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What is difference between DNAC-witness-2.1.2.4.ova and normal DNAC?

interfacedy
Enthusiast
Enthusiast

Hello, What is difference between DNAC-witness-2.1.2.4.ova and normal DNAC? What does that mean with witness? Thanks

1 Accepted Solution

Accepted Solutions

PabMar
Cisco Employee
Cisco Employee

Hi interfacedy,

Just had a look at the downloads page for 2.1.2.4, the .ova (~2.5GB file size) is the witness and you also have the .iso (~22.8GB file size) which is the DNA Center image.

Regards.

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4 Replies 4

PabMar
Cisco Employee
Cisco Employee

Hi Interfacedy,

The DNA Center witness is used when deploying DNA Center in Disaster Recovery.

The Witness is installed on a 3rd site, it is used to avoid a split brain scenario. DNA Center uses the witness site to arbitrate between the active and standby sites, allowing only one active site at any given time.

Hope that helps.

Regards.

interfacedy
Enthusiast
Enthusiast

Thanks! So witness is not main component. Looks like dnac cannot work without main component(ios). Why we only can see witness in cisco download website and cannot see main ios? Where is it?

 

 

PabMar
Cisco Employee
Cisco Employee

Hi interfacedy,

Just had a look at the downloads page for 2.1.2.4, the .ova (~2.5GB file size) is the witness and you also have the .iso (~22.8GB file size) which is the DNA Center image.

Regards.

interfacedy
Enthusiast
Enthusiast

Thanks! Looks like home lab cannot run it due to its ram requirement

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