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RE: [RFC] network namespaces [message #6027 is a reply to message #6007]

Wed, 06 September 2006 23:06

Caitlin Bestler
Messages: 1
Registered: September 2006

Junior Member

ebiederm@xmission.com wrote:

>
>> Finally, as I understand both network isolation and network
>> virtualization (both level2 and level3) can happily co-exist. We do
>> have several filesystems in kernel. Let's have several network
>> virtualization approaches, and let a user choose. Is that makes
>> sense?
>
> If there are not compelling arguments for using both ways of
> doing it is silly to merge both, as it is more maintenance overhead.
>

My reading is that full virtualization (Xen, etc.) calls for
implementing
L2 switching between the partitions and the physical NIC(s).

The tradeoffs between L2 and L3 switching are indeed complex, but
there are two implications of doing L2 switching between partitions:

1) Do we really want to ask device drivers to support L2 switching for
partitions and something *different* for containers?

2) Do we really want any single packet to traverse an L2 switch (for
the partition-style virtualization layer) and then an L3 switch
(for the container-style layer)?

The full virtualization solution calls for virtual NICs with distinct
MAC addresses. Is there any reason why this same solution cannot work
for containers (just creating more than one VNIC for the partition,
and then assigning each VNIC to a container?)

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[Message index]

		[RFC] network namespaces By: Andrey Savochkin on Tue, 15 August 2006 14:20
		[PATCH 1/9] network namespaces: core and device list By: Andrey Savochkin on Tue, 15 August 2006 14:48
		Re: [PATCH 1/9] network namespaces: core and device list By: Dave Hansen on Wed, 16 August 2006 14:46
		Re: [PATCH 1/9] network namespaces: core and device list By: Stephen Hemminger on Wed, 16 August 2006 16:45
		[PATCH 2/9] network namespaces: IPv4 routing By: Andrey Savochkin on Tue, 15 August 2006 14:48
		[PATCH 6/9] allow proc_dir_entries to have destructor By: Andrey Savochkin on Tue, 15 August 2006 14:48
		[PATCH 5/9] network namespaces: async socket operations By: Andrey Savochkin on Tue, 15 August 2006 14:48
		Re: [PATCH 5/9] network namespaces: async socket operations By: Daniel Lezcano on Fri, 22 September 2006 15:33
		Re: [PATCH 5/9] network namespaces: async socket operations By: Andrey Savochkin on Sat, 23 September 2006 13:16
		[PATCH 7/9] net_device seq_file By: Andrey Savochkin on Tue, 15 August 2006 14:48
		[PATCH 8/9] network namespaces: device to pass packets between namespaces By: Andrey Savochkin on Tue, 15 August 2006 14:48
		[PATCH 4/9] network namespaces: socket hashes By: Andrey Savochkin on Tue, 15 August 2006 14:48
		Re: [PATCH 4/9] network namespaces: socket hashes By: Daniel Lezcano on Mon, 18 September 2006 15:12
		Re: [PATCH 4/9] network namespaces: socket hashes By: Andrey Savochkin on Wed, 20 September 2006 16:32
		Re: [PATCH 4/9] network namespaces: socket hashes By: Daniel Lezcano on Thu, 21 September 2006 12:34
		[PATCH 9/9] network namespaces: playing with pass-through device By: Andrey Savochkin on Tue, 15 August 2006 14:48
		Re: [RFC] network namespaces By: serue on Wed, 16 August 2006 11:53
		Re: [RFC] network namespaces By: Alexey Kuznetsov on Wed, 16 August 2006 15:12
		Re: [RFC] network namespaces By: ebiederm on Wed, 16 August 2006 17:35
		Re: [RFC] network namespaces By: dev on Thu, 17 August 2006 08:28
		Re: [RFC] network namespaces By: Daniel Lezcano on Tue, 05 September 2006 13:34
		Re: [RFC] network namespaces By: ebiederm on Tue, 05 September 2006 14:45
