发明名称 |
Enhancements to PIM Fast Re-Route with Upstream Activation Packets |
摘要 |
An upstream activation mechanism provides enhancements to PIM-SM based fast re-route in a multicast communication network, where secondary paths provides redundancy to a multicast tree and are on standby to reduce bandwidth usage when there is no failure in the network. Upon receiving an indication of a loss of connection to the primary path of the multicast tree network, a network node that has a failure-free secondary path to a common source node of the multicast tree sends an activation packet upstream toward the common source node via the failure-free secondary path. The activation packet causes one or more upstream nodes to unblock their respective outgoing interfaces to thereby activate transmission of the multicast data traffic on the failure-free secondary path. |
申请公布号 |
US2013322232(A1) |
申请公布日期 |
2013.12.05 |
申请号 |
US201213486651 |
申请日期 |
2012.06.01 |
申请人 |
CSASZAR ANDRAS;TANTSURA EVGENY;ENYEDI GABOR SANDOR;TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
CSASZAR ANDRAS;TANTSURA EVGENY;ENYEDI GABOR SANDOR |
分类号 |
H04L12/26 |
主分类号 |
H04L12/26 |
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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