Method and equipment for failure notification

A fault notification and fault technology, applied in the field of communication, can solve the problems that the fault information and cause cannot be transmitted to the leaf nodes, and the fault information cannot be obtained by the leaf nodes, so as to ensure normal operation and improve reliability.

Inactive Publication Date: 2009-06-10
HUAWEI TECH CO LTD
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] In the process of realizing the present invention, the applicant finds that the prior art has the following defects at least: the LDP/mLDP protocol notifies the failure in the protocol processing process by the Notification message, but generally only limited to two adjacent label switching routers (Label Switch Router, LSR), when the faulty label switching ro

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 equipment for failure notification
  • Method and equipment for failure notification
  • Method and equipment for failure notification

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] The first embodiment, a method of fault notification, see figure 1 , The method includes:

[0028] 101. Detect whether a multicast LSP fails, and the multicast LSP is established based on the multicast label distribution protocol (mLDP).

[0029] The process of establishing a P2MP LSP through mLDP is different from detecting whether a multicast LSP fails after the establishment is successful. The following are respectively introduced:

[0030] In the process of establishing P2MP LSP through mLDP, each intermediate node detects whether there is a failure, generally by detecting the status of its own direct upstream node or the path between it and the direct upstream node. The cause of the failure can include whether there is no route or label space. Whether it is wrong or does not support P2MP, among which, whether there is no route can include: whether the route to the head node can not be calculated, whether the label space is wrong can include: whether the label space is...

Example Embodiment

[0051] The second embodiment is a switching device for notifying the failure of the multicast label switching path established based on the multicast label distribution protocol, see image 3 , The switching equipment includes: (Adaptive modification after confirmation of method rights modification)

[0052] The detecting unit 301 is configured to detect whether the multicast LSP fails, and the multicast label switching path is established based on the multicast label distribution protocol;

[0053] The information unit 302 is configured to send failure information to a downstream node of the multicast tree where the failure point is located when a failure is detected; the failure information reaches the leaf node after being forwarded by one or more downstream nodes.

[0054] Among them, the information unit includes:

[0055] An information generating subunit, configured to generate a failure notification message, the failure notification message being used to carry the failure i...

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 and a device for notifying fault. The method comprises: when detecting that a multicast label switching path is in fault, sending fault information to a downstream node of a multicast tree where a fault point is positioned, and establishing the multicast label switching path based on a multicast label distribution protocol; and transmitting the fault information to a leaf node through the downstream node. By adopting the method and the device for notifying the fault, after a multicast LSP established on the basis of the multicast label distribution protocol is in fault, the method sends the fault information to the downstream node of the multicast tree where the fault point is positioned, and the downstream node after receiving the fault information continuously transmits the fault information according to conditions, so as to finally transmit the fault information to the leaf node; and after the leaf node acquires the fault information, proper measures can be taken to ensure normal running of service and improve reliability of a network.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and equipment for fault notification of a multicast label switching path established based on a multicast label distribution protocol. Background technique [0002] Multicast technology (Multicast) is a one-to-many multi-party communication method. Different from the commonly used unicast technology, the multicast technology can greatly reduce the consumption of network resources by multi-party communication by establishing an optimal multicast forwarding path and reducing the duplication of data content. The core issue of multicast technology is the construction of multicast forwarding tree. The multicast forwarding tree is a forwarding path established from one (or more) source nodes to multiple receiving nodes, and multicast data is transmitted on the network through the multicast forwarding tree to achieve the purpose of optimizing forwarding efficiency. [0003] There ar...

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
IPC IPC(8): H04L12/26H04L12/56
CPCH04L45/22H04L41/06H04L45/50H04L45/28H04L49/201H04L49/557H04L45/16
Inventor 曹玮陈国义
Owner HUAWEI TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap