Electrical computers and digital processing systems: multicomput – Computer-to-computer data routing – Centralized controlling
Reexamination Certificate
2003-12-12
2010-11-02
Nguyen, Thu (Department: 2452)
Electrical computers and digital processing systems: multicomput
Computer-to-computer data routing
Centralized controlling
C709S238000, C398S014000, C398S031000
Reexamination Certificate
active
07827308
ABSTRACT:
Optical link related wavekey information and other vendor specific information is distributed in a WDM network using an extension of the standard OSPF routing protocol. The extension makes use of a vendor attribute Link State Advertisement (LSA) which is a new type of opaque LSA. The vendor attribute LSAs include a Vendatt Link State Identifier (ID) field in the LSA header, and a Vendatt Type/Length/Value (TLV) structure. The Vendatt TLV includes a Vendatt-type field identifying the TLV as a Vendatt TLV, and an enterprise code field identifying the vendor whose equipment (node or network element) generates vendor attribute LSAs or is able to receive vendor attribute LSAs by the identified vendor. Vendor attribute LSAs of a specific vendor are designed to be ignored by nodes or network elements of other vendors.
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Grabner Steve Joseph
Neustadter Udo Mircea
Alcatel-Lucent Canada Inc.
Dailey Thomas J
Donnelly Victoria
IP-MEX Inc.
Nguyen Thu
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