From: Ben Greear <greearb@candelatech.com>
To: Stephen Hemminger <shemminger@vyatta.com>
Cc: netdev@vger.kernel.org, bridge@linux-foundation.org,
David Miller <davem@davemloft.net>
Subject: Re: [Bridge] [PATCH net-next] bridge: add notification over netlink when STP changes state
Date: Wed, 18 May 2011 08:19:40 -0700 [thread overview]
Message-ID: <4DD3E38C.30609@candelatech.com> (raw)
In-Reply-To: <20110518081718.0b1fc390@nehalam>
On 05/18/2011 08:17 AM, Stephen Hemminger wrote:
> The first netlink code in the bridge module was to notify
> user space implementations of Spanning Tree Protocol about
> new ports. It did not handle the case of kernel mode STP
> changing states which could be useful for monitoring.
>
> This patch causes RTM_NEWLINK message to occur on kernel
> transitions. It does not send message if request was from user
> space STP, since that would cause reflection and break existing
> API.
So one app monitoring the system won't get updates if another
app makes changes?
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
WARNING: multiple messages have this Message-ID (diff)
From: Ben Greear <greearb@candelatech.com>
To: Stephen Hemminger <shemminger@vyatta.com>
Cc: David Miller <davem@davemloft.net>,
bridge@linux-foundation.org, netdev@vger.kernel.org
Subject: Re: [PATCH net-next] bridge: add notification over netlink when STP changes state
Date: Wed, 18 May 2011 08:19:40 -0700 [thread overview]
Message-ID: <4DD3E38C.30609@candelatech.com> (raw)
In-Reply-To: <20110518081718.0b1fc390@nehalam>
On 05/18/2011 08:17 AM, Stephen Hemminger wrote:
> The first netlink code in the bridge module was to notify
> user space implementations of Spanning Tree Protocol about
> new ports. It did not handle the case of kernel mode STP
> changing states which could be useful for monitoring.
>
> This patch causes RTM_NEWLINK message to occur on kernel
> transitions. It does not send message if request was from user
> space STP, since that would cause reflection and break existing
> API.
So one app monitoring the system won't get updates if another
app makes changes?
Ben
--
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc http://www.candelatech.com
next prev parent reply other threads:[~2011-05-18 15:19 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-18 15:17 [Bridge] [PATCH net-next] bridge: add notification over netlink when STP changes state Stephen Hemminger
2011-05-18 15:17 ` Stephen Hemminger
2011-05-18 15:19 ` Ben Greear [this message]
2011-05-18 15:19 ` Ben Greear
2011-05-18 15:39 ` [Bridge] " Stephen Hemminger
2011-05-18 15:39 ` Stephen Hemminger
2011-05-18 16:18 ` [Bridge] " Ben Greear
2011-05-18 16:18 ` Ben Greear
2011-05-18 23:48 ` [Bridge] " Stephen Hemminger
2011-05-18 23:48 ` Stephen Hemminger
2011-05-18 22:10 ` [Bridge] " David Miller
2011-05-18 22:10 ` David Miller
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=4DD3E38C.30609@candelatech.com \
--to=greearb@candelatech.com \
--cc=bridge@linux-foundation.org \
--cc=davem@davemloft.net \
--cc=netdev@vger.kernel.org \
--cc=shemminger@vyatta.com \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.