CN101459592B - Method, system and equipment for transmitting packets between supplier edge devices - Google Patents
Method, system and equipment for transmitting packets between supplier edge devices Download PDFInfo
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- CN101459592B CN101459592B CN2007101987608A CN200710198760A CN101459592B CN 101459592 B CN101459592 B CN 101459592B CN 2007101987608 A CN2007101987608 A CN 2007101987608A CN 200710198760 A CN200710198760 A CN 200710198760A CN 101459592 B CN101459592 B CN 101459592B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
- H04L12/462—LAN interconnection over a bridge based backbone
Abstract
The embodiment of the invention discloses a method for transporting messages among supplier edge devices, which comprises receiving messages, searching for the entrance of a tunnel or the entrance of a client edge device, which is corresponding to purpose medium visit control address and service instance marks of the messages, if the entrance is not found, and the tunnel which is transmitted by the messages does not belong to a whole connection tunnel, or the messages are transmitted by a client edge device, then, transmitting the messages through the tunnel which is connected, if the entrance is found, and the tunnel which is transmitted by the messages belongs to a whole connection tunnel, and transmitting the messages through connected tunnels except the whole connection tunnel. The embodiment of the invention further discloses a system for transmitting messages among supplier edge devices and a supplier edge device. The proposal of the embodiment of the invention reduces the quantity of tunnels on the supplier edge devices, lightens transmitting and replication pressure of the supplier edge devices, and improves the transmitting efficiency.
Description
Technical field
The present invention relates to data transmission technology, relate in particular between Provider Edge (PE, the Provider Edge) equipment and transmit method of message, system and PE equipment.
Background technology
Referring to Fig. 1, be the message structure schematic diagram that transmits on the different levels network in the existing Ethernet.Wherein, (a) show the message structure that transmits on the client layer, the message that transmit this moment comprises user data (Payload), source medium access control (MAC, Media Access Conrrol) address (SA, Source Address) and target MAC (Media Access Control) address (DA, Destination Address), the message structure on the client layer is very simple, only add SA and DA on user data, such message structure is called two layer message.(b) shows the message structure that transmits on the Access Layer among Fig. 1, the message that transmit this moment comprises Payload, SA and DA, and inserted VLAN ID (VID in this message, Virtual Local Area Network Identification), this VID can be used for dividing the affiliated broadcast domain of user.(c) shows the message structure that transmits on the convergence-level among Fig. 1, the message that transmit this moment comprises Payload, SA and DA, the VID that inserts in the Access Layer is called customer virtual local area network (C-VID, Customer VID), and, in this message, also insert service virtual local area network (S-VID, Service VID), be used for a differentiated service or a class user.
(d) shows the message structure that transmits on the core layer among Fig. 1, and the message that transmit this moment comprises Payload, SA, DA, C-VID and S-VID.(CE, Customer Edge) equipment is transparent to the purpose CE equipment of far-end from a client edge with message on core layer, realizes that by PE device forwards message PE equipment links to each other with CE equipment, connects by key Ethernet tunnel between the PE equipment.When message is passed through tunnel transmission, need on heading, add two layers of head, these two layers of heads are used to identify the tunnel, comprise four fields: expression Service Instance sign (I-TAG, Instance TAG) field of field, expression backbone network VID (B-TAG), expression backbone network source MAC (B-SA, the field of field Backbone-Source Address) and expression backbone network target MAC (Media Access Control) address (B-DA, Backbone-Destination Address).Wherein, I-TAG is used for identifying the affiliated Service Instance in tunnel, and B-SA is used for identifying the tunnel source end; Two fields of B-TAG and B-DA are used for identifying the tunnel destination.
Transmit method of message in the prior art between the PE equipment and comprise Institute of Electrical and Electric Engineers (IEEE, Institute of Electrical and Electronics Engineers) the key bridge traffic engineering of the supplier who formulates (PBB-TE, Provider Backbone Bridge Traffic Engineering) technology, this technology specifically comprises:
PE equipment receives the message that CE equipment transmits, the inlet that enters PE equipment according to message is determined the I-TAG corresponding with this message, I-TAG represents the Service Instance sign (ID under this message, Identification), have a plurality of inlets on the PE equipment, each inlet is connected with a CE equipment, the corresponding more than Service Instance of these a plurality of inlets possibilities, the a plurality of tunnels that connect with PE equipment also may be corresponding a more than Service Instance, all PE equipment that relate in the message transport process, the I-TAG of all tunnels and the inlet when CE equipment enters PE equipment is identical; Then, inquire about in the MAC table according to described I-TAG that determines and the DA in the message, comprised DA and the I-TAG in the message in the MCA table, and destination is the corresponding relation between the inlet in DA and the tunnel that belongs to described I-TAG, perhaps, and the address be corresponding relation between DA and the CE equipment entrance that belongs to described I-TAG.
