发明名称 |
LOOP DETECTION AND REPAIR IN A MULTICAST TREE |
摘要 |
Systems, methods and transitory computer-readable storage media for detecting one or more loops in a multicast tree. The method includes calculating a multicast tree radius for a first multicast tree, the multicast tree radius representing a maximum number of hops from a root node to a furthest edge node in the first multicast tree, forwarding, by the root node, a first packet to each edge node within the first multicast tree, the first packet having a time-to-live (TTL) value equal to twice the first multicast tree radius, receiving, at the root node, a copy of the forwarded first packet, and determining an existence of a loop in the first multicast tree based at least upon receiving the copy of the forwarded first packet. |
申请公布号 |
US2015124587(A1) |
申请公布日期 |
2015.05.07 |
申请号 |
US201414329729 |
申请日期 |
2014.07.11 |
申请人 |
Cisco Technology, Inc. |
发明人 |
Pani Ayaskant |
分类号 |
H04L12/24;H04L12/18;H04L12/733;H04L12/26 |
主分类号 |
H04L12/24 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
calculating a multicast tree radius for a first multicast tree, the multicast tree radius representing a maximum number of hops from a root node to a furthest edge node in the first multicast tree; forwarding, by the root node, a first packet to each edge node within the first multicast tree, the first packet having a time-to-live (TTL) value equal to twice the first multicast tree radius; receiving, at the root node, a copy of the forwarded first packet; and determining an existence of a loop in the first multicast tree based at least upon receiving the copy of the forwarded first packet. |
地址 |
San Jose CA US |