Per-port protection against denial-of-service and...

Details Per-port protection against denial-of-service and... Per-port protection against denial-of-service and...

2005-08-22

2010-10-19

Zand, Kambiz (Department: 2434)

Information security

Access control or authentication

Network

Reexamination Certificate

active

07818795

ABSTRACT:
An apparatus having a corresponding method and computer program comprises one or more ports each to transmit and receive packets of data; a classifier to determine one or more attributes for each of the packets of data; one or more counters for each of the ports, wherein each counter counts a number of the packets of data passing through the respective one of the ports and having a predetermined attribute, wherein a respective counter threshold is associated with each of the counters; and a security circuit to cause each of the ports to perform at least one of a plurality of predetermined actions when a count of a respective one of the counters exceeds a respective counter threshold.

REFERENCES:
patent: 6789203 (2004-09-01), Belissent
patent: 6880090 (2005-04-01), Shawcross
patent: 6886102 (2005-04-01), Lyle
patent: 7266754 (2007-09-01), Shah et al.
patent: 2005/0050364 (2005-03-01), Feng
patent: 2005/0111367 (2005-05-01), Chao et al.
patent: 2005/0254488 (2005-11-01), Huang
patent: 2006/0291458 (2006-12-01), Liu et al.

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