If inquire the inlet in the tunnel corresponding with the DA of message and I-TAG, then on this heading, add two layers of head that identify the tunnel that inquires, this message is sent to the inlet in this tunnel, then this message is sent to the tunnel destination by the described tunnel that finds, the PE equipment of tunnel destination after receiving message is peeled two layers of head on the heading off, recovers tunnel message before; Inquire about in the MAC table according to the DA in the message and I-TAG then, find corresponding CE equipment entrance after, send purpose CE equipment to.
If do not find the inlet or the CE equipment entrance in corresponding tunnel according to the DA of message and I-TAG in the MAC table, then PE equipment is broadcast to all PE equipment with message.Broadcasting process is specially: copy packet, be sent to the inlet in each tunnel of connection, on heading, add two layers of head in each tunnel of sign respectively, be sent to the tunnel destination then, DA and I-TAG according to message behind the PE equipment reception message of tunnel destination find corresponding CE equipment entrance in the MAC table of self, if inquire, then send purpose CE equipment to, if do not find, broadcasting packet no longer then.
Networking example below by Fig. 2 describes the scheme that transmits message between the PE equipment of prior art.The PE equipment that hypothesis belongs to a certain Service Instance among Fig. 2 is 5, comprise PE1, PE2, PE3, PE4 and PE5,5 PE equipment connect entirely, just connect by the tunnel in twos between 5 PE equipment, all tunnels all are the full tunnels that connects, and can not E-Packet between each full tunnel that connects.After PE equipment receives the message of CE equipment transmission, determine I-TAG according to the inlet that receives message, DA according to I-TAG that determines and message inquires about in the MAC table, if inquire the inlet in corresponding tunnel, then this message is sent to the inlet in this tunnel, add two layers of head that identify the tunnel that inquires on this heading, then this message is sent to the tunnel destination by the described tunnel that finds, the PE equipment of tunnel destination will receive message and send purpose CE equipment to; If do not find the inlet or the CE equipment entrance in corresponding tunnel, then message be broadcast to other four PE equipment.
If the message that PE equipment receives is to be transmitted by the tunnel by another PE equipment,, then message is not broadcast to other four PE equipment owing to can not E-Packet between each full tunnel that connects.
All PE equipment that the scheme of transmission message needs to belong to same Service Instance between the existing P E equipment connect entirely, when the PE number of devices increases, need to dispose a lot of tunnels on each PE equipment.For example, have 100 with the PE equipment that belongs to same Service Instance, need to build 99 tunnels on each PE equipment, the tunnel total number of setting up on all PE equipment will reach n * (n-1)/2=4950, enormous amount, wherein n is a natural number, and expression belongs to the quantity of the PE equipment of same Service Instance.And, if in the MAC table, can not find out the inlet or the CE equipment entrance in corresponding tunnel behind the message that PE equipment reception CE equipment transmits, then can broadcast replication give other each PE equipment that belongs to same Service Instance, for PE equipment, the pressure that duplicates transmission is very big, and forward efficiency is low.
Summary of the invention
The embodiment of the invention provides between a kind of PE equipment and transmits method of message, and this method can alleviate the transmission of PE equipment and duplicate pressure, improves forward efficiency.
The embodiment of the invention provides the system that transmits message between a kind of PE equipment, and this system can alleviate the transmission of PE equipment and duplicate pressure, improves forward efficiency.
The embodiment of the invention provides a kind of PE equipment, and this equipment can alleviate transmission and duplicate pressure, improves forward efficiency.
