发明授权
US08761161B2 Techniques for reliable switchover to a date multicast distribution tree (MDT)
有权
可靠切换到日期多播分发树（MDT）的技术
- 专利标题： Techniques for reliable switchover to a date multicast distribution tree (MDT)
- 专利标题（中）： 可靠切换到日期多播分发树（MDT）的技术
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申请号： US13296386申请日： 2011-11-15
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公开(公告)号： US08761161B2公开(公告)日： 2014-06-24
- 发明人: Arjen Boers , Ijsbrand Wijnands , Nidhi Bhaskar
- 申请人： Arjen Boers , Ijsbrand Wijnands , Nidhi Bhaskar
- 申请人地址： US CA San Jose
- 专利权人： Cisco Technology, Inc.
- 当前专利权人： Cisco Technology, Inc.
- 当前专利权人地址： US CA San Jose
- 代理机构： Fish & Richardson P.C.
- 主分类号： H04L12/28
- IPC分类号： H04L12/28 ; H04H20/71 ; H04L12/50
摘要：
Techniques reliably provide the switchover from a default MDT to the data MDT by using reliable signaling and reliable building of a data MDT. The message notifying of the pending switchover to the data MDT is reliably sent using signaling that is reliable. Also, the switchover from the default MDT to the data MDT does not happen until all egress routers have responded to the message. Egress routers join the data MDT if associated receivers are interested in receiving the multicast stream from a source. The router does not send another response upstream until all egress routers downstream from it respond to the message in the positive or the negative.
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