diff options
| author | david decotigny | 2014-03-29 09:48:35 -0700 |
|---|---|---|
| committer | David S. Miller | 2014-03-31 16:24:52 -0400 |
| commit | 2d3b479df41a10e2f41f9259fcba775bd34de6e4 (patch) | |
| tree | 517291066c35188a41b005e81904e69865643e76 /net/core/scm.c | |
| parent | 9c76a114bbef10b4d44bd258006721dd896695dd (diff) | |
net-sysfs: expose number of carrier on/off changes
This allows to monitor carrier on/off transitions and detect link
flapping issues:
- new /sys/class/net/X/carrier_changes
- new rtnetlink IFLA_CARRIER_CHANGES (getlink)
Tested:
- grep . /sys/class/net/*/carrier_changes
+ ip link set dev X down/up
+ plug/unplug cable
- updated iproute2: prints IFLA_CARRIER_CHANGES
- iproute2 20121211-2 (debian): unchanged behavior
Signed-off-by: David Decotigny <decot@googlers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/scm.c')
0 files changed, 0 insertions, 0 deletions