Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2006-09-19
2006-09-19
Patel, Ajit (Department: 2616)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S432000, C370S401000, C370S389000
Reexamination Certificate
active
07110404
ABSTRACT:
In a pipeline network processor, a multicast echo feature ensures that a copy of a packet is sent to all downstream ports associated with an upstream port that delivers the packet. The pipeline network processor maintains a table of header information that is stripped away upon reception in order to forward the packet to each appropriate downstream port. The pipeline network processor performs direct lookups to identify downstream ports associated with the upstream port over which the packet is received. A direct lookup is also performed to obtain the necessary header with which to forward the packet. A copy of the packet with the correct header is then sent to each identified downstream port.
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Baker & Botts L.L.P.
Cisco Technology Inc.
Patel Ajit
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