netdev - Re: [PATCH net-next 2/3 v3] net: ipv4 sysctl option to ignore routes when nexthop link is down

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Message-ID: <CAE4R7bCXehOuybGyDMHmzEHw_4X7d3G345EXYCyMCrC7c4oe8g@mail.gmail.com>
Date:	Wed, 10 Jun 2015 20:00:14 -0700
From:	Scott Feldman <sfeldma@...il.com>
To:	YOSHIFUJI Hideaki <hideaki.yoshifuji@...aclelinux.com>
Cc:	Andy Gospodarek <gospo@...ulusnetworks.com>,
	Netdev <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>, ddutt@...ulusnetworks.com,
	Alexander Duyck <alexander.duyck@...il.com>,
	Hannes Frederic Sowa <hannes@...essinduktion.org>,
	"stephen@...workplumber.org" <stephen@...workplumber.org>
Subject: Re: [PATCH net-next 2/3 v3] net: ipv4 sysctl option to ignore routes
 when nexthop link is down

On Wed, Jun 10, 2015 at 7:57 PM, YOSHIFUJI Hideaki
<hideaki.yoshifuji@...aclelinux.com> wrote:
> Hi,
>
> Andy Gospodarek wrote:
>> This feature is only enabled with the new per-interface or ipv4 global
>> sysctls called 'ignore_routes_with_linkdown'.
>>
>> net.ipv4.conf.all.ignore_routes_with_linkdown = 0
>> net.ipv4.conf.default.ignore_routes_with_linkdown = 0
>> net.ipv4.conf.lo.ignore_routes_with_linkdown = 0
> :
>> Signed-off-by: Andy Gospodarek <gospo@...ulusnetworks.com>
>> Signed-off-by: Dinesh Dutt <ddutt@...ulusnetworks.com>
>> ---
> :
>> diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
>> index 7e7746a..c9d0a0e 100644
>> --- a/kernel/sysctl_binary.c
>> +++ b/kernel/sysctl_binary.c
>> @@ -253,6 +253,7 @@ static const struct bin_table bin_net_ipv4_conf_vars_table[] = {
>>       { CTL_INT,      NET_IPV4_CONF_NOPOLICY,                 "disable_policy" },
>>       { CTL_INT,      NET_IPV4_CONF_FORCE_IGMP_VERSION,       "force_igmp_version" },
>>       { CTL_INT,      NET_IPV4_CONF_PROMOTE_SECONDARIES,      "promote_secondaries" },
>> +     { CTL_INT,      NET_IPV4_CONF_IGNORE_ROUTES_WITH_LINKDOWN,      "ignore_routes_with_linkdown" },
>>       {}
>>  };
>>
>
> Please do not add new binary sysctl knob. Thank you.

Reason?
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