Software Installation and Upgrade
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Increased memory allocation for Junos VM (MX204)—Starting in Junos OS Release 21.2R1, we support increased memory allocation for Junos VM. The available VM size options are default (16GB) and high (24GB). After you update the VM size, you must perform a system reboot using the
request vmhost reboot
statement.Before you increase the memory, please contact Juniper Networks technical support to know the use cases that we support. After the memory upgrade, if you want to downgrade the Junos OS image, revert the VM memory to
default
and perform a system reboot using therequest vmhost reboot
command.[See VM Host Overview.]