Multicast data forwarding method and device thereof

A forwarding method and technology for multicast data, applied in the field of communication, can solve the problems of increasing the implementation and complexity of PE equipment, and achieve the effect of improving pertinence and reducing link bandwidth

Inactive Publication Date: 2011-04-27
NEW H3C TECH CO LTD
View PDF2 Cites 38 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this solution implements the multicast data forwarding function under VPLS, it requires PE devices under VPLS networking to support BGP and RSVP-TE P2MP technology, which increases the implementation and complexity of PE devices, and this solution is mainly aimed at Layer 3 multicast function, but former VPLS is more used in Layer 2 networking

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
  • Multicast data forwarding method and device thereof
  • Multicast data forwarding method and device thereof
  • Multicast data forwarding method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0057] In view of the above-mentioned problems in the prior art, the embodiment of the present invention provides a technical solution for dynamically creating a multicast-based PW under a VPLS application, so that the multicast data stream can be accurately forwarded on demand, that is, only when the AC side of the PE When a corresponding multicast group joins, a PW containing group information is established on the local and opposite PEs, and a multicast forwarding entry based on the group address is established for forwarding.

[0058] figure 2 Shows a schematic diagram of the VPLS networking architecture provided by the embodiment of the present invention, and the following combination figure 2 The shown networking architecture describes the embodiments of the present invention in detail.

[0059] The technical solution provided by the embodiments of the present invention mainly includes two processes. One is to create multicast forwarding entries based on multicast addresses ...

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 multicast data forwarding method and a device thereof, applied to a VPLS (Virtual Private LAN Service) system containing PEs (Provider Edge). The method comprises the following steps of: acquiring multicast addition information by a PE through monitoring a group management packet, establishing a multicast forwarding table entry and submitting the multicast addition information, wherein the multicast forwarding table entry comprises a multicast address and a corresponding output port which is a port at the AL (Access Link) side of multicast virtual connection or localPE. When the PE receives the multicast data sent to the multicast address, the multicast data is forwarded through the output port corresponding to the multicast address according to the established multicast forwarding table entry. The invention can be adopted to reduce the link bandwidth occupied by forwarding the multicast data.

Description

Technical field [0001] The present invention relates to the field of communication, in particular to a multicast data forwarding method and device. Background technique [0002] MPLS (Multiprotocal Label Switching) is a technology that uses labels bound in IP packets to forward data packets through the network. MPLS is currently the most widely used in VPN (Virtual Private Network, virtual private network). [0003] MPLS-based Layer 2 VPN is a network that service providers provide customers with Layer 2 services. The MPLS VPN network uses label switching. One label corresponds to one user data stream, which is easy to isolate data between users; MPLS technology can optimize the configuration of network resources to a large extent, automatically and quickly repair network failures, and provide high availability and high reliability. [0004] But in addition to VPLS (Virtual Private LAN Services, Virtual Private LAN Services) other Layer 2 VPNs are all point-to-point services. In or...

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): H04L12/56H04L12/18H04L45/16H04L45/50H04L45/74
Inventor 桂永忠陈锦军
Owner NEW H3C 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