POST Error

[Nishant Patil]

LOOPBACK_PORT_POST_ERR: Fa0/1-24 can't be brought up because it failed POST in Loopback test

We are getting the above error on all the ports of the switch. We have done the factory restart then to we are unable to troubleshoot.

Model: C2960-24TC-L

[Leo Laohoo]

Post the complete output to the following command: 

show post

[Nishant Patil]

POST: CPU MIC register Tests : Begin
POST: CPU MIC register Tests : End, Status Passed

POST: PortASIC Memory Tests : Begin
POST: PortASIC Memory Tests : End, Status Passed

POST: CPU MIC interface Loopback Tests : Begin
POST: CPU MIC interface Loopback Tests : End, Status Passed

POST: PortASIC RingLoopback Tests : Begin
POST: PortASIC RingLoopback Tests : End, Status Passed

POST: PortASIC CAM Subsystem Tests : Begin
POST: PortASIC CAM Subsystem Tests : End, Status Passed

POST: PortASIC Port Loopback Tests : Begin
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 2
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 3
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 4
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 5
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 6
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 7
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 8
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 9
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 10
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 11
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 12
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 13
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 15
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 16
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 17
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 18
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 19
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 20
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 21
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 22
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 23
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 24
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 25
POST: PortASIC Port Loopback Tests : End, Status Passed

[Leo Laohoo · Accepted solution]

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@Nishant Patil wrote:

POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 2
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 3
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 4
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 5
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 6
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 7
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 8
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 9
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 10
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 11
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 12
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 13
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 15
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 16
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 17
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 18
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 19
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 20
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 21
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 22
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 23
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 24
POST: Failed PortPhyLoopback Packet Test asic_index 0 port_hardware_index 25

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Switch is dead.

[Nishant Patil]

Any other solution for this?