From: Jiri Benc <jb...@redhat.com> Date: Wed, 3 Jun 2020 11:12:14 +0200
> If the geneve interface is in collect_md (external) mode, it can't send any > packets submitted directly to its net interface, as such packets won't have > metadata attached. This is expected. > > However, the kernel itself sends some packets to the interface, most > notably, IPv6 DAD, IPv6 multicast listener reports, etc. This is not wrong, > as tunnel metadata can be specified in routing table (although technically, > that has never worked for IPv6, but hopefully will be fixed eventually) and > then the interface must correctly participate in IPv6 housekeeping. > > The problem is that any such attempt increases the tx_error counter. Just > bringing up a geneve interface with IPv6 enabled is enough to see a number > of tx_errors. That causes confusion among users, prompting them to find > a network error where there is none. > > Change the counter used to tx_dropped. That better conveys the meaning > (there's nothing wrong going on, just some packets are getting dropped) and > hopefully will make admins panic less. > > Signed-off-by: Jiri Benc <jb...@redhat.com> Seems reasonable, applied, thanks Jiri.
