From: Toyo Abe <tabe@miraclelinux•com>
To: "YOSHIFUJI Hideaki / 吉藤英明" <yoshfuji@linux-ipv6•org>
Cc: davem@davemloft•net, netdev@vger•kernel.org
Subject: Re: [IPV6] ADDRCONF: Defer dad for global address until dad for linklocal is completed.
Date: Thu, 22 May 2008 02:30:52 +0900 [thread overview]
Message-ID: <48345C4C.6020106@miraclelinux.com> (raw)
In-Reply-To: <20080522.015807.02348209.yoshfuji@linux-ipv6.org>
YOSHIFUJI Hideaki / 吉藤英明 wrote:
> In article <4832C3CC.5070609@miraclelinux•com> (at Tue, 20 May 2008 21:27:56 +0900), Toyo Abe <tabe@miraclelinux•com> says:
>
>> I was also thinking so. And I tried it at first.
>> But then, many other test scenarios in TAHI test suite went to FAIL. It
>> was because
>> the tester node send RA with prefix option to the host right after it
>> receives DAD NS
>> from the host, which is obviously in autoconfiguration process for
>> linklocal address.
>
> If so, we should complain about the spec / tests.
>
Maybe so.
Well, did you observe the same problem?
>> Since current addrconf code actually accepts RA including prefix option
>> while DAD for
>> linklocal address is processing, changes of the behaviour looks like a
>> degradation for me.
>> Hence, I chose to accept RA at that moment and defer sending DAD NS for
>> global addresses.
>
> Well I don't think so.
> We should choose simpler way - avoid introducing new "unique" state so far.
>
> If you really think is worth accepting RA during DAD for link-local
> address, we should cancel all of on-going DADs for global address(es)
> if the RA for link-local address has failed, intead of deferring DAD
> for global address(es).
>
You're right. I agree with you that it'd be better than mine.
Thank you,
-toyo
next prev parent reply other threads:[~2008-05-21 17:30 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-20 3:37 [IPV6] ADDRCONF: Defer dad for global address until dad for linklocal is completed Toyo Abe
2008-05-20 8:33 ` YOSHIFUJI Hideaki / 吉藤英明
2008-05-20 12:27 ` Toyo Abe
2008-05-20 12:35 ` Toyo Abe
2008-05-20 12:53 ` Toyo Abe
2008-05-21 16:58 ` YOSHIFUJI Hideaki / 吉藤英明
2008-05-21 17:30 ` Toyo Abe [this message]
2008-05-21 20:30 ` David Miller
2008-06-20 2:17 ` Toyo Abe
2008-06-20 2:32 ` YOSHIFUJI Hideaki / 吉藤英明
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