CN1996883A - A network and service framework for Ethernet load network management - Google Patents

Abstract

This invention discloses one Ethernet load network and business rack, which sends network to manage operator key points by Ethernet PBT or Minim technique, and which comprises the following parts: Ethernet physical layer; PBT channel layer and customer business layer of three independent logic layers. This invention also provides one method to form user business end to end in network rack.

Description

A kind of network and business framework that is used for the ether load network management

Technical field

The present invention relates to ether MinM (Mac in Mac) and operator backbone transmission (PBT, ProviderBackbone Transport) network that is used for the ether load network management and the business framework of network are particularly transmitted in Network Management field based on the operator backbone of the structure of ether MinM and PBT technology.

Background technology

MinM (Mac in Mac) is the defined provider backbone bridging transmission technology of IEEE 802.1ah standard, its main thought is at two Provider Edge (PE of carrier network, Provider Edge) sets up a virtual bidirectional tunnel between the equipment, utilize Mac address stable in the carrier network and VLAN (VLAN, Virtual Local Area Network) identify bidirectional tunnel and, thereby the unsteadiness of fundamentally having eliminated client's side network is to influence that carrier network caused as the key assignments of transmitting of Ether frame.

Ether Minm network design level and network architecture be as shown in Figure 1: two bridge network (PBN of operator, Provider Bridge Network) passes through operator backbone bridge network (PBBN between, Provider Backbone Bridge Network) connecting, is the 802.1ad interface of standard between PBN and the PBBN.Client local area network (LAN) (Client LAN) links to each other with PBN.

Figure 2 shows that existing ether MinM network design level and network architecture. representative of consumer side local area network (LAN) (Customer LAN) among the figure,  represents access to LAN (Access LAN), Represent operator's local area network (LAN) (Provider LAN),  represents edge local area network (LAN) (Boundary LAN),  represents key local area network (LAN) (Backbone LAN), CE representative of consumer edge device (Customer EdgeEquipment), PB represents operator's bridge (Provider Bridge), PBB represents provider backbone bridging (Provider Backbone Bridge), and PEB represents operator edge bridge (Provider EdgeBridge).PBBN among this figure partly is the provider backbone bridging based on the MinM technology that IEEE 802.1ah standard is concerned about, and the operator's metropolitan area bridge based on the QinQ technology that PBN partly is an IEEE 802.1ad standard to be concerned about.QinQ wherein is the defined operator of an IEEE 802.1ad standard bridge.

Fig. 3 is that existing Ether frame passes PBN and PBBN network time frame structural change process schematic diagram.

When 1) the IEEE802.1Q Ether frame of client's side Netowrk tape user VLAN ID (Customer VLAN Tag) or 802.3 common Ether frames enter the PE equipment of PBN network, PBN network PE equipment is stamped professional VLAN ID (Service VLAN Tag according to mapping ruler for this frame, it also can be abbreviated as S-VLAN Tag) be IEEE 802.1ad Ether frame, this Service VLAN Tag is designated as S-TAG in the drawings.

C-DA among Fig. 3 (Customer Destination Address) is used for the MAC Address of identifying user side network purpose bridge device; C-SA is used for the Mac address of identifying user side network source bridge device; C-TAG is the sign client's of IEEE 802.1D standard definition Vlan Tag; Client Data is used to represent the user data that transmitted, and C-FCS represents verification.

2) IEEE 802.1ad Ether frame is looked into to transmit and is transmitted according to " S-VLAN Tag+ customer network purpose MAC " in the PBN network, and when entering the PE equipment of PBBN network, PE equipment carries out two-layer mapping to Ether frame:

Ground floor: the mapping ruler according to default is mapped to a business (service) example with the 802.1ad Ether frame---stamp the I-Tag sign at the 802.1ad frame head, in the PBBN network according to I-Tag identifying user business; Above-mentioned I-Tag sign is the numerical value of one at least 20 bits, is used to identify a srvice instance of PBN network, also comprises information such as service priority and qos policy simultaneously.

