CN102255805B - Message transmission method, message forwarding method and devices - Google Patents

Message transmission method, message forwarding method and devices Download PDF

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Publication number
CN102255805B
CN102255805B CN201110188351.6A CN201110188351A CN102255805B CN 102255805 B CN102255805 B CN 102255805B CN 201110188351 A CN201110188351 A CN 201110188351A CN 102255805 B CN102255805 B CN 102255805B
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message
path information
label
egress
ingress
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CN102255805A (en
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徐占熬
刘长宝
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201110188351.6A priority Critical patent/CN102255805B/en
Publication of CN102255805A publication Critical patent/CN102255805A/en
Priority to PCT/CN2012/073088 priority patent/WO2012149846A1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/50—Routing or path finding of packets in data switching networks using label swapping, e.g. multi-protocol label switch [MPLS]

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

The embodiment of the invention provides a message transmission method, which is characterized by comprising that: an incoming node of a first pseudo wire (PW) receives a first message; the incoming node of the first PW encapsulates the first message into a second message, wherein a multiprotocol label switching (MPLS) label of the second message carries information about a path for forwarding the first message out of the first PW; and the incoming node of the first PW transmits the second message by the first PW. In addition, the embodiment of the invention also provides a corresponding device, a message forwarding method and the corresponding device. By the message transmission method, the message forwarding method and the devices provided by the embodiment of the invention, the problems of forwarding path errors caused by errors of an incoming label map (ILM) of an outgoing node of a PW can be solved.

