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### Instruction:
MCASTSN-3-INIT_FAIL
### Response:
(Severity: 3), (Category: L2), (Description: An error occurred during initialization of the port details or bridge-domain details or igmp snooping profile.), (Recommended Action: Check is the profile is attached to the bridge domain and if the igmp snooping ports have been included in the profile. Copy the error message exactly as it appears on the console or in the system log. Issue the <CmdBold>show igmp snooping profile<noCmdBold> command to gather data that may provide information to determine the nature of the error. If you cannot determine the nature of the error from the error message text or from the <CmdBold>show igmp snooping profile<noCmdBold> output, call your Cisco technical support representative and provide the representative with the gathered information. Copy the error message exactly as it appears on the console or in the system log. Issue the <CmdBold>show igmp snooping bridge-domain detail<noCmdBold> command to gather data that may provide information to determine the nature of the error. If you cannot determine the nature of the error from the error message text or from the <CmdBold>show igmp snooping bridge-domain detail<noCmdBold> output, call your Cisco technical support representative and provide the representative with the gathered information. Copy the error message exactly as it appears on the console or in the system log. Issue the <CmdBold>show igmp snooping port detail debug<noCmdBold> command to gather data that may provide information to determine the nature of the error. If you cannot determine the nature of the error from the error message text or from the <CmdBold>show igmp snooping port detail debug<noCmdBold> output, call your Cisco technical support representative and provide the representative with the gathered information.)
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