The second layer: the mapping ruler according to default is mapped to the MinM frame with the customer service example---and stamp the VLAN Tag (B-VLAN Tag) of PBBN network again and increase the MAC Address of PBBN network source PE equipment and the MAC Address of PBBN network purpose PE equipment at customer service example frame frame head.

3) the MinM frame is looked into to transmit and is transmitted according to " MAC Address of B-VLAN Tag+PBBN network purpose PE equipment " in the PBBN network.Because the B-VLAN Tag+ purpose PE device mac address of PBBN network will be stable with respect to the S-VLAN Tag+ client side network purpose MAC of client's side network many, so use instability that the backbone network of MinM technical construction eliminated user network to influence that carrier network caused.

In MinM frame shown in Figure 3:

B-DA is used to identify the purpose PE equipment of PBBN network; B-SA is used to identify the source PE equipment of PBBN network; B-tag is similar to S-tag among the 802.1ad, is used to identify the backbone network tunnel.

The essence of MinM technology is to set up a virtual bidirectional tunnel between two edge devices, target MAC (Media Access Control) address (the B-DA)+B-TAG unique identification of each direction in tunnel in the PBBN network.The virtual circuit that identifies in the tunnel with I-TAG is the customer service example.B-TAG is opaque to intermediate node, and B-DA+B-TAG constitutes the key assignments of transmitting.

MinM transmits by MAC address learning and obtains, it is consistent that the transmitting of this and common Ethernet creates a mechanism, so MinM need not change the software and hardware of intermediate node, under the enough situation of buffer memory (Buffer) length, MinM technology and existing Ethernet switch are compatible.

Itself there is following defective in the MinM technology:

Defective 1: do in large scale network such as state/economize and do, because causing transmitting more, network node becomes big, also cause simultaneously the unpredictability of network behavior to strengthen, add odjective causes such as the immature and network self-healing of ether OAM technology is indifferent, make MinM still can not shake multiprotocol label switching (MPLS, Multiprotocol Label Switch) in large scale network is used dominance.

Defective 2: in the application of MAN backbone network and Access Network, compare with the QinQ technology, MinM keeps apart customer network and carrier network, makes carrier network no longer be subjected to the interference of customer network, and stability of network is greatly improved.But, do not implement the protection of traffic engineering and channel level simultaneously and switch, so still there is uncertain risk in the behavior of network owing to still adopt the Mac address learning to set up to transmit and kept aging mechanism.

PBT technology thus has been born.Referring to Fig. 4, it is the network architecture of existing P BT.The PBT technical characterictic is as follows:

1. adopt towards connecting thought and set up transfer path in advance, adopt B-DA+B-TAG, close self study, abandon unknown message and broadcasting packet as the key assignments forwarding of tabling look-up by control plane.

2. adopt a B-DA+B-SA+B-VTAG sign two-way transfer path (being similar to the LSP of MPLS).

3. adopt an I-Tag sign Business Stream (being similar to the PW of MPLW).

4. dispose the business of foundation by management plane.

The improvement that the PBT technology is done aspect traffic engineering is mainly as follows:

1. adopt primary channel protection in 1: 1 between source, the place, primary channel uses different B-VLAN Tag signs.

2. adopt the connectedness of the CC detection primary channel of IEEE 802.1ag, when service aisle detects fault, start protection and switch, automatically switch on the protection passage.

As seen, the PBT technology mainly shows the difference of MinM technology:

Difference 1:PBT technology has only been utilized encapsulation technology and the forwarding mechanism of MinM, has abandoned some core technologies of Ethernet: closed self study; Abandon unknown message and broadcasting packet; Close forwarding-table item aging mechanism etc.

Difference 2:PBT technology basic starting point be wish in Ethernet, to provide simulation towards connecting the point-to-point service channel of promptly determining route; and provide towards the protection of passage switch, mechanism such as traffic engineering makes stability of network and predictability strengthens, this network for uncertain route can't be accomplished.

