LSA Flushing Problem Mitigation in OSPF Networks

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Last updated 2017-05-04 (latest revision 2016-10-31)
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In OSPF protocol, LSAs with the LS age at MaxAge are not used in routing table calculation and MUST be flushed in the network. In some cases, the flushing of OSPF MaxAge LSAs may cause flooding storm of OSPF packets and severely impact network stability and the services provided by the network. This document specifies a backward compatible mechanism to mitigate the impact of MaxAge LSA flushing in OSPF networks.


Jie Dong (
Xudong Zhang (
Zhenqiang Li (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)