Hi
I saw that OVS DPDK runs in userspace. Does that mean that it doesn't
use the exact flow cache anymore?
If it doesn't use how only the slow-path classifier can keep up with the
high packet rate of 10Gbps links?
If it uses the exact cache, can you point me to the code that runs the
exact flo
Hi,
Does NetFlow requires packets to go through the userspace (slow-path)?
If no, how NetFlow records are updated in kernel?
Thanks
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Is there any controller that can use multiple tables in Open vSwitch?
I think this is in OpenFlow 1.1 .
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Hi Justin,
Can you give me a hint for discussions or reference in the code about
this flow governor.
Masoud Moshref Javadi
Computer Engineering PhD Student
Ming Hsieh Department of Electrical Engineering
University of Southern California
On 12/13/2012 10:11 AM, Justin Pettit wrote:
General
I want to know where has been changed to triple the performance?
I checked the classifier.c file and it seems that the general algorithm
(going linearly through hashsets created by wildcards) is the same as
before.
--
Masoud Moshref Javadi
Computer Engineering PhD Student
Ming Hsieh
I read that there are two ways to implement rate-control in OVS: ingress
and egress using QoS queues.
Can these queues use HW queues?
When a packet comes for these queues, will it be handled completely in
kernel space? or it needs to go to userspace too.
Is there any limit for the number of QoS
Is there any parameter to set the size of this queue?
On 4/6/2012 3:22 PM, Jesse Gross wrote:
On Fri, Apr 6, 2012 at 2:25 PM, Masoud Moshref Javadi
wrote:
On 4/6/2012 9:20 AM, Jesse Gross wrote:
On Thu, Apr 5, 2012 at 7:16 PM, Masoud Moshref Javadi
wrote:
I have the following
you've defined. ovs-ofctl can work remotely, as described in the
man page.
If you just want visibility into the traffic flowing through your
switch, you may want to look at the built in NetFlow or sFlow support.
--Justin
On Apr 5, 2012, at 5:22 PM, Masoud Moshref Javadi w
On 4/6/2012 9:20 AM, Jesse Gross wrote:
On Thu, Apr 5, 2012 at 7:16 PM, Masoud Moshref Javadi
wrote:
I have the following experiment and whenever I check ovs-dpctl dump-flows,
it gives me less than 7k entries:
There are three machines A,B, and C. B runs openvswitch and connect the
other two
in advance
--
Masoud Moshref Javadi
Computer Engineering PhD Student
Ming Hsieh Department of Electrical Engineering
University of Southern California
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d all entries.
suppose 100k new flows (however, because of the previously mentioned
claim, it does not matter).
On 4/5/2012 5:41 PM, Jesse Gross wrote:
On Thu, Apr 5, 2012 at 5:26 PM, Masoud Moshref Javadi
wrote:
What is the maximum size of the kernel table?
There's no hard limit but the
What is the maximum size of the kernel table? What will happen if I have
100k flows per second, will they be dropped? queued?
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reasonable choice.
You can use "resubmit" along with a special OpenFlow table to map this
value to a destination.
On Mon, Mar 19, 2012 at 03:29:21PM -0700, Masoud Moshref Javadi wrote:
Hum, thanks I have not read that in detail.
OK, still I have question: We store the output of multipath
al
nicira-ext.h?
On Mon, Mar 19, 2012 at 03:08:37PM -0700, Masoud Moshref Javadi wrote:
I just want an example that fills the action part in the following rule:
ovs-ofctl add-flow br0 nw_src=10.0.0.1/32,nw_dst=10.0.0.1/32,action=?
The manual page says:
multipath(fields, basis, algorithm
faff wrote:
On Sat, Mar 17, 2012 at 10:41:05AM -0700, Masoud Moshref Javadi wrote:
Would anyone give an example for a multipath action in openvswitch? How
does the rule look like in ovs-ofctl command? What are the per-requisites?
It's all documented. Which part is troublesomee
Would anyone give an example for a multipath action in openvswitch? How
does the rule look like in ovs-ofctl command? What are the per-requisites?
Thanks
--
Masoud Moshref Javadi
Computer Engineering PhD Student
Ming Hsieh Department of Electrical Engineering
University of Southern California
Would anyone give an example for a multipath action in openvswitch? How
does the rule look like? What are the per-requisites?
Thanks
--
Masoud Moshref Javadi
Computer Engineering PhD Student
Ming Hsieh Department of Electrical Engineering
University of Southern California
ifier zeros the wildcards bits
for the flow and uses the hashmap to find the rule.
Now, the code makes sense to me.
Thank you for you clarification
Masoud
On 2/7/2012 1:21 PM, Jesse Gross wrote:
On Mon, Feb 6, 2012 at 9:25 PM, Masoud Moshref Javadi
wrote:
Thanks,
It seems that the bottle
Thanks,
It seems that the bottleneck can be the lookup in these userspace when
we have lots of new flows.
My question is how many table we can have in the userspace?
How many entry the kernel table can have?
Why did you use one table for each wildcards set, and not use tree based
data structure
=drop
priority=1000,nw_src=10.0.0.0/24,action=normal
--Justin
On Aug 17, 2011, at 10:38 AM, Masoud Moshref Javadi wrote:
Thank you for your answer.
Suppose that we have two rules: first, permits packet from 10.0.0.0/24 and the
other denies packets from 10.0.0.10 (with higher priority
ave thoughts on the subject, please respond to that thread.
--Justin
On Aug 17, 2011, at 6:04 AM, Masoud Moshref Javadi wrote:
Is there any support for arbitrary ranges for rules, for IP addresses or
port/protocol numbers. I mean something like 10.0.0.0 to 10.0.0.10.
If no, is there
Is there any support for arbitrary ranges for rules, for IP addresses or
port/protocol numbers. I mean something like 10.0.0.0 to 10.0.0.10.
If no, is there any plan for it?
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I am using OpenVSwitch implementation which is distributed with MiniNet
image file.
I want to change the maximum number of entries in the flow table. It
seems that statistics that are created in response of table stat request
are created in ofproto/ofproto.c in line: ots->max_entries =
htonl(
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