		Re: [RFC] network namespaces By: Herbert Poetzl on Tue, 05 September 2006 16:53
		Re: [RFC] network namespaces By: Daniel Lezcano on Wed, 06 September 2006 09:10
		Re: [RFC] network namespaces By: Herbert Poetzl on Wed, 06 September 2006 16:56
		Re: Re: [RFC] network namespaces By: kir on Wed, 06 September 2006 17:36
		Re: [RFC] network namespaces By: ebiederm on Wed, 06 September 2006 18:34
		Re: [RFC] network namespaces By: kir on Wed, 06 September 2006 18:56
		Re: [RFC] network namespaces By: Cedric Le Goater on Wed, 06 September 2006 20:53
		RE: [RFC] network namespaces By: Caitlin Bestler on Wed, 06 September 2006 23:06
		Re: [RFC] network namespaces By: Daniel Lezcano on Thu, 07 September 2006 08:25
		Re: [RFC] network namespaces By: ebiederm on Thu, 07 September 2006 18:29
		Re: [RFC] network namespaces By: Herbert Poetzl on Fri, 08 September 2006 06:02
		Re: Re: [RFC] network namespaces By: dev on Thu, 07 September 2006 16:20
		Re: Re: [RFC] network namespaces By: Herbert Poetzl on Thu, 07 September 2006 17:27
		Re: Re: [RFC] network namespaces By: Mishin Dmitry on Fri, 08 September 2006 13:10
		Re: Re: [RFC] network namespaces By: Herbert Poetzl on Fri, 08 September 2006 18:11
		Re: Re: [RFC] network namespaces By: Mishin Dmitry on Sat, 09 September 2006 07:57
		Re: Re: [RFC] network namespaces By: Herbert Poetzl on Sun, 10 September 2006 02:47
		Re: Re: [RFC] network namespaces By: Mishin Dmitry on Sun, 10 September 2006 07:45
		Re: Re: [RFC] network namespaces By: Herbert Poetzl on Sun, 10 September 2006 19:22
		Re: [RFC] network namespaces By: ebiederm on Tue, 12 September 2006 03:26
		Re: Re: [RFC] network namespaces By: ebiederm on Sun, 10 September 2006 03:41
		Re: Re: [RFC] network namespaces By: Mishin Dmitry on Sun, 10 September 2006 08:11
		Re: Re: [RFC] network namespaces By: Herbert Poetzl on Sun, 10 September 2006 19:19
		Re: Re: [RFC] network namespaces By: Daniel Lezcano on Mon, 11 September 2006 14:40
		Re: Re: [RFC] network namespaces By: Herbert Poetzl on Mon, 11 September 2006 14:57
		Re: Re: [RFC] network namespaces By: Daniel Lezcano on Mon, 11 September 2006 15:04
		Re: Re: [RFC] network namespaces By: Mishin Dmitry on Mon, 11 September 2006 15:10
		Re: [RFC] network namespaces By: ebiederm on Tue, 12 September 2006 03:28
		Re: [RFC] network namespaces By: Mishin Dmitry on Tue, 12 September 2006 07:38
		Re: Re: [RFC] network namespaces By: ebiederm on Thu, 07 September 2006 19:50
		Re: Re: [RFC] network namespaces By: Daniel Lezcano on Wed, 06 September 2006 21:44
		Re: [RFC] network namespaces By: ebiederm on Wed, 06 September 2006 17:58
		Re: [RFC] network namespaces By: ebiederm on Tue, 05 September 2006 18:27
		Re: [RFC] network namespaces By: dev on Wed, 06 September 2006 14:52
		Re: [RFC] network namespaces By: Daniel Lezcano on Tue, 05 September 2006 15:32
		Re: [RFC] network namespaces By: dev on Tue, 05 September 2006 15:44
		Re: [RFC] network namespaces By: ebiederm on Tue, 05 September 2006 17:09
		Re: [RFC] network namespaces By: Cedric Le Goater on Wed, 06 September 2006 20:25
		Re: Re: [RFC] network namespaces By: kir on Wed, 06 September 2006 15:09
		Re: [RFC] network namespaces By: ebiederm on Wed, 06 September 2006 20:40
		Re: [RFC] network namespaces By: ebiederm on Wed, 06 September 2006 23:25
		Re: [RFC] network namespaces By: Stephen Hemminger on Thu, 07 September 2006 00:53
		Re: [RFC] network namespaces By: ebiederm on Thu, 07 September 2006 05:11
		Re: [RFC] network namespaces By: Daniel Lezcano on Wed, 04 October 2006 09:40
		Re: [RFC] network namespaces By: ebiederm on Sun, 10 September 2006 11:48

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