More than describe MinM, PBT technique background knowledge and relevant traffic criteria in detail, also do not having ripe standard aspect the service management of PBT and MinM at present.Have only Nortel (NORTEL) and BT (Britain Telecom) on Tele Management Forum (TMF), to submit to one piece " FeatureDescription-PBT " (" characteristic description-PBT ") motion to describe the regulatory requirement and the management information framework of PBT technology at present.This framework as shown in Figure 5, from this framework as can be seen, PBT passage (PBTTunnel) is composed in series by the Singleton PBT FDFr in each single station equipment, and the client layer business adopts different basin segment (FlowDomain Fragment, it also is abbreviated as FDFr) to come modeling in the initial and end PE of PBT Tunnel.

This shows that there is following shortcoming in this framework:

Shortcoming 1:PBT Tunnel is composed in series by the Singleton PBT FDFr in each single station equipment, rather than form by the matrix basin segment (Matrix FDFr) in FDFr end to end and the single station, there is not well to embody the annexation of PBT passage this end-to-end (E2E).Such framework is difficult to calculate PBT passage path end to end in the webmaster aspect, simultaneously with MEF, ITU-T in partly also some discrepancy of Flow Domain of relevant ether standard.

Shortcoming 2: the client layer business adopts different FlowDomainFragment to come modeling in the initial and end PE of PBT Tunnel, does not embody the end-to-end characteristics of customer service in the PBT bearer network, and it is very difficult to cause professional route to be calculated.

Shortcoming 3: do not embody the protection relation of PBT primary channel in the framework, be difficult to calculate the work route of customer service.

Shortcoming 4: do not have well to embody the logical level relation between client's operation layer, PBT channel layer and the ether physical layer.

Summary of the invention

In view of this; the object of the present invention is to provide ether PBT or MinM bearer network network and business framework; with the protection relation that can represent in logic hierarchical relationship of ether bearer network, passage clearly and customer service and passage annexation end to end, be convenient to the route that management system is calculated customer service and PBT passage simultaneously.

Technical solution of the present invention comprises:

A kind of network and business framework that is used for the ether load network management, the operator backbone that is used to manage based on ether PBT or MinM technique construction transmits network, and this framework comprises: client's operation layer, channel layer and connectionless networks physical layer, wherein,

Described connectionless networks physical layer, be used to receive the user traffic flow that enters PBT or MinM bearer network from source end client side network, it is sent into client's operation layer handles, and receive from the user traffic flow of channel layer through adaptation processing, it is transmitted into destination client side network from PBT or MinM bearer network;

Described client's operation layer, the channel selecting relative users srvice instance I-TAG flow point that is used for work at present in the mapping relations of and channel service example professional and the channel layer according to predetermined user, for after described user traffic flow stamps customer service instance identification I-TAG, send to channel boundary flow point corresponding with it in the channel layer by the selected channel service exemplary stream user traffic flow of naming a person for a particular job; Reception is from the customer service example of channel layer, is forwarded to the connectionless networks physical layer after it is divested customer instance sign I-TAG;

Described channel layer, be used for receiving the customer service example by source end channel boundary flow point, for after it stamps the source, Mac address, place and VLAN sign of passage, be sent to destination channel boundary flow point by the work at present passage, after being the described user traffic flow source that divests passage, Mac address, place and VLAN sign by destination channel boundary flow point, be forwarded to client's operation layer.

It is the basin Flow Domain of respective channel layer that the nothing that is included in described connectionless networks physical layer network side connects the zone that physics destination node CPTP formed; It is the basin Flow Domain of corresponding client's operation layer that the nothing that is included in described connectionless networks physical layer client side connects the zone that physics destination node CPTP and channel layer channel boundary flow point Flow Point formed.

Comprise in the described channel layer:

The border flow point Edge-FP of representative of consumer srvice instance flow channel, it is that network side at PBT or MinM network boundary network element does not have and connects the abstract flow point FlowPoint that comes out on the physics destination node CPTP;

Represent interior PBT of single network element or MinM Frame to transmit the matrix basin segment MatrixFlow Domain Fragment of relation, sourcesink flow point FlowPoint in the non-border network element of a passage of its related composition is used for the route calculating of passage;

What be used to carry the customer service example had 1: 1 or the two passes of 1+1 protection relation; Described passage uses basin segment Flow Domain Fragment modeling end to end; The protection relation of passage adopts the protection group PG modeling of SNCP SNCP; The channel boundary flow point Edge-FP in the network element of bearer network border in every passage association, and matrix basin segment MFDFr in the network element of non-border and flow point Flow Point.

Described client's operation layer comprises:

The border flow point Edge-FP of representative of consumer business, it is that user side at PBT or MinM network boundary network element does not have and connects the abstract flow point Flow Point that comes out on the physics destination node CPTP;

Be used for identifying the flow point ITag-FP of a certain particular user srvice instance of passage, it respectively has one on the flow point Edge-FP of the sourcesink end border of channel layer primary channel;

Corresponding customer service example, have two at least at the matrix basin of client's operation layer segment MFDFr, be respectively applied for the flow point FP of representative of consumer business in expression PBT or MinM bearer network source, border, the place network element and represent mapping relations between the flow point ITag-FP of srvice instance in the passage;

Corresponding customer service example, there is one at the basin of client's operation layer segment Flow DomainFragment, be used for representing the end-to-end annexation of user traffic flow in ether PBT or MinM bearer network that be associated with customer service example of passage, in its associated source, border, the place network element flow point Flow Point of representative of consumer business and representative of consumer professional with passage in the MFDFr of srvice instance mapping relations.

The present invention compares with prior art, and its key is newly to have set up a kind of ether PBT or MinM bearer network network and business framework, thereby the present invention has following advantage:

Advantage 1: channel layer and client's operation layer logically are separated into two relatively independent FlowDomain, and are passage and srvice instance independent modeling on the Flow of own logic Domain.This makes the variation of channel layer such as fault not switch can influence client's operation layer, otherwise the variation of client's operation layer can not influence channel layer yet.

Advantage 2: primary channel adopts basin segment Flow Domain Fragment end to end to add that the matrix basin segment Matrix Flow Domain Fragment in each single station equipment comes modeling in the channel path respectively, be similar to that pure connection-oriented SDH VC4 passage connects with subnet end to end and each single station in interconnection modeling.So not only well embodied in the passage annexation end to end, and made the webmaster aspect calculate passway by very simple.In addition, utilize a basin segment FlowDomain Fragment essence of coming to have embodied for channel modeling is extraordinary passage end to end: a basin segment Flow Domain Fragment among the same basin Flow Domain, this and standards such as MEF, ITU-T are in full accord to the definition of basin Flow Domain and basin segment Flow Domain Fragment.

Advantage 3: the teleservice of an I-Tag sign of customer service layer adopts a basin segment FlowDomain Fragment to come modeling, and using end to end as a VC12 2M subscriber line circuit in the SDH VC4 passage, subnet connects modeling.The end-to-end feature that this has well embodied the customer service of I-Tag sign makes the end-to-end path of a customer service of webmaster aspect calculating very simple simultaneously.

Also perfectly embodied channel layer in addition and can regard customer service layer basin FlowDomain in logic as, the end-to-end ether srvice instance of an I-Tag sign is a basin segment Flow Domain Fragment among the FlowDomain of this channel layer basin.

Advantage 4: primary channel protection relation adopts the modeling of connection-oriented SNCP (SNCP) thought, makes to calculate in full accord towards the end-to-end route calculating of connectionless customer service with connection-oriented subscriber line circuit.

As seen, application the present invention has represented the logical level relation of ether bearer network, the protection relation of passage clearly, and the end-to-end annexation of customer service layer and channel layer, is convenient to webmaster simultaneously and carries out customer service and channel layer route calculation.

