Multicast implementation method, system and device based on PCIE switching network

Abstract

The present invention discloses a multicast system based on a PCIE switching network, which comprises a main control board, a line card board and a PCIE switch, wherein the line card board comprises a control unit, a multicast identification unit, a multicast replication unit and a sending interface unit. The control unit is used to append the specific identification information to a message waiting to be sent; the multicast identification unit connected with the control unit is used to judge whether the message waiting to be sent is a multicast message, if yes, then the message waiting to be sent is sent to the multicast replication unit, and if not, then the message waiting to be sent is directly sent to the sending interface unit; the multicast replication unit connected with the multicast identification unit is used to replicate the multicast message and send the replicated multicast message to the sending interface unit; and the sending interface unit is used to encapsulate the multicast message or the non-multicast message into a PCIE message that is then sent to the switching network. For the PCIE switching network, the present invention simplifies the processing complexity of the CPU software of the line card board, reduces working repetition of the CPU of the line card board and increases the retransmission performance of the whole network device.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a PCIE switching network-based multicast implementation method, system and equipment. Background technique [0002] PCI Express (Peripheral Component Interconnect Express) bus is a processor system bus initiated and developed by Intel. It is a serial interconnection technology. It has been accepted by PCISIG and has become the successor of PCI and PCI-X. , the goal is to completely replace PCI and PCI-X. With the release of the PCI Express (abbreviated as PCIE) specification, more and more manufacturers have begun to release chips based on the PCIExpress specification, and some manufacturers have released switches based on PCI Express. , gateway, etc.) is also an option. [0003] As shown in Figure 1, it is a typical distributed system architecture based on a PCIE switch. The main control board and multiple line card boards perform PCIE bus communication through ...

AI Technical Summary

Problems solved by technology

[0008] Embodiments of the present invention provide a PCIE switching network-based multicast implementation method, system and equipment to solve the defect of low efficiency of PCIE switching network multicast transmission in the prior art

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