Description

Send the method for message, the method E-Packeted and device
Technical field
The embodiment of the present invention relates to the communication technology, particularly relates to the method sending message, the method E-Packeted and device.
Background technology
Pseudo-line (pseudo wire, PW) refers in the upper simulation primary business of packet switching network (Packet Switched Network, PSN).This primary business can be asynchronous transfer mode (AsynchronousTransfer Mode, ATM), frame relay, Ethernet, low speed time division multiplexing or Synchronous Optical Network (Synchronous Optical Network, SONET), and PSN can be multiprotocol label switching (Multiprotocol Label Switching, MPLS), Internet Protocol (Intemet Protocol, or Layer 2 Tunneling Protocol (Layer 2 Tunneling Protocol, L2TP) IP).
When pseudo-line egress forwards message, by the PW label distributed according to PW ingress, search into label mapping table (incoming label map, ILM), to determine the forward-path of message.The corresponding specific forward-path of specific PW label, and this forward-path is unique forward-path.
Inventor finds that prior art exists following technical problem:
When PW egress forwards the message comprising specific PW label, need to search ILM and determine forward-path, ILM exists mistake may be caused forwarding mistake.
Summary of the invention
The embodiment of the present invention provides the method sending message, the method E-Packeted and device, and the ILM that can solve PW egress exists the wrong problem causing forward-path mistake.
On the one hand, the embodiment of the present invention provides a kind of method sending message, comprising:
The ingress of the one PW receives the first message;
First message is encapsulated as the second message by the ingress of the one PW, carries the forward-path information that the first message goes out a PW in the MPLS label of the second message;
The ingress of the one PW sends the second message by a PW.
On the other hand, the embodiment of the present invention provides a kind of method E-Packeted, and comprising:
The egress of the one PW receives the second message;
Second message is descapsulated into the first message;
In the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, forward the first message according to forward-path information.
Another aspect, the embodiment of the present invention provides a kind of method E-Packeted, and comprising:
The ingress of the one PW receives the first message;
First message is encapsulated as the second message by the ingress of the one PW;
Second message is sent to the egress of a PW by the ingress of the one PW;
Second message is descapsulated into the first message by egress;
In the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, egress forwards the first message according to forward-path information.
Another aspect, the embodiment of the present invention provides a kind of device sending message, comprising:
Receiving element, the ingress of a PW is for receiving the first message;
Encapsulation unit, the ingress of a PW is used for the first message to be encapsulated as the second message, carries the forward-path information that the first message goes out a PW in the MPLS label of the second message;
Transmitting element, the ingress of a PW is used for sending the second message by a PW.
Again on the one hand, the embodiment of the present invention provides a kind of device E-Packeted, and comprising:
Receiving element, the egress of a PW is for receiving the second message;
Decapsulation unit, for being descapsulated into the first message by the second message;
First retransmission unit, for when carrying the first message in the MPLS label of the second message and going out the forward-path information of a PW, forwards the first message according to forward-path information.
Visible, the method for the transmission message provided by the embodiment of the present invention, the method E-Packeted and device, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram sending message that the embodiment of the present invention provides;
Fig. 2 is a kind of Hold sticker schematic diagram that the embodiment of the present invention provides;
Fig. 3 is the another kind of Hold sticker schematic diagram that the embodiment of the present invention provides;
Fig. 4 is a kind of method flow diagram E-Packeted that the embodiment of the present invention provides;
Fig. 5 is the method flow diagram that another kind that the embodiment of the present invention provides E-Packets;
Fig. 6 is that the method E-Packeted that the embodiment of the present invention provides is applied to a kind of scene schematic diagram;
Fig. 7 is a kind of device schematic diagram sending message that the embodiment of the present invention provides;
Fig. 8 is a kind of device schematic diagram E-Packeted that the embodiment of the present invention provides.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment one:
Embodiments providing a kind of method sending message, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.A kind of method flow diagram sending message that the embodiment of the present invention provides see Fig. 1, Fig. 1; The method comprises:
The ingress of 101: the one PW receives the first message;
During the ingress first message specific implementation of the one PW, can have multiple implementation, the present invention does not do concrete restriction.Such as, the ingress of a PW is the fringe node of Layer 2 virtual private network (Layer 2 virtualprivate network, L2VPN), and the ingress of a PW receives the message that L2VPN provides; Or the ingress of a PW is the egress of the 2nd PW, the ingress of a PW receives the message that the 2nd PW provides.
First message is encapsulated as the second message by the ingress of 102: the one PW, carries the forward-path information that the first message goes out a PW in the MPLS label of the second message;
When first message is encapsulated as Secondary Report literary composition specific implementation by the ingress of the one PW, can have multiple implementation, the present invention does not do concrete restriction.Such as, the first message that the ingress of a PW receives is the message from the 2nd PW, and it is the PW label that a PW is corresponding that PW label corresponding for the 2nd PW in the first message is replaced (swap) by the ingress of a PW; Or the first message that the ingress of a PW receives is the message from L2VPN, the ingress of a PW adds PW label corresponding to (push) PW to the first message.
