- boot connected to serial port
- keep pressing esc as the system boots up BootOS 4.2.1.0-008R (r75044)
 Base MAC Address = 00:04:96:42:14:79
 Management MAC Address = 00:04:96:42:14:84
 Board Serial Number = 0943L-00012
 PS2606 version 1, product type 2, generation 1, model 3, manuf 1059
 FPGA firmware revision 1.23
 MIPS ProcessorID 0.12.6.4
 XLR CPU_ID 0x6: 2 MIPS cores at 1.00GHz, 2x256KB L2 cache, 1+1 security coprocessors
 NOR bootstrap version 8, checksum good
 boot>
- when you get the boot prompt enter the set factory_defaults command followed by the reset command. boot> set factory_defaults
 
 This operation restores the switch to the same state as it was in when originally shipped from the factory. All configurations, licenses, dumps, keys, etc. will be deleted. Continue [y/n]:y
 
 boot> reset