OK, so you're asking how many packets does OVS buffer on an OpenFlow
connection? That was not clear from the question. It is documented in
ovs-vswitchd(8):
Packet buffering.
The OpenFlow specification, version 1.2, says:
Switches that implement buffering are expecte
Hi Ben
No doubt you are a legend but you are wrong in this question or I'm totally
screwed :)
I think you did not understand the question correctly. OvS has a buffer
mechanism for each controller. While trying to add a flow_mod with max_length
is not OFPCML_NO_BUFFER, the packets are stored in
Nice, Thanks!
Luca
On Thu, Apr 14, 2016 at 8:13 PM, Jesse Gross wrote:
> Future releases of OVS - both 2.5.x and follow on major releases -
> will include this patch. Once that happens, there will be no need to
> manually patch the source.
>
> On Thu, Apr 14, 2016 at 2:01 PM, Luca Prete wrote:
Future releases of OVS - both 2.5.x and follow on major releases -
will include this patch. Once that happens, there will be no need to
manually patch the source.
On Thu, Apr 14, 2016 at 2:01 PM, Luca Prete wrote:
> Joe,
>
> It worked out perfectly! Do you think would be possible to create a patc
On Thu, Apr 14, 2016 at 6:19 PM, Prathap T wrote:
> Hi Jesse:
>
> "Imagine a 1 bit long flow. The flow in the table has the value 0 and
> the mask is 1 (significant). There is also another mask with the value
> 0 (not significant). If a packet came in with the header value of 1
> and it tried th
Hi Jesse:
"Imagine a 1 bit long flow. The flow in the table has the value 0 and
the mask is 1 (significant). There is also another mask with the value
0 (not significant). If a packet came in with the header value of 1
and it tried the second mask first then the value would become 0,
matching th
Joe,
It worked out perfectly! Do you think would be possible to create a patch -
depending on the kernel version - so that people won't have to modify this
in the future?
Thanks,
Luca
On Wed, Apr 13, 2016 at 6:09 PM, Luca Prete wrote:
> Cool!
>
> I'll give it a try and I'll let you know how i
On Thu, Apr 14, 2016 at 11:09 AM, Prathap T wrote:
> Hi OVS-Team:
>
> We are porting OVS onto one of our hardware and I had a question in the
> kernel datapath implementation.
>
> In the function - masked_flow_lookup
>
> ovs_flow_mask_key(&masked_key, unmasked, mask);
> hash = flow_hash(&mas
> On Apr 14, 2016, at 12:38 AM, Zong Kai YL Li wrote:
>
> Can someone help fixing this issue, or is IPv6 in OVN is not complete yet and
> this is one in wish-list or to-do list?
IPv6 logical routers are not supported yet. I'm working on support, but it
will be at least a few weeks before I s
Hi OVS-Team:
We are porting OVS onto one of our hardware and I had a question in the
kernel datapath implementation.
In the function - *masked_flow_lookup*
ovs_flow_mask_key(&masked_key, unmasked, mask);
hash = flow_hash(&masked_key, &mask->range);
head = find_bucket(ti, hash);
(*n
On Thu, Apr 14, 2016 at 05:30:20PM +, Farhad Sunavala wrote:
> Hi,
> I am aware that the MAC address gets learnt only when the packet passes
> through a flow with NORMAL action.This is fine and works for some cases.
> However, it seems a little too restrictive.
> I am working on service funct
On Thu, Apr 14, 2016 at 07:17:47PM +0200, sreepriya wrote:
> Hi Ben,
>
> It's reporting that there's an error in your configuration. As long as
> > your configuration continues to have an error (that is, a port with a
> > bad name), it will report that there is one.
> >
>
> Ok. Deleting the bri
Hi,
I am aware that the MAC address gets learnt only when the packet passes through
a flow with NORMAL action.This is fine and works for some cases. However, it
seems a little too restrictive.
I am working on service function chaining and there are several network
functionsthat are implemented a
Hi Ben,
It's reporting that there's an error in your configuration. As long as
> your configuration continues to have an error (that is, a port with a
> bad name), it will report that there is one.
>
Ok. Deleting the bridge using ovs-del bridge is not removing the error.
Even restarting ovs doe
On Thu, Apr 14, 2016 at 06:30:24PM +0200, sreepriya wrote:
> Ok. But do you have any idea on why the error occur when I try to add a
> bridge/port with a proper name (<15 bytes) later?
It's reporting that there's an error in your configuration. As long as
your configuration continues to have an e
Ok. But do you have any idea on why the error occur when I try to add a
bridge/port with a proper name (<15 bytes) later?