Transmit method of message between a kind of PE equipment, comprise the tunnel of a non-full connection in this method in supplier's key bridge traffic engineering networking of transmission message at least, this method comprises:
Receive message, search the inlet or the client's edge C E equipment entrance that identify corresponding tunnel with the purpose medium access control MAC Address and the Service Instance of described message, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects;
If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
Transmit the system of message between a kind of PE equipment, be applied in supplier's key bridge traffic engineering networking;
The PE equipment that this system comprises, be used to receive message, search the inlet or the CE equipment entrance that identify corresponding tunnel with the target MAC (Media Access Control) address and the Service Instance of described message, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, and perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
A kind of PE equipment is applied in supplier's key bridge traffic engineering networking, and this equipment comprises the message receiver module and searches sending module;
Described message receiver module is used to receive message, sends to and searches sending module;
The described sending module of searching, be used to receive the message that transmits by the message receiver module, search the inlet or the CE equipment entrance that identify corresponding tunnel with the target MAC (Media Access Control) address and the Service Instance of described message, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, and perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
From such scheme as can be seen, in the embodiment of the invention, after receiving message, when searching to transmit message less than the inlet in the tunnel of correspondence or CE equipment entrance the time,, will not duplicate each PE equipment that is transmitted in the same Service Instance by message because of comprising the tunnel of a non-full connection in the supplier's key bridge traffic engineering networking that transmits message at least, thereby, what reduced PE equipment duplicates forwarding pressure, and it is low to have improved forward efficiency, has also reduced the tunnel quantity of being built on the PE equipment.
Description of drawings
The message structure schematic diagram of Fig. 1 (a) to (d) for transmitting on the different levels network in the existing Ethernet;
Fig. 2 is the networking structure schematic diagram that transmits message in the prior art between the PE equipment;
Fig. 3 transmits the method for message example flow diagram between the embodiment of the invention PE equipment;
Fig. 4 is the networking structure schematic diagram example that transmits message between the embodiment of the invention PE equipment;
Fig. 5 is the system configuration schematic diagram that transmits message between the embodiment of the invention PE equipment.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in more detail.
Transmit method of message between the embodiment of the invention PE equipment, the tunnel of configuration at least one non-full connection in the PBB-TE networking, this method comprises: after receiving message, search the inlet or the CE equipment entrance in the tunnel corresponding with the target MAC (Media Access Control) address of described message and I-TAG, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects, the tunnel of described connection can comprise the tunnel of full connection, also can comprise the tunnel of non-full connection;
If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
Example below by Fig. 3 is illustrated transmitting method of message between the embodiment of the invention PE equipment, and the example of Fig. 3 may further comprise the steps:
At least the tunnel that comprises a non-full connection in the networking of the transmission message that connects into, the PE equipment at the two ends, tunnel of this non-full connection can connect other the tunnel of full connection or the tunnel of non-full connection more respectively.
Just, include only the tunnel of non-full connection in the networking of transmission message; Perhaps, comprise the tunnel and the tunnel that is connected entirely of non-full connection, the full connection can be determined as required with the non-full number that is connected.Connect in twos between the PE equipment in full the connection, tunnel between the full PE equipment that connects is the tunnel that the level that enabled is cut apart attribute, and the level that enabled is cut apart between the tunnel of attribute and can not be E-Packeted mutually.The attribute tunnel is cut apart for the level of not enabling in tunnel between the PE equipment of non-full connection, and the level of not enabling is cut apart between the tunnel of attribute and can be E-Packeted mutually.The level of not enabling is cut apart the tunnel of attribute and the level that enabled is cut apart between the tunnel of attribute and can be E-Packeted mutually.Preserved the corresponding relation between the inlet in the attribute in the tunnel that is connected with this PE equipment and each tunnel in each PE equipment, when message is sent to a certain PE equipment from the tunnel, this PE equipment just can be known the attribute in tunnel according to the inlet in the tunnel that receives this message in described corresponding relation, when needs with message when a certain tunnel sends out, this PE equipment also can be known the attribute in tunnel according to the inlet in the tunnel that transmits this message in described corresponding relation.
With 5 PE equipment that belong to a Service Instance SI shown in Figure 4 step 301 is illustrated below.Tm-n among the figure (m, n are natural numbers, 1≤m≤5,1≤n≤5) expression connects the tunnel of PEm and PEn.Here, suppose that the PE equipment that belongs to Service Instance SI comprises 5: PE1, PE2, PE3, PE4 and PE5, wherein PE1, PE2 are connected entirely with PE3, tunnel between PE1 and the PE2 is T1-2, tunnel between PE2 and the PE3 is T2-3, and the tunnel between PE1 and the PE3 is T1-3, and T1-2, T2-3 and T1-3 are the tunnels that the level that enabled is cut apart attribute, that is, can not E-Packet mutually between T1-2, T2-3 and the T1-3.
