Scalable routing policy construction using dynamic...

Multiplex communications – Pathfinding or routing – Switching a message which includes an address header

Reexamination Certificate

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Reexamination Certificate

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08064443

ABSTRACT:
In general, techniques are described to dynamically redefine a preference value used during route resolution. A network device, such as a router, may implement the techniques to improve a usability aspect of the router. The router may comprise an interface card that receives messages describing one or more of a plurality of routes. The router may also include a control unit that stores data defining a policy. The policy may comprise rules by which the router determines the preference value for one of the plurality of routes. The policy dynamically redefines the preference value as two or more bit fields rather than viewing the preference value as an integer value. The control unit further sets each of the two or more bit fields of the local preference value in accordance with the policy and associates the at least one of the routes with the determined local preference value.

REFERENCES:
patent: 7457290 (2008-11-01), Salama et al.
patent: 2002/0078223 (2002-06-01), Baldonado et al.
patent: 2003/0039212 (2003-02-01), Lloyd et al.
patent: 2005/0198382 (2005-09-01), Salmi et al.
patent: 2006/0268681 (2006-11-01), Raza
patent: 2007/0091793 (2007-04-01), Filsfils et al.
patent: 2007/0091794 (2007-04-01), Filsfils et al.
patent: 2010/0054241 (2010-03-01), Shah et al.
Siganos, George et al., “Analyzing BGP Policies: Methodology and Tool,” Infocom 2004, 23rdAnnual Joint Conference of the IEEE Computer and Communications Societies, vol. 3, pp. 1640-1651, Mar. 7, 2004 (12 pgs.).
Caesar, Matthew et al., “BGP routing policies in ISP networks,” IEEE Network, vol. 19, Issue 6, Nov. 21, 2005 (8 pgs.).
Retana, Alvaro, et al., “BGP Custom Decision Process,” Cisco Systems, Network Working Group, Internet Draft, Oct. 2002 (7 pgs.).
Rekhter, Y. et al., Request for Comments 4271, entitled “A Border Gateway Protocol 4 (BGP-4)”, Jan. 2006 (98 pgs.).
Fuller, V. et al., Request for Comments 4632, entitled “Classless Inter-domain Routing (CIDR): The Internet Address Assignment and Aggregation Plan,” Aug. 2006 (26 pgs.).
Rekhter et al., “A Border Gateway Protocol 4 (BGP-4)”, Network Working Group, RFC 4271, IETF Standard, Internet Engineering Task Force, Jan. 2006, 90 pp.
Extended European Search Report for EP Application No. 10160376.9 dated Jun. 21, 2010, 8 pp.
Response to Extended European Search Report from European application No. 10160376.9, dated May 13, 2011, 15 pp.
Office Action received in corresponding EP Application No. 10160376.9, mailed Aug. 24, 2011, pp. 4.

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