Junos node slicing: Multiversion software support

Junos Node Slicing supports multi-version software compatibility, enabling the BSYS to interoperate with a guest network function (GNF), which runs a Junos OS version that is higher than the software version on the BSYS. This feature supports a deviation of up to two versions between GNF and BSYS. That is, the GNF software can be up to two versions higher than the BSYS software.