Being connected to non-full connection the between PE2 and the PE4, the tunnel T2-4 that connects PE2 and PE4 is cut apart the tunnel of attribute for the level of not enabling, and in like manner, the tunnel T3-4 between PE3 and the PE5 is the tunnel that the level of not enabling is cut apart attribute.
Like this, after connecting according to Fig. 4, the situation of E-Packeting about each tunnel of Service Instance SI on each PE equipment is:
Among the Service Instance SI on PE1, can not E-Packet mutually between T1-2 and the T1-3.
Among the Service Instance SI on PE2, can not E-Packet mutually between T1-2 and the T2-3, but can E-Packet between T1-2 and the T2-4, can E-Packet between T2-3 and the T2-4.
Among the Service Instance SI on PE3, can not E-Packet mutually between T1-3 and the T2-3, but can E-Packet between T1-3 and the T3-4, can E-Packet between T2-3 and the T3-4.
With respect to PE1, PE2 and the PE3 of full connection, the network layer of PE4 and PE5 has descended one deck, is the PE of lower floor equipment.Here, the PBB-TE networking structure that this networking structure is called stratification.
Similarly, also can on PE4, connect an other full connection again, perhaps PE4 be carried out non-full the connection with other PE equipment; PE1 can also be carried out non-full the connection with other PE equipment, or the like.
The described message that receives can be the message that is sent by CE equipment, also can be the message that other PE equipment are sent to current PE equipment.If the message that sends by CE equipment, this moment message for not comprising the form of two layers of head, just be the message structure of convergence-level shown in Fig. 1 (c), the inlet that sends message to PE equipment according to CE equipment just can be determined the I-TAG of this message.If other PE equipment are sent to the message of current PE equipment, comprised in the message that sign transmits two layers of head in the tunnel of this message, just be the message structure of core layer shown in Fig. 1 (d), comprise I-TAG in two layers of head; This moment, this step also comprised: peel two layers of head on the heading off.
Comprised DA and the I-TAG in the message in the MAC table, and destination is the corresponding relation between the inlet in DA and the tunnel that belongs to described I-TAG, perhaps and the address be corresponding relation between DA and the CE equipment entrance that belongs to described I-TAG.After PE equipment receives message, in the MAC table, inquire about,, specifically comprise following four kinds of dispositions according to different lookup results according to I-TAG and DA:
1) if PE equipment finds the inlet in the tunnel corresponding with the DA of the message that receives and I-TAG in MAC table, and tunnel that the tunnel that finds comes with this message is transmitted not all is the tunnel that the level that enabled is cut apart attribute, the tunnel that the tunnel that just finds comes with this message is transmitted not all belongs to the full tunnel that is connected, then the tunnel mark that finds will be added on the heading, this sign comprises the field of representing B-SA, the field of expression B-DA, the field of expression I-TAG and the field of expression backbone network VLAN ID, sends out from the tunnel that finds.
If PE equipment finds the inlet in the tunnel corresponding with the DA of the message that receives and I-TAG in MAC table, and this message is transmitted by CE equipment, then on heading, add tunnel mark, this sign comprises the field of representing B-SA, the field of expression B-DA, the field of expression I-TAG and the field of expression backbone network VLAN ID, sends out from the tunnel that finds.
If PE equipment finds DA and the corresponding CE equipment entrance of I-TAG with the message that receives in the MAC table, then send message to purpose CE equipment by the CE equipment entrance.
2) if PE equipment finds the inlet in the tunnel corresponding with the DA of the message that receives and I-TAG in MAC table, and the tunnel that the tunnel that finds comes with this message is transmitted all belongs to the full tunnel that is connected, tunnel that the tunnel that just finds comes with this message is transmitted all is the tunnel that the level that enabled is cut apart attribute, does not then send this message by the tunnel that connects.
3) if PE equipment does not find the inlet in the tunnel corresponding with the DA of the message that receives and I-TAG in MAC table, and, the tunnel that this message transmission is come is the tunnel that the level of not enabling is cut apart attribute, the tunnel that just this message is transmitted and come does not belong to the tunnel of full connection, then this message is sent out by the tunnel except that the tunnel that this message transmission is come that connects, perhaps, this message is transmitted by CE equipment, then this message is sent out by the tunnel that connects.
