Hello,
I need a tool to feel up the flow tables in ofproto.
do you know what tool/other should i use ?
Thank you in advance - Sara
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o run some algo. on these flows (e.g. try to
generate megaflows .. )
i know that i can do it with sdn controller - is there other tools ?
Thanks you in advance - Sara
On Tue, Jul 11, 2017 at 6:38 PM, Ben Pfaff wrote:
> On Tue, Jul 11, 2017 at 10:58:39AM +0300, Sara Gittlin wrote:
>> I need
Hello,
I need a real dataset of network traffic with diverse matching fields.
this is required for 2 different tasks
based on this dataset i need to populate :
- openflow tables in userspace (task 1)
- datapath cache (task 2)
my questions :
- is there any dataset available?
- how to
On Wed, Jul 12, 2017 at 11:40:41AM +0300, Sara Gittlin wrote:
> Thank you Ben
>
> >> I need a tool to feel up the flow tables in ofproto.
> >> do you know what tool/other should i use ?
>
> >What does it mean "to feel up" a flow table?
>
> i want
On Sun, Jul 16, 2017 at 09:37:05AM +0300, Sara Gittlin wrote:
> On Wed, Jul 12, 2017 at 11:40:41AM +0300, Sara Gittlin wrote:
> > Thank you Ben
> >
> > >> I need a tool to feel up the flow tables in ofproto.
> > >> do you know what tool/other should i use ?
On Mon, Jul 17, 2017 at 8:21 PM, Ben Pfaff wrote:
> On Mon, Jul 17, 2017 at 10:47:12AM +0300, Sara Gittlin wrote:
>> On Sun, Jul 16, 2017 at 09:37:05AM +0300, Sara Gittlin wrote:
>> > On Wed, Jul 12, 2017 at 11:40:41AM +0300, Sara Gittlin wrote:
>> > > Thank you Ben
e mininet tutorials for creating large topologies with nox or
> pox, then run dump-flows accordingly.
>
> https://inside-openflow.com/2016/06/29/custom-mininet-
> topologies-and-introducing-atom/
>
>
> Thanks,
>
> On Wed, Jul 19, 2017 at 7:12 AM, Sara Gittlin
> wrote
Hello,
I understand that there is a support for megaflows in the kernel and netlink.
I also understand that there is no megaflow implementation in ofproto.
i.e. there is no implementation of compressing (if possible) all flows
in ofproto table to megaflows and installing it in the datapath. is
that
on to
received packets."
Thanks in advance - Sara
On Mon, Jul 24, 2017 at 10:58 PM, Joe Stringer wrote:
> On 23 July 2017 at 06:37, Sara Gittlin wrote:
>> Hello,
>> I understand that there is a support for megaflows in the kernel and netlink.
>> I also understand that there i
I understand that this citation refers to the kernel microflows tables.
the kernel megaflows table *can be* pre-populated. Correct ?
Sara
On Mon, Aug 14, 2017 at 9:31 AM, Sara Gittlin wrote:
> Thanks you Joe
> the following citation is in a contradiction to the idea of
> pre-p
00:35, Sara Gittlin wrote:
>> I understand that this citation refers to the kernel microflows tables.
>> the kernel megaflows table *can be* pre-populated. Correct ?
>> Sara
>>
>> On Mon, Aug 14, 2017 at 9:31 AM, Sara Gittlin wrote:
>>> Thanks you Joe
>
Thank you Joe
Few questions:
1. Are there 2 separate flow tables in the kernel data-path ? for
microflows and megaflows ?
2. If the answer is yes :
- When pkt arrives, is it first checked against the microflows
table and if there is no match, then it checked against the megaflows
table ?
I took a look at the datapath code - saw only single table, which
its entries are microflows and megaflows
the megaflows are indicated by non-zero mask fields
Sara
On Wed, Aug 16, 2017 at 9:59 AM, Sara Gittlin wrote:
> Thank you Joe
> Few questions:
> 1. Are there 2 separate flow
Hi,
Suppose we support megaflows, How the hashing is performed in the
kernel module ?
when packet arrives how do we know 'beforehand' to mask key fields in
order to hit the megaflow entry ?
Thank in advance
Sara
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Thu, Aug 17, 2017 at 9:59 AM, Justin Pettit wrote:
>
>> On Aug 16, 2017, at 11:56 PM, Sara Gittlin wrote:
>>
>> Hi,
>> Suppose we support megaflows, How the hashing is performed in the
>> kernel module ?
>> when packet arrives how do we know 'beforehan
One more - I did not see in the article that if a match is found in
megaflow cache - then a microflow is generated to be installed in the
microflow cache to improve performance for subsequnce packets
Sara
On Mon, Aug 21, 2017 at 2:21 PM, Sara Gittlin wrote:
> Thank you Justin,
> Indee
Pettit wrote:
>
>> On Aug 21, 2017, at 8:19 AM, Sara Gittlin wrote:
>>
>> One more - I did not see in the article that if a match is found in
>> megaflow cache - then a microflow is generated to be installed in the
>> microflow cache to improve performance for subs
Hello,
Few questions:
1. There are 3 calls to udpif_upcall_handler to create 'revalidator'
and 'handler' threads - why is that ?
