When the switch receives leave message on a port, it
sends group specific query to check if there are any other
interested receivers for the group. This attribute defines
the maximum number of queries sent by the switch before deleting
the port from the group membership information in the forwarding
database. If the maximum retry count exceeds 'sysSnoopRetryCount',
then the port will be deleted from the multicast group membership
information in the forwarding database and received leave message
will be forwarded onto the router ports if there are no
interested receivers for the group.