In a mixed Virtual Chassis of EX4600 and EX4300 switches, the Junos OS release
dictates whether the EX4600 is best used in the master role. For Junos OS releases
between 13.2X50-D10 and 14.1X53-D25, use the use the EX4300 as a master and backup
RE in the Virtual Chassis. For Junos OS Release 14.1X53-D25 and later, the EX4600
is fully supported as the master in a mixed Virtual Chassis of EX4600 and EX4300.
Ensure all members of the Virtual Chassis are running the same Junos OS Release by
issuing the show chassis version CLI command.
They are all on
version 14.1X53-D27.3