[j-nsp] RPD event M20

[Juniper]

Hello there,

This message has appeared in the log of our M20. It is not the first 
time it occurs and we are quite worried. The average CPU consumption is 
4% and just at the time the message appeared on the log, we found 
increases up to 100% and an increase in temperature of 6 º in the 
routing-engine 0. This router works with two logical routers and receive 
full-routing of three different providers. We also have configured and 
IS-IS  and IBGP sessions.

May 4 11:43:03 xxx01.yyy2.abc-d.net LEV[2625]: RPD_SCHED_SLIP: 7 sec 
scheduler slip, user: 3 sec 306043 usec, system: 0 sec, 5732 usec

We do not know what could be the problem because we have not detected 
any event bgp, routing update, addition of new machines, etc.
Do you have any idea what may be the reason for this high cpu usage?

Thanks in advance,

Matthew