netdev - Re: how to figure out which device a given IFB is connected to

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Message-Id: <E5E81534-C300-42C1-B2DF-84C006A117AD@gmx.de>
Date:	Mon, 15 Sep 2014 21:06:31 +0200
From:	Sebastian Moeller <moeller0@....de>
To:	Cong Wang <cwang@...pensource.com>
Cc:	netdev <netdev@...r.kernel.org>
Subject: Re: how to figure out which device a given IFB is connected to

Hi Mr. Wang,

Thank you for your help.

On Sep 15, 2014, at 18:08 , Cong Wang <cwang@...pensource.com> wrote:

> On Mon, Sep 15, 2014 at 7:37 AM, Sebastian Moeller <moeller0@....de> wrote:
>> I am looking for a way of doing the reverse,i.e.  figuring out for a given IFB if it is “connected” to a real interface and, if yes, which interface. Basically, I want to recycle unused IFBs, but want to make sure that they really are unused…
>> 
> 
> There is no way to figure that out.

	That is rather unfortunate, so my only recourse is to get a list of all interfaces and query each whether it is attached to an fib and prune a list of IFBs so that only the unused ones remain (which is far from elegant ;) ).

Best Regards
	Sebastian Moeller--
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