During transmission, add two layers of head on heading, these two layers of heads have represented to transmit the tunnel mark of message, and this sign comprises the field of representing B-SA, the field of expression B-DA, the field of expression I-TAG and the field of expression backbone network VLAN ID.
Such as, when transmitting behind the message that PE2 reception PE4 transmits in the networking structure of Fig. 4, send PE1 and PE3 to.
4) if PE equipment does not find the inlet in the tunnel corresponding with the DA of the message that receives and I-TAG in MAC table, and, the tunnel that this message transmitted and come is the tunnel that the level that enabled is cut apart attribute, the tunnel that just this message is transmitted and come belongs to the tunnel of full connection, then this message is sent to the PE equipment except that full connection that links to each other with current PE equipment.
During transmission, add two layers of head on heading, these two layers of heads have represented to transmit the tunnel mark of message, and this sign comprises the field of representing B-SA, the field of expression B-DA, the field of expression I-TAG and the field of expression backbone network VLAN ID.
Such as, when carrying out the message transmission behind the message that PE2 reception PE1 transmits in the networking structure of Fig. 4, can only send PE4 to.
For 3) and 4) two kinds of situations, PE equipment also can send message to all the CE equipment that belong to same Service Instance that are connected with this PE equipment when carrying out the message transmission, and, message is sent to after the PE equipment of tunnel destination, and the PE equipment of destination is with execution in step 302.
Need to prove that when PE equipment transmitted message by the tunnel, the tunnel that transmits message did not comprise the tunnel that message is transmitted and come.
Below the scheme that transmits message in the prior art and the embodiment of the invention between the PE equipment is compared.
In the prior art, after PE equipment receives the message of CE equipment transmission, if search inlet or CE equipment entrance less than the tunnel of correspondence, message need be sent to other each PE equipment in the same Service Instance, after described other each PE equipment receives message, if find the CE equipment entrance corresponding, then send message to purpose CE equipment by the CE equipment entrance that finds with message.
In the embodiment of the invention, search the inlet or the CE equipment entrance in corresponding tunnel behind the PE equipment reception message, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, perhaps described message is transmitted by CE equipment, then described message is sent to the PE equipment of tunnel destination by the tunnel that connects, if do not find, and, the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent to the PE equipment of tunnel destination by the tunnel except that full connection that connects.The PE equipment of tunnel destination repeats above-mentioned search procedure after receiving message.Till message being sent to purpose CE equipment.As seen, in this case, prior art sends each PE equipment that message once is transmitted in the same Service Instance to purpose CE equipment with message, and the embodiment of the invention sends message to purpose CE equipment after through double or twice above forwarding, like this, that has disperseed PE equipment duplicates forwarding pressure, thereby, what reduced PE equipment duplicates forwarding pressure, has improved forward efficiency.
In the prior art, when finding the inlet in corresponding tunnel behind the PE equipment reception message, directly message is sent to the PE equipment of tunnel destination by the tunnel that finds, the PE equipment of tunnel destination find out with corresponding CE equipment entrance after, send to purpose CE equipment by this CE equipment entrance.For this situation, the processing method of the embodiment of the invention is similar.
By as can be seen above, adopt the scheme that transmits message between the embodiment of the invention PE equipment, what reduced PE equipment duplicates forwarding pressure, and it is low to have improved forward efficiency.
Referring to Fig. 5, for transmitting the system configuration schematic diagram of message between the embodiment of the invention PE equipment, this system applies is in the PBB-TE networking;
The PE equipment that this system comprises, be used to receive message, search the inlet or the CE equipment entrance in the tunnel corresponding with the target MAC (Media Access Control) address of described message and I-TAG, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, and perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
Alternatively, described PE equipment comprises the message receiver module and searches sending module;
Described message receiver module is used to receive message, sends to and searches sending module;
The described sending module of searching, be used to receive the message that transmits by the message receiver module, search the inlet or the CE equipment entrance in the tunnel corresponding with the target MAC (Media Access Control) address of described message and I-TAG, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, and perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
Alternatively, the described sending module of searching comprises the message sending module, be used on heading, adding the tunnel mark that transmits described message, send out by the tunnel that transmits described message then, described sign comprises the field of representing B-SA, the field of expression B-DA, the field of expression I-TAG and the field of expression backbone network VLANID.
