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| author | melifaro <melifaro@FreeBSD.org> | 2014-11-17 01:05:29 +0000 |
|---|---|---|
| committer | melifaro <melifaro@FreeBSD.org> | 2014-11-17 01:05:29 +0000 |
| commit | f8d64c469aa68f5ce9ef485d9414a30aac3f1d76 (patch) | |
| tree | d1ee8696995c1d2e949c6c1516ab3404756ef029 /contrib/netbsd-tests/lib/libc/string/t_memcpy.c | |
| parent | b7e0e3bf158c1e992123063dadd0a32266ab1069 (diff) | |
| download | FreeBSD-src-f8d64c469aa68f5ce9ef485d9414a30aac3f1d76.zip FreeBSD-src-f8d64c469aa68f5ce9ef485d9414a30aac3f1d76.tar.gz | |
Finish r274175: do control plane MTU tracking.
Update route MTU in case of ifnet MTU change.
Add new RTF_FIXEDMTU to track explicitly specified MTU.
Old behavior:
ifconfig em0 mtu 1500->9000 -> all routes traversing em0 do not change MTU.
User has to manually update all routes.
ifconfig em0 mtu 9000->1500 -> all routes traversing em0 do not change MTU.
However, if ip[6]_output finds route with rt_mtu > interface mtu, rt_mtu
gets updated.
New behavior:
ifconfig em0 mtu 1500->9000 -> all interface routes in all fibs gets updated
with new MTU unless RTF_FIXEDMTU flag set on them.
ifconfig em0 mtu 9000->1500 -> all routes in all fibs gets updated with new
MTU unless RTF_FIXEDMTU flag set on them AND rt_mtu is less than ifp mtu.
route add ... -mtu XXX automatically sets RTF_FIXEDMTU flag.
route change .. -mtu 0 automatically removes RTF_FIXEDMTU flag.
PR: 194238
MFC after: 1 month
CR: D1125
Diffstat (limited to 'contrib/netbsd-tests/lib/libc/string/t_memcpy.c')
0 files changed, 0 insertions, 0 deletions
