Electrical computers and digital processing systems: multicomput – Computer network managing
Reexamination Certificate
2003-03-11
2010-02-23
Bates, Kevin (Department: 2456)
Electrical computers and digital processing systems: multicomput
Computer network managing
C709S224000, C709S220000, C709S242000
Reexamination Certificate
active
07668949
ABSTRACT:
Described are mechanisms for verifying configuration information in 2547 BGP VPNs. An originating PE generates a first knowledge digest encoding first configuration information associated with a current set of information advertised for a VRF. The originating PE also generates a second knowledge digest encoding second configuration information associated with cumulative information advertised for the VRF. The originating PE is capable of receiving a message from a user PE, the message including a third knowledge digest encoding third configuration information related to the user VRF. The originating PE is capable of comparing the first knowledge digest to the third knowledge digest and producing a first indication if the third configuration information encoded in the third knowledge digest is not a subset of the first configuration information encoded in the first knowledge digest.
REFERENCES:
patent: 5265241 (1993-11-01), Arnold et al.
patent: 5727157 (1998-03-01), Orr et al.
patent: 6567380 (2003-05-01), Chen
patent: 7035934 (2006-04-01), Lin
patent: 2003/0026268 (2003-02-01), Navas
Bates Kevin
Dagg David A.
Nortel Networks Limited
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