专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2008076201A1 METHOD AND APPARATUS FOR EXCHANGING ROUTING INFORMATION AND THE ESTABLISHMENT OF CONNECTIVITY ACROSS MULTIPLE NETWORK AREAS 审中-公开
标题翻译：交换路由信息的方法与装置以及多个网络区域建立连通性
公开(公告)号：WO2008076201A1
公开(公告)日：2008-06-26
申请号：PCT/US2007/024227
申请日：2007-11-19
申请人： NORTEL NETWORKS LIMITED , ALLAN, David , BRAGG, Nigel , UNBEHAGEN, Paul , ASHWOOD-SMITH, Peter , GUOLI, Yin
发明人： ALLAN, David , BRAGG, Nigel , UNBEHAGEN, Paul , ASHWOOD-SMITH, Peter , GUOLI, Yin
IPC分类号： H04L12/28 , H04L12/46
CPC分类号： H04L41/12 , H04L12/462 , H04L45/02 , H04L45/04 , H04L45/66
摘要： Routes may be installed across multiple link state protocol controlled Ethernet network areas by causing ABBs to leak I-SID information advertised by BEBs a L1 network area into an L2 network area. ABBs will only leak I-SIDs for BEBs where it is the closest ABB for that BEB. Where another ABB on the L2 network also leaks the same I-SID into the L2 network area from another L1 network area, the I-SID is of multi-area interest. ABBs will advertise I-SIDs that are common to the L1 and L2 networks back into their respective L1 network. Within each L1 and L2 network area, forwarding state will be installed between network elements advertising common interest in an ISID, so that multi-area paths may be created to span the L1/L2/L1 network areas. ABBs may summarize BEB multicast trees such that the set of trees for a given I-SID transiting the ABB is condensed into a common tree. The L2 network may further be implemented as a second layer implemented using a L1/L2/L1 network structure, so that the L1/L2/L1 network structure may recurse an arbitrary number of times.
摘要翻译：路由可以跨多个链路状态协议控制的以太网网络区域安装，使ABB将L1网络区域的BEB发布的I-SID信息泄漏到L2网络区域。 ABB只会泄漏BEB的I-SID，而该BEB是该BEB最接近的ABB。如果L2网络上的另一个ABB也从同一个L1网络区域将相同的I-SID泄漏到L2网络区域，则I-SID具有多方面的兴趣。 ABB将通过将L1和L2网络通用的I-SID广播回各自的L1网络。在每个L1和L2网络区域内，转发状态将安装在对ISID广播共同兴趣的网元之间，从而可以创建多区域路径来跨越L1 / L2 / L1网络区域。 ABB可能会总结BEB组播树，以便将通过ABB的给定I-SID的树组合成一个公共树。 L2网络还可以被实现为使用L1 / L2 / L1网络结构实现的第二层，使得L1 / L2 / L1网络结构可以递归任意次数。

IPRDB

热门服务

关于我们

友情链接

联系方式