DNAC Cluster 2 Device

[longdv]

Hi Everyone

I have 2 ADNC devices and 2 ISE devices located in DC, DR. Can I cluster between 2 DNAC and 2 ISE and how? Because currently the company's website is asking for cluster 3 devices

[balaji.bandi]

They are 2 different Service 

DNAC with 2 node you can use DR deployment, you need witness node as VM.(as 3rd node to monitor DR Setup)

https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/2-3-3/admin_guide/b_cisco_dna_center_admin_guide_2_3_3/b_cisco_dna_center_admin_guide_2_3_3_chapter_0111.html

https://www.youtube.com/watch?v=QOCQwR8iq3g

ISE 2 Node deployment check below :

https://www.cisco.com/c/en/us/td/docs/security/ise/3-2/install_guide/b_ise_installationGuide32/b_ise_InstallationGuide32_chapter_1.html

[longdv]

Hi 

As far as I know, Cisco no recommend DNAC with 2 Site. Because when DNAC and VM DNAC at the DC are down, DNAC with DR cannot manage the device

Can you explain it to me?

Thanh you

[balaji.bandi]

I am only suggesting DNAC DR deployment. I am not sure you can Mix DNAC appliance with VM DNAC.

DNAC appliance + DNAC Appliance + DNAC Witness was the suggestion.

You should look at the design of reachability of both DC and latency requirement of DR.

Look at the Failure scenarios and IP level connectivity  to manage the devices.

[longdv]

DC and DR are directly connected to each other with 2 100G links. When I create a Cluster between 3 DNAC (2 with DC (1 DNAC hardware 1 VM DNAC and 1 hardware with DR), will there be any problems?

[balaji.bandi]

i do not believe you can mix appliance and VM as per i know last i checked. anything change on new release check the release notes.

check HA requirement :

https://www.ciscolive.com/c/dam/r/ciscolive/emea/docs/2023/pdf/BRKOPS-2161.pdf

https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/2-3-4/ha_guide/b_cisco_dna_center_ha_guide_2_3_4.html

[longdv]

Hi

Thank you
My problem has been resolved

[balaji.bandi]

if no further information required, make it as close to help to refer other community members.