Description of drawings

Fig. 1 is existing ether MinM network design level and network architecture;

Fig. 2 is existing ether MinM network design level and network architecture;

Fig. 3 is that existing Ether frame passes PBN and PBBN network time frame structural change process schematic diagram;

Fig. 4 is the network architecture of existing P BT;

Fig. 5 is regulatory requirement and the management information framework that the PBT technology is described in " FeatureDescription-PBT " motion;

Fig. 6 uses PBT network of the present invention and service management framework;

Fig. 7 be according to an embodiment of the invention user traffic flow in framework shown in Figure 6 the path and the PBT network to its processing procedure;

Fig. 8 a～d Ether frame according to an embodiment of the invention passes PBN and PBBN network time frame structural change process schematic diagram.

Embodiment

As previously mentioned: the PBT technology has been utilized encapsulation technology and the forwarding mechanism of ether MinM, is intended in Ethernet falseface to connecting the end-to-end service passage of promptly determining route, and provides towards the protection of passage and switch.It is in full accord that connection-oriented technology of the thought of this PBT of foundation passage and application of pure such as SDH set up the thought of VC4 passage, the ITU-T elaboration that G.805 standard is detailed the connection oriented network road idea about modeling and relevant atomic function framework is provided.

But utilize ether PBT technology and SDH technology to set up end-to-end passage has essence again at technological layer difference: the 1) tunnel that is based on packet switch that utilizes ether PBT technology to set up, the unpromising this tunnel of network is allocated resource in advance.The competition to resource is exclusive between the different passages in list is stood, and employing is looked into Mac and transmitted the mode of looking for port when being the Ether frame addressing simultaneously in single station.What 2) utilize that the SDH technology sets up is pure end-to-end passage, and network is its reserved resource.In single station, be the break-through of SDH frame by pre-configured interconnection.This explanation ether PBT network is said the connectionless networks that also is based on packet switch from technological essence, the ITU-T elaboration that G.809 standard is detailed towards the idea about modeling on connectionless network road and the atomic function framework of being correlated with is provided.

In sum: the network of using ether PBT technology is a kind ofly to use for reference connection-oriented thought, use the virtual connection network of setting up towards connectionless ether technology.So can use for reference connection-oriented G.805 idea about modeling, use and set up PBT network and service management framework as shown in Figure 6 towards connectionless G.809 atomic function framework at the Ethernet of PBT technology.

Among Fig. 6

Represent flow point (Flow Point),

Represent border flow point (Edge FlowPoint).

The bottom shown in Figure 6 is the connectionless networks physical layer, the physical layer of its corresponding ether PBT network.Wherein four diamonds are represented 4 network elements respectively, and each network element contains 2～3 ether ports, and they all belong to same basin (Flow Domain).Connecting line in this layer between the network element ether port is that topology connects (Topological Link).

The intermediate layer correspondence be the channel layer of ether PBT network, it is the abstract logical layer that comes out on ether physical layer basis, this logical layer is used to describe PBT passage and the component of passage such as the hierarchical relationship between border flow point (Edge-FP, Edge Flow Point), PBT-FP and the ether physical layer end to end.With respect to client's operation layer of top layer, the channel layer of PBT network can be regarded customer service basin (Flow Domain) in logic as

Edge-FP in the channel layer is the border flow point (Flow Point) of PBT passage, and it is by the abstract destination node that comes out of the network side ether physical port of PBT network boundary network element; PBT-FP is the non-border flow point of PBT passage, and it is to connect physics destination node (CPTP) in the nothing of the non-border of PBT network network element to go up abstract flow point of coming out.

Have again, matrix basin segment (MFDFr in this channel layer, Matrix Flow DomainFragment) be in the network element of the non-border of PBT network with a logic matrix FDFr that the PBT passage is relevant, its association in the network element of non-border and all PBT FP that the PBT passage is relevant, and it is used for PBT passage route calculation.

PBT Active/Standby Tunnel in the channel layer represents active and standby PBT passage respectively, uses FDFr modeling end to end: MFDFr and the PBT-FP in the Edge-FP in the network element of border, the non-border network element in the FDFr association in every PBT passage.This has also embodied the end-to-end characteristics of PBT channel crosses PBT network.

PG1/2 in the channel layer represents the Edge-FP protection group at active and standby PBT passage two ends respectively, and this protection group has embodied the protection relation between the active and standby PBT passage.