This doesn't happen when optimisation is disabled. (CFLAGS="O1" is not
given during build. )
Also, even if the port/bridge is not created, it gets listed when I try
$ sudo ovs-
On Thu, Apr 14, 2016 at 04:19:24PM +0800, Haosen Wen wrote:
> Hi all,
>
> I made some modifications in modules mostly concerning about flowmods and
> actions, and when I ran "make", I got the following error message:
>
> *include/openflow/nicira-ext.h:142: error at "/": parse error*
> *make[2]: *
On Thu, Apr 14, 2016 at 05:51:28PM +0800, 鲁西 wrote:
> I have set two queues in a port .I want to know how many packets are
> waiting in the queues .Now I can only get the tx_packets of a queue
> ,can I get rx_packets of a queue?
OVS doesn't provide that information. I don't know whether the kerne
Hello,
I have set two queues in a port .I want to know how many packets are waiting in
the queues .Now I can only get the tx_packets of a queue ,can I get rx_packets
of a queue?
Do I need to modify the source code of ovs?
I'm looking forward to your reply.
Lucy
___
Thanks, Joe. Turns out that the model switch used (P-3290) does not support the
mod_ip_dst action in hardware, and therefore forwards all packets matching the
flow from asic to CPU, causing a “packet-list overflow” as logged in
/tmp/log/messages.
Kind regards,
Damiaan Twelker
> On 14 Apr 2016
Hi, all.
Recently, when I'm investigating networking-ovn, I found an issue about router interface creation in OVN.
As we known, in an networking-ovn enabled environment, for IPv4, when a subnet is attached to a router as interface, there will be a pair of patch ports created by OVN, one for swi
It's reporting that there's a port that can't be created.
On Thu, Apr 14, 2016 at 05:06:21PM +0200, sreepriya wrote:
> Once I got the previous error and if I try to add a bridge:
> sudo ovs-vsctl add-br br1
>
> Then I get the error:
> ovs-vsctl: Error detected while setting up 'br1'. See ovs-vswi
On Thu, Apr 14, 2016 at 01:52:31PM +, Majid Taleqani wrote:
> i am writing a DDOS mitigation for openflow networks using pox
> controller and open vSwitch version 1.9. as DDOS attacks aim at
> Flooding flow tables and input buffers, i wonder what is the maximum
> capacity of each switch por
Try by setting the datapath_type to netdev
ovs-vsctl add-br br1 -- set bridge br1 datapath_type=netdev
Thanks,
Monica
From: discuss [mailto:discuss-boun...@openvswitch.org] On Behalf Of sreepriya
Sent: Thursday, April 14, 2016 10:06 AM
To: Ben Pfaff
Cc: b...@openvswitch.org
Subject: Re: [ovs-di
Once I got the previous error and if I try to add a bridge:
sudo ovs-vsctl add-br br1
Then I get the error:
ovs-vsctl: Error detected while setting up 'br1'. See ovs-vswitchd log for
details.
Thanks,
Priya
On Thu, Apr 14, 2016 at 4:58 PM, Ben Pfaff wrote:
> On Thu, Apr 14, 2016 at 04:36:51PM
On Thu, Apr 14, 2016 at 04:36:51PM +0200, sreepriya wrote:
> I need some help in understanding the following log message better.
> I am working on doing some security tests for ovs.
> I am getting this error once I tried to add a port with a very long name
> (ovs-vsctl add-port) (more than 15 bytes
On 14 April 2016 at 07:36, sreepriya wrote:
> Hello,
>
> I need some help in understanding the following log message better.
> I am working on doing some security tests for ovs.
> I am getting this error once I tried to add a port with a very long name
> (ovs-vsctl add-port) (more than 15 bytes.)
Hello,
I need some help in understanding the following log message better.
I am working on doing some security tests for ovs.
I am getting this error once I tried to add a port with a very long name
(ovs-vsctl add-port) (more than 15 bytes.).
There is similar log if I try to add a switch with a sm
Hi Ben,
I see your point. The table lookup is far removed from output. But let's
replace write_action with apply_action and see your explanation again.
In this latter case the output would be caused by a group, which would be
caused by goto_table action that was found by a table_lookup and tab
hello
i am writing a DDOS mitigation for openflow networks using pox controller and
open vSwitch version 1.9. as DDOS attacks aim at Flooding flow tables and input
buffers, i wonder what is the maximum capacity of each switch port input
buffer. i know after the switch input buffer overflows the
I have tried the fix on master , it solved the problem .
Thanks & Regards,
Alok
-Original Message-
From: Jarno Rajahalme [mailto:ja...@ovn.org]
Sent: Thursday, April 14, 2016 7:43 AM
To: Maurya, Alok Kumar (HP Networking)
Cc: Ben Pfaff ; discuss@openvswitch.org
Subject: Re: [ovs-
Hi all,
I made some modifications in modules mