Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for realizing virtual private multicast service protection

An implementation method and multicast service technology, applied in the branch office to provide special service devices, transmission systems, digital transmission systems, etc., can solve the problems of long service interruption time and affecting user experience, so as to improve user experience and reduce fault waiting Time, improved stability and safety effects

Inactive Publication Date: 2010-06-02
ZTE CORP
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] image 3 After the active link fails, figure 1 The schematic diagram of the traffic transmission path when the existing dual-homing technology is applied to VPMS is shown, as shown in image 3 As shown in the figure, when the active link CE1 to PE1 fails, the traffic on CE1 will be switched to the backup link, that is, the link between CE1 and PE2. line, which obviously has the problem of long service interruption time, which affects user experience

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for realizing virtual private multicast service protection
  • Method and system for realizing virtual private multicast service protection
  • Method and system for realizing virtual private multicast service protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] In this embodiment, the master device and the backup device are determined according to the settings, and when the link between the sender of the data message and the master device is normal, it only sends the data message to the master device, and judges Whether the link between it and the active device fails, when the link between it and the active device fails, the data message sender sends the data message to the backup device, and then the backup device forwards the data message to the main device. with equipment.

[0091] Figure 7 It is a flowchart of the implementation method of VPMS protection in Embodiment 1 of the present invention, such as Figure 7 As shown, the implementation method of VPMS protection in Embodiment 1 includes the following steps:

[0092] Step 71: Set up the active device and the backup device.

[0093] For example, for figure 1 In the dual-homing network shown, the carrier edge device PE1 is set as the active device, and the carrier e...

Embodiment 2

[0107] In this embodiment, the master device and the backup device are determined through elections, and when the link between the data message sender and the master device is normal, the data message sender sends the data message to the master device and the backup device at the same time. Send data packets, the active device copies and forwards the received data packets, and the backup device discards the received data packets. Whether the link between the sending end of the data message and the active device fails is determined by the active device, and after a fault occurs, the standby device is notified to forward the data message to the active device.

[0108] Figure 8 It is a flowchart of the implementation method of VPMS protection in Embodiment 2 of the present invention, such as Figure 8 As shown, the implementation method of VPMS protection in Embodiment 2 includes the following steps:

[0109] Step 81: Generate a master device and a backup device through electi...

Embodiment 3

[0126] In this embodiment, when the dual-homing active link fails, the active device controls link switching.

[0127] Figure 9 It is a flowchart of the implementation method of VPMS protection in Embodiment 3 of the present invention, such as Figure 9 As shown, the implementation method of VPMS protection in embodiment 3 includes the following steps:

[0128] Step 91: Generate a master device and a backup device through election.

[0129] for figure 1 In the dual-homing network shown, an active device and a backup device can be elected according to the election mechanism described in step 41, for example, the operator edge device PE1 is the active device, and the provider edge device PE2 is the backup device.

[0130] Step 92: Establish a pseudowire between the active device and the standby device.

[0131] Here, specifically, the active device initiates a pseudowire establishment request to the backup device, and the active device and the backup device negotiate to est...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for realizing virtual private multicast service (VPMS) protection, comprising the following steps of determining main equipment and standby equipment and establishing a pseudo wire between the main equipment and the standby equipment; receiving data messages from a data message sending end by the main equipment, copying and forwarding the data messages to a data message receiving end; after a link of the main equipment and the data message sending end has a fault, receiving the data messages from the data message sending end by the standby equipment and forwarding the data messages to the main equipment; and then, copying and forwarding the data messages from the standby equipment to the data message receiving end by the main equipment. The invention also discloses a system for realizing VPMS protection, comprising the data message sending end, the main equipment, the standby equipment and the data message receiving end. The invention can save the time for establishing a P2MP pseudo wire between the standby equipment and the data message receiving end, improve the stability and the safety of the VPMS and reduce the fault wait time, thereby improving the user experience.

Description

technical field [0001] The present invention relates to virtual private multicast service technology, in particular to a virtual private multicast service (Virtual Private Multicast Service, VPMS) protection realization method and system. Background technique [0002] The Internet Engineering Task Force Layer 2 Virtual Private Network (The Internet Engineering Task Force Layer 2 Virtual Private Network, IETF L2VPN) generally implements the Layer 2 point-to-multipoint (P2MP) service through the following three methods: Virtual Private Line Service (Virtual Private Line Service) Private Wire Service, VPWS), virtual private network service (Virtual Private LAN Service, VPLS), VPLS multicast. [0003] Among them, VPWS essentially provides point-to-point (P2P) connections, and its support for P2MP services generally replicates P2MP traffic through customer equipment (Customer Equipment, CE), and then multiple pseudowires (Pseudo wire, PW) sends the replicated P2MP traffic to eac...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L12/56H04L45/16
Inventor 吴波张新全陈然
Owner ZTE CORP