From: "Nicolas de Pesloüan" <nicolas.2p.debian@gmail.com>
To: Stephen Hemminger <stephen.hemminger@vyatta.com>
Cc: Adam Majer <adamm@zombino.com>,
"David S. Miller" <davem@davemloft.net>,
Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
"Pekka Savola (ipv6)" <pekkas@netcore.fi>,
James Morris <jmorris@namei.org>,
Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
Patrick McHardy <kaber@trash.net>,
bridge@lists.linux-foundation.org, netdev@vger.kernel.org,
Andy Gospodarek <andy@greyhouse.net>,
Jay Vosburgh <fubar@us.ibm.com>
Subject: Re: [PATCH 1/2] Issue NETDEV_CHANGE notification when bridge changes state
Date: Mon, 07 Mar 2011 08:44:03 +0100 [thread overview]
Message-ID: <4D748CC3.8060603@gmail.com> (raw)
In-Reply-To: <1649722795.14144.1299480074110.JavaMail.root@tahiti.vyatta.com>
Le 07/03/2011 07:41, Stephen Hemminger a écrit :
>
>> On Sun, Mar 06, 2011 at 09:45:41AM -0800, Stephen Hemminger wrote:
>>> Since this a generic problem, it needs a better solution.
>>> Sending NETDEV_CHANGE impacts lots of other pieces, and even
>>> user space has similar problems.
>>
>> It does seem a little broad notification type. I've checked over
>> all the currently defined NETDEV notifiers, and it seems that
>> NETDEV_NOTIFY_PEERS may be a better option to use when bridge
>> has a potential topology change.
>>
>> Currently it is only used in ipv4/devinet.c: where it is used to issue
>> a gratuitous ARP.
>
> I was thinking of fixing bridge to not actually bring the link
> up until in forwarding mode. Other applications (DHCP, etc)
> see the link up and really don't like being in half duplex
> during that period.
I think it is the right way to manage this situation. And bonding should behave the same, if not
already true.
Nicolas.
next prev parent reply other threads:[~2011-03-07 7:44 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-06 5:18 [PATCH 1/2] Issue NETDEV_CHANGE notification when bridge changes state Adam Majer
2011-03-06 5:20 ` [PATCH 2/2] Retry autoconfiguration on interface after NETDEV_CHANGE notification Adam Majer
2011-03-06 5:31 ` [PATCH 1/2] Issue NETDEV_CHANGE notification when bridge changes state Adam Majer
2011-03-06 6:43 ` Stephen Hemminger
2011-03-06 8:03 ` Adam Majer
2011-03-06 17:45 ` Stephen Hemminger
2011-03-07 0:25 ` Adam Majer
2011-03-07 6:41 ` Stephen Hemminger
2011-03-07 7:44 ` Nicolas de Pesloüan [this message]
2011-03-07 18:34 ` [PATCH] bridge: control carrier based on ports online Stephen Hemminger
2011-03-07 20:48 ` Nicolas de Pesloüan
2011-03-07 21:44 ` Stephen Hemminger
2011-03-07 21:51 ` Nicolas de Pesloüan
2011-03-08 1:08 ` Adam Majer
2011-03-14 21:29 ` David Miller
2011-03-06 18:01 ` [PATCH 1/2] Issue NETDEV_CHANGE notification when bridge changes state Jan Ceuleers
2011-03-09 15:09 ` Américo Wang
2011-03-09 16:44 ` Adam Majer
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4D748CC3.8060603@gmail.com \
--to=nicolas.2p.debian@gmail.com \
--cc=adamm@zombino.com \
--cc=andy@greyhouse.net \
--cc=bridge@lists.linux-foundation.org \
--cc=davem@davemloft.net \
--cc=fubar@us.ibm.com \
--cc=jmorris@namei.org \
--cc=kaber@trash.net \
--cc=kuznet@ms2.inr.ac.ru \
--cc=netdev@vger.kernel.org \
--cc=pekkas@netcore.fi \
--cc=stephen.hemminger@vyatta.com \
--cc=yoshfuji@linux-ipv6.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).