Top layer shown in Figure 6 is client's operation layer, and it is the abstract logical layer that comes out on PBT channel layer basis.This logical layer is used for describing the mapping relations between the srvice instance that is carried on the PBT passage customer service and customer service and PBT passage end to end.

Edge-FP in this client's operation layer is the border flow point of representative of consumer business, and it is that user side by PBT network boundary network element does not have and connects physics destination node (CPTP) and go up the abstract destination node that comes out; ITag-FP is the abstract flow point that is used for identifying a certain particular user srvice instance of PBT passage that comes out on PBT channel layer Edge-FP, respectively has one on the sourcesink end Edge-FP of active and standby PBT passage.

Two MFDFr in client's operation layer are respectively applied for the Flow Point of representative of consumer business in expression PBT network source, border, the place network element and represent mapping relations between the ITag-FP of srvice instance in the PBT passage.

Client FDFr (I-SID=x) in this client's operation layer is used for representing the end-to-end relation of a customer service (corresponding PBT passage customer instance x) in ether PBT network, the customer instance FlowPoint in Flow Point of its related sourcesink two ends representative of consumer business and the representative PBT passage corresponding with applied business.

Referring to Fig. 6, relation shown in it between three layers is: the Ethernet physical layer is the Flow Domain of ether PBT network channel layer, the logical channel of expression PBT network end-to-end is structured in the zone of Ethernet physical layer, and the data flow in the passage flows in this zone; Ether PBT network channel layer is that Flow Domain, the while of client's operation layer of PBT network also is the service layer of client's operation layer, and its supporting user business data flow flows in the PBT passage.

From framework shown in Figure 6 as can be seen, because the MinM frame only need be done the operation that increases and peel off frame head at the two ends of channel layer, in whole passage, do not need to do again any operation, thereby situation about composing in series with respect to the Singleton PBT FDFr in each single station equipment, not only realize simply, and compatible mutually with existing ether administrative standard.Have again, exactly because also adopted framework as shown in Figure 6, thereby its source, Su Duan fix, thereby route is calculated easily.

Shown in Figure 7 be according to an embodiment of the invention user traffic flow in framework shown in Figure 6 the path and the PBT network to its processing procedure.

The position 1 of Digital ID and position 8 are the sourcesink position of ether PBT network carrying customer service among the figure, customer service current through line is in logic represented in wherein thick double dot dash line, and the heavy line in the ether physical layer is represented the current through line of customer service on physical equipment.

Among the figure shown in the position 1 is the customer service that flows into the PBT network from the end subscriber network of source, supposes it is common IEEE 802.1ad frame, and its structure is referring to Fig. 8 a.

Will be when customer service is flowed through position 2 according to predetermined user professional and the mapping relations of PBT channel service example and the PBT channel selecting position 3 or 3 ' of work at present, so the customer service position 3 of flowing through in PBT main channel when supposing the work at present passage.3 places will stamp customer service example I-Tag sign for User traffic frame in the position, and this moment, user's frame structure was referring to Fig. 8 b.

To stamp source, the place sign of PBT passage for User traffic frame when customer service is flowed through position 4, the source of this passage, place sign comprise Mac address and B-VLAN, and this moment, user's frame structure was referring to Fig. 8 c.

User traffic flow will divest source, place Mac and the B-VLAN of PBT passage when flowing through position 5 in the PBT passage, this moment, user's frame structure was referring to Fig. 8 d.

Above-mentioned position 4 and position 5 are equivalent to the source and destination end flow point of PBT passage.

To be divested customer service example I-Tag sign when user traffic flow flows through position 6,7 and 8 be transferred the PBT network according to the sign of user's Ether frame itself such as VLAN Tag from the position then, arrived the destination Customer Premises Network again.

In addition, when in network management system, calculating the end-to-end path of a business of customer service layer or a passage of channel layer, only need from the basin segment of representing this srvice instance or PBT passage (FDFr, FlowDomainFragment) and all flow points that inquire its association among the related MFDFr can form path end to end.

