ISE VM Lincense Sizing and Scale-ability question

[zeryu]

Hi Experts,

Recently I have found lots of info which is a mismatch between ISE VM license and the performance, hope someone can clarify my confusion about this. Thanks very much in advanced!

First I have checked the administrator guide for ISE 2.4 and ISE 2.6, in the Cisco ISE License section, there is a chart for VM resource, seem they are the same for ISE 2.4 and ISE 2.6. So my first question is this like ISE VM licenses, for example R-ISE-VMM-K9, is there any difference ordering for different version of ISE? (In other words, is there any specific medium VM ise license for 2.4 and 2.6?)

Second, like the chart in the administrator guide and the ordering guide, there are differences between CPU number, and in the administrator guide why the resource is the minimum but actually the number is maximum?

Third, Another chart finds in the virtual machine requirements, clearly the medium license is not enough for an medium device like SNS3655, so if the customer buys one VM medium license for one VM since the VM license restricts that the resource for one VM can not match up with the resource is SNS hardware, the scale-ability should not match the SNS3655 as well am I right?

[Damien Miller · Accepted solution]

It looks like the documentation could use some updating. The first and second tables were correct at the time the VMS/VMM/VML licenses were released and 3515/3595 templates were all that was available. As you have pointed out, the charts don't align now that 36x5 templates are available.

The first and second tables don't line because of changes to the 3515 and 3595 templates. For a while the VM templates were provisioned 6 and 8 vcpu respectively, but in 2.4 they are actually provisioned 12 and 16 vcpu.

To help cut the confusion, here are how the VM licenses line up to the the available deployment templates.
Small - 3515 or 3615
Medium - 3595 (64 GB) or 3655
Large - 3595 (256 GB) or 3695

[zeryu]

Noted with thanks!

[Mohammed al Baqari]

I didn't get the question exactly but my advise is to refer to Cisco Live
session BRKSEC-3432. This will have the answers to all your queries about
sizing and performance. It will be updated to the lasted numbers of ISE and
versions.

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