netdev - Re: [PATCH] vxlan: force user to set port value

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Message-ID: <20130515150433.1eb4c73a@nehalam.linuxnetplumber.net>
Date:	Wed, 15 May 2013 15:04:33 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	David Miller <davem@...emloft.net>
Cc:	dlstevens@...ibm.com, amwang@...hat.com, netdev@...r.kernel.org,
	netdev-owner@...r.kernel.org
Subject: Re: [PATCH] vxlan: force user to set port value

On Wed, 15 May 2013 14:47:30 -0700 (PDT)
David Miller <davem@...emloft.net> wrote:

> 
> Stephen, this doesn't work either.
> 
> You're breaking people's scripts.
> 
> Even worse, you're breaking things, and your error message doesn't
> even tell the user how to get the previous behavior.  You're telling
> them how to get new behavior, which they probably don't give a
> crap about.  They want their existing stuff to work.
> 
> Stop being in denial, we are stuck with the old port number default.
> 
> Again, we cannot change this default without breaking something which
> we've already deployed to users.
> 
> If this port number issue was so important, we should have done
> something about it when we integrated vxlan.  But we didn't, so we
> have to live with the consequences.
> 
> Now is far too late to change the default.

So you want RHEL customers to continue to use the pre-standard Cisco
port in their clouds and be incompatible with standards?

I made a mistake in the initial implementation using that value and every user for time immemorial
has to suffer.

Since every distro patches iproute anyway, let them keep the non-standard
compatibility if that is what they demand.
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