Cisco cml hardware requirements

[slothmless]

Hi members,

I have a laptop with the following hardware specifications: i5 1035g1 ( 4 cores 8 threads ) 16 Gb ram I want to run cml on the laptop with personal licence ( under 20 nodes ) and I have a couple of questions. Your advice is appreciated

The minimum requirement says 4 physical cores are needed. Does that mean if anything less than 4 physical cores, the vm machine won’t spin up?

2 the cpu can assign a maximum of 32 Vcpu right? ( 4 cores x 8 threads).

3 is my laptop good enough for running cml ? I’m looking to run some iosv iosvl2 dhcp/aaa server.

Thanks

[Torbjørn]

The minimum requirements are mostly a recommendation, I believe you will be able to start up with even less - but it will pretty much be unusable. Are you planning to run CML as a VM on the laptop you mention? If so I believe you should be looking into running it on another machine. If you are planning to run it bare metal it you should be able to spin up a few iosvl2 nodes without issues.

When it comes to cores vs threads, you should think about it as having 8 cores that all processes will share. It does not mean that you get 32 vCPU available to use for virtualization.

[Martin L]

I have not tried the latest CML but I were able to run previous CML on my old laptop Intel i5 mobile with 16 GB RAM; Unfortunately I did not have enough RAM to run more CML devices, nor CML version had IOL images. Old  iosvl2 images needed to much RAM.  Hence, I believe Cisco added this IOL which was restricted in the past.   

The new version comes with IOL images which need very little resources; you should be able to run 8 IOL comparing to older version iosvl2 or IOSv L3 routers. IOL is the key here; it needs very little to run.

You won't be able to run "big or hog" images like XRv, Nexus, any 64-bit versions.

For more info u should go to CLN, CML sub-forum. see https://learningnetwork.cisco.com/s/topic/0TO3i00000094ZjGAI/cisco-modeling-labs-personal-community

also, check #8 What resources are required in CML Doc at https://developer.cisco.com/docs/modeling-labs/2-7/faq/#reference-platform-and-images-questions 

Regards, ML
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