KB79804 - [QFX10K/PTX] Interfaces down after software upgrade from 18.1R2-S4.4 to 19.4R3-S9.4

⌂ KB79804 [QFX10K/PTX] Interfaces down after software upgrade from 18.1R2-S4.4 to 19.4R3-S9.4 Version 2026-06-19 (paste date) Latest Versions [juniper.net]