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EX4600-40F Virtual Chassis Configuration via Juniper Mist

  • 1.  EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-12-2025 13:32
    Edited by MUHAMMAD SAAD 05-12-2025 13:34

    Hello Team,

    I am trying to create a virtual chassis between EX4600 switches with the help of Juniper Mist. Can some one let me know if its possible to create a VC from Juniper Mist of this switch model. If it is, please help out and provide the steps.

    Please note,  currently my link is 10G from H3C switch and I am using the built-in QSFP ports of Juniper EX4600 to create a VC connection.

    Many thanks



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    MUHAMMAD SAAD
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  • 2.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

     
    Posted 05-12-2025 17:14

    https://www.juniper.net/documentation/us/en/software/mist/mist-wired/topics/concept/virtual-chassis-overview.html

    You can create a Virtual Chassis using the Form Virtual Chassis option on the Juniper Mist portal. The Form Virtual Chassis option applies only to the EX2300, EX4650, and QFX5120 switches as these switches don't have dedicated Virtual Chassis ports (VCPs). This option is not available to the EX3400, EX4100, EX4100-F, EX4300, EX4400, and EX4600 switches as they come with dedicated VCPs. To create a Virtual Chassis with these switches, follow the procedure in this topic:

    Configure a Virtual Chassis Using EX3400, EX4100, EX4100-F, EX4300, or EX4400.

    Hope this helps.




  • 3.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-13-2025 01:10

    Hi,

    Thanks for your reply.

    I had followed the provided link earlier but its not working. I am using built-in QSFP ports for VC connection. When switches reboot and came up, it didn't automatically shift it to VC.

    Any suggestions? or What will be the work out for this?

    Thanks



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    MUHAMMAD SAADMUHAMMAD SAAD
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  • 4.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

     
    Posted 05-13-2025 02:57

    Have you followed the following:  https://www.juniper.net/documentation/us/en/software/junos/virtual-chassis/topics/task/virtual-chassis-ex4600-cli.html

    Regards




  • 5.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-13-2025 03:22

    Hi,

    I had checked that document, but I think it refers to creating the VC connection via Manual CLI whereas our goal is to create a VC from Juniper Mist.



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    MUHAMMAD SAAD
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  • 6.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

     
    Posted 05-13-2025 03:31

    Understood, I think that for the EX4600's on the basis also that you are using the QSFP rather than the default VCP then you will have to go through the manual process to build the VC in Mist. e.g.

    1. Onboard the members with no cables attached into Mist.
    2. Manage the configuration for the members in Mist.
    3. Check s/w versions and upgrade as necessary.
    4. Add manual cli configuration for the QSFP interfaces to become VCPs.
    5. Power off the members.
    6. Cable up the members.
    7. Power on the first member that you wish to be a master.  Wait for that member to start.
    8. Power on the next member that you wish to be a backup.  Wait for that member to start.
    9. Power on the next member etc. etc.

    Regards




  • 7.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-13-2025 03:37

    Hi,

    Thanks for your reply. Basically in the datasheet it has been written that QSFP ports can become VC whereas there is no information about what ports are specifically dedicated for the virtual chassis in Juniper EX4600 datasheet.



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    MUHAMMAD SAAD
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  • 8.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

     
    Posted 05-13-2025 03:59

    Yes, you are correct, there doesn't appear to be a default set of ports for VCP, therefore you will need to configure which ports will be used as VCP via the additional CLI commands within Mist.  That way you can onboard each member without cabling and then define via cli commands in Mist which ports will be used as VCP,  and then go through the process of powering off the devices,adding the cables and then bring the devices online one by one in the required order etc.




  • 9.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-13-2025 04:05

    Hi,

    I had tested below commands in order for the switch ports to act as VC but getting errors:

    request virtual-chassis vc-port set interface et-0/1/0
    error: Interface et-0/1/0 is not a virtual chassis interface
    request virtual-chassis vc-port set interface et-0/1/1
    error: Interface et-0/1/1 is not a virtual chassis interface
    request virtual-chassis vc-port set interface et-0/0/24
    error: Interface et-0/0/24 is not a virtual chassis interface
    request virtual-chassis vc-port set interface et-0/0/25
    error: Interface et-0/0/25 is not a virtual chassis interface


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    MUHAMMAD SAAD
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  • 10.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

     
    Posted 05-13-2025 04:30

    My mistake, these are request statements, so these will need to be triggered from within the CLI on the device, rather than the cli configuration statements within Mist, as that would only support the "set ...." configuration statements.




  • 11.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-13-2025 04:36

    you are trying to say that "request virtual chassis" commands will only run via switch console cli and can't be run from Juniper Mist cli because Juniper Mist cli doesn't support request commands.
    Am I right?



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    MUHAMMAD SAAD
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  • 12.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

     
    Posted 05-13-2025 05:22

    That is correct, my understanding is that Mist supports configuration statements using "set ...." rather than operational "request ...." commands.




  • 13.  RE: EX4600-40F Virtual Chassis Configuration via Juniper Mist

    Posted 05-13-2025 06:45

    The issue has been resolved.

    Basically below commands will be used for a port to become VC and then rest of the work will be done from Mist.

    request virtual-chassis vc-port set pic-slot 'x' port 'y' local

    where,

    x refers to the slot number

    y refers to the port number



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    MUHAMMAD SAAD
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