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A method and system for reducing dr changes in pim protocol

A protocol and protocol processing technology, applied in the field of communication, can solve the problems of multiple packets and packet loss in DR traffic, and achieve the effect of reducing DR changes

Active Publication Date: 2020-05-05
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a method for reducing the change of DR in the PIM protocol, which is used to solve the problem in the prior art that PIM equipment joining the shared network will lead to DR re-election, resulting in multiple traffic packets or packet loss

Method used

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  • A method and system for reducing dr changes in pim protocol
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  • A method and system for reducing dr changes in pim protocol

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Embodiment Construction

[0020] In order to make the purpose, technical method and advantages of the present invention clearer, the inventive method will be described in detail below, and the present invention will be described in detail in conjunction with the accompanying drawings, and the parts not specified in particular are consistent with the protocol behavior stipulated in the standard RFC4601.

[0021] Such as figure 1 As shown, the method for reducing the DR change of the PIM protocol provided by the preferred embodiment of the present invention includes the following steps: Step S1: After the PIM device joins the shared network, the PIM device interface receives the Hello message sent by other PIM devices in the shared network, Wherein, the Hello message carries a DR address option; Step S2: The PIM device interface uses the currently used DR address carried in the Hello message as the DR address of the interface.

[0022] In a preferred embodiment, the method for reducing changes in the DR ...

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Abstract

The invention discloses a method and system for reducing DR changes of a protocol-independent multicast PIM protocol designated router, comprising: after a PIM device joins a shared network, the PIM device interface receives Hello messages sent by other PIM devices in the shared network, wherein The Hello message carries a DR address option; the PIM device interface uses the currently used DR address carried in the Hello message as the DR address of the interface. The method and system for reducing DR changes of the PIM protocol disclosed by the present invention can solve the problem in the prior art that PIM equipment joins a shared network and causes DR re-election to cause multiple packets or packet loss, and is a useful supplement to the standard RFC4601.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a method and a system for reducing the change of a Designated Router (DR) of Protocol Independent Multicast (PIM) protocol. Background technique [0002] In a shared network, such as an Ethernet network, a Protocol Independent Multicast (PIM) protocol elects a designated router (Designated Routers, DR). After the interface is up, it defaults to be the DR. After receiving the Hello message, the DR is re-elected to elect a new DR. Internet Group Management Protocol (IGMP) or Multicast Listener Discovery Protocol (MLD) messages for users to join or leave a group will be received by all devices on the network, and DR is responsible for forwarding multicast traffic to users on this network. [0003] When a PIM device is added to the network, the DR may change. Specifically, when a newly added PIM device is elected as the DR, the original DR no longer forwards traffic, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/741H04L12/751H04L45/02H04L45/74H04L45/16
CPCH04L45/026H04L45/16H04L61/5069H04L2101/604
Inventor 徐本崇纪小利
Owner ZTE CORP
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