A path is established through an optical communications network. One or more partial paths are evaluated according to a first criterion, and candidate end-to-end paths are then evaluated according to a second criterion. The end-to-end path evaluation disregards candidate end-to-end paths that include partial paths not meeting the first criterion. A path is established by selecting one of the candidate end-to-end paths on the basis of the second criterion.
申请公布号
EP1769600(A1)
申请公布日期
2007.04.04
申请号
EP20050759445
申请日期
2005.07.12
申请人
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY
发明人
NIVEN-JENKINS, BENJAMIN, PAUL;KING, JOHN, ROBERT;LORD, ANDREW