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December 7, 2012

HyperV to VMware conversion

Filed under: VMware Related — Tags: , , — Syed Jahanzaib / Pinochio~:) @ 4:53 PM

Howto convert Hyper-V hosts to Vmware ESXi

Task: We want to convert one of our host server running on Hyper-V (installed on Windows 2008 R2 CORE edition), you can use Vmware Vcenter Converter utility to perform this action.

First Download Vmware Vcenter convertetr 5.x from following location.
You must have vmware account to download the utlity, you can rgister it free.

After installation Done. Execute it. You may see following screen.
As showed in the image below . . .

1- vmconverter


In Source Type , Select HYPER-V
In Server, type your Hyper-V IP
In User Name/Password , type your Administrator ID and password
and click NEXT to continue . . .
As showed in the image below . . .

2- convert-hyperv-machione

If you receive the following error
Unable to contact the specified host ‘x.x.x.x’ . The host might not be available on the network, there might be a network configuration problem, or the management services on this host are not responding
then disable the firewall on HYPERV Windows 2008 by using following command (at hyper v server command prompt)

netsh firewall set opmode disable

Now it will ask you for the agent deployment,
click YES to continue.
As showed in the image below . . .

3- agent



In next screen of  SOURCE SERVER , It will give you the list of machines hosted on source Hyper-V server.
Select your desired machine ,
and click NEXT to continue
As showed in the image below . . .

4- select source-vm-hyperv



In Next Screen of  DESTINATION SYSTEM , select the destination VMWARE ESXi Server
As showed in the image below . . .

5- select destination server.


In the next screen of  DESTINATION VIRTUAL MACHINE , Click NEXT to continue (Or you can change the machine name label here)
As showed in the image below . . .

6- select name.


In the next screen of  DESTINATION LOCATION , Select the datastore location (the drive where you want upload the vm)
As showed in the image below . . .

7- select datastore.

In the next screen , it will show you all the options before finally start converting, review all the options and modify if any required. then Click NEXT , and then FINISH to start converting the machine
As showed in the image below . . .

8- final



Finally it will start conversion of the hyper v machine into Vmware Esxi.
As showed in the image below . . .

9- status.


Syed Jahanzaib

Cisco 3750: Howto enable err-disabled ports

Filed under: Cisco Related — Tags: , , — Syed Jahanzaib / Pinochio~:) @ 2:09 PM

Personnel Reference Guide:


Errdisable is a feature that automatically disables a port on a Cisco Catalyst switch and is supported on most Catalyst switches running the Cisco IOS software.

The Errdisable error disable feature was designed to inform the administrator when there is a port problem or error.  The reasons a catalyst switch can go into Errdisable mode and shutdown a port are many and include:

  • Duplex Mismatch
  • Loopback Error
  • Link Flapping (up/down)
  • Port Security Violation
  • Broadcast Storms
  • etc

When a port is in error-disabled state, it is effectively shut down and no traffic is sent or received on that port. The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled.

To enable err-disabled ports on Cisco 3750 switch series. Follow the below . . .

First make telnet connection with the switch


(change the ip as required,)
Enter Password to continue.

To view Disabled Ports:

show interfaces status err-disabled


NOC_SWITCH>show int status err-disabled

Port      Name               Status                    Reason               Err-disabled Vlans
Gi2/0/10                     err-disabled         link-flap


To Enable Port:

config t
int G2/0/10
no shut

Change the interface name to match your. In above example I had two 3750-e models in stack mode. so its showing G2, you may get G1 if you have single switch.

Link flap means that the specific port continuously goes up and down. The port is put into the errdisabled state if it flaps more than four-five times in few seconds or if LOOPPBACK is detected. The common cause of link flap is a Layer 1 issue such as a bad cable, duplex mismatch.


Auto recovery of port shut dueto violation

  • errdisable recovery cause loop-back

We can enable recovery loop-back only too. This is lab environment, so to make recovery faster we will configure recovery timer 30 seconds.

  • errdisable recovery interval 30

you can enable for all reason using below command-

  • errdisable recovery cause all

Use this command to disable port security, NOT RECOMMENDED

no switchport port-security

(< You probably dont need this line, its just to disable pot security feature, I used it to perform various tests)

For more detailed and brief descriptions, please visit

Syed Jahanzaib

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