Carry the first message in the MPLS label of the second message when going out the forward-path information specific implementation of a PW, can have multiple implementation, the present invention does not do concrete restriction.Such as, can revising mpls protocol (such as RFC3031 or RFC3032), in MPLS label, increasing a field (field), for carrying out the forward-path information of PW.When first message is encapsulated as the second message by the ingress of the one PW, the forward-path information the first message being gone out a PW is encapsulated into the MPLS label of the second message in the lump.The control plane of the one PW egress generates forwarding information base (forward information base, FIB) according to the field increased.Like this, a PW egress can according to the forward-path information of carrying the first message in the MPLS label of the second message and go out a PW, by the link indicated by the first message repeating to forward-path information.In addition, the Hold sticker in MPLS label (Reserved Label) can be utilized to carry the forward-path information that the first message goes out a PW.When first message is encapsulated as the second message by the ingress of the one PW, the forward-path information the first message being gone out a PW is carried to the Hold sticker in MPLS label in the lump.The control plane of the one PW egress generates FIB according to Hold sticker.Like this, a PW egress can according to the forward-path information of carrying the first message in the MPLS label of the second message and go out a PW, by the link indicated by the first message repeating to forward-path information.
The ingress of 103: the one PW sends the second message by a PW.
Second message is sent to the egress of a PW by the ingress of the one PW.
To sum up, for the message carrying the first message in MPLS label and go out the forward-path information of a PW, the egress of a PW can by the link indicated by the first message repeating to forward-path information.In addition, for the message not carrying the first message in MPLS label and go out the forward-path information of a PW, the first message by inquiry ILM, can be sent to the link indicated by ILM by the egress of a PW.
As can be seen here, the method for the transmission message provided by the embodiment of the present invention, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.
Further, forward-path information is carried on the Hold sticker in MPLS label.
Further, Hold sticker between public network tunnel label and PW label, or is positioned at after PW label.
Hold sticker between public network tunnel label and PW label, or when being positioned at specific implementation after PW label, can have multiple implementation, and the present invention does not do concrete restriction.See Fig. 2 and Fig. 3.Fig. 2 is a kind of Hold sticker schematic diagram that the embodiment of the present invention provides; Fig. 3 is the another kind of Hold sticker schematic diagram that the embodiment of the present invention provides; Fig. 2 provides Hold sticker and is positioned at a kind of specific implementation between traffic engineering (trafficengineering, TE) label (type of public network tunnel label) and PW label; Fig. 3 provides Hold sticker and is positioned at PW label a kind of specific implementation below.
Embodiment two:
Embodiments providing a kind of method E-Packeted, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.A kind of method flow diagram E-Packeted that the embodiment of the present invention provides see Fig. 4, Fig. 4; The method comprises:
The egress of 401: the one PW receives the second message;
The egress of the one PW receives the second message and derives from a PW ingress.Namely the ingress of a PW is by a PW, the second message is sent to the egress of a PW.
During Secondary Report literary composition specific implementation, can have multiple implementation, the present invention does not do concrete restriction.Such as, the first message that the ingress of a PW receives is the message from the 2nd PW, and PW label corresponding for the 2nd PW in the first message is replaced with PW label corresponding to a PW by the ingress of a PW, obtains the second message; Or the first message that the ingress of a PW receives is the message from L2VPN, the ingress of a PW adds PW label corresponding to a PW to the first message, obtains the second message.
402: the second message is descapsulated into the first message;
When second message is descapsulated into the first message specific implementation, can be that the PW label that the PW that comprised by the second message is corresponding ejects (Pop).
403: in the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, forward the first message according to forward-path information.
In the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, when forwarding the first message specific implementation according to forward-path information, can have multiple implementation, the present invention does not do concrete restriction.Such as, can revising mpls protocol (needing version number and publication time that current mpls protocol is described), in MPLS label, increasing a field (field), for carrying out the forward-path information of PW.When first message is encapsulated as the second message by the ingress of the one PW, the forward-path information the first message being gone out a PW is encapsulated into the MPLS label of the second message in the lump.The control plane of the one PW egress generates FIB according to the field increased.Like this, a PW egress can according to the forward-path information of carrying the first message in the MPLS label of the second message and go out a PW, by the link indicated by the first message repeating to forward-path information.In addition, the Hold sticker in MPLS label can be utilized to carry forward-path information that the first message goes out a PW.When first message is encapsulated as the second message by the ingress of the one PW, the forward-path information the first message being gone out a PW is carried to the Hold sticker in MPLS label in the lump.The control plane of the one PW egress generates FIB according to Hold sticker.Like this, a PW egress can according to the forward-path information of carrying the first message in the MPLS label of the second message and go out a PW, by the link indicated by the first message repeating to forward-path information.
To sum up, for the message carrying the first message in MPLS label and go out the forward-path information of a PW, the egress of a PW can by the link indicated by the first message repeating to forward-path information.In addition, for the message not carrying the first message in MPLS label and go out the forward-path information of a PW, the first message by inquiry ILM, can be sent to the link indicated by ILM by the egress of a PW.
As can be seen here, the method E-Packeted provided by the embodiment of the present invention, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.
Further, forward-path information is carried on the Hold sticker in MPLS label.
Further, Hold sticker between public network tunnel label and PW label, or is positioned at after PW label.
Hold sticker between public network tunnel label and PW label, or when being positioned at specific implementation after PW label, can have multiple implementation, and the present invention does not do concrete restriction.See Fig. 2 and Fig. 3.Fig. 2 is the schematic diagram that Hold sticker is positioned at a kind of specific implementation between TE label (type of public network tunnel label) and PW label; Fig. 3 is the schematic diagram that Hold sticker is positioned at PW label a kind of specific implementation below.
Further, when not carrying the first message in MPLS label and going out the forward-path information of a PW, the first message is forwarded according to ILM.
Embodiment three:
