发明名称 |
OSPF nonstop routing (NSR) synchronization reduction |
摘要 |
<p>A network element is configured to reduce the synchronization costs for implementing Open Shortest Path First (OSPF) Nonstop routing (NSR). The reduced synchronization costs are achieved by reducing the number of acknowledgement messages that are needed to be sent though reliable inter-process communication (IPC) between the active OSPF instance and the standby OSPF instance. The number of acknowledgement messages is reduced by tracking the link state advertisements (LSAs) that have been sent by the active OSPF instance to the standby OSPF instance and by the standby OSPF replying with an acknowledgement of only the last LSA in a group of LSAs received from the active OSPF instance, where the group can have a variety of boundaries such as a group of LSAs in an IPC message. This avoids having a significant number of acknowledgement messages sent through the IPC.</p> |
申请公布号 |
EP2575304(A1) |
申请公布日期 |
2013.04.03 |
申请号 |
EP20120184029 |
申请日期 |
2012.09.12 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) |
发明人 |
CHEN, ING-WHER;LU, WENHU;LINDEM III, ALFRED C. |
分类号 |
H04L12/707;H04L12/703;H04L12/773;H04L12/775 |
主分类号 |
H04L12/707 |
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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