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Re: [patch 2/6] [Network namespace] Network device sharing by view [message #4041 is a reply to message #4039]

Tue, 27 June 2006 11:55

Andrey Savochkin
Messages: 47
Registered: December 2005

Member

Daniel,

On Tue, Jun 27, 2006 at 01:21:02PM +0200, Daniel Lezcano wrote:
> >>>My point is that if you make namespace tagging at routing time, and
> >>>your packets are being routed only once, you lose the ability
> >>>to have separate routing tables in each namespace.
> >>
> >>Right. What is the advantage of having separate the routing tables ?
> >
> >
> > Routing is everything.
> > For example, I want namespaces to have their private tunnel devices.
> > It means that namespaces should be allowed have private routes of local type,
> > private default routes, and so on...
> >
>
> Ok, we are talking about the same things. We do it only in a different way:

We are not talking about the same things.

It isn't a technical thing whether route lookup is performed before or after
namespace change.
It is a fundamental question determining functionality of network namespaces.
We are talking about the capabilities namespaces provide.

Your proposal essentially denies namespaces to have their own tunnel or other
devices. There is no point in having a device inside a namespace if the
namespace owner can't route all or some specific outgoing packets through
that device. You don't allow system administrators to completely delegate
management of network configuration to namespace owners.

Andrey

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[Message index]

		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Andrey Savochkin on Tue, 27 June 2006 09:38
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Daniel Lezcano on Tue, 27 June 2006 11:21
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Tue, 27 June 2006 11:52
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Tue, 27 June 2006 16:02
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Tue, 27 June 2006 16:47
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Ben Greear on Tue, 27 June 2006 17:19
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Tue, 27 June 2006 22:52
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Dave Hansen on Tue, 27 June 2006 23:12
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Alexey Kuznetsov on Tue, 27 June 2006 23:42
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Wed, 28 June 2006 03:38
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Wed, 28 June 2006 13:36
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Wed, 28 June 2006 14:21
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: jamal on Wed, 28 June 2006 13:53
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Sam Vilain on Thu, 29 June 2006 21:07
		strict isolation of net interfaces By: Cedric Le Goater on Thu, 29 June 2006 22:14
		Re: strict isolation of net interfaces By: Sam Vilain on Fri, 30 June 2006 02:48
		Re: strict isolation of net interfaces By: Andrey Savochkin on Mon, 03 July 2006 14:53
		Re: strict isolation of net interfaces By: Sam Vilain on Tue, 04 July 2006 03:00
		Re: strict isolation of net interfaces By: Daniel Lezcano on Tue, 04 July 2006 12:29
		Re: strict isolation of net interfaces By: serue on Fri, 30 June 2006 02:39
		Re: strict isolation of net interfaces By: Cedric Le Goater on Fri, 30 June 2006 08:56
		Re: strict isolation of net interfaces By: Herbert Poetzl on Mon, 03 July 2006 13:36
		Re: strict isolation of net interfaces By: Daniel Lezcano on Fri, 30 June 2006 12:23
		Re: strict isolation of net interfaces By: ebiederm on Fri, 30 June 2006 14:20
		Re: strict isolation of net interfaces By: Daniel Lezcano on Fri, 30 June 2006 15:22
		Re: strict isolation of net interfaces By: ebiederm on Fri, 30 June 2006 17:58
		Re: strict isolation of net interfaces By: serue on Fri, 30 June 2006 16:14
		Re: strict isolation of net interfaces By: ebiederm on Fri, 30 June 2006 17:41
		Re: strict isolation of net interfaces By: ebiederm on Fri, 30 June 2006 18:09
		Re: strict isolation of net interfaces By: Sam Vilain on Tue, 04 July 2006 13:13
		Re: strict isolation of net interfaces By: Daniel Lezcano on Tue, 04 July 2006 13:19
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: jamal on Fri, 30 June 2006 00:15
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Herbert Poetzl on Fri, 30 June 2006 03:35
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Andrey Savochkin on Fri, 30 June 2006 07:45
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: jamal on Fri, 30 June 2006 13:50
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Andrey Savochkin on Fri, 30 June 2006 15:01
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Fri, 30 June 2006 18:22
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: jamal on Fri, 30 June 2006 21:51
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Sat, 01 July 2006 00:50
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: ebiederm on Wed, 28 June 2006 14:51
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Alexey Kuznetsov on Tue, 27 June 2006 16:49
		Re: [patch 2/6] [Network namespace] Network device sharing by view By: Andrey Savochkin on Tue, 27 June 2006 11:55

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