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From: Vlad Yasevich <vyasevich@gmail.com>
To: linux-sctp@vger.kernel.org
Subject: Re: MTU Probing
Date: Fri, 15 Nov 2013 13:56:01 +0000	[thread overview]
Message-ID: <528627F1.60909@gmail.com> (raw)
In-Reply-To: <8A8F98BF0CDFD5438985D4397358E6C73B14A9@idc.vanu.com>

On 11/15/2013 07:45 AM, Neil Horman wrote:
> On Fri, Nov 15, 2013 at 10:42:27AM +0530, Prasad, Shashank wrote:
>> Does the kernel SCTP implementation have the implementation of RFC 4821
>> (Packetization Layer Path MTU Discovery) ? I am using 2.6.32-358.23.2
>> kernel, and did NOT find the implementation of RFC 4821 yet.
>>
> SCTP gets its mtu for outgoing paths from the ip layer (via dst_mtu).  IIRC that
> is 4821 compliant

No, ip layer mtu discovery is not 4821 compliant.  SCTP does not 
implement PMTU probing from 4821.  Only TCP in linux appears to support
that.

-vlad

> Neil
>
>> Thanx.
>> --
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      parent reply	other threads:[~2013-11-15 13:56 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-11-15  5:24 MTU Probing Prasad, Shashank
2013-11-15 12:45 ` Neil Horman
2013-11-15 13:00 ` Michael Tuexen
2013-11-15 13:56 ` Vlad Yasevich [this message]

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