Hi dears,
I was upgrading a cisco WS-C3750X-48 from version 12.2(58)SE2 to version 15.0(2)SE8 , everything went well (IOS extract , microcode upgrade ,...) , then during the POST the following error happened and the switch kept reloading :
POST: PortASIC Port Loopback Tests : Begin
POST: Failed PortPhyLoopback Packet Test asic_index 1 port_hardware_index 19
POST: Failed PortPhyLoopback Packet Test asic_index 1 port_hardware_index 18
POST: Failed PortPhyLoopback Packet Test asic_index 1 port_hardware_index 23
POST: Failed PortPhyLoopback Packet Test asic_index 1 port_hardware_index 22
POST: PortASIC Port Loopback Tests : End, Status Failed
Error: ASIC/PHY POST failed. Cannot continue.
%Software-forced reload
I have tried to boot the IOS from the recovery mode, I made flash_init the the boot commands , but it's always facing the same error in POST .
what might be the problem please ?
