The logs on my N4032F (6.5.4.18) are filling up with the following and I'm not sure how serious they are, nor how to resolve:

<189>  General[pimsmMapTask]: l7handle.c(180) 20978 %% NOTE
HANDLE LIST : handle list allocation exceeded
<189> PIMSM[pimsmMapTask]: pimsmsgrpttree.c(237) 20977 %% NOTE PIMSM (S,G,RPt) table max limit 1024 reached and cannot accomodate any further routes. PIMSM multicast route table (S,G,RPt) has reached maximum capacity and cannnot accommodate new registrations anymore.