Embodiments providing the method that another kind E-Packets, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.Be the method flow diagram that another kind that the embodiment of the present invention provides E-Packets see Fig. 5, Fig. 5, the method comprises:
The ingress of 501: the one PW receives the first message;
During the ingress first message specific implementation of the one PW, can have multiple implementation, the present invention does not do concrete restriction.Specifically refer to 101 of enforcement one.
First message is encapsulated as the second message by the ingress of 502: the one PW;
When first message is encapsulated as Secondary Report literary composition specific implementation by the ingress of the one PW, can have multiple implementation, the present invention does not do concrete restriction.Specifically refer to 102 of enforcement one.
Second message is sent to the egress of a PW by the ingress of 503: the one PW;
504: the second message is descapsulated into the first message by egress;
Specifically refer to 402 of enforcement two.
505: in the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, egress forwards the first message according to forward-path information.
In the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, when egress forwards the first message specific implementation according to forward-path information, can have multiple implementation, the present invention does not do concrete restriction.Specifically refer to 403 of enforcement two.
The method E-Packeted that embodiment three provides can be applied to several scenes, and Fig. 6 is the schematic diagram that the method E-Packeted that embodiment three provides is applied to a kind of scene.See Fig. 6:
When main PW normally works, up direction, the message that provider edge equipment (provider edge, PE) sends arrives primary base station controller site gateway (RNC Site Gateway, RSG) by main PW.On the one hand, main RSG forwards the packet to radio network controller (radionetwork controller, RNC) by a L2VPN; On the other hand, message is forwarded to standby RSG by pseudo-line (Inter-Chassis Backup PW, ICB PW) standby between frame by main PW, and standby RSG is forwarded the packet to RNC by the 2nd L2VPN.
After main PW breaks down, down direction, message is sent to main RSG by a L2VPN by RNC, and main RSG forwards the packet to standby RSG by ICB PW, and standby RSG is forwarded the packet to PE by standby PW (now having upgraded to main PW).
That is, before main PW breaks down, main RSG is by ICB PW by after the message repeating that receives to standby RSG, and standby RSG needs to forward the packet to the 2nd L2VPN; After main PW breaks down, main RSG is by ICB PW by after the message repeating that receives to standby RSG, and standby RSG needs to forward the packet to standby PW.
Before and after main PW breaks down, standby RSG needs the message received to switch to be forwarded to standby PW from being forwarded to the 2nd L2VPN.During handoff procedure specific implementation, need to upgrade ILM.Need certain hour owing to upgrading ILM, this will impact switch speed.
The method E-Packeted that embodiment three provides can solve the problem.Concrete solution can be:
As the ingress of ICB PW, main RSG receives the message that main PW provides, when the message that main PW provides is encapsulated as new message by main RSG, the forward-path information (being namely forwarded to the 2nd L2VPN) message that main PW provides being gone out ICB PW is encapsulated into the MPLS label (can be specifically the Hold sticker in MPLS label) of new message in the lump.The control plane of the one PW egress generates FIB according to forward-path information.Like this, after the egress of ICB PW detects and carries forward-path information in new message, can according to forward-path information, the link (i.e. the 2nd L2VPN) indicated by the message repeating that main PW is provided to forward-path information.
After main PW breaks down, main RSG receives the message that a L2VPN provides, and is also encapsulated by the message that a L2VPN provides.When main RSG encapsulates the message that a L2VPN provides, there is no encapsulate forwarded routing information.Like this, the egress of ICB PW to receive after ingress encapsulation after message, forward-path information can not be detected, the egress of ICB PW is by the ICB PW tag queries ILM corresponding according to the ICB PW comprised in the message after encapsulation, and the message (message that a L2VPN provides) after decapsulation is sent to standby PW (because main PW breaks down, standby PW has upgraded to main PW).
As seen from the above analysis, before and after main PW breaks down, standby RSG by the message received from be forwarded to the 2nd L2VPN switch to be forwarded to standby PW time, do not need renewal to transmit.Therefore user can not break down by the main PW of perception.
To sum up, for the message carrying the first message in MPLS label and go out the forward-path information of a PW, the egress of a PW can by the link indicated by the first message repeating to forward-path information.In addition, for the message not carrying the first message in MPLS label and go out the forward-path information of a PW, the first message by inquiry ILM, can be sent to the link indicated by ILM by the egress of a PW.
As can be seen here, the method E-Packeted provided by the embodiment of the present invention, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.
Further, in the MPLS label of the second message, do not carry the first message when going out the forward-path information of a PW, egress forwards the first message according to ILM.
Embodiment four:
Embodiments providing a kind of device sending message, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.A kind of device schematic diagram sending message that the embodiment of the present invention provides see Fig. 7, Fig. 7; This device comprises:
The ingress of receiving element 701: the one PW is for receiving the first message;
During the ingress first message specific implementation of the one PW, can have multiple implementation, the present invention does not do concrete restriction.Specifically refer to 101 of embodiment one.
The ingress of encapsulation unit 702: the one PW is used for the first message to be encapsulated as the second message, carries the forward-path information that the first message goes out a PW in the MPLS label of the second message;
When first message is encapsulated as Secondary Report literary composition specific implementation by the ingress of the one PW, can have multiple implementation, the present invention does not do concrete restriction.Specifically refer to 102 of embodiment one.
Carry the first message in the MPLS label of the second message when going out the forward-path information specific implementation of a PW, can have multiple implementation, the present invention does not do concrete restriction.Specifically refer to 102 of embodiment one.
The ingress of transmitting element 703: the one PW is used for sending the second message by a PW.
Second message is sent to the egress of a PW by the ingress of the one PW.