Alternatively, described PE equipment comprises the tunnel attribute memory module, is used to preserve the corresponding relation between the inlet in the attribute in the tunnel that is connected with this PE equipment and tunnel, and described attribute comprises the tunnel attribute and the non-full tunnel attribute that is connected of full connection.
Transmit between the embodiment of the invention PE equipment in the scheme of message, comprise the tunnel of a non-full connection in the PBB-TE networking of transmission message at least.Comparison diagram 2 and Fig. 4 will build 4 tunnels on each PE equipment among Fig. 2, and PE4 and PE5 go up and only need build 1 tunnel among Fig. 4, PE2 and PE3 only go up need build 3 tunnels, and PE1 is last only need to build 2 tunnels, 10 tunnels of having built together among Fig. 2, and only built 5 tunnels among Fig. 4, saved 5 tunnels.Embodiment of the invention scheme has reduced the tunnel quantity of being built on the PE equipment, has saved the tunnel resource that takies.And, adopt embodiment of the invention scheme, what reduced PE equipment duplicates forwarding pressure, and it is low to have improved forward efficiency.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. transmit method of message between a Provider Edge PE equipment, it is characterized in that, at least comprise the tunnel of a non-full connection in supplier's key bridge traffic engineering networking of transmission message, the attribute tunnel is cut apart for the level of not enabling in the tunnel of non-full connection, and this method comprises:
Receive message, search the inlet or the client's edge C E equipment entrance that identify corresponding tunnel with the purpose medium access control MAC Address and the Service Instance of described message, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects;
If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
2. the method for claim 1 is characterized in that, after the described inlet or CE equipment entrance of searching the tunnel corresponding with the target MAC (Media Access Control) address of described message and Service Instance sign, this method also comprises:
If find the inlet in corresponding tunnel, and the tunnel that the tunnel that finds comes with described message is transmitted not all belongs to the full tunnel that is connected, and perhaps described message is then sent out described message by the transmission of CE equipment by the described tunnel that finds;
If find the inlet in corresponding tunnel, and the tunnel of the tunnel that finds with described message is transmitted all belong to the full tunnel that is connected, and then do not send described message by the described tunnel that finds.
3. the method for claim 1 is characterized in that, the described message of reception is transmitted by the tunnel of full connection or the tunnel of non-full connection, and after the described reception message, this method comprises: peel two layers of head on the heading off.
4. the method for claim 1 is characterized in that, described described message is sent out by the tunnel that connects comprises:
After adding the tunnel mark of described connection on the heading, tunnel by described connection sends out, and described sign comprises the field of expression tunnel source address, the field of expression tunnel destination address, the field that the expression Service Instance identifies and the field of representing key VLAN ID.
5. method as claimed in claim 2, it is characterized in that, described described message is sent out by the described tunnel that finds comprises: after adding the described tunnel mark that finds on the heading, send out by the described tunnel that finds, described sign comprises the field of expression tunnel source address, the field of expression tunnel destination address, the field that the expression Service Instance identifies and the field of representing key VLAN ID.
6. transmit the system of message between the PE equipment, be applied to it is characterized in that in supplier's key bridge traffic engineering networking,
The PE equipment that this system comprises, be used to receive message, search the inlet or the CE equipment entrance that identify corresponding tunnel with the target MAC (Media Access Control) address and the Service Instance of described message, if do not find, and the tunnel that described message transmission is come does not belong to the tunnel of full connection, and the attribute tunnel is cut apart for the level of not enabling in the tunnel of non-full connection, perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects;
Described PE equipment comprises the message receiver module and searches sending module;
Described message receiver module is used to receive message, sends to and searches sending module;
The described sending module of searching, be used to receive the message that transmits by the message receiver module, search the inlet or the CE equipment entrance that identify corresponding tunnel with the target MAC (Media Access Control) address and the Service Instance of described message, if do not find, and, the tunnel that described message transmission is come does not belong to the tunnel of full connection, and perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
7. system as claimed in claim 6, it is characterized in that, the described sending module of searching comprises the message sending module, be used on heading, adding the tunnel mark that transmits described message, send out by the tunnel that transmits described message then, described sign comprises the field of expression tunnel source address, the field of expression tunnel destination address, the field that the expression Service Instance identifies and the field of representing key VLAN ID.
