A method and a device for querying a multicast forwarding path

A forwarding path and query group technology, applied in the field of communication, to achieve efficient acquisition, ensure accuracy, and reduce system consumption

Active Publication Date: 2019-01-18
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this method will have the management problem of traffic visualization
For network operation and maintenance, it is usually necessary to know the specific path of multicast packets forwarded in the BIER network, especially when there are a large number of equal-cost paths in the network. In the BIER network, it is currently impossible to accurately obtain the actual service report in advance The specific path of the document forwarded in the BIER network

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  • A method and a device for querying a multicast forwarding path
  • A method and a device for querying a multicast forwarding path
  • A method and a device for querying a multicast forwarding path

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Embodiment Construction

[0043] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

[0044] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term...

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Abstract

The invention provides a method and a device for querying a multicast forwarding path. Through the incoming node in the BIER network to construct the original message for path inquiry, and the original message is encapsulated as a BIER message and the path information of a node is added and forwarded in a BIER network, so that the intermediate node can add its own path information in the originalmessage contained in the BIER message when receiving the BIER message, the outgoing node extracts the path information of each node from the original message, adds its own path information to the extracted path information, and transmits the path information of each node to the incoming node in a unicast message; the incoming node determines the forwarding path queried according to the path information of each node carried by the unicast message sent by each node. Through the method, the forwarding path of the multicast message in the BIER network can be obtained accurately and efficiently inadvance.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and device for querying a multicast forwarding path. Background technique [0002] BIER (bit index explicit replication, bit index explicit replication) is a new multicast basic forwarding architecture, which is very different from traditional PIM (Protocol Independent Multicast, Protocol Independent Multicast), and belongs to an Overlay technology. In the BIER network, all multicast ingress and egress nodes can be marked with 1Bit, and all nodes in the network establish a Bit Index forwarding table according to the IGP (Interior Gateway Protocol, Interior Gateway Protocol) topology. The multicast ingress node encapsulates the BIER header of the multicast message, and the BIER header carries the identifiers of all the egress nodes. After sending the multicast to the network, the intermediate nodes in the network can identify the identifiers of the egress nodes in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/741H04L12/761H04L45/74H04L45/16
CPCH04L45/16H04L45/74
Inventor 陈翀
Owner NEW H3C TECH CO LTD
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