Description

The following syslog messages are seen:

RPD_IGMP_SSM_REPORT_MODE_INVALID  Interface vlan.<>: Group record with invalid mode for SSM group 232.0.0.1 ignored
RPD_IGMP_SSM_REPORT_MODE_INVALID  Interface vlan.<>: Group record with invalid mode for SSM group 232.0.0.1 ignored
RPD_IGMP_SSM_REPORT_MODE_INVALID  Interface vlan.<>: Group record with invalid mode for SSM group 232.0.0.1 ignored
RPD_IGMP_SSM_REPORT_MODE_INVALID  Interface vlan.<>: Group record with invalid mode for SSM group 232.0.0.1 ignored

 

  • SSM is enabled for groups but the IGMP reports do not include multicast source.

  • Configuration includes ssm-group for 239.x.x.x groups and reports received from receivers are IGMPv2 packets.

  • These packets are counted under the IGMP statistics counter "IGMP v3 mode not applicable for SSM”

Solution

According the document on Juniper's Systom Log Explorer , the description of the syslog message 'RPD_IGMP_SSM_REPORT_MODE_INVALID' states that this appears when an IGMP report containing a group record with mode MODE_IS_EXCLUDE or CHANGE_TO_EXCLUDE_MODE was received for a group in the SSM range and was ignored. This message reports an event, not an error and the severity level of this message is 'notice'.

To suppress this 'notice' level syslog message, refer to KB22177 - How to filter two or more specific messages from being written to the syslog file [juniper.net] .