ISSUE SOLVED.
Version junos-arm-32-21.4R3-S1.5.tgz has a bug. I will open the ticket because this is recommended version.
Original Message:
Sent: 03-06-2023 06:30
From: T_J
Subject: EX2300 virtual chassis cannot change mode to mixed
Really nobody knows how to fix it? Somehow in shell?
Version on all tree switches is 21.4R3-S1.5
Switches are in mixed mode, where I can't change it to "similar device"
Weird is, after reboot doesn't change anything... Looks like something blocks this change.

Third switch which I want to add is already in correct mode (no configuration is there)

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TOMAS
Original Message:
Sent: 03-03-2023 09:41
From: T_J
Subject: EX2300 virtual chassis cannot change mode to mixed
Anybody any suggestion? I am struggling with this issue...
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TOMAS
Original Message:
Sent: 02-20-2023 07:42
From: Erik Slagter
Subject: EX2300 virtual chassis cannot change mode to mixed
Interesting. Sorry no real experience with either mixed mode or EX2300
switches.
Original Message:
Sent: 2/20/2023 2:20:00 AM
From: T_J
Subject: RE: EX2300 virtual chassis cannot change mode to mixed
Hi everyone.
I know what is different between "p" and "t" and I wasnt sure why I have Mixed mode. But this weekend I have tried to change mode to not mixed without success...
either I do something wrong or this is case for juniper support.
to change mode I use command:
request virtual-chassis mode mixed disable reboot. - after reboot it is again mixed
What can I see: (after reboot)
show virtual-chassis mode
fpc0:
--------------------------------------------------------------------------
Current mode : Virtual Chassis with mixed devices
Future mode after reboot : Virtual Chassis with similar devices
fpc1:
--------------------------------------------------------------------------
Current mode : Virtual Chassis with mixed devices
Future mode after reboot : Virtual Chassis with similar devices
after reboot it stay with no change (current mode - mixed, after reboot- similar)
another option how to change it? in shell?
thanks fou your suggestions.
BR
what is your suggestion to do next?
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TOMAS
Original Message:
Sent: 02-14-2023 09:01
From: Erik Slagter
Subject: EX2300 virtual chassis cannot change mode to mixed
The only difference between the "p" and the "t" models is whether they
have PoE or not. That definitely does not count as a "different model".
I have been mixing EX3300's with and without PoE for absolutely years
and never needed to activate mixed mode. For a stack of EX4200 and
EX4550, I do have to activate it though, because it's really a complete
different switch, only the stack interface is the same.
Original Message:
Sent: 2/14/2023 1:53:00 AM
From: T_J
Subject: RE: EX2300 virtual chassis cannot change mode to mixed
Hi all,
I can connect under member 2 and I tried to change it directly from member 2 - no change, member 2 is still Inactive.
Why I am trying to have Mixed mode? - I know that I have EX2300 but different type one "t" and two "p".
According juniper by this issue it is either version mismatch or mode. I have on all switches the same version.
https://supportportal.juniper.net/s/article/EX-QFX-Fixing-a-Virtual-Chassis-Member-with-an-Inactive-status?language=en_US
any other suggestion?
Thanks
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TOMAS
Original Message:
Sent: 02-13-2023 12:36
From: Erik Slagter
Subject: EX2300 virtual chassis cannot change mode to mixed
Why are you using mixed mode anyway? I was under the impression that mixed mode was to combine different types/models into one stack, which in this case doesn't seem to be.
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Erik Slagter
Original Message:
Sent: 02-13-2023 02:36
From: T_J
Subject: EX2300 virtual chassis cannot change mode to mixed
Hi everyone.
I added new switch to VC and on this switch I cant change mode- in this chassis I have two type of switch ex2300-24t and ex2300-24p
Member ID Status Serial No Model prio Role Mode Mode ID Interface
0 (FPC 0) Prsnt JZ3622130013 ex2300-24t 129 Backup Y VC 2 vcp-255/1/0
1 (FPC 1) Prsnt JY3622320543 ex2300-24p 129 Master* Y VC 2 vcp-255/1/0
2 (FPC 2) Inactive JY0219230488 ex2300-24p 0 Linecard N VC 0 vcp-255/1/0
new switch is inactive - mixed mode N
After command : request virtual-chassis mode mixed member 2 reboot - Switch reboot, but mode stay - similar devices.
Switch was used as standalone before, cleared to default with "request system zeroize"
Do I have issue with license now? do I need load license again? Or the issue is somewhere else?
Thanks for an answer.
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TOMAS
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