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Cisco ACI Simulator 6.0-3d on error: SHA digest of file acism-6.0-3d-d

tomy.tim
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Cisco ACI (Application Centric Infrastructure)

cisco aci how to.png

 General Steps for the Installation of Cisco ACI Simulator:

  1. Download the OVA:
    - Download the OVA file from the official Cisco website or authorized source.

Example of access with authorized login and password.

https://software.cisco.com/download/home

 

Software_Download_Cisco_Systems.png

 

  1. Integrity Verification:
    - Verify the integrity of the OVA file using the SHA digest provided on the Cisco website.
  2. Installation Notes

- Cisco ACI Simulator software is preinstalled on the Cisco ACI Simulator appliance. When you start the Cisco ACI Simulator appliance for the first time, the Cisco APIC console presents a number of initial configuration options. Refer to the Cisco ACI Simulator VM Installation Guide for information on configuration options.

The ISO image is not supported. You must use the OVA image.

Compatibility Information

This version of the Cisco ACI Simulator appliance is compatible with the following software:

  • For supported VMware vCenter and vShield versions, see the ACI Virtualization Compatibility Matrix.
  • Web browsers for the Cisco ACI Simulator appliance GUI:
        - Chrome version 35 (minimum) on Mac and Windows.
        - Firefox version 26 (minimum) on Mac and Windows.
  • The Cisco ACI Simulator appliance does not support Smart Licensing.
  1. Installation in VMware Workstation:
    - Open VMware Workstation and select "File" > "Open". Select the downloaded OVA file.
    - Follow the steps in the import wizard to complete the installation.
  2. Network Configuration:
    - Configure the network interfaces according to your test requirements.
  3. Instance Startup:
    - Start the ACI simulator instances. When performing the installation I got the following error: SHA digest of file acism-6.0-3d-disk1.vmdk

tomytim_2-1700852372327.png

 

The error "SHA digest of file acism-6.0-3d-disk1.vmdk" indicates that there is a discrepancy in the SHA digest value of the file "acism-6.0-3d-disk1.vmdk". This discrepancy could be due to possible file corruption during download or some other file integrity related issue.

7. Here are some steps you can take to try to solve this problem:

Next, I will provide you with the steps to change the SHA Digest of the OVA file using Windows PowerShell. It is important to note that in my case, I have VMware Workstation installed on Windows 10 Professional. Before I start with the process, I will show the location of the file with .ova extension and the folder where I will perform the installation. This example is specific to my setup; however, in your case, you will be the only one who knows the path to the OVA file on your computer. The path would be D:\vmware cisco aci, as shown in Figure 1.

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Figure1

Here are the following PowerShell command lines to follow to modify the SHA file in the .OVA file extension.

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Figure 2

8. After running the program as administrator, we will proceed with the following 4 steps:

  1. Enter the commands exactly as shown in Figure 1, making sure to include the path where our acisim-6.0-3d.OVA file is located. Don't forget to put the quotation marks and follow the command enumeration.
  2. Verify that you are in the correct path and run the 'dir' command to list the contents of the folder.
  3. Once inside the folder, run the tar -xvf .\acisim-6.0-3d.ova command, following the example in Figure 3.
  4. Now, just wait for the four files to be generated, as shown in Figure 3.

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Figure 3

9. Then execute the command "Get-FileHash * -Algorithm SHA1".

tomytim_7-1700853113735.png

In PowerShell it is used to calculate and display the SHA-1 hash value of the files in the current directory.
So, when you run this command, you will get the SHA-1 hash value of each file in the current directory. This hash value is a unique, fixed representation of the file data and can be used to verify the integrity of files or to compare files.
Remember that the delay time depends on the hardware you have in my case everything was between 5 to 10min waiting time to generate the files.

10. Now we will proceed to duplicate the file with extension .ovf and rename it with a new name; in this example, it will be acisim-6.0-3d - test.ovf, as shown in Figure 5, 6, and 7. Subsequently, we will delete the file with extension .mf, which in our case is called acisim-6.0-3d.ovf.

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Figure 5

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Figure 6

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Figure 7

11. Once this procedure is completed, the folder will host the following three files.

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Figure 8

12. Import the OVA file into VMware Workstation using the acisim-6.0-3d - test.ovf file. VMware Workstation will start, automatically creating a virtual machine with all predefined settings. No additional settings will be necessary. Carefully follow the directions provided in Figures 9, 10 and 11.

vmware.jpg

 

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Figure 9

 

 

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Figure 10

13. After completing the process of importing the .ova file, we will obtain an image similar to the one shown in Figure 11.

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Figure 11

14. Now, click on "Power on this virtual machine" to start the newly created virtual machine. This time, the process will be successful, overcoming the difficulty that motivated the creation of this article. You may experience some delay, depending on the specifications of your machine. Retain the default settings where necessary, with the exception of the IP address and gateway. Do not modify Infra VLAN 4, as it is crucial for switch discovery.

preparing.jpg

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 Figure 12

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Figure 13

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 Figure 14

15. Log into the graphical user interface (GUI) using the password set in step 14.

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 Figure 14

gui1.jpg

  Figure 15

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 Figure 16

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  Figure 17

I am providing references to perform the basic configurations of a fabric in ACI. If you have questions or want to share your knowledge to improve this article, do not hesitate to send me a message. I welcome any collaboration and suggestions that contribute to enrich this content.

If you enjoyed the article, don't forget to leave your like or kudos!

 

Reference:

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/white_papers/Cisco-ACI-Initial-Deployment-Cookbook.html

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/3-x/simulator/install_vm/b_Cisco_ACI_Simulator_VM_Install_Guide.html

https://www.cisco.com/c/dam/en/us/td/docs/Website/datacenter/aci/virtualization/matrix/virtmatrix.html

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/aci/apic/sw/3-x/simulator/install_vm/b_Cisco_ACI_Simulator_VM_Install_Guide.html

https://www.cisco.com/c/en/us/td/docs/dcn/aci/apic/6x/release-notes/cisco-aci-simulator-release-notes-603.html

https://www.ciscopress.com/articles/article.asp?p=3150964&seqNum=4

https://www.cisco.com/c/en/us/support/cloud-systems-management/application-centric-infrastructure-simulator/products-installation-guides-list.html

 
Tomy Tim
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