https://www.theregister.co.uk/2018/02/20/why_is_the_ethernet_switch_biz_dozing_through_meltdown/

In the seven weeks since The Register broke the news of the Meltdown/Spectre speculative execution vulnerabilities, nearly every corner of the industry has scrambled to patch, re-patch, and work out how to Spectre-proof the world.

Except for Ethernet switch vendors, who with a very few exceptions haven't even troubled to make statements about the bugs.