8. a PE equipment is applied to it is characterized in that this equipment comprises the message receiver module and searches sending module in supplier's key bridge traffic engineering networking;
Described message receiver module is used to receive message, sends the described sending module of searching to;
The described sending module of searching, be used to receive the message that transmits by the message receiver module, search the inlet or the CE equipment entrance that identify corresponding tunnel with the target MAC (Media Access Control) address and the Service Instance of described message, if do not find, and the tunnel that described message transmission is come does not belong to the tunnel of full connection, and the attribute tunnel is cut apart for the level of not enabling in the tunnel of non-full connection, perhaps described message is transmitted by CE equipment, then described message is sent out by the tunnel that connects; If do not find, and the tunnel that described message transmission is come belongs to the tunnel of full connection, then described message is sent out by the tunnel except that full connection that connects.
9. equipment as claimed in claim 8, it is characterized in that, the described sending module of searching comprises the message sending module, be used on heading, adding the tunnel mark that transmits described message, send out by the tunnel that transmits described message then, described sign comprises the field of expression tunnel source address, the field of expression tunnel destination address, the field that the expression Service Instance identifies and the field of representing key VLAN ID.
10. equipment as claimed in claim 8, it is characterized in that, this equipment comprises the tunnel attribute memory module, is used to preserve the corresponding relation between the inlet in the attribute in the tunnel that is connected with this equipment and tunnel, and described attribute comprises the tunnel attribute and the non-full tunnel attribute that is connected of full connection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101987608A CN101459592B (en) | 2007-12-12 | 2007-12-12 | Method, system and equipment for transmitting packets between supplier edge devices |
| PCT/CN2008/073252 WO2009076839A1 (en) | 2007-12-12 | 2008-11-28 | A packet transmission method, system and device between pe devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101987608A CN101459592B (en) | 2007-12-12 | 2007-12-12 | Method, system and equipment for transmitting packets between supplier edge devices |
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| Publication Number | Publication Date |
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| CN101459592A CN101459592A (en) | 2009-06-17 |
| CN101459592B true CN101459592B (en) | 2011-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101987608A Expired - Fee Related CN101459592B (en) | 2007-12-12 | 2007-12-12 | Method, system and equipment for transmitting packets between supplier edge devices |
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| Country | Link |
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| CN (1) | CN101459592B (en) |
| WO (1) | WO2009076839A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385344A (en) * | 2016-09-05 | 2017-02-08 | 杭州华三通信技术有限公司 | Message monitoring method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299864B (en) * | 2011-10-08 | 2014-11-26 | 杭州华三通信技术有限公司 | Method and device applied to message forwarding of two-layer virtual private network |
| CN103067280B (en) * | 2012-12-26 | 2016-06-08 | 华为技术有限公司 | Message processing method and device |
| CN104780090B (en) * | 2015-04-27 | 2018-10-26 | 新华三技术有限公司 | Method, apparatus, the PE equipment of VPN multicast transmissions |
| US9973389B2 (en) * | 2015-12-21 | 2018-05-15 | Juniper Networks, Inc. | Propagating leaf count information to facilitate switching between a segmented tunnel and a non-segmented tunnel |
| CN111835736B (en) * | 2020-06-29 | 2023-04-25 | 苏州雄立科技有限公司 | Message transmission method and system |
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| CN101083611A (en) * | 2006-05-30 | 2007-12-05 | 中兴通讯股份有限公司 | Apparatus for using color identification L-LSP tunnel packet forwarding priority |
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| CN1157902C (en) * | 2001-06-18 | 2004-07-14 | 华为技术有限公司 | Ip address mapping and transmitting method for non-broadcast multipath access network |
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| CN1536832A (en) * | 2003-04-04 | 2004-10-13 | 华为技术有限公司 | Method for processing extra-long message in two-layer virtual special-purpose network |
| CN101083611A (en) * | 2006-05-30 | 2007-12-05 | 中兴通讯股份有限公司 | Apparatus for using color identification L-LSP tunnel packet forwarding priority |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106385344A (en) * | 2016-09-05 | 2017-02-08 | 杭州华三通信技术有限公司 | Message monitoring method and device |
| CN106385344B (en) * | 2016-09-05 | 2019-09-06 | 新华三技术有限公司 | A kind of monitoring messages method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101459592A (en) | 2009-06-17 |
| WO2009076839A1 (en) | 2009-06-25 |
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