Re: [PATCH RFC 00/24] IPVS: Add first IPv6 support to IPVS

To: Julius Volz <juliusv@xxxxxxxxxx>
Subject: Re: [PATCH RFC 00/24] IPVS: Add first IPv6 support to IPVS
Cc: Sven Wegener <sven.wegener@xxxxxxxxxxx>, Simon Horman <horms@xxxxxxxxxxxx>, netdev@xxxxxxxxxxxxxxx, lvs-devel@xxxxxxxxxxxxxxx, kaber@xxxxxxxxx, vbusam@xxxxxxxxxx
From: Graeme Fowler <graeme@xxxxxxxxxxx>
Date: Sat, 23 Aug 2008 10:20:06 +0100
On Fri, 2008-08-22 at 14:14 +0200, Julius Volz wrote:
> Yes, starting from scratch on another port sounds like a good idea.
> Losing sync ability totally isn't as bad as confusing an older kernel
> with new messages, so I hope it's not necessary to keep the old
> baggage around?

I agree - having a new sync daemon which can deal with v6 entries aswell
as v4 entries would be a good way to work; the legacy code can then be
retired at a later date with minimal end-user impact.

> Is there enough motivation for doing this though before having a
> cleaned-up minimal v6 version without the sync daemon? This is where
> I'm currently a bit stuck with... any help is appreciated :)

Well, as someone else mentioned on lvs-users recently "I couldn't code
my way out of a wet paper bag in C" so I'm not much help on that front,
however I feel that getting the minimal working feature set going first
and then adding the sync code later is probably a good way to proceed.

This also gives us a development timeline that we can offer to
interested parties, along the lines of:

2008-10 Minimal IPv6 functionality
2008-?? Full IPv6 functionality matching IPv4 features, no IPv6 sync
2009-?? Restructured sync daemon with full IPv4 and IPv6 support

Horms, Joe - do you agree that this is a good idea?


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