CN102025625A - Method and device for supporting multiple line cards by three layers of pseudo wires - Google Patents
Method and device for supporting multiple line cards by three layers of pseudo wires Download PDFInfo
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- CN102025625A CN102025625A CN201010578766XA CN201010578766A CN102025625A CN 102025625 A CN102025625 A CN 102025625A CN 201010578766X A CN201010578766X A CN 201010578766XA CN 201010578766 A CN201010578766 A CN 201010578766A CN 102025625 A CN102025625 A CN 102025625A
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Abstract
The invention discloses a method and a device for supporting multiple line cards by three layers of pseudo wires, which are used in the technical field of communication. The method comprises the following steps: after receiving a PWE3 (pseudo-wire emulation edge-to-edge) data packet from a far-end device, a main control panel acquires a target IP address in the PWE3 data packet, wherein the target IP address is the IP address of a service processing board; and the PWE3 data packet is routed to the corresponding service processing board in accordance with the correspondence relationship between the acquired and stored IP addresses and service processing boards. By using the method and the device, the data packet can be directly routed to the target service processing board by setting the target IP address of the PWE3 data packet, thereby solving the problem that users supported by the device are reduced as long as a service forwarding board is added to the device.
Description
Technical field
The present invention relates to communication technology broadband access two layer service bearing technology fields end to end, relate in particular to method and device that a kind of three layers of virtual link are supported the polylith ply-yarn drill.
Background technology
Along with the development of IP data network, the expanding of IP network itself, scalable and compatible intercommunication ability are very strong.The flexibility of the upgrading of traditional communication network, expansion, intercommunication then compares relatively poor, be subject to transmission manner and professional type, and the shared property of newly-built network is also relatively poor, is unsuitable for the intercommunication management.Therefore in the upgrading of traditional communication net and expansion process, be to consider to set up the network of repetition or make full use of existing or common network resource.PWE3 (Pseudo-Wire Emulation Edge to Edge, the pseudo wire emulation of edge-to-edge) combines conventional communication networks and one of solution of proposing just with existing packet network.
The PWE3 technology can also interconnect traditional network and packet switching network by the PWE3 technology except some the intrinsic advantages with MPLS L2VPN, thereby realizes the expansion of the shared and network of resource.
The PWE3 technology is carried out the professional realization flow of transmitting: PWE3 three layer services all are issued to the PWE3 disposable plates, transmit by transmitting again of PWE3 disposable plates.The above-mentioned professional method of transmitting must be inserted a PWE3 and be transmitted service processing board on each frame, that will cause the cost of equipment to increase, and each frame of the number of users that can support reduces by 16 E1 users.If do not add the pwe3 disposable plates,, can't determine to be issued to any piece PWE3 service processing board for the packet of coming from the far-end route.
Summary of the invention
The invention provides a kind of three layers of virtual link and support the method and the device of polylith ply-yarn drill, be used for solving existing PWE3 technology and carry out business when transmitting, must add the professional disposable plates of transmitting, thus the problem of the user that minimizing equipment can be supported minimizing.
The embodiment of the invention provides a kind of three layers of virtual link to support the method for polylith ply-yarn drill, comprising:
Master control borad obtains the purpose IP address in this PWE3 packet after receiving the PWE3 packet that remote equipment sends, and wherein, this purpose IP address is the IP address of service processing board;
IP address and the IP address of self preserving and the corresponding relation of service processing board with getting access to are routed to the corresponding service disposable plates with described PWE3 packet.
Also provide a kind of three layers of virtual link to support the device of polylith ply-yarn drill according to said method the present invention, comprising:
The destination address acquisition module is used for obtaining the purpose IP address in this PWE3 packet after receiving the PWE3 packet that remote equipment sends, and wherein, this purpose IP address is the IP address of service processing board;
Switching Module is used for the IP address that will get access to and the IP address of self preserving and the corresponding relation of service processing board, and described PWE3 packet is routed to the corresponding service disposable plates.
Method and apparatus provided by the invention can be by being provided with the purpose IP address of PWE3 packet, thereby make packet can be routed directly to the purpose service processing board.Solved and in equipment, added professional conversion board, thus the problem that the user that minimizing equipment can be supported reduces.
Description of drawings
Fig. 1 is the flow chart that a kind of three layers of virtual link of the embodiment of the invention are supported the method for polylith ply-yarn drill;
Figure 1A is the professional suitable network structure figure of institute of forwarding in the prior art;
Fig. 2 is the structure chart that a kind of three layers of virtual link of the embodiment of the invention are supported the device of polylith ply-yarn drill.
