Forwarding processing method of line identity messages
A line identification and processing method technology, applied in the field of optical communication, can solve problems such as network congestion, hidden safety hazards, and high bandwidth consumption of users
Active Publication Date: 2014-05-21
杭州吉吉知识产权运营有限公司
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[0022] The present invention describes a method for reasonably processing and forwarding PPPoE+ or DHCP Option 82 protocol messages in an EPON system, and solves the problem of excessive user bandwidth consumption and network congestion caused by the downlink broadcast of all or part of such protocol messages. Potential safety hazards and memory waste during message processing
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[0047] The invention provides a method for forwarding and processing the line identification message. In the OLT of the EPON system, by defining a reasonable array and data structure, the uplink protocol message is recorded and the relevant information is dynamically updated. The information includes the chip ID (address), PON slogan and LLID (logical link label) and so on. Ensure that the protocol packet processing of each request interaction of each user will not time out due to user record coverage and not forwarded downstream, and also ensure that each upstream location record of each user is up-to-date. In the downlink, the user record is searched through the user MAC address and chip ID. If the user record is found, set the downstream forwarding information with the recorded chip ID, PON port number and LLID number. When the destination MAC address of the downstream protocol packet is the broadcast MAC address, when the offer, ack, nack and other messages of the DHCP Op...
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The invention relates to a forwarding processing method of line identity messages. The method comprises that when an OLT (optical line terminal) of an EPON (Ethernet passive optical network) receives up protocol messages reported by a user device, and the managing CPU (central processing unit) of the OLT creates or updates the corresponding user record according to user information in the up protocol messages to manage a target MAC (media access control) address and down forwarding information which are matched with the user information; when the OLT receives down protocol messages issued by a server, the managing CPU searches for the user record which is identical to the recorded user MAC address and the target MAC address in the down protocol messages, and forwards the down protocol messages to a user device designated by the user record; when the target MAC address in the down protocol messages is a broadcast address, the managing CPU replaces the broadcast address with the user MAC address in the user record to achieve unique unicast forwarding of the designated user device. The forwarding processing method of the line identity messages solves the problem that the down protocol messages are fully or partly broadcasted to lead to overmuch consumption of user bandwidth.
Description
technical field [0001] The invention relates to the field of optical communication, in particular to a new method for forwarding and processing line identification messages in an EPON system. Background technique [0002] For the EPON (Ethernet Passive Optical Network) system in which the PON (Passive Optical Network) service and switching service are processed by the PON chip, there are two methods for processing and forwarding the line identification protocol message: [0003] 1. PPPoE+ processing: [0004] The implementation process of PPPoE (point-to-point protocol based on Ethernet) includes the discovery (Discovery) phase and the session phase, and the line identification mainly handles the discovery phase. The discovery phase process is as follows: [0005] 1. The user host sends a PPPoE Active Discovery Initial (PADI) packet. The PADI package must contain at least one service name type (Service-Name) tag, which is used to provide the requested service to the acces...
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IPC IPC(8): H04L12/24H04L29/12H04Q11/00
Inventor 曹青龙
Owner 杭州吉吉知识产权运营有限公司