LAYER-2 MULTICAST-BASED PACKET FORWARDING METHOD FOR PASSIVE OPTICAL NETWORK
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United States of America Patent
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Issued Date -
Dec 11, 2014
app pub date -
Jun 11, 2013
filing date -
Jun 11, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A layer-2 multicast-based packet forwarding method for PUN includes the following steps of A) disposing a downlink L2-header modifier between a router and a switch hub or a hub and disposing an uplink L2-header modifier in an ONU; B) filtering and fetching a to-be-sniffed packet by means of the uplink L2-header modifier or the downlink. L2-header modifier, the to-be-sniffed packet haying an MAC address; C) modifying the destination MAC address of the to-be-sniffed packet to a specific layer-2 multicast address by means of the uplink or downlink L2-header modifier; and D) either transmitting the to-be-sniffed packet haying a specific layer-2 multicast address to the router or a protocol analyzer by means of the uplink or downlink. L2-header modifier or transmitting the to-be-sniffed packet having a specific layer-2 multicast address to the ONU or the protocol analyzer.
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