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

Method and device for realizing multicasting flow load sharing based on equal-cost multi-path (ECMP) routing

A load sharing and path technology, applied in the communication field, can solve problems such as multicast forwarding oscillation, and achieve the effect of avoiding multicast forwarding oscillation

Inactive Publication Date: 2011-04-20
ZTE CORP
View PDF5 Cites 57 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has the following defects: when the ECMP path changes, such as the failure of the second ECMP path, the above method will cause the incoming interfaces of all multicast entries to recalculate and distribute the first ECMP path, the second ECMP path and the third ECMP path. multicast traffic on the path, causing all multicast forwarding to flap

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 device for realizing multicasting flow load sharing based on equal-cost multi-path (ECMP) routing
  • Method and device for realizing multicasting flow load sharing based on equal-cost multi-path (ECMP) routing
  • Method and device for realizing multicasting flow load sharing based on equal-cost multi-path (ECMP) routing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0050] A method and device for realizing load sharing of multicast traffic based on ECMP paths proposed by the present invention, when an ECMP path between devices fails, retransfers the multicast traffic on the failed ECMP path without affecting all ECMP paths of multicast traffic.

[0051] refer to figure 2 , propose an embodiment of the method for realizing multicast traffic load sharing based on ECMP paths in the present invention, including:

[0052] Step S101, when the ECMP path fails, calculate the ECMP path identifier of the obtained current ECMP path table, the current ECMP path table includes the current ECMP path;

[0053] The invention is applied in an IP multicast service system, and there are at least two ECMP paths between upstream and downstream devices of the system. The user first sets up a device that implements load sharing of multicast traffic based on ECMP paths. This device can be connected to the system or built into the system. When the system is 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 for realizing multicasting flow load sharing based on equal-cost multi-path (ECMP), comprising the following steps: when an ECMP fails, calculating the acquired ECMP identifications of a current ECMP routing table, wherein the current ECMP routing table comprises a current ECMP; according to the ECMP identification in the current ECMP table and the mapping relationship between a current ECMP table and a global ECMP table which are synchronized, determining to replace the ECMP, wherein the global ECMP table is the current ECMP table when a system initializes; and transferring the multicasting flow of the failure ECMP routing to the replaced ECMP. The invention also provides a corresponding device. By using the method and the device for realizing the multicasting flow load sharing based on the ECMP, the multicast service oscillation can be avoided when the ECMP between devices is out of order.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and device for realizing multicast traffic load sharing based on equal-cost multipath ECMP. Background technique [0002] Equal Cost Multi-Path (Equal Cost Multi-Path, ECMP path) is a technology to improve the internal gateway routing system based on the shortest path in the network. When there are multiple shortest paths from the source node to the destination node, through a specific algorithm, All data streams are prevented from being forwarded through a fixed path, so as to realize load sharing of unicast services. [0003] refer to figure 1 In the prior art, the upstream and downstream select an ECMP path according to the number of multicast routing entries and ECMP paths using a hash algorithm, so as to realize load sharing of multicast traffic. However, this method has the following defects: when the ECMP path changes, such as the failure of the second ECMP path, the a...

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): H04L12/24H04L12/56H04L45/16H04L45/28
CPCH04L45/24H04L45/16
Inventor 李永亮沈洋赵艳杰
Owner ZTE CORP