On Fri, 2 Mar 2018 15:39:03 -0700 David Ahern <dsah...@gmail.com> wrote:
> On 3/2/18 8:36 AM, Stefano Brivio wrote: > > Currently, administrative MTU changes on a given netdevice are > > not reflected on route exceptions for MTU-less routes, with a > > set PMTU value, for that device: > > > > # ip -6 route get 3000::b > > 3000::b from :: dev vti_a proto kernel src 3000::a metric 256 pref medium > > # ping6 -c 1 -q -s10000 3000::b > /dev/null > > # ip netns exec a ip -6 route get 3000::b > > 3000::b from :: dev vti_a src 3000::a metric 0 > > cache expires 571sec mtu 4926 pref medium > > # ip link set dev vti_a mtu 3000 > > # ip -6 route get 3000::b > > 3000::b from :: dev vti_a src 3000::a metric 0 > > cache expires 571sec mtu 4926 pref medium > > # ip link set dev vti_a mtu 9000 > > # ip -6 route get 3000::b > > 3000::b from :: dev vti_a src 3000::a metric 0 > > cache expires 571sec mtu 4926 pref medium > > Addresses in the 2001:db8: range should be used for commit messages. Thanks for pointing this out. I never related the "documentation purposes" from RFC3849 to commit messages so far, but in the end this is nothing else than documentation. I will post a v2 with updated commit message. > And please codify the above expectation as a test under > tools/testing/selftests/net And this, along with v2. -- Stefano
