发明名称 |
AUTOMATIC ESTABLISHMENT OF REDUNDANT PATHS WITH CAUTIOUS RESTORATION IN A PACKET NETWORK |
摘要 |
A method is implemented by a network device executing a local computation engine and a link state routing protocol. The local computation engine and the link state protocol support automatic establishment of redundant paths and cautious restoration in a packet network. The method includes receiving an explicit path (EP) type length value (TLV) via a link state routing protocol, executing a shortest path algorithm to obtain a shortest path for loose hops of a path identified by the EP TLV, the shortest path to be a primary path, updating a network graph to prune links of the primary path or bias links of the primary path, and calculating a backup path using the shortest path algorithm on the updated network graph. |
申请公布号 |
WO2015019309(A1) |
申请公布日期 |
2015.02.12 |
申请号 |
WO2014IB63754 |
申请日期 |
2014.08.07 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
FARKAS, JÁNOS;ALLAN, DAVID, IAN |
分类号 |
H04L12/721 |
主分类号 |
H04L12/721 |
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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