From: <denys@visp.net.lb>
To: <denys@visp.net.lb>
Cc: Stephen Hemminger <shemminger@vyatta.com>, <netdev@vger.kernel.org>
Subject: Re: iproute2 caching and batch mode
Date: Sat, 08 Jan 2011 22:36:03 +0200 [thread overview]
Message-ID: <fffe1fdf060607341e1d2b5428e248aa@localhost> (raw)
In-Reply-To: <0befc7c09f04936c1244eaa5a1d2620c@localhost>
On Sat, 08 Jan 2011 22:09:39 +0200, <denys@visp.net.lb> wrote:
> Hi,
>
> noticed some issue a while ago, and because of recent patches decided to
> post my thoughts:
>
> This issue can happen if ip or tc running in some kind of "daemon" batch
> mode, or processing large batch file on computer where interfaces can
> reappear with same name but different index (pppoe NAS for example).
>
> It is easy to reproduce the problem:
>
> centaur iproute2-2.6.37 # ip/ip -force -batch -
> tunnel add test0 mode ipip remote 1.1.1.2 local 1.1.1.1
> link show dev test0
> 201: test0: <POINTOPOINT,NOARP> mtu 1480 qdisc noop state DOWN
> link/ipip 1.1.1.1 peer 1.1.1.2
> tunnel del test0
> Unsupported family:17
>
> Or:
>
> centaur iproute2-2.6.37 # ip/ip -force -batch -
> tunnel del test0
> tunnel add test0 mode ipip remote 1.1.1.2 local 1.1.1.1
> link show dev test0
> 202: test0: <POINTOPOINT,NOARP> mtu 1480 qdisc noop state DOWN
> link/ipip 1.1.1.1 peer 1.1.1.2
> (another console, delete and create again test0)
> link show dev test0
> (nothing will appear)
Sorry, just got mail sent before i finish it.
Is it appropriate to implement some kind of "flush" command, to flush
internal cache?
I can try to do that, if this way is ok.
Sure maybe best way to monitor interface updates over netlink, in batch
mode, and update cache accordingly.
next prev parent reply other threads:[~2011-01-08 20:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-08 20:09 iproute2 caching and batch mode denys
2011-01-08 20:36 ` denys [this message]
2011-01-09 17:53 ` Stephen Hemminger
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