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vSRX in GNS3

  • 1.  vSRX in GNS3

    Posted 02-05-2019 21:09

    Hi Guys, 

    Hope someone can help me with this. Spend 8 hours to solve but failed. Basically trying to setup a vSRX lab in GNS3, it slowed down my machine horribly, always at 99% CPU usage - almost unusable now. 


    Full details:

    vSRX - junos-vsrx-12.1X47-D15.4

    VirtualBox 5.2

    GNS3 1.4.4

    OS is Windows 10 on esxi

    Allocated 4 CPU 3.75

    RAM 12GB


    Created 2 vSRX, connected via ge-0/0/0 -> ge-0/0/0

    Result: Both srx(virtualbox vm) is running at 99% CPU usage. 


    Googled and found people advising idle-pc setting, but i dont see any such feature in GNS3(when i right click on my Junos device). 


    Could you please help here? Is there any other alternatives to avoid high CPU usage, or even alternative to GNS3? Any advise for a good lab setup for JNCIA?







  • 2.  RE: vSRX in GNS3

    Posted 02-05-2019 21:21

    Since you have ESXi setup, you can directly deploy vSRX on it.


  • 3.  RE: vSRX in GNS3

    Posted 02-05-2019 21:50


    In 2019, Juniper vLabs (free after registering) are the way to go