It's possible that they still haven't merged the smallish patch described here: https://www.usenix.org/system/files/conference/atc17/atc17-hoiland-jorgensen.pdf

It's possible that they still haven't merged the smallish patch described here: https://www.usenix.org/system/files/conference/atc17/atc17-hoiland-jorgensen.pdf https://www.usenix.org/system/files/conference/atc17/atc17-h... The hardware is underpowered because they optimise for people who deploy a hundred routers on mountaintops, with excellent lines of sight but poor access for replacement. Underclocking severely helps reliability.