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Apparatus and method for implementing IPV6 multicast filtering on EPON using hardware extended mode

An expansion method and multicast technology, which can be used in security communication devices, electrical components, digital transmission systems, etc., to solve problems such as increasing equipment costs, and achieve the effect of reducing costs and saving downlink data bandwidth.

Inactive Publication Date: 2010-05-12
SHANGHAI BROADBAND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] But adopt this method, need to add a CPU chip, increased the cost of equipment

Method used

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  • Apparatus and method for implementing IPV6 multicast filtering on EPON using hardware extended mode
  • Apparatus and method for implementing IPV6 multicast filtering on EPON using hardware extended mode
  • Apparatus and method for implementing IPV6 multicast filtering on EPON using hardware extended mode

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Embodiment Construction

[0027] Such as Figure 4 As shown, a device for implementing IPV6 multicast filtering on EPON using hardware expansion, including an ONU chip (such as PAS6201), a switch chip (such as Marvell6061) that supports MLD snooping functions and VLAN functions, and a MAC controller chip (optional Support the MAC controller chip of storage bus (Memory Bus) access mode, as the LAN9115 of SMSC), described ONU chip comprises an embedded CPU and control interface (management data input and output interface (MDIO)), and described switching chip comprises CPU port and control interface, the CPU port of the switch chip is connected to the MAC controller chip,

[0028] The switch chip is used to capture all uplink MLD protocol messages, and send the message data to the MAC controller chip through its CPU port (CPU port);

[0029] The MAC controller chip is used to send the received message to the embedded CPU of the ONU chip;

[0030] The embedded CPU is used to analyze the MLD protocol mess...

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Abstract

The invention provides a device for realizing IPV6 multicast filter on EPON via hardware expansion and a relative method, wherein the device comprises an ONU chip, an exchange chip, and a MAC controller chip. The ONU chip comprises an embedded CPU and a control interface. The exchange chip comprises a CPU port and a control port, while the CPU port is connected with the MAC controller chip, the exchange chip is used to capture a MLD protocol report to be sent to the MAC controller chip. The MAC controller chip is used to send a received report to the embedded CPU of the ONU chip, while the embedded CPU is used to analyze the MLD protocol report and build multicast filter list, to realize IPV6 multicast filter. The invention via expanding MAC controller chip realizes MLD Snooping function on ONU chip, to reduce cost, which can realize IPV6 multicast filter on exchange chip, and realize IPv6 multicast filter on ONU chip, thereby saving UNI port descending data bandwidth of ONU chip.

Description

technical field [0001] The invention relates to a method and a device for realizing IPV6 multicast filtering on an EPON network. Background technique [0002] During network transmission, IP multicast (transmitting the same information packet to multiple destinations at the same time) is much more efficient than unicast (sending a copy to each destination separately). Without some type of multicast control in the network, the network will treat multicasts as broadcasts, which means that all hosts on the destination network must process all multicasts sent to that network. In an environment with many types of multicast applications, this may require the performance of being able to snatch the CPU cycles of all hosts on the network, which greatly affects the transmission performance of the network. [0003] IGMP snooping (Internet Group Management Protocol snooping, IPv4 multicast snooping technology) and MLD snooping (IPv6 multicast protocol snooping) technology is to solve ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L9/00H04L12/24H04L29/06H04L12/931
Inventor 李进谭金泉
Owner SHANGHAI BROADBAND TECH
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