cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
6858
Views
0
Helpful
1
Replies

switch 2960: PLATFORM_ENV-3-LOOPBACK_PORT_POST_ERR

gdspa
Level 1
Level 1

Hi all,

we have some problems on some ports of a 2960.

We have this message when we try to enable them:

PLATFORM_ENV-3-LOOPBACK_PORT_POST_ERR: Gi0/2 can't be brought up because it failed POST in Loopback test.

On Cisco site, as reccommended action I find LOG_STD_SH_TECH_ACTION. What does it mean? To check sh tech of the switch?

If yes, what should I control in it?

2 days ago switch switched off because of some test on current. Can it cause problems on single ports of the switch?

1 Reply 1

Peter Paluch
Cisco Employee
Cisco Employee

Hello,

I am afraid there is not much you can do. If the problem persists even after you completely power down the switch, let it rest for a couple of minutes and then restart it (watch closely the POST messages on the console during the bootup to see if there is any failed test!) then probably the switch got damaged in the process of current testing, and is fit for replacement.

Best regards,

Peter

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Review Cisco Networking products for a $25 gift card