公开(公告)号：US20180048557A1

公开(公告)日：2018-02-15

申请号：US15321738

申请日：2014-10-16

Applicant: ZTE CORPORATION

Inventor： Xiaojian LI ,  Feng SHI ,  Gang LU ,  Wei SHENG

IPC: H04L12/715 ,  H04L12/735

CPC classification number: H04L45/04 ,  H04L45/128 ,  H04L45/1283 ,  H04L45/1287 ,  H04L45/42

Abstract: A method for acquiring a cross-domain separation path includes: when receiving a cross-domain separation path computation request, acquiring K pairs of candidate separation domain sequences according to a cross-domain network abstraction topology; traversing the K pairs of sequences, generating corresponding intra-domain path computation requests for various domains through which candidate separation domain sequences in the network pass to transmit; when receiving at least one pair of intra-domain paths for the request, configuring each of the at least one pair of intra-domain paths to a corresponding position in the K pairs of sequences, to form K pairs of candidate cross-domain separation paths; and determining one pair of cross-domain separation paths from the K pairs of paths as a computation result of the cross-domain separation path computation request to transmit. There are also disclosed another method for acquiring a cross-domain separation path, a path computation element, and a computer storage medium.