Method and device for multicast forwarding

A multicast and multicast group technology, applied in the field of communication, can solve the problem of not providing multicast packet forwarding, etc.

Active Publication Date: 2016-08-17
XFUSION DIGITAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, BIER technology does not provide how to realize the forwarding of multicast packets

Method used

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  • Method and device for multicast forwarding
  • Method and device for multicast forwarding
  • Method and device for multicast forwarding

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Embodiment Construction

[0139] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are the Some, but not all, embodiments are invented. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0140] The embodiment of the present invention provides a method for multicast forwarding. In the method, the BFER in the BIER network can, according to the information of the multicast group in the pre-acquired multicast receiver (English name is receiver) list, Determine the IP address of the registered router that supports the multicast group, the registered router has the ability to process multica...

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Abstract

The invention discloses a method and a device for multicast forwarding, which can enable a BFIR (bit-forwarding ingress router) to acquire BFER (bit-forwarding egress router) information included in a multicast group and enable a BIER (bit index explicit replication) multicast network to be quickly deployed. The BFER in the BIER network can determine an IP address of a registered router supporting the multicast group according to information of the multicast group in a pre-acquired multicast receiver list; according to the information of the multicast group and the IP address of the registered router supporting the multicast group, the BFER generates a BFER registration message, wherein the BFER registration message comprises the information of the multicast group, the destination IP address of the BFER registration message is the IP address of the registered router, and the source IP address of the BFER registration message is the IP address of the BFER; the BFER sends the BFER registration message to the registered router; and after the registered router in the BIER network receives the BFER registration message sent by the BFER, a BFER table entry is acquired according to the BFER registration message, wherein the BFER table entry comprises the information of the multicast group and the IP address of the BFER.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method for multicast forwarding, a bit-forwarding egress router (full English name is bit-forwarding egress router, English abbreviation is BFER), a bit-forwarding ingress router (English full name is bit-forwarding ingress router) router, English abbreviation is BFIR) and registered router. Background technique [0002] Bit index-based explicit replication (English full name is bit index explicit replication, English abbreviation is BIER) technology belongs to a new type of message sending technology. The BIER technology can realize the transmission of messages through multiple bit-forwarding routers (English full name is bit-forwarding router, English abbreviation is BFR) set in the BIER network. [0003] Both BFIR and BFER belong to the BFR in the BIER network. BFIR can send messages to BFER in BIER network. The BFIR can obtain a bit string (English name is bitstring) a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/18H04L12/761H04L45/16H04L45/74
CPCH04L12/18H04L12/4641H04L45/16H04L12/1886H04L45/745H04L12/185
Inventor 徐小虎
Owner XFUSION DIGITAL TECH CO LTD
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