[e-nsp] multicasts errors - what could that mean ?

[Marcin Kuczera]

2x x650 connected with single 40G link in a stack.
EXOS 15.3.4.6

Logs as below, no complains from customers at the moment.
What could that mean ?

Marcin


10/28/2014 09:16:33.08 <Erro:Kern.IPv4Mc.Error> Slot-2: Unable to Add 
IPmc sender entry s,G,v=a9fec53e,e00000fc,3850 IPMC 116 flags 8000 unit 
2, Operation failed
10/28/2014 08:30:24.55 <Erro:Kern.IPv4Mc.Error> Slot-2: Unable to Add 
IPmc sender entry s,G,v=c15d5e56,e00000fc,3073 IPMC 116 flags 8000 unit 
2, Operation failed
10/28/2014 08:10:19.92 <Erro:Kern.IPv4Mc.Error> Slot-2: Previous message 
repeated 2 additional times in the last 546 second(s)
10/28/2014 06:59:02.34 <Erro:Kern.IPv4Mc.Error> Slot-2: Unable to Add 
IPmc sender entry s,G,v=c15d5e56,e00000fc,3073 IPMC 94 flags 8000 unit 
2, Operation failed
10/28/2014 05:03:56.01 <Erro:Kern.IPv4Mc.Error> Slot-2: Unable to Add 
IPmc sender entry s,G,v=ac8c8da,efef0281,812 IPMC 131 flags 8000 unit 2, 
Operation failed