Switching

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  • 1.  EX4550 fake master to change virtual chassis?

    Posted 08-08-2022 17:23
    I have an EX4550 which I can't get out of being
    {linecard:0}​

    in a virtual chassis that no longer exists, (thread here)

    I have an SRX-300 sitting around as a spare, is it possible to create a 'fake master' with the SRX device that will see my EX4550 and be able to manage it and change it back to a standalone unit (or is there another way)?



  • 2.  RE: EX4550 fake master to change virtual chassis?

    Posted 08-08-2022 20:07
    Virtual chassis is only for the EX switch models.  And the participation in a virtual chassis group is limited to specific models per group.

    For this group you would need ex4550, ex4500 or ex4200 as members.

    https://www.juniper.net/documentation/en_US/release-independent/junos/topics/topic-map/ex4550-virtual-chassis.html

    ------------------------------
    Steve Puluka BSEET - Juniper Ambassador
    IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP - Retired)
    http://puluka.com/home
    ------------------------------



  • 3.  RE: EX4550 fake master to change virtual chassis?

    Posted 08-09-2022 00:45
    Is there any other way to accomplish this via CLI?

    I have another EX4550, but it's in production and I'm afraid it might magically revert to some unusable state like this one did when I put it on the network.


  • 4.  RE: EX4550 fake master to change virtual chassis?

    Posted 08-14-2022 09:59
    Have you tried erasing with zeroize?
    request system zeroize

    Or make sure all configuration for virtual chassis is deleted from the configuration.
    delete virtual-chassis

    ------------------------------
    Steve Puluka BSEET - Juniper Ambassador
    IP Architect - DQE Communications Pittsburgh, PA (Metro Ethernet & ISP - Retired)
    http://puluka.com/home
    ------------------------------



  • 5.  RE: EX4550 fake master to change virtual chassis?

    Posted 08-18-2022 19:54
    tried zeroize once in the recovery shell, but there was no virtual-chassis config:
    {linecard:0}[edit]
    root@4550switch#show virtual-chassis
    
    {linecard:0}[edit]
    root@4550switch#delete virtual-chassis
    warning: statement not found
    
    {linecard:0}[edit]
    root@4550switch#commit and-quit
    
    root@4550switch> request system zeroize​
    warning: System will be rebooted and may not boot without configuration
    Erase all data, including configuratino and log files? [yes,no] yes
    
    warning: zeroing fpc0

    Once it rebooted it still tried to log me into master, and then reverted to local login, but wouldn't let me enter password.

    FILE SYSTEM CLEAN; SKIPPING CHECKS
    clean, 111631 free (15 frags, 13952 blocks, 0.0% fragmentation)
    
    ex4550switch1 (ttyu0)
    
    login: root
    
    Logging to master
    ...
    Connection to master failed, enabling local login
    
    ex4550switch1 (ttyu0)
    
    login: root
    
    ex4550switch1 (ttyu0)
    
    login: 
    



  • 6.  RE: EX4550 fake master to change virtual chassis?

    Posted 08-22-2022 13:05
    So if I get an EX-4200 and set it to a master, how to do I connect this EX-4550 to it so I can login and change the 4550 state from the 4200?


  • 7.  RE: EX4550 fake master to change virtual chassis?

     
    Posted 08-22-2022 14:47
    Just do a boot loader USB install with format. This will reset everything. 

    https://supportportal.juniper.net/s/article/EX-Performing-and-resolving-any-common-issues-during-Format-Install-on-legacy-EX-platforms?language=en_US#


  • 8.  RE: EX4550 fake master to change virtual chassis?

    Posted 08-24-2022 09:14
    -------------------------------------------
    Original Message:
    Sent: 08-22-2022 14:46
    From: Unknown User
    Subject: EX4550 fake master to change virtual chassis?

    Just do a boot loader USB install with format. This will reset everything. 

    https://supportportal.juniper.net/s/article/EX-Performing-and-resolving-any-common-issues-during-Format-Install-on-legacy-EX-platforms?language=en_US#
    Original Message:
    Sent: 08-22-2022 13:05
    From: bob
    Subject: EX4550 fake master to change virtual chassis?

    So if I get an EX-4200 and set it to a master, how to do I connect this EX-4550 to it so I can login and change the 4550 state from the 4200?
    Original Message:
    Sent: 08-18-2022 18:20
    From: bob
    Subject: EX4550 fake master to change virtual chassis?

    tried zeroize once in the recovery shell, but there was no virtual-chassis config:



  • 9.  RE: EX4550 fake master to change virtual chassis?

     
    Posted 08-24-2022 11:43
    You, can't. That's normal
    output for a standalone switch. You can't disable the VC subsystem. That said, I would not trust this switch without a clean OS reinstall.