linux-kernel - Re: Current state of Network Namespaces (NETNS, CLONE

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Date:	Thu, 20 Nov 2008 13:34:17 +0530
From:	Subrata Modak <subrata@...ux.vnet.ibm.com>
To:	Daniel Lezcano <dlezcano@...ibm.com>
Cc:	Michael Kerrisk <mtk.manpages@...glemail.com>,
	Pavel Emelyanov <xemul@...nvz.org>,
	David Miller <davem@...emloft.net>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	lkml <linux-kernel@...r.kernel.org>, linux-man@...r.kernel.org,
	Stephen Hemminger <shemminger@...ux-foundation.org>,
	adobriyan@...il.com, Patrick McHardy <kaber@...sh.net>,
	den@...nvz.org, ltp-list <ltp-list@...ts.sf.net>
Subject: Re: Current state of Network Namespaces (NETNS, CLONE_NEWNET)?


On Thu, 2008-11-20 at 08:54 +0100, Daniel Lezcano wrote:
> Michael Kerrisk wrote:
> > Sorry for the shotgun mail, but in the end,  it's
> > not clear who can best answer my question(s).
> > 
> > I'm currently trying to add documentation of all of
> > the undocumented CLONE_* flags.  One of these is
> > CLONE_NEWNET, and I could use (quite a lot of) help.  
> > 
> > My questions:
> > 
> > What is the current state of the network namespace 
> > implementation?  Is it complete?  
> 
> It is not complete but mostly usable for ipv4 and ipv6.
> 
> There is a network namespace status I filled at:
> 
> http://lxc.sourceforge.net/network/status.php
> 
> It should be up-to-date.
> 
> > What objects are considered part of the network 
> > namespace, and therefore distinct for a new network 
> > namespace?
> 
> The network namespace brings isolation from the layer-2 to upper layers.
> 
> > Is there any documentation for network namespaces 
> > already?
> 
> http://lxc.sourceforge.net/network.php
> http://lxc.sourceforge.net/doc/sigops/appcr.pdf
> 
> > Are there any test programs for network namespaces?
> 
> http://sourceforge.net/projects/lxc/

And also at:

http://ltp.cvs.sourceforge.net/viewvc/ltp/ltp/testcases/kernel/containers/

Regards--
Subrata

> 
> follow the README page. It is still in development but mainly usable  - 
> any feedbacks are welcome :)
> 

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