Packet forwarding apparatus with packet controlling functions

Details Packet forwarding apparatus with packet controlling functions Packet forwarding apparatus with packet controlling functions

2006-03-14

2006-03-14

Pham, Chi (Department: 2667)

Multiplex communications

Data flow congestion prevention or control

C370S389000

Reexamination Certificate

active

07012890

ABSTRACT:
A packet forwarding apparatus which quickly selects a plurality of control information entries to be applied according to header information of an input packet and concurrently performs various the header processing functions. The packet forwarding apparatus comprises a flow retrieval unit which compares header information of the input packet with plural sets of flow identification conditions and concurrently outputs various flow identifiers appropriate to the input packet, various header processing units corresponding to the flow identifiers, and a packet forwarding control unit for controlling forwarding of input packets according to control information outputted from at least one of the header processing units. While each of the header processing units has an information table containing plural information entries, reads a single information entry from the information table according to the flow identifier outputted from the flow retrieval unit, and executes a prescribed arithmetic operation.

REFERENCES:
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patent: 2003/0002438 (2003-01-01), Yazaki et al.
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patent: 08-288950 (1995-04-01), None
patent: 11-102589 (1997-09-01), None
Masanori Uga and Kohei Shiomoto, “A Flow Identification Method Using Content Addressable Memory”, Proceedings of the 2000 IEICE General Conference, SB 4-2, p. 654.

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