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Method, equipment and system for forwarding message as well as equipment for receiving message

A technology for forwarding and receiving messages, applied in the field of communication, can solve problems such as user message loss, achieve link protection, save equipment research and development costs, and save consumption

Inactive Publication Date: 2008-09-03
JIANGSU HENGBO PNEUMATIC CONVEYING EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the message sent by the communication device between 1001 and 1005 will still be sent to the faulty link because the switchover has not been started, resulting in the loss of user messages

Method used

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  • Method, equipment and system for forwarding message as well as equipment for receiving message
  • Method, equipment and system for forwarding message as well as equipment for receiving message
  • Method, equipment and system for forwarding message as well as equipment for receiving message

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Figure 4 It is a flow chart of the method for forwarding packets provided by Embodiment 1 of the present invention. see Figure 4 , the embodiment of the present invention provides a method for forwarding a message, including:

[0046] 101: CE1 sends a packet to PE1, the packet is a user packet, and the destination address is CE2.

[0047] 102: PE1 receives the packet sent by CE1.

[0048] 103: PE1 copies the received message to obtain at least one message, which is the same as the received message. Usually, the total number of copied packets and the number of received packets is not greater than the total number of pseudowires pre-established by PE1. In this embodiment, PE1 pre-establishes three pseudo-wires between PE1 and PE2, so one packet or two packets can be copied. The following takes copying two packets as an example to illustrate, that is, after copying A total of three identical messages are obtained, including the received message.

[0049] 104: PE1 f...

Embodiment 2

[0061] Figure 7 It is a flowchart of a method for forwarding packets provided by Embodiment 2 of the present invention. see Figure 7 , the embodiment of the present invention also provides a method for forwarding a message, the method specifically includes:

[0062] 201: CE1 sends a packet to PE1, the packet is a user packet, and the destination address is CE2.

[0063] 202: PE1 receives the packet sent by CE1.

[0064] 203: PE1 judges that the received packet needs to be fragmented, then fragments the packet to obtain multiple fragmented packets;

[0065] 204: PE1 first copies at least one fragmented message from any one of the multiple fragmented messages obtained, and then passes through at least two pseudo-wires among the three pre-established pseudo-wires, according to each The principle of pseudowire forwarding a fragmented message is to forward any fragmented message and the copied fragmented message to PE2. In this embodiment, two fragmented messages are copied f...

Embodiment 3

[0074] see Figure 9 , an embodiment of the present invention provides a device for forwarding a message, specifically including:

[0075] A receiving module, configured to receive messages;

[0076] The forwarding module is used to copy the message received by the receiving module to obtain at least one message, and forward the received message according to the principle of forwarding one message per pseudo-wire through at least two of the pre-established multiple pseudo-wires. The message and at least one copied message are sent to the receiving end PE.

[0077] In the tool, the forwarding module may specifically include:

[0078] The identification unit is used to add an identification to the message received by the receiving module;

[0079] The forwarding unit is used to copy the message marked by the identification unit to obtain at least one message, and to forward at least one message through at least two of the pre-established multiple pseudo-wires according to the...

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PUM

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Abstract

The invention discloses method, device, system for transferring message and a device for receiving message, belonging to the communication technology art. The method comprises: receiving message; obtaining at least one message by copying the message; and transferring the received message and the copied message to a receiving end PE by presetting at least two pseudowires from a plurality of pseudowires, according to the principle that each pseudowire only transfers one message. The transferring device includes: a receiving module and a transferring module. The receiving device comprises: a receiving module and a processing module; or receiving module, a recombining module and a processing module. The system contains a sending end equipment and a receiving end equipment. Due to the plurality of pseudowires simultaneously bears the user traffic, when any link goes wrong, the other links can continuously transfer the traffic to protect the links and avoid the situation of user traffic lost in the transferring and failback process caused by protecting the links using a backup link, thereby, the invention can provide higher level reliability assurance.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method, device and system for forwarding messages and a device for receiving messages. Background technique [0002] MPLS (Multi-protocol Label Switch, Multi-protocol Label Switching) L2VPN (Layer 2 Virtual Private Networks, Layer 2 Virtual Private Network) provides Layer 2 VPN services based on MPLS networks, and realizes transparent transmission of user data in MPLS networks through label stacks. figure 1 is a schematic diagram of MPLS L2VPN forwarding packets in the prior art, see figure 1 , during MPLS L2VPN packet forwarding, CE (Customer Edge, user network edge) 1 device sends user data to PE (Provider Edge, operator network edge) 1 device, PE1 first adds an inner label V before the user data (that is, the private network label, called VC label in MPLS L2VPN), and then add the outer label T (that is, the public network label Tunnel), and then send it to P (Provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L12/46H04L45/28
Inventor 王新伟
Owner JIANGSU HENGBO PNEUMATIC CONVEYING EQUIP MFG CO LTD
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