2. Is there a code API (other than cli) to retrieve all OpenFlow
entries from ofproto tables ? get first , get next etc ..
3. When an openflow entry/flow is ret
Hello,
1. Is there an API (other than cli) to retrieve all OpenFlow
entries from ofproto tables ? get first , get next etc ..
2. When an openflow entry/flow is retrieved - how can i
identify/understand the **form** of the entry i.e. what are the
fields/keys to match on ? e.g. ETH + VLAN ,
Hello
Can someone refer to the code where a new flow is inserted to
openflow tables in the OVS, as a consequence action of a received
message from a controller?
Thanks in advance
--Sara
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Hello
I understand that microflow kernel cache entries consist of full set of
header keys.
What about a l2 pkt e.g cfm pkt. What are the hash keys for cfm pkt in the
single microflow table?
Thank you in advance
Sara
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that there is only a single microflow table so classification
takes O(1).
--Sara
On Mon, Nov 20, 2017 at 7:38 PM, Ben Pfaff wrote:
> On Thu, Nov 16, 2017 at 07:46:05PM +0200, Sara Gittlin wrote:
>> I understand that microflow kernel cache entries consist of full set of
>> heade
take a look at vxlan setup - it is similar
http://docs.openvswitch.org/en/latest/howto/userspace-tunneling/
--Sara
On Thu, Dec 21, 2017 at 10:51 AM, Hui Xiang wrote:
> Hi folks,
>
> I have added a dpdk device in ovs bridge 'br-dpdk' in the compute host,
> and expect the Geneve tunnel can send p
Hello all,
I cannot find the definition of the function rule_collection_add - used in
ofproto.c
is it a dynamic library function ?
Thank you
-Sara
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Hello all
Can someone refer me to the code of the megaflow generation process ?
Is this process invoked by an upcall from the kernel module ? like in
microflow ?
Thank you in advance
-Sara
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t least in the ovs-dpdk (userspace datapath) context.
>
> Regards,
> Billy
>
> > -Original Message-
> > From: ovs-discuss-boun...@openvswitch.org [mailto:ovs-discuss-
> > boun...@openvswitch.org] On Behalf Of Ben Pfaff
> > Sent: Monday, August 27,
mode and to send to
the kernel.
Another question is, who is responsible to associate a specific megaflow
to the appropriate table in the cache ? is it the kernel module or
vswitchd ?
Thank you
-Sara
On Tue, Aug 28, 2018 at 1:12 PM Sara Gittlin wrote:
> Thank you Ben and Billy
> -Sara
i think i can 'ride on' the callback "dpctl_put_flow" - which is invoked
whenever the cli 'ovs-dpctl add-flow' is executed.correct ?
On Thu, Aug 30, 2018 at 10:32 AM Sara Gittlin
wrote:
> Billy,
> Can you please refer me to the code where we start the me
tor (8) is a possibility. Turning on vswitchd debug in the relevant
> module is another possibility.
>
>
>
> Hope some of that helps,
>
>
>
> Billy.
>
>
>
>
>
>
>
> *From:* Sara Gittlin [mailto:sara.gitt...@gmail.com]
> *Sent:* Thursday, August 30,
Hello
can someone refer me to the steps required to add c or h file to OVS.
Thank you
-Sara
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I know that i have to add it to the automake.mk , is it enough ?
On Thu, Aug 30, 2018 at 4:07 PM Sara Gittlin wrote:
> Hello
> can someone refer me to the steps required to add c or h file to OVS.
> Thank you
> -Sara
>
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Hello
can you give the correct syntax to use "ovs-ofctl add-flow" for packet
destined to ip=x and dest-port=y, the action should be output to port z
Thank you
-Sara
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Thank you Mark
-Sara
On Tue, Dec 18, 2018 at 8:55 PM Mark Michelson wrote:
> On 12/18/18 8:33 AM, Sara Gittlin wrote:
> > Hello
> > can you give the correct syntax to use "ovs-ofctl add-flow" for packet
> > destined to ip=x and dest-port=y, the action should be
Hello
I have a very simple setup in server A : br0 and then I add my
communication interface [interface to outside network] to br0.
after that i cannot ssh server A . why ?
also after reboot when i run ovs - the DB is persistent - and i loose
communication again. how to delete the DB file befo
Ok - found the answer for the 1st question in
http://docs.openvswitch.org/en/latest/faq/issues/
you have to assign the ip-address to the br0.
what about my 2nd question : how to delete the persistent ovs configuration
file before running ovs ?
-Sara
On Wed, Dec 19, 2018 at 1:31 PM Sara Gittlin
Hello
i have 3 physical interfaces eth0, eth1,eth2 in my server A
eth0 is the interface to reach the default GW and it is also the
communication interface - i.e. I can reach A only through eth0.
eth1 and eth2 are connected back to back to another server B.
**My requirement** is to send packets f
Hi
Maybe this is a stupid question. but do we use HW cache for e.g flow-table
with ovs-dpdk ?
Thank you
-Sara
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