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1.发明授权公开(公告)号：US11044161B2
公开(公告)日：2021-06-22
申请号：US16600103
申请日：2019-10-11
摘要： The disclosed s, structures, and methods are directed to a method and a system for embedding a virtual network onto the substrate optical network comprising embedding the plurality of virtual nodes onto the plurality of substrate nodes in accordance with the plurality of location constraints, computing end-to-end latency associated with a plurality of substrate paths connecting a source substrate node and a destination substrate node, wherein the plurality of substrate paths contain the plurality of substrate links and the plurality of substrate nodes, and embedding a virtual link connecting a source virtual node and a destination virtual node onto the one of the plurality of substrate paths connecting the source substrate node and the destination substrate node, wherein the end-to-end latency associated with the one of the plurality of substrate paths is less than or equal to a maximum allowable latency for the virtual link.
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公开(公告)号：US11146349B2
公开(公告)日：2021-10-12
申请号：US16813679
申请日：2020-03-09
发明人： Nashid Shahriar , Shihabur Rahman Chowdhury , Raouf Boutaba , Mubeen Zulfiqar , Jeebak Mitra , Mahdi Hemmati
摘要： The disclosed apparatuses and methods are directed to embedding of virtual links in an optical network. The method comprises: receiving an adaptation request for a virtual link within a virtual network embedded on an optical substrate network; generating a plurality of candidate embeddings based on a topology of the substrate network and a current embedding of the virtual link, each candidate embedding satisfying the adaptation request; determining a total cost of each candidate embedding based on a disruption cost of the candidate embedding; and selecting, as a new embedding, a candidate embedding from the plurality of candidate embeddings in accordance with the determined total cost of the selected candidate embedding.
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公开(公告)号：US10313195B2
公开(公告)日：2019-06-04
申请号：US15048411
申请日：2016-02-19
发明人： Reaz Ahmed , Jeebak Mitra , Shihabur Chowdhury , Nashid Shahriar , Raouf Boutaba
摘要： Techniques for virtual network embedding (VNE) with dedicated protection of multiple virtual networks against a single node or link failure are described. The virtual network embedding provides dedicated protection without using redundant substrate network resources for each of the individual virtual networks (VNs) elements.
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公开(公告)号：US09813287B2
公开(公告)日：2017-11-07
申请号：US15048573
申请日：2016-02-19
发明人： Reaz Ahmed , Jeebak Mitra , Shihabur Chowdhury , Nashid Shahriar , Raouf Boutaba
IPC分类号： H04L12/26 , H04L12/24 , H04L12/721
CPC分类号： H04L41/0668 , H04L41/0672 , H04L41/0836 , H04L41/12 , H04L45/12
摘要： Embedding a virtual network onto a physical network may be done in such a manner to ensure that the embedded virtual network maintains connectivity in the event of failure of k links in the physical network. The embedding determines virtual links that must be embedded onto disjoint paths in the physical network and then embeds the virtual network according to ensure the determined virtual links are embedded on disjoint paths.
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