Also note that most ex switch models come with basic hardware support. So when you get the denied access page go to the support portal link there and open an admin service case requesting download access for your ex switches. Put the serial numbers in the ticket. If you qualify the access will be granted.
Steve Puluka BSEET - Juniper Ambassador IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP) http://puluka.com/home