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How to stop <Erro:Kern.IPv4Mc.Error> Slot-3: Unable to Del IPmc sender entry s,G,v=10.221.140.131,239.255.255.250,140 IPMC 33 flags 8000 unit 1, Entry not found log message appaering on BD switches

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TitleHow to stop <Erro:Kern.IPv4Mc.Error> Slot-3: Unable to Del IPmc sender entry s,G,v=10.221.140.131,239.255.255.250,140 IPMC 33 flags 8000 unit 1, Entry not found log message appaering on BD switches
Objective
08/24/2016 15:52:50.89 <Erro:Kern.IPv4Mc.Error> Slot-3: IPmc sender entry s,G,v=0,ef020e2f,169 IPMC 33 was not added to all switching resources rc -4
<Erro:Kern.IPv4Mc.Error> Slot-3: IPmc sender entry s,G,v=0,ef020c81,138 IPMC 33 was not added to all switching resources rc -4
<Erro:Kern.IPv4Mc.Error> Slot-3: Unable to Del IPmc sender entry s,G,v=10.221.140.131,239.255.255.250,140 IPMC 33 flags 8000 unit 1, Entry not found
<Erro:Kern.IPv4Mc.Error> Slot-3: Unable to Del IPmc sender entry s,G,v=10.221.140.91,239.255.255.250,140 IPMC 33 flags 8000 unit 1, Entry not found
<Erro:Kern.IPv4Mc.Error> Slot-3: Unable to Del IPmc sender entry s,G,v=10.221.140.24,239.255.255.250,140 IPMC 33 flags 8000 unit 1, Entry not found


it appears that the multicast hardware table is unnecessarily populated with a number of entries (As shown in the above output), possibly created by SSDP (Simple Service Discovery Protocol, 239.255.255.250) running on clients by default.
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Environment
  • Black Diamond switches
  • All EXOS Platform
Procedure
Since all the error messages are related to SSDP (239.255.255.250) multicast entries, the following command (if SSDP is not in use) will help optimize the mulitcast hardware table by grouping SSDP multicast entries and reprogramming them in the hardware table.

# configure forwarding ipmc lookup-key group-vlan
# clear igmp snooping


The above command also is useful in stopping the reported multicast continuous log messages appaering on BD switches.
 
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