reality in the TRILL network with the form of AP; A virtual new route-bridge; Make other route-bridge think that this first end system only is connected on this virtual route-bridge, and the real responsibility of this virtual route-bridge by the true route-bridge that is attached thereto on behalf of carrying out.The scheme that the embodiment of the invention provides; Make the route-bridge that is connected with other end systems think that first end system is to be connected with this virtual route-bridge; Thereby efficiently solve the continuous concussion of the network topology of preserving in the above-mentioned route-bridge, thereby problem such as the message that causes is out-of-sequence.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Communication means flow chart in the TRILL network that Fig. 1 provides for one embodiment of the invention;
The TRILL network topology structure sketch map that Fig. 2 provides for the embodiment of the invention;
Fig. 3 is the structural representation that in TRILL network topology structure shown in Figure 2, increases behind the virtual route-bridge;
Communication means flow chart in the TRILL network that Fig. 4 provides for another embodiment of the present invention;
The structural representation of first route-bridge that Fig. 5 provides for one embodiment of the invention;
The structural representation of first route-bridge that Fig. 6 provides for another embodiment of the present invention;
The structural representation of first route-bridge that Fig. 7 provides for another embodiment of the present invention.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer; To combine the accompanying drawing in the embodiment of the invention below; Technical scheme in the embodiment of the invention is carried out clear, intactly description; Obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Communication means flow chart in the TRILL network that Fig. 1 provides for one embodiment of the invention, as shown in Figure 1, this method comprises:
Step 101, the first route-bridge RB1 other end systems of reception or first end system send to the message of secondary route bridge RB2.
Wherein, the first route-bridge RB1 is in a plurality of route-bridges of connecting of the form and first end system with aggregation port.Secondary route bridge RB2 declares to be connected the virtual route-bridge between first end system and the above-mentioned a plurality of route-bridge.Wherein, first route-bridge is general reference, and any one in a plurality of route-bridges that connect with the form and first end system of aggregation port all can be referred to as first route-bridge.The secondary route bridge is not in esse route-bridge, but the virtual route-bridge that comes out, and this virtual route-bridge that comes out is mainly used in and overcomes the network topology concussion that the RB that links to each other with other end systems preserves.
Step 102, the above-mentioned message that receives is carried out routing operations, this routing operations had both comprised the routing operations of first route-bridge, also comprised the routing operations of secondary route bridge.
Wherein, Because the secondary route bridge is virtual route-bridge; In fact do not exist; So need be accomplished the function of this virtual route-bridge by the actual route-bridge that is connected with first end system, the function here both can be the automatic calculating of IS-IS, also can be the operation of encapsulation or decapsulation.Concrete, if message is the message that other end systems send to the secondary route bridge, then this message is carried out decapsulation; If message is the message that first end system sends to the secondary route bridge, then this message is encapsulated.
Step 103, the message after will operating continue the route transmission.
Because first route-bridge has been accomplished the routing operations of first route-bridge and secondary route bridge, then can the message after the operation be continued the route transmission.Concrete, can be that the message after the decapsulation is sent to first end system, also can be the message after the encapsulation is sent to next the jumping route-bridge in the bang path.
The TRILL network topology structure sketch map that provides with the embodiment of the invention shown in Figure 2 below is an example, and method shown in Figure 1 is carried out detailed description.As shown in Figure 2, link to each other with route-bridge in the TRILL network, comprise two end systems altogether: end system 1 (S1) and end system 2 (S2), S1 links to each other with route-bridge 1 (RB1), and S2 is connected to RB3 and RB5 with the form of AP.RB2 and RB4 exist as middle route-bridge.Fig. 3 is the structural representation that in TRILL network topology structure shown in Figure 2, increases behind the virtual route-bridge, and wherein, the RB that with dashed lines is drawn is virtual, non-existent route-bridge RB7 in fact also.In conjunction with Fig. 2 and network topology structure shown in Figure 3, when S1 hoped to send message to S2, RB1 can send to RB3 or RB5 through RB2 or RB4 with the message that belongs to same session, and hopes that RB3 or RB5 are transmitted to RB7 with this message.But because in fact RB7 do not exist, so, be actually the correlation function of realizing RB7 by RB3 or RB5.For example, when RB3 or RB5 receive the message that sends to RB7, except that the decapsulation of carrying out self, can also carry out the encapsulation or the decapsulation of message for RB7.But, need to prove, because RB7 is virtual route-bridge, therefore can not carry out transfer to message.Therefore, when RB3 or RB5 replace RB7 externally to declare oneself syntople, need to notify other route-bridges in the TRILL network, this route-bridge (RB7) is not supported the message transfer.For example when sending the Intermediate System to Intermediate System message, the set of the overload on this message (overload) sign is got final product to other route-bridges.Thus, the TRILL network requires RB7 to the forwarding database list item that message carries out transfer with regard to not calculating to produce, and economizes on resources.
Communication means flow chart in the TRILL network that Fig. 4 provides for another embodiment of the present invention, as shown in Figure 4, on the basis of scheme shown in Figure 1, before the step 101, this method can also comprise:
A route-bridge in step 100a, a plurality of route-bridges that connect with the form and first end system of aggregation port; Other route-bridges in the TRILL network at place send first notification message; At least carry following content in this first notification message: the secondary route bridge is all adjacent with above-mentioned a plurality of route-bridge, and first end system is connected on the secondary route bridge.
Further, in order to make the accuracy of other these first notification messages of route-bridges affirmation in the TRILL network, the embodiment of the invention can also perhaps at step 100a simultaneously, even before step 100a, be carried out following steps after step 100a:
Step 100b, above-mentioned a plurality of route-bridges other route-bridges in the TRILL network send second notification message, carry following content in this second notification message at least: above-mentioned a plurality of route-bridges self are all adjacent with the secondary route bridge.
Here need to prove that first notification message and second notification message all can send through the Intermediate System to Intermediate System message.After other route-bridges in the TRILL network are received first notification message; Can know that the secondary route bridge is all adjacent with above-mentioned a plurality of route-bridge; And first end system is connected on the secondary route bridge; After receiving second notification message, can confirm that these a plurality of route-bridges self are all adjacent with the secondary route bridge really, to confirm to carry in first notification message accuracy of content.Embodiment of the invention Fig. 4 describes before occurring in step 100b with step 100a, not in order to limit protection scope of the present invention.
Here also need to prove, send the route-bridge of first notification message and can from above-mentioned a plurality of route-bridges, elect, the process of election can but be not limited to: the route-bridge of from a plurality of route-bridges, selecting MAC Address minimum/maximum; Perhaps; Select the route-bridge of IP address minimum/maximum, perhaps, can also select a route-bridge at random; Perhaps, select the minimum route-bridge of load.Condense together because a plurality of route-bridges are the forms with AP, comprise among the concrete AP that what route-bridges are prior known.The implementation that from a plurality of route-bridges, elects the route-bridge that sends first notification message so also can realize through existing mode, does not do here and gives unnecessary details.
Communication means in the TRILL network of the embodiment of the invention; When first end system is connected to the route-bridge of a plurality of reality in the TRILL network with the form of AP; A virtual new route-bridge; Make other route-bridge think that this first end system only is connected on this virtual route-bridge, and the real responsibility of this virtual route-bridge by the true route-bridge that is attached thereto on behalf of carrying out.The scheme that the embodiment of the invention provides; Make the route-bridge that is connected with other end systems think that first end system is to be connected with this virtual route-bridge; Thereby efficiently solve the continuous concussion of the network topology of preserving in the above-mentioned route-bridge, thereby problem such as the message that causes is out-of-sequence.
