Friday 22 December 2017

[Workaround and Fix] - Power given, but Power Controller does not report Power Good - Cisco 2960X Stack


If you hit this page, I think you have encountered an issue similar to what I have faced in my production environment yesterday. But still let me give you a brief about what I had seen so that you can compare it with your problem and apply the fix if needed.

Problem:-

Couple of PCs which were connected to our access layer switch WS-C2960X-48LPS-L were continuously flapping. It was not the link flap, but a POE related flap. Look at the strange alerts on the interfaces,

%ILPOWER-3-CONTROLLER_PORT_ERR: Controller port error, Interface Gi1/0/32: Power given, but Power Controller does not report Power Good
%ILPOWER-7-DETECT: Interface Gi1/0/32: Power Device detected: IEEE PD
%ILPOWER-5-POWER_GRANTED: Interface Gi1/0/32: Power granted
%ILPOWER-5-IEEE_DISCONNECT: Interface Gi1/0/32: PD removed
%ILPOWER-7-DETECT: Interface Gi1/0/32: Power Device detected: IEEE PD

Solution:-

This just kept happening again and again. Though the device doesn't need POE, it appeared to be related to POE negotiation. So as a workaround I just disabled POE on the interface using below command after which the alerts just disappeared.

Switch(config-if)int g1/0/32
Switch(config-if)#power inline never
And when we checked with Cisco for the solution, they said it is a hardware fault and raised RMA for the device. 

I hope this piece of information was useful for you.

GNS3 and Palo Alto Integration - Required download links


Last week I tried to setup Palo Alto in Vmware workstation and link it with GNS3 software. In that process, I found below download links to be useful and I wanted to share it with you all.

GNS3 Palo Alto Support Page

Here is the PA GNS3 appliance support page:-
https://www.gns3.com/news/article/new-appliance-supported-palo-alt

Palo Alto Vmware Download Images

PA-VM-ESX-8.0.0.ova
https://mega.nz/#!kM9V0BSZ!q_QgVseqc5diEweOEF5zkzINYFEJZMA6Xx1jK00Zn1o

PA-VM-KVM-7.1.0.qcow2
https://mega.nz/#!RdsBXKrY!Z048jvOma_ozQD9_s18OzSB2RQ3cURnjPnEu4Magk7g

PA-VM-KVM-7.1.4.qcow2
https://mega.nz/#!pdE0FbaZ!_ifg2K_WDtySPEmwMMMzezSgF0Hp0kLKP-k9NDrtxSY

PA-VM-KVM-8.0.0.qcow2
https://mega.nz/#!1c0yTaaK!I-N_mGRg_M9H-Mlhh-7alOeQzPCj7GysJZnwpSFGT-M

PA-VM-ESX-7.0.1-u1.ova
https://mega.nz/#!hFs3CY6S!aMuvQCNQpZ3G2mm8GEYXaOdxvOrjGlp13MBeTD_rI88

PA-VM-ESX-7.1.0-u1.ova
https://mega.nz/#!EMlFXJzT!-vwvVjZZzrVnFb-ks7Lh7Xgi5rneVaz2Gdc6AQpthnM

Leave a comment if you think this is useful and let me know if you are looking for any other such links.