A method and device for suppressing multicast route flapping
A routing and multicast technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of occupying equipment processor resources, message channels, waste of network bandwidth resources, intermittent traffic, etc., to improve resource utilization. rate, reduce ineffective consumption, prevent the effect of oscillation
Active Publication Date: 2017-11-28
ZTE CORP
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] 2) The incoming interface of the multicast route changes frequently;
[0006] 3) Frequent addition or deletion of multicast routing outbound interfaces
First of all, it will have a serious impact on the stability of multicast traffic, which may cause intermittent traffic and make user experience worse; secondly, route oscillation may cause some unnecessary multicast traffic to be sent, thereby causing network bandwidth Waste of resources; thirdly, routing oscillation will consume a lot of resources of the device itself, occupying precious processor resources and message channels of the device, in addition to affecting the multicast service itself, it will also seize resources with other services, thereby affecting other services. Stable operation
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0052] To solve the problem of multicast route flapping, it is necessary to suppress multicast routes under certain conditions. The purpose of suppression is to prevent the oscillation of multicast routes from spreading downstream. The realization method is to control the changes within the multicast upstream module and not synchronize the changes of the suppressed routes. like figure 1As shown, if the multicast upstream module directly notifies the multicast downstream module of the change of the multicast route, it will cause the oscillation to be transmitted downward, and...
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
Login to View More Abstract
The invention discloses a method and equipment for suppressing multicast routing oscillation, the equipment includes: an outgoing interface statistics module, a routing table entry statistics module and a synchronization module; the method includes: counting the number of outgoing interfaces in the multicast routing table Changes, according to the first oscillation suppression strategy to judge whether each outgoing interface meets the first oscillation suppression condition, and when synchronizing the multicast routing table, the synchronization of the outgoing interface meeting the first oscillation suppression condition is suppressed; According to the change of each routing table item in the multicast routing table, judge whether each routing table item satisfies the second oscillation suppression condition according to the second oscillation suppression strategy, and satisfy the second oscillation suppression condition when synchronizing the multicast routing table. Conditional routing table entry synchronization is suppressed. After adopting the present invention, the oscillation of the multicast route or the outbound interface of the multicast route is effectively suppressed, thereby preventing the oscillation of the multicast flow, reducing the invalid consumption of equipment resources, and improving resource utilization.
Description
technical field [0001] The invention relates to the field of data network communication, in particular to a method and equipment for suppressing multicast route oscillation. Background technique [0002] IP multicast technology realizes point-to-multipoint efficient data transmission in IP network, can effectively save network bandwidth and reduce network load, so in real-time data transmission, multimedia conference, data copy, IPTV (Internet TV), games and simulation And many other aspects have a wide range of applications. With the development of network and multicast services, their stability, safety and reliability have attracted more and more public attention. [0003] The main situations that lead to multicast route flapping are as follows: [0004] 1) The multicast routing itself changes frequently or is frequently added or deleted; [0005] 2) The incoming interface of the multicast route changes frequently; [0006] 3) Outbound interfaces of multicast routes 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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/703H04L12/761H04L45/28H04L45/16H04L47/20
Inventor 徐本崇张征方昌奇
Owner ZTE CORP