The structural representation of first route-bridge that Fig. 5 provides for one embodiment of the invention, this first route-bridge is the specific executive agent among the said method embodiment, carries out flow process and can not do here and give unnecessary details with reference to the description of said method embodiment.This first route-bridge is the route-bridge that the form with aggregation port is connected with first end system.As shown in Figure 5, this first route-bridge comprises: receiver module 501, operational module 502 and sending module 503.Wherein, receiver module 501 is used to receive the message that other end systems or first end system send to the secondary route bridge, and this secondary route bridge is to declare to be connected the virtual route-bridge between first end system and first route-bridge.The message that operational module 502 is used for receiver module 501 is received carries out routing operations, and this routing operations comprises the routing operations of first route-bridge and the routing operations of secondary route bridge.Sending module 503 is used for the message after operational module 502 operations is continued the route transmission.
Further, the structural representation of first route-bridge that another embodiment of the present invention as shown in Figure 6 provides, as shown in Figure 6, on architecture basics shown in Figure 5, this first route-bridge can also comprise: first notification module 504.This first notification module 504 is used for sending first notification message to other route-bridges of the TRILL network at first route-bridge place; At least carry following content in this first notification message: the secondary route bridge is adjacent with whole route-bridges that form with aggregation port is connected with first end system, and first end system is connected on the secondary route bridge.
Further, the structural representation of first route-bridge that another embodiment of the present invention as shown in Figure 7 provides, as shown in Figure 7, on Fig. 5 architecture basics perhaps shown in Figure 6, this first route-bridge can also comprise: second notification module 505.This second notification module 505 is used for sending second notification message to other route-bridges of the TRILL network at first route network place, and carry following content in this second notification message at least: first route-bridge is adjacent with the secondary route bridge.
On the basis of above-mentioned execution mode, this operational module 502 can comprise: decapsulation unit and/or encapsulation unit.Wherein, be the message that other end systems send to the secondary route bridge if decapsulation unit is used for message, this message is carried out decapsulation.If it is the message that first end system sends to the secondary route bridge that encapsulation unit is used for message, this message is encapsulated.
On the basis of above-mentioned execution mode, this sending module 503 can comprise: first module and/or Unit second.Wherein, first module is used for the message after the decapsulation is sent to first end system, and Unit second is used for the message after the encapsulation is sent to next jumping route-bridge of bang path.
First route-bridge of the embodiment of the invention; When first end system is connected to the route-bridge of a plurality of reality with the form of AP; A virtual new route-bridge; Make other route-bridge think that this first end system only is connected on this virtual route-bridge, and the real responsibility of this virtual route-bridge by the true route-bridge that is attached thereto on behalf of carrying out.The scheme that the embodiment of the invention provides; Make the route-bridge that is connected with other end systems think that first end system is to be connected with this virtual route-bridge; Thereby efficiently solve the continuous concussion of the network topology of preserving in the above-mentioned route-bridge, thereby problem such as the message that causes is out-of-sequence.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be accomplished through the relevant hardware of program command; Aforesaid program can be stored in the computer read/write memory medium; This program comprises the step of said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
What should explain at last is: above embodiment is only in order to explaining technical scheme of the present invention, but not to its restriction; Although with reference to previous embodiment the present invention has been carried out detailed explanation, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of the essence disengaging various embodiments of the present invention technical scheme of relevant art scheme.

Claims (11)

1. a multichain connects the communication means in the transparent internet, it is characterized in that, comprising:
First route-bridge in a plurality of route-bridges that connect with the form and first end system of aggregation port; Receive the message that other end systems or said first end system send to the secondary route bridge, said secondary route bridge is to declare to be connected the virtual route-bridge between said first end system and the said a plurality of route-bridge;
Said message is carried out routing operations, and said routing operations comprises the routing operations of said first route-bridge and the routing operations of said secondary route bridge;
Message after the operation is continued the route transmission.
2. method according to claim 1 is characterized in that, other end systems of said reception or said first end system send to before the message of secondary route bridge, and said method also comprises:
A route-bridge in the said a plurality of route-bridges that connect with the form and first end system of aggregation port; Other route-bridges that connect in the transparent interconnected TRILL network to the multichain that belongs to send first notification message; At least carry following content in said first notification message: the secondary route bridge is all adjacent with said a plurality of route-bridge, and said first end system is connected on the said secondary route bridge.