To sum up, for the message carrying the first message in MPLS label and go out the forward-path information of a PW, the egress of a PW can by the link indicated by the first message repeating to forward-path information.In addition, for the message not carrying the first message in MPLS label and go out the forward-path information of a PW, the first message by inquiry ILM, can be sent to the link indicated by ILM by the egress of a PW.
As can be seen here, the method for the transmission message provided by the embodiment of the present invention, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.
Embodiment five:
Embodiments providing a kind of device E-Packeted, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.A kind of device schematic diagram E-Packeted that the embodiment of the present invention provides see Fig. 8, Fig. 8; This device comprises:
The egress of receiving element 801: the one PW is for receiving the second message;
The egress of the one PW receives the second message and derives from a PW ingress.Namely the ingress of a PW is by a PW, the second message is sent to the egress of a PW.
During Secondary Report literary composition specific implementation, can have multiple implementation, the present invention does not do concrete restriction.Specifically please refer to 401 of embodiment two.
Decapsulation unit 802: for the second message is descapsulated into the first message;
When second message is descapsulated into the first message specific implementation, can be that the PW label that the PW that comprised by the second message is corresponding ejects (pop).
First retransmission unit 803: for when carrying the first message in the MPLS label of the second message and going out the forward-path information of a PW, forward the first message according to forward-path information.
In the MPLS label of the second message, carry the first message when going out the forward-path information of a PW, when forwarding the first message specific implementation according to forward-path information, can have multiple implementation, the present invention does not do concrete restriction.Specifically please refer to 403 of embodiment two.
To sum up, for the message carrying the first message in MPLS label and go out the forward-path information of a PW, the egress of a PW can by the link indicated by the first message repeating to forward-path information.In addition, for the message not carrying the first message in MPLS label and go out the forward-path information of a PW, the first message by inquiry ILM, can be sent to the link indicated by ILM by the egress of a PW.
As can be seen here, the method E-Packeted provided by the embodiment of the present invention, there is the wrong problem causing forward-path mistake in the ILM that can solve PW egress.
Further, comprising:
Second retransmission unit, for when not carrying the first message in MPLS label and going out the forward-path information of a PW, forwards the first message according to ILM.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, foregoing routine can be stored in a computer read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc or CD etc. various can be program code stored medium.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. send a method for message, it is characterized in that:
The ingress of the first pseudo-line PW receives the first message;
Described first message is encapsulated as the second message by the ingress of a described PW, carries the forward-path information that described first message goes out a described PW in the multiprotocol label switching MPLS label of described second message;
The ingress of a described PW sends described second message by a described PW;
Described forward-path information is carried on the Hold sticker in described MPLS label.
2. method according to claim 1, is characterized in that:
Described Hold sticker between public network tunnel label and PW label, or is positioned at after described PW label.
3. the method E-Packeted, is characterized in that:
The egress of the one PW receives the second message;
Described second message is descapsulated into the first message;
In the MPLS label of described second message, carry described first message when going out the forward-path information of a described PW, forward described first message according to described forward-path information;
Described forward-path information is carried on the Hold sticker in described MPLS label.
4. method according to claim 3, is characterized in that:
Described Hold sticker between public network tunnel label and PW label, or is positioned at after described PW label.
5. method according to claim 3, is characterized in that, comprise further:
When not carrying described first message in described MPLS label and going out the forward-path information of a described PW, forward described first message according to entering label mapping Table I LM.
6. the method E-Packeted, is characterized in that:
The ingress of the one PW receives the first message;
Described first message is encapsulated as the second message by the ingress of a described PW;
Described second message is sent to the egress of a described PW by the ingress of a described PW;
Described second message is descapsulated into described first message by described egress;
Described first message is carried when going out the forward-path information of a described PW in the MPLS label of described second message, described egress forwards described first message according to described forward-path information, and described forward-path information is carried on the Hold sticker in described MPLS label.
7. method according to claim 6, is characterized in that:
In the MPLS label of described second message, do not carry described first message when going out the forward-path information of a described PW, described egress forwards described first message according to ILM.
8. send a device for message, it is characterized in that, comprising:
Receiving element, for receiving the first message;
Encapsulation unit, for described first message is encapsulated as the second message, carry the forward-path information that described first message goes out a PW in the MPLS label of described second message, described forward-path information is carried on the Hold sticker in described MPLS label;
Transmitting element, for sending described second message by a described PW.
9. the device E-Packeted, is characterized in that, comprising:
Receiving element, for receiving the second message;
Decapsulation unit, for being descapsulated into the first message by described second message;
First retransmission unit, for when carrying described first message in the MPLS label of described second message and going out the forward-path information of a PW, forward described first message according to described forward-path information, described forward-path information is carried on the Hold sticker in described MPLS label.
10. device according to claim 9, is characterized in that, comprise further:
Second retransmission unit, for when not carrying described first message in described MPLS label and going out the forward-path information of a described PW, forwards described first message according to ILM.
CN201110188351.6A 2011-07-06 2011-07-06 Message transmission method, message forwarding method and devices Active CN102255805B (en)

