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    FILTERING AND FORWARDING FRAMES WITHIN AN OPTICAL NETWORK
    3.
    发明公开
    FILTERING AND FORWARDING FRAMES WITHIN AN OPTICAL NETWORK 有权
    滤波器和帧的传输在光网络

    公开(公告)号：EP1466444A2

    公开(公告)日：2004-10-13

    申请号：EP02795849.5

    申请日：2002-12-13

    申请人： Broadcom Corporation

    发明人： SALA, Dolors ,  LIMB, John O. ,  GUMMALLA, Ajay Chandra V.

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04Q11/0067 ,  H04Q11/0071 ,  H04Q2011/0047 ,  H04Q2011/0064

    摘要： An optical line terminal (OLT) (102) monitors and controls communications with plurality of optical nodes (ONs) (106) within a passive optical network (PON) (100). A tagging mechanism is implemented to identify an origin ON that introduces a frame into the PON segment linking the origin ON with the OLT (102). The origin ON produces a PON tag to associate its identifier to the frame. The PON tag facilitates filtering and forwarding operations, and enables the physical layer interface to the PON segment to emulate a point-to-point and/or shared communications link. The PON tag allows a MAC control layer to create the virtual ports to traffic incoming and outgoing optical signals, and supply the virtual ports to a forwarding entity for frame filtering and forwarding. The PON tag also allows an OLT (102) and ON (106) to track the origination and/or destination of a frame with the PON segment, and accept pr reject the frame based on the contents of the PON tag.