From: Vlad Yasevich <vyasevich@gmail.com>
To: linux-sctp@vger.kernel.org
Subject: Re: [Lksctp-developers] ARP request being sent every 20 seconds or so
Date: Wed, 20 Mar 2013 12:40:31 +0000 [thread overview]
Message-ID: <5149AE3F.50000@gmail.com> (raw)
On 03/20/2013 06:40 AM, upma gandhi wrote:
> Hi Vlad,
> I am using linux kernel 2.6.32 and wondering if the fix you are
> referring is after that ?
> I would like to know if MIB variable SCTP_MIB_OUTSCTPPACKS is picked
> up by ICMP to figure out if neighbour is stale/unreachable/delay etc.
> ? Can you pls. point me to variable which is being set by SCTp on
> successful packet out and pickup by ARP to figure out if resolution is
> required or not ? I am sorry for writing personal mail but I am in
> need of solution faster.
I just checked, and we don't appear to have this fix. Let me see if I
can cook something up for you to test.
-vlad
>
> Thanks
> Upma
>
> On Tue, Mar 19, 2013 at 5:37 PM, Vlad Yasevich <vyasevich@gmail.com> wrote:
>> On 03/19/2013 05:03 AM, upma gandhi wrote:
>>> Hello All,
>>> I have one basic SCTP client and server ( having single network
>>> connection) and client is continuously sending data to server every 1
>>> second. I am seeing that server is sending ARP request every 20
>>> seconds or so ( see below logs) for client IP address. If I use TCP
>>> client/ server instead of SCTP, I see that ARP request is being sent
>>> every 4 minute. Can somebody clarify why its happening or if my
>>> observation is wrong ?
>>
>> There was an old bug that SCTP didn't update the route forward progress
>> thus causing NUD to kick in even though reachability was configured
>> through SCTP. I thought it was fixed a long time ago. Which kernel
>> version are you using?
>>
>> -vlad
>>
>>>
>>> Thanks
>>>
>>> ------------------------------------------------------------------------------
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>>> https://lists.sourceforge.net/lists/listinfo/lksctp-developers
>>>
>>
>>
>> ------------------------------------------------------------------------------
>> Everyone hates slow websites. So do we.
>> Make your web apps faster with AppDynamics
>> Download AppDynamics Lite for free today:
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next reply other threads:[~2013-03-20 12:40 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-20 12:40 Vlad Yasevich [this message]
2013-03-21 13:24 ` [Lksctp-developers] ARP request being sent every 20 seconds or so Vlad Yasevich
2013-03-22 8:24 ` upma gandhi
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