As checked for BKC6003U and BKC7740U about control plane congestion, found congested in some days as show below krub.
It related to BRD CPU load also high in the same day. So we suggest to check which board have high load such WBBP, WMPT or UTRP normally will be WMPT then can consider to upgrade krub.
Remark : Due to M2000 loaded, this counter will not be activated. We can activate to check site by site krub.