Method for ether passive optical network access equipment to transmit downlink data packet

Abstract

The invention discloses a method using ether passive optical network access device to transmit the down data message, including: carrying analysis on the terminal user up data by EPON access device for obtaining MAC address; if the address is new, the corresponding insvlan tag of the terminal user at the ONU port and the MAC address are combined as an identification item A, and the svlan tag of the up data message or the terminal user self vlan tag and the MAC address are combined as an identification item B, then the coincidence relation on the ONU port and the identification item A, the identification item B are respectively built, and also the associate relation of the identification item A and the identification item B are built; when the EPON access device transmits the down date message, the ONU port is determined according to the coincidence relation of the identification item B and the ONU port of the terminal user, then the down data message is transmitted to the object terminal user through the ONU terminal. The invention avoids the broadcast flood of all the ONU ports for the down date message.

Description

technical field [0001] The present invention relates to the field of EPON (Ethernet Passive Optical Network, Ethernet Passive Optical Network) access, in particular to a method for sending downlink data messages from EPON access equipment. Background technique [0002] Ethernet technology has been widely used due to its good economy, interoperability and ease of use. With the maturity of EPON, 10Gbit / s Ethernet and other technologies and standards, Ethernet gradually develops into metropolitan area network and wide area network. Originally, 802.1Q VLAN (Virtual Local Area Network, Virtual Local Area Network) was used to isolate and identify end users. Big limitation, because the vlan tag (virtual local area network label) domain defined in IEEE802.1Q has only 12 bits, which can only represent 4K vlans, which is stretched for a large number of end users that need to be identified in the metropolitan Ethernet, so the QinQ service came into being pregnancy. The QinQ service r...

AI Technical Summary

Problems solved by technology

[0007] For the downlink transmission direction of the data message, for the downlink data message with the svlan tag sent by the uplink switch, the EPON access device directly removes the svlan tag (the vlan attribute of the svlan on the downlink port is untag), leaving the end user himself vlan tag, the transparently transmitted downlink data message only has the user's own vlan tag, because the EPON access device does not record the end user's MAC (Media Access Control, Media Access Control) address and The corresponding relationship between the terminal user's own vlan tag or the combined identification item of the outer label svlan tag and the ONU port where the end user is located. Therefore, the EPON access device will perform data flooding on the downlink data packets, so that it is connected to the EPON access device All the ONU (Optical Network Unit, optical network unit) ports of the system can receive the downlink data packets of broadcast flooding, the downlink business is impacted, and there is a security risk of information being eavesdropped

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