Embodiment
The embodiment of the invention provides a kind of three layers of virtual link to support the method for polylith ply-yarn drill, this method comprises: after master control borad receives the PWE3 packet that remote equipment sends, obtain the purpose IP address in this PWE3 packet, wherein, this purpose IP address is the IP address of service processing board; IP address and the IP address of self preserving and the corresponding relation of service processing board with getting access to are routed to the corresponding service disposable plates with described PWE3 packet.
As shown in Figure 1, the embodiment of the invention provides a kind of three layers of method of supporting the polylith ply-yarn drill, and concrete steps comprise:
Shown in Figure 1A, the professional institute's suitable network structure of transmitting during prior art has, concrete applied environment is:
External E1, PBX etc. for example, the equipment self narrow band service pools E1 by ODTI/HDTI.AN equipment self narrow band service goes out E1 by master control borad.E1 load by ODTI pools is packaged into the UDP/IP bag by the simulation process plate, and then carries out communication by UDP network and opposite end, thereby has realized the function of TDM service bearer on three-layer networks such as UDP.
In order to upgrade the relation of IP address and service processing board timely, the embodiment of the invention also comprises:
When adding the new business disposable plates, the IP address of this new business disposable plates is set, and in described IP mapping table, adds clauses and subclauses and preserve the corresponding relation of this new business disposable plates and IP address.
Before sending packet, the IP address that from the IP mapping table, obtains this purpose service processing board according to the sign of the purpose service processing board of the required transmission of PWE3 packet, and be the purpose IP address of PWE3 packet to be sent with the IP address setting that gets access to.
The E1 business that pools has entered after the CEEA plate, concrete seals the dress form shown in figure three, when the PWE3 artificial service was carried on the UDP/IP network, the purpose IP address setting of data message was the IP address of purpose PE, realizes two pathfindings between the PE by IP routing protocol; Use the destination slogan of UDP to represent PW-Label.
How PE knows data message will send to which PW (Pseudo wire, virtual link) from the PWE3 message (or being referred to as the PWE3 packet) that arrives.During the destination address of the PWE3 packet of each far-end is, if if purpose IP address is consistent with the address of the PWE3 disposable plates of local terminal, then with the PWE3 packet exchange that receives to this ply-yarn drill.
As shown in Figure 2, the embodiment of the invention also provides a kind of three layers of virtual link to support the device of polylith ply-yarn drill, and this device specifically comprises destination address acquisition module 201 and Switching Module 202:
Destination address acquisition module 201 is used for obtaining the purpose IP address in this PWE3 packet after receiving the PWE3 packet that remote equipment sends, and wherein, this purpose IP address is the IP address of service processing board;
In addition, be provided with in embodiments of the present invention and can be set to each Business Processing by the address setting module and do a different IP address is set:
In addition, for remote equipment when sending packet, the address setting module 203 of this device of IP address that can determine the purpose service processing board is after the corresponding relation with IP address and service processing board is saved in the IP mapping table, being used for that also described IP mapping table is sent to described remote equipment preserves, make remote equipment when arbitrary purpose service processing board sends the PWE3 packet, from the IP address that described IP mapping table obtains the purpose service processing board, and be the purpose IP address of PWE3 packet to be sent with the IP address setting that gets access to.
In the application of reality, can add the corresponding service processing plate according to the increase of pending business, for the renewal that makes that the IP mapping table is real-time, address setting module 203 in the embodiment of the invention also is used for when adding the new business disposable plates, the IP address of this new business disposable plates is set, and in described IP mapping table, adds clauses and subclauses and preserve the corresponding relation of this new business disposable plates and IP address.
The method and apparatus that provides by inventive embodiments is realized the forwarding of packet, does not need the professional disposable plates of transmitting of PWE3, just can support polylith PWE3 service processing board.
Using the method and apparatus that the embodiment of the invention provided need be adding the professional disposable plates of transmitting, so for a central office, an equipment can be supported 16 road E1 circuit more.Thereby raising usage ratio of equipment.
Method of the present invention is not limited to the embodiment described in the embodiment, and those skilled in the art's technical scheme according to the present invention draws other execution mode, belongs to technological innovation scope of the present invention equally.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (8)
1. the method for three layers of virtual link support polylith ply-yarn drill is characterized in that, comprising:
Master control borad obtains the purpose IP address in this PWE3 packet after receiving the pseudo wire emulation PWE3 packet of the edge-to-edge that remote equipment sends, and wherein, this purpose IP address is the IP address of service processing board;
IP address and the IP address of self preserving and the corresponding relation of service processing board with getting access to are routed to the corresponding service disposable plates with described PWE3 packet.
2. the method for claim 1 is characterized in that, before master control borad receives the PWE3 packet that far-end sends, the IP address of each disposable plates is set, and the corresponding relation of IP address and service processing board is saved in the IP mapping table.
