Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Reexamination Certificate
2005-05-03
2011-12-20
Ngo, Ricky (Department: 2464)
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
C370S400000, C370S429000
Reexamination Certificate
active
08081630
ABSTRACT:
A cascade system of network units includes forwarding units which have external ports, a communication fabric connecting the units and at least one processing unit which needs no forwarding database. The processing unit may perform a security operation such as intrusion prevention or encryption. Each forwarding unit on receipt of a packet performs a look-up to determine an egress port, to determine whether the packet must be diverted to a processing unit, to provide the packet with a first forwarding instruction identifying the egress port uniquely within the system and a second forwarding instruction identifying a diversion port by which the packet can reach the processing unit and to set an order field which determines which of the forwarding instructions shall be performed first. The processing unit is operative on receipt of the packet by way of the diversion port to change the order field to specify that the packet should now be sent to the egress port.
REFERENCES:
patent: 5724358 (1998-03-01), Headrick et al.
patent: 5996021 (1999-11-01), Civanlar et al.
patent: 6104696 (2000-08-01), Kadambi et al.
patent: 6301257 (2001-10-01), Johnson et al.
patent: 6473434 (2002-10-01), Araya et al.
patent: 6680945 (2004-01-01), Merchant et al.
patent: 6721317 (2004-04-01), Chong, Jr.
patent: 2003/0076826 (2003-04-01), Blasiak et al.
patent: 2004/0066799 (2004-04-01), Li et al.
patent: 2005/0018693 (2005-01-01), Dull
patent: 2006/0077975 (2006-04-01), Huang et al.
patent: 2 395 618 (2004-05-01), None
Search Report for Application No. GB 0505050.5.
Choi Kam
O'Keeffe Daniel Martin
O'Malley Edele
O'Neill Eugene
Hewlett--Packard Company
Kao Wei-Po
Ngo Ricky
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