Juniper makes a meal of Spectre/Meltdown
https://www.theregister.co.uk/2018/07/15/network_roundup_july_13/
ROUNDUP Juniper Networks has issued its semi-regular bug-dump, with sixteen advisories arriving late last week. There's a Spectre/Meltdown patch in there, but you need to go looking: it's in the Junos Space management platform, along with various other items.
Junos Space also received one fix for BIND, and a merry collection of 17 Java SE bugs from 2017 and 2018.