DNA Center Multi Site Redunancy

[chris_funa]

Hello all, 

Looking through the Admin and Install guides for DNAC, I see that HA clustering is available, but only if the 3 nodes are in the same subnets and are in the same data center. 

How does on achieve multi site redundancy for DNAC? Is it just not that big of a deal if the HQ site goes down and DNAC is unavailable? Would we set up multiple clusters or perhaps multiple standalone servers?

These are just questions as we don't have DNAC implemented. I'm just curious. 

Thanks

[Farhan Mohamed]

Multisite redundancy is not supported as of now with DNAC, only 3 node cluster is supported as of now. Multi-host cluster with even 5 and 7 nodes are also not supported as of now. If this does get supported i will update you.

[chris_funa]

Farhan, 

Thank you for your input.

So I assume it wouldn't be too big of an issue if we had a site outage for a while?

I guess the DR plan would be to restore the devices and configs from backups if the data center became destroyed somehow? 

[jedolphi · Accepted solution]

Hello Chris,

If DNA Centre is down then the SD-Access networks continue to forward packets as normal. DNA Centre is not involved in any routing / switching decisions.

Yes, you are correct, you could restore from backup to another DNA Centre if required. If you speak with your account team (Cisco AM or SE) then there is some manual backup/restore strategies they can share with you that will serve as a stopgap until automatic inter-DC DNA Centre high availability exists.

Regards, Jerome

[chris_funa]

Thank you! This was exactly the info I needed!