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Application Number Priority Date Filing Date Title
CN201110188351.6A CN102255805B (en) 2011-07-06 2011-07-06 Message transmission method, message forwarding method and devices
PCT/CN2012/073088 WO2012149846A1 (en) 2011-07-06 2012-03-27 Method for sending messages, method and device for forwarding messages

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Application Number Priority Date Filing Date Title
CN201110188351.6A CN102255805B (en) 2011-07-06 2011-07-06 Message transmission method, message forwarding method and devices

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CN102255805A CN102255805A (en) 2011-11-23
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102255805B (en) * 2011-07-06 2015-03-25 华为技术有限公司 Message transmission method, message forwarding method and devices
CN105591868B (en) * 2015-07-15 2019-03-15 新华三技术有限公司 A kind of cut-in method and device of Virtual Private Network VPN
CN111147372B (en) * 2018-11-05 2021-05-18 华为技术有限公司 Downlink message sending and forwarding method and device
CN111200816A (en) * 2020-01-21 2020-05-26 南通大学 Wireless communication device and wireless communication method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101001196A (en) * 2007-01-25 2007-07-18 华为技术有限公司 Method and device for setting pseudo-line tunnel and transmitting message using it
CN101645836A (en) * 2009-08-25 2010-02-10 杭州华三通信技术有限公司 Packet transmission method and device in multi-protocol label switching network
CN101674239A (en) * 2009-10-10 2010-03-17 华为技术有限公司 Method and device for providing web service
US7756125B2 (en) * 2005-08-05 2010-07-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for routing pseudo-wire encapsulated packets
CN102075438A (en) * 2011-02-14 2011-05-25 中兴通讯股份有限公司 Unicast data frame transmission method and device
CN102082738A (en) * 2011-03-10 2011-06-01 迈普通信技术股份有限公司 Method for extending MPLS VPN access through public network and PE equipment

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1283066C (en) * 2003-07-15 2006-11-01 华为技术有限公司 A multi-level label forwarding method with label expansion
US9166807B2 (en) * 2005-07-28 2015-10-20 Juniper Networks, Inc. Transmission of layer two (L2) multicast traffic over multi-protocol label switching networks
CN1905517A (en) * 2005-07-30 2007-01-31 华为技术有限公司 Control system and method for selecting for warding path for media stream in NGN network
CN102255805B (en) * 2011-07-06 2015-03-25 华为技术有限公司 Message transmission method, message forwarding method and devices

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7756125B2 (en) * 2005-08-05 2010-07-13 Telefonaktiebolaget Lm Ericsson (Publ) Method and arrangement for routing pseudo-wire encapsulated packets
CN101001196A (en) * 2007-01-25 2007-07-18 华为技术有限公司 Method and device for setting pseudo-line tunnel and transmitting message using it
CN101645836A (en) * 2009-08-25 2010-02-10 杭州华三通信技术有限公司 Packet transmission method and device in multi-protocol label switching network
CN101674239A (en) * 2009-10-10 2010-03-17 华为技术有限公司 Method and device for providing web service
CN102075438A (en) * 2011-02-14 2011-05-25 中兴通讯股份有限公司 Unicast data frame transmission method and device
CN102082738A (en) * 2011-03-10 2011-06-01 迈普通信技术股份有限公司 Method for extending MPLS VPN access through public network and PE equipment

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