Method for customizing multicast path

A multicast and path technology, applied in the application field of data communication technology, can solve the problem of not realizing multicast path optimization, and achieve the effects of refined multicast path management, improvement of use efficiency, and realization of security.

Active Publication Date: 2020-12-18
SHENZHEN FORWARD IND CO LTD
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, a method for customizing a multicast path provided by the present invention solves the problem that the RPF information in the prior art actually utilizes ordinary unicast routing information. For the same multicast source or RP, The multicast path of different multicast traffic is the same, and there is no problem of optimizing the multicast path

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  • Method for customizing multicast path

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Embodiment Construction

[0030] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0031] Such as figure 1 As shown, a method for customizing a multicast path includes the following steps:

[0032] S1. Establishing an initial primary routing table entry and an initial secondary routing table entry in the multicast reverse path information table according to the unicast routing information;

[0033] Step S1 includes the following sub-steps:

[0034] S11. Obtain unicast routing information from common uni...

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Abstract

The invention discloses a method for customizing a multicast path. The method comprises the following steps: S1, establishing an initial primary routing table entry and an initial secondary routing table entry; S2, customizing the initial primary routing table entry and the initial secondary routing table entry, and perfecting masks in the table entries to obtain a customized multicast reverse path information table; S3, searching and customizing a primary routing table entry, and matching to obtain a corresponding unicast address; S4, searching a customized secondary routing table entry, andmatching to obtain a corresponding multicast group address; S5, according to the multicast group address, determining a reverse routing RPF neighbor and an RPF interface of the multicast flow, and realizing multicast forwarding path customization based on the multicast sender and the multicast service; according to the method and the device, the problems that in the prior art, RPF information is actually used as common unicast routing information, multicast paths of the same multicast source or RP and different multicast flows are the same, and the optimization of the multicast paths is not realized are solved.

Description

technical field [0001] The invention relates to the application field of data communication technology, in particular to a method for customizing a multicast path. Background technique [0002] In existing multicast routing protocols, multicast path calculation needs to rely on unicast routing information, and a multicast reverse path information table (also called an MRIB table) is established based on this. The multicast reverse path information table is not entirely an ordinary unicast routing table, but a combination of MBGP routing, multicast static routing, and ordinary unicast routing, and is managed based on a certain strategy. Unicast routing information. This mechanism simplifies the calculation process of the multicast forwarding path and improves the efficiency of multicast forwarding path calculation, but it also limits the flexibility of the multicast path. When it is too large, multiple multicast traffic, multicast traffic and unicast traffic will overlap, a...

Claims

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Application Information

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IPC IPC(8): H04L12/761H04L12/725H04L45/16
CPCH04L45/16H04L45/302
Inventor秦骏赵荣方李振华
OwnerSHENZHEN FORWARD IND CO LTD