US 11,658,837 B2Granted

Multicast packet replication method

AssigneeRealtek Semiconductor Corp.

InventorsKuo-Cheng Lu, Mao-Lin Huang, Yung-Chang Lin

Life of this patent

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Abstract

A replication list table structure for multicast packet replication is provided. The replication list table structure includes a plurality of entries. Each one of the plurality of entries includes a first field, a second field, a third field and a fourth field. For each one of the plurality of entries, the first field is used to declare whether the entry is an end of a program execution, the second field is used to declare the fourth field as a first type field for indicating a switch how to modify a header of a multicast packet, or as a second type field for indicating the switch, while reading the list, to jump to another one of the plurality entries, and the third field is preset to the first type field for indicating the switch how to modify the header of the multicast packet.

Claims5

Dependent claims

A multicast packet replication method, comprising:

configuring a switch to read a plurality of entries of a replication list table according to an indicator to replicate a plurality of packets respectively corresponding to a plurality of headers, each of the entries including a first field, a second field, a third field, and a fourth field, wherein for each of the entries, the first field is used only to declare whether corresponding entry is an end of a program execution, the third field is preset to a first type field for indicating the switch how to modify a header of one of the packets, the second field is used to declare the fourth field as the first type field or a second type field for indicating the switch to jump to another entry of the entries to read the another entry;
and
after the switch modifies the header of one of the packets according to the fourth field of a first entry of the entries, configuring the switch, in response to the first field of the first entry declaring that the first entry is not the end of the program execution, to continue to read a next entry immediately next to the first entry.

Dependencies are inferred from the claim text.

Facts

Application: 16/925,399Filed 10 Jul 2020
Published: US 2022/0014391 A113 Jan 2022
Granted: 23 May 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04L 12/1836
For broadcast or conference , e.g. multicast: with heterogeneous network architecture
H04L 45/16
Routing or path finding of packets in data switching networks: multipoint routing
H04L 49/901
Buffering arrangements: using storage descriptor, e.g. read or write pointers
H04L 69/22
Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass:…