There is one issue opened https://github.com/FRRouting/frr/issues/5236. I will get back on this.

Thanks

Santosh P K

From: frog <frog-bounces@lists.frrouting.org> on behalf of neeraj kharbanda <hashbangtech@gmail.com>
Date: Friday, 6 March 2020 at 1:31 PM
To: "frog@lists.frrouting.org" <frog@lists.frrouting.org>
Subject: [FROG] high cpu usage because of 100s of ping to ospf peers by user frr

Hi,
i'd got a basic setup of ospf with 5 6 ospf neighbours. Everyon now and then there is very high cpu usage. Htop shows 100s of ping to ospf peers by user frr (just 5 to 8 peers). Other peers are mikrotik. Makes the system instable till kill all the pings. 
Its a pppoe server with 4000+ pppoe interfaces. Kindly help in resolving the problem.  

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Thanks and Regards

From Chaos to Control
Neeraj Kharbanda

+919911145461