Hello, yes the  ISP can advertise your Public IP and AS No , but routing of Public statically am not sure what you mean ?Regards

Hi Michael,                     no this would not be a problem as long as your boot variable points to the 15.X version.Regards

Hi Fawad, the easiest method would be to configure IGMP snooping in your switched network it does not really need much configuration.http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipmulti_igmp/configuration/12-2sx/imc-igmp-12-2sx-book/imc_constr_sw...

Hello Kris,                The Secure is a field which indicates if  you have Port security enabled on the Port, will show a T and NTFY signifies NotifyI hope this answers your queryRegardsHerman