发明名称 |
INTER-DOMAIN SDN TRAFFIC ENGINEERING |
摘要 |
Hierarchical Software Defined Network (SDN) architectures can be used to reduce complexity of traffic engineering in large or divers network environments. In hierarchical SDN architectures, a network is sub-divided into multiple regions, and each region is assigned to a different SDN controller. Network status information is collected and consolidated at a regional level, and fed upstream through the SDN control plane until it reaches a root SDN controller. The root-SDN controller computes cost-based parameters, which are distributed to regional SDN controllers for local provisioning. The cost-based parameters can include Lagrangian variables estimations or other parameters that constrain regional traffic engineering optimization in a manner that advances global traffic engineering objectives. |
申请公布号 |
EP3090517(A1) |
申请公布日期 |
2016.11.09 |
申请号 |
EP20150744082 |
申请日期 |
2015.01.27 |
申请人 |
HUAWEI TECHNOLOGIES CO., LTD. |
发明人 |
LI, XU;DJUKIC, PETAR;ZHANG, HANG |
分类号 |
H04L12/873;H04L12/24;H04L12/911;H04L12/915 |
主分类号 |
H04L12/873 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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