3. method as claimed in claim 2 is characterized in that, master control borad is saved in the corresponding relation of IP address and service processing board after the IP mapping table, described IP mapping table is sent to described remote equipment preserve, then
When remote equipment sends the PWE3 packet to arbitrary purpose service processing board,, and be the purpose IP address of PWE3 packet to be sent with the IP address setting that gets access to from the IP address that described IP mapping table obtains the purpose service processing board.
4. method as claimed in claim 2 is characterized in that, when adding the new business disposable plates, the IP address of this new business disposable plates is set, and adds clauses and subclauses and preserve the corresponding relation of this new business disposable plates and IP address in described IP mapping table.
5. the device of three layers of virtual link support polylith ply-yarn drill is characterized in that, comprising:
The destination address acquisition module is used for obtaining the purpose IP address in this PWE3 packet behind the pseudo wire emulation PWE3 packet that receives the edge-to-edge that remote equipment sends, and wherein, this purpose IP address is the IP address of service processing board;
Switching Module is used for the IP address that will get access to and the IP address of self preserving and the corresponding relation of service processing board, and described PWE3 packet is routed to the corresponding service disposable plates.
6. device as claimed in claim 5 is characterized in that, this device also comprises:
The address setting module is used to be provided with the IP address of each disposable plates, and the corresponding relation of IP address and service processing board is saved in the IP mapping table.
7. device as claimed in claim 6, it is characterized in that, described address setting module is after the corresponding relation with IP address and service processing board is saved in the IP mapping table, being used for that also described IP mapping table is sent to described remote equipment preserves, make remote equipment when arbitrary purpose service processing board sends the PWE3 packet, from the IP address that described IP mapping table obtains the purpose service processing board, and be the purpose IP address of PWE3 packet to be sent with the IP address setting that gets access to.
8. device as claimed in claim 6, it is characterized in that, the described module that is provided with also is used for when adding the new business disposable plates IP address of this new business disposable plates being set, and adds clauses and subclauses and preserve the corresponding relation of this new business disposable plates and IP address in described IP mapping table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010578766XA CN102025625A (en) | 2010-12-08 | 2010-12-08 | Method and device for supporting multiple line cards by three layers of pseudo wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010578766XA CN102025625A (en) | 2010-12-08 | 2010-12-08 | Method and device for supporting multiple line cards by three layers of pseudo wires |
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| CN102025625A true CN102025625A (en) | 2011-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010578766XA Pending CN102025625A (en) | 2010-12-08 | 2010-12-08 | Method and device for supporting multiple line cards by three layers of pseudo wires |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607360A (en) * | 2013-11-14 | 2014-02-26 | 福建星网锐捷网络有限公司 | Message processing method, line card and switching equipment |
| CN104935505A (en) * | 2014-03-21 | 2015-09-23 | 杭州迪普科技有限公司 | Message forwarding and assistance forwarding method and apparatus, and relay |
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| US7392318B1 (en) * | 2003-03-21 | 2008-06-24 | Novell, Inc. | Method and system for balancing a traffic load in a half-duplex environment |
| CN101299721A (en) * | 2008-06-19 | 2008-11-05 | 杭州华三通信技术有限公司 | Method for switching message of switching network, switching device, route line card and Ether line card |
| CN101616084A (en) * | 2009-07-29 | 2009-12-30 | 中兴通讯股份有限公司 | A kind of distributed IPSec load sharing device and method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7392318B1 (en) * | 2003-03-21 | 2008-06-24 | Novell, Inc. | Method and system for balancing a traffic load in a half-duplex environment |
| CN1960281A (en) * | 2005-11-02 | 2007-05-09 | 盛科网络有限公司 | Virtual internet exchanging system having virtual line card |
| CN101299721A (en) * | 2008-06-19 | 2008-11-05 | 杭州华三通信技术有限公司 | Method for switching message of switching network, switching device, route line card and Ether line card |
| CN101616084A (en) * | 2009-07-29 | 2009-12-30 | 中兴通讯股份有限公司 | A kind of distributed IPSec load sharing device and method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103607360A (en) * | 2013-11-14 | 2014-02-26 | 福建星网锐捷网络有限公司 | Message processing method, line card and switching equipment |
| CN103607360B (en) * | 2013-11-14 | 2017-05-24 | 福建星网锐捷网络有限公司 | Message processing method, line card and switching equipment |
| CN104935505A (en) * | 2014-03-21 | 2015-09-23 | 杭州迪普科技有限公司 | Message forwarding and assistance forwarding method and apparatus, and relay |
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Application publication date: 20110420 |