Because ether bearer network network that the present invention realized and business framework are based on ITU-T, the relevant criterion of TMFMTNM/MTOSI and MEF, and the PBT technology derives from MinM, so that network struction of the present invention not only can be applied in PBT is technical, can also be applied to the MinM network equally.Below only being that example describes based on the PBT technology.

The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.All any modifications of being done within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.

Claims (4)

1, a kind of network and business framework that is used for the ether load network management, the operator backbone that is used to manage based on ether PBT or MinM technique construction transmits network, it is characterized in that this framework comprises: client's operation layer, channel layer and connectionless networks physical layer, wherein

Described connectionless networks physical layer, be used to receive the user traffic flow that enters PBT or MinM bearer network from source end client side network, it is sent into client's operation layer handles, and receive from the user traffic flow of channel layer through adaptation processing, it is transmitted into destination client side network from PBT or MinM bearer network;

Described client's operation layer, the channel selecting relative users srvice instance I-TAG flow point that is used for work at present in the mapping relations of and channel service example professional and the channel layer according to predetermined user, for after described user traffic flow stamps customer service instance identification I-TAG, send to channel boundary flow point corresponding with it in the channel layer by the selected channel service exemplary stream user traffic flow of naming a person for a particular job; Reception is from the customer service example of channel layer, is forwarded to the connectionless networks physical layer after it is divested customer instance sign I-TAG;

Described channel layer, be used for receiving the customer service example by source end channel boundary flow point, for after it stamps the source, Mac address, place and VLAN sign of passage, be sent to destination channel boundary flow point by the work at present passage, after being the described user traffic flow source that divests passage, Mac address, place and VLAN sign by destination channel boundary flow point, be forwarded to client's operation layer.

2, network according to claim 1 and business framework is characterized in that, the nothing that is included in described connectionless networks physical layer network side connects the basin Flow Domain of the regional respective channel layer that physics destination node CPTP formed; Be included in the nothing connection physics destination node CPTP of described connectionless networks physical layer client side and the basin Flow Domain of regional corresponding client's operation layer that channel layer channel boundary flow point Flow Point is formed.

3, network according to claim 1 and business framework is characterized in that, comprise in the described channel layer:

The border flow point Edge-FP of representative of consumer srvice instance flow channel, it is that network side at PBT or MinM network boundary network element does not have and connects the abstract flow point Flow Point that comes out on the physics destination node CPTP;

Represent interior PBT of single network element or MinM Frame to transmit the matrix basin segment Matrix Flow Domain Fragment of relation, sourcesink flow point Flow Point in the non-border network element of a passage of its related composition is used for the route calculating of passage;

What be used to carry the customer service example had 1: 1 or the two passes of 1+1 protection relation; Described passage uses basin segment Flow Domain Fragment modeling end to end; The protection relation of passage adopts the protection group PG modeling of SNCP SNCP; The channel boundary flow point Edge-FP in the network element of bearer network border in every passage association, and matrix basin segment MFDFr in the network element of non-border and flow point Flow Point.

4, network according to claim 1 and business framework is characterized in that, described client's operation layer comprises:

The border flow point Edge-FP of representative of consumer business, it is that user side at PBT or MinM network boundary network element does not have and connects the abstract flow point Flow Point that comes out on the physics destination node CPTP;

Be used for identifying the flow point ITag-FP of a certain particular user srvice instance of passage, it respectively has one on the flow point Edge-FP of the sourcesink end border of channel layer primary channel;

Corresponding customer service example, have two at least at the matrix basin of client's operation layer segment MFDFr, be respectively applied for the flow point FP of representative of consumer business in expression PBT or MinM bearer network source, border, the place network element and represent mapping relations between the flow point ITag-FP of srvice instance in the passage;

Corresponding customer service example, there is one at the basin of client's operation layer segment Flow DomainFragment, be used for representing the end-to-end annexation of user traffic flow in ether PBT or MinM bearer network that be associated with customer service example of passage, in its associated source, border, the place network element flow point Flow Point of representative of consumer business and representative of consumer professional with passage in the MFDFr of srvice instance mapping relations.

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