3. method according to claim 2 is characterized in that, the route-bridge that sends said first notification message is that election is come out from said a plurality of route-bridges, and said election process comprises:
From said a plurality of route-bridges, select the minimum route-bridge of medium access control MAC Address;
Perhaps, select the maximum route-bridge of MAC Address;
Perhaps, select the minimum route-bridge in Internet protocol IP address;
Perhaps, select the maximum route-bridge in IP address;
Perhaps, select a route-bridge at random;
Perhaps, select the minimum route-bridge of load.
4. according to claim 2 or 3 described methods, it is characterized in that said multichain to the place connects after other route-bridges in the transparent interconnected TRILL network send first notification message, said method also comprises:
Said a plurality of route-bridges other route-bridges in said TRILL network that connect with the form and first end system of aggregation port send second notification message, and carry following content in said second notification message at least: said a plurality of route-bridges are all adjacent with said secondary route bridge.
5. method according to claim 1 is characterized in that, said said message is carried out routing operations, comprising:
If said message is the message that said other end systems send to said secondary route bridge, said message is carried out decapsulation;
If said message is the message that said first end system sends to said secondary route bridge, said message is encapsulated.
6. method according to claim 5 is characterized in that, the message after said will the operation continues the route transmission, comprising:
Message after the decapsulation is sent to said first end system;
Perhaps, the message after the encapsulation is sent to next the jumping route-bridge in the bang path.
7. route-bridge is connected with first end system with the form of aggregation port, it is characterized in that, comprising:
Receiver module is used to receive the message that other end systems or said first end system send to the secondary route bridge, and said secondary route bridge is to declare to be connected the virtual route-bridge between said first end system and said first route-bridge;
Operational module, the message that is used for said receiver module is received carries out routing operations, and said routing operations comprises the routing operations of said first route-bridge and the routing operations of secondary route bridge;
Sending module is used for the message after the said operational module operation is continued the route transmission.
8. first route-bridge according to claim 7 is characterized in that, said first route-bridge also comprises:
First notification module; Be used for sending first notification message to other route-bridges of the transparent interconnected TRILL network of multilink that belongs to; At least carry following content in said first notification message: said secondary route bridge is adjacent with whole route-bridges that said first end system is connected with form with aggregation port, and said first end system is connected on the said secondary route bridge.
9. first route-bridge according to claim 7 is characterized in that, said first route-bridge also comprises:
Second notification module is used for sending second notification message to other route-bridges of said TRILL network, and carry following content in said second notification message at least: said first route-bridge is adjacent with said secondary route bridge.
10. according to each described first route-bridge in the claim 7 to 9, it is characterized in that said operational module comprises:
Decapsulation unit is the message that said other end systems send to said secondary route bridge if be used for said message, and said message is carried out decapsulation;
And/or encapsulation unit is the message that said first end system sends to said secondary route bridge if be used for said message, and said message is encapsulated.
11. first route-bridge according to claim 10 is characterized in that sending module comprises:
First module is used for the message after the decapsulation is sent to said first end system;
And/or Unit second is used for encapsulating next jumping route-bridge that message afterwards sends to bang path.
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CN102710500A (en) * 2012-05-10 2012-10-03 中兴通讯股份有限公司 Method for processing conflict of identifiers of device groups in network, and route bridge
CN103200100A (en) * 2013-03-12 2013-07-10 杭州华三通信技术有限公司 Method and device for packet transmitting
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CN104301917A (en) * 2014-09-15 2015-01-21 浙江生辉照明有限公司 Network anomaly self-healing method and system based on illumination devices
CN103248569B (en) * 2012-02-08 2016-11-30 杭州华三通信技术有限公司 Realize the method and device of TRILL network equivalent path

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CN103248569A (en) * 2012-02-08 2013-08-14 杭州华三通信技术有限公司 Method and device for achieving TRILL network equivalent path
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CN103248569B (en) * 2012-02-08 2016-11-30 杭州华三通信技术有限公司 Realize the method and device of TRILL network equivalent path
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