From: Jamal Hadi Salim <jhs-jkUAjuhPggJWk0Htik3J/w@public.gmane.org>
To: "Fischer, Anna" <anna.fischer-VXdhtT5mjnY@public.gmane.org>
Cc: "dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org"
<dev-yBygre7rU0TnMu66kgdUjQ@public.gmane.org>,
"netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Herbert Xu
<herbert-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>,
David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Subject: Issues with openflow protocol WAS(RE: [GIT PULL v2] Open vSwitch
Date: Mon, 28 Nov 2011 09:07:10 -0500 [thread overview]
Message-ID: <1322489230.7338.71.camel@mojatatu> (raw)
In-Reply-To: <0199E0D51A61344794750DC57738F58E7586A74137-1IhDuF6AwYvulpxXP3Mx0dVKv6DIAtwysh7EHKopUjU@public.gmane.org>
On Mon, 2011-11-28 at 13:54 +0000, Fischer, Anna wrote:
> Yes, I mentioned this months ago, and I am surprised this critical
> issue has never been picked up on and addressed. With a flaw like
> this there is no chance this component can be used in any serious
> virtualization deployment where different customers share the same physical server.
>
> The path up to user-space needs to be designed in a multi-queue fashion, so that
> each vPort has its own queue up to user-space. Ideally those queues also need to
> be rate controlled in some form, so that no DoS is possible.
Good - more folks scrutinizing openflow ;->
That would resolve the kernel->user if in addition you then add
prioritization of those queues.
But even then also the same problem exists with open flow in the
northbound direction towards the external controller where
there is a single (TCP) socket.
cheers,
jamal
next prev parent reply other threads:[~2011-11-28 14:07 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-21 21:30 [GIT PULL v2] Open vSwitch Jesse Gross
[not found] ` <1321911029-20707-1-git-send-email-jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
2011-11-21 21:30 ` [PATCH v2 1/5] genetlink: Add genl_notify() Jesse Gross
2011-11-21 21:30 ` [PATCH v2 2/5] genetlink: Add lockdep_genl_is_held() Jesse Gross
2011-11-21 21:30 ` [PATCH v2 3/5] genetlink: Add rcu_dereference_genl and genl_dereference Jesse Gross
2011-11-21 21:30 ` [PATCH v2 4/5] vlan: Move vlan_set_encap_proto() to vlan header file Jesse Gross
2011-11-21 21:30 ` [PATCH v2 5/5] net: Add Open vSwitch kernel components Jesse Gross
[not found] ` <1321911029-20707-6-git-send-email-jesse-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
2011-11-21 21:59 ` Stephen Hemminger
[not found] ` <20111121135955.571254b1-We1ePj4FEcvRI77zikRAJc56i+j3xesD0e7PPNI6Mm0@public.gmane.org>
2011-11-21 23:18 ` Jesse Gross
[not found] ` <CAEP_g=8uoq7tJjUTAC_Sp3kOYwZJuKjD3J7Ratu67Kq56ZiyYA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-21 23:25 ` Stephen Hemminger
[not found] ` <20111121152518.79e82eb8-We1ePj4FEcvRI77zikRAJc56i+j3xesD0e7PPNI6Mm0@public.gmane.org>
2011-11-21 23:49 ` Michał Mirosław
2011-11-21 22:12 ` Stephen Hemminger
[not found] ` <20111121141235.71a5f8fd-We1ePj4FEcvRI77zikRAJc56i+j3xesD0e7PPNI6Mm0@public.gmane.org>
2011-11-21 23:23 ` Jesse Gross
2011-11-22 0:27 ` Stephen Hemminger
2011-11-22 17:03 ` Jesse Gross
2011-11-22 20:50 ` [GIT PULL v2] Open vSwitch David Miller
2011-11-22 23:18 ` Stephen Hemminger
[not found] ` <20111122151854.198da33d-We1ePj4FEcvRI77zikRAJc56i+j3xesD0e7PPNI6Mm0@public.gmane.org>
2011-11-23 5:34 ` Chris Wright
2011-11-23 7:54 ` Herbert Xu
[not found] ` <20111123075433.GA7928-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2011-11-23 8:12 ` Eric Dumazet
2011-11-23 8:21 ` Herbert Xu
2011-11-23 12:47 ` jamal
2011-11-23 12:55 ` Eric Dumazet
2011-11-23 13:44 ` Jamal Hadi Salim
2011-11-23 16:05 ` John Fastabend
[not found] ` <4ECD19AC.8090505-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2011-11-24 13:19 ` Jamal Hadi Salim
2011-11-27 19:34 ` Lennert Buytenhek
[not found] ` <20111127193438.GV795-OLH4Qvv75CYX/NnBR394Jw@public.gmane.org>
2011-11-27 21:31 ` jamal
2011-11-23 13:13 ` David Täht
[not found] ` <4ECCF17D.5020509-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2011-11-23 13:36 ` jamal
2011-11-23 14:15 ` Eric Dumazet
2011-11-24 13:04 ` Jamal Hadi Salim
2011-11-27 14:14 ` WANG Cong
2011-11-23 12:22 ` jamal
2011-11-28 13:04 ` Herbert Xu
[not found] ` <20111128130409.GB16828-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2011-11-28 13:54 ` Fischer, Anna
2011-11-28 14:51 ` Herbert Xu
[not found] ` <20111128145157.GA17678-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2011-11-30 6:21 ` Jesse Gross
2011-11-30 7:02 ` Herbert Xu
[not found] ` <20111130070219.GB32630-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2011-12-01 7:24 ` Simon Horman
2011-12-01 7:52 ` Herbert Xu
[not found] ` <20111201075237.GA12799-lOAM2aK0SrRLBo1qDEOMRrpzq4S04n8Q@public.gmane.org>
2011-12-01 8:06 ` Simon Horman
2011-12-02 23:00 ` Jesse Gross
[not found] ` <0199E0D51A61344794750DC57738F58E7586A74137-1IhDuF6AwYvulpxXP3Mx0dVKv6DIAtwysh7EHKopUjU@public.gmane.org>
2011-11-28 14:07 ` Jamal Hadi Salim [this message]
2011-11-28 18:44 ` Issues with openflow protocol WAS(RE: " Justin Pettit
[not found] ` <20124540-D566-41B0-B86F-0BCA19B948AA-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
2011-11-28 18:54 ` Fischer, Anna
2011-11-28 22:55 ` Jamal Hadi Salim
2011-11-28 16:04 ` Ben Pfaff
[not found] ` <20111128160400.GB6349-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
2011-11-28 18:52 ` Fischer, Anna
2011-11-28 14:02 ` Jamal Hadi Salim
2011-11-28 15:27 ` Martin Casado
2011-11-28 15:32 ` [ovs-dev] " Jamal Hadi Salim
2011-11-28 15:50 ` Martin Casado
2011-11-28 16:01 ` Ben Pfaff
[not found] ` <20111128160117.GA6349-l0M0P4e3n4LQT0dZR+AlfA@public.gmane.org>
2011-11-28 22:21 ` Jamal Hadi Salim
2011-11-28 23:14 ` [ovs-dev] " Ben Pfaff
2011-11-30 6:18 ` Jesse Gross
2011-11-30 7:06 ` Herbert Xu
[not found] ` <CAEP_g=-+F8bpkb8Qe1bPk65PQVNxz+VO7NoUrBCw6=GDUFbOFg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-11-30 13:23 ` jamal
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