发明授权
US07283529B2 Method and system for supporting a dedicated label switched path for a virtual private network over a label switched communication network
有权
用于在标签交换通信网络上支持用于虚拟专用网络的专用标签交换路径的方法和系统
- 专利标题: Method and system for supporting a dedicated label switched path for a virtual private network over a label switched communication network
- 专利标题(中): 用于在标签交换通信网络上支持用于虚拟专用网络的专用标签交换路径的方法和系统
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申请号: US10383973申请日: 2003-03-07
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公开(公告)号: US07283529B2公开(公告)日: 2007-10-16
- 发明人: Claude Basso , Brahmanand K. Gorti , Natarajan Vaidhyanathan , Colin B. Verrilli
- 申请人: Claude Basso , Brahmanand K. Gorti , Natarajan Vaidhyanathan , Colin B. Verrilli
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Sawyer Law Group LLP
- 主分类号: H04L12/28
- IPC分类号: H04L12/28 ; H04L12/56 ; G06F15/173
摘要:
A system and method for transmitting data from a first site to a second site over a shared Multi-Protocol Label Switched (MPLS) network comprising a plurality of routers, including an ingress router in communication with the first site and an egress router in communication with the second site, includes configuring a plurality of label switching paths between the ingress router and the egress router over a plurality of label switching devices. The method further includes performing a first lookup on one of at least one virtual routing and forwarding (VRF) table stored in the ingress router, whereby the first lookup identifies one routing table from a plurality of routing tables stored in the ingress router, each routing table being associated with one of the plurality of label switched paths, and performing a second lookup on the one routing table, wherein the routing table defines the associated label switched path between the ingress router and the egress router for a virtual private network (VPN) between the first site and the second site.
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