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Date: Sat, 29 Mar 2014 18:36:28 -0700
From: Stephen Hemminger <stephen@networkplumber.org>
To: David Decotigny <decot@googlers.com>
Cc: "David S. Miller" <davem@davemloft.net>,
        Jamal Hadi Salim <jhs@mojatatu.com>, netdev@vger.kernel.org,
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        Amir Vadai <amirv@mellanox.com>, Michael Dalton <mwdalton@google.com>,
        Al Viro <viro@ZenIV.linux.org.uk>, Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH net-next v2] net-sysfs: expose number of carrier on/off
 changes
Message-ID: <20140329183628.509f1239@nehalam.linuxnetplumber.net>
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On Sat, 29 Mar 2014 09:48:35 -0700
David Decotigny <decot@googlers.com> wrote:

> 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>

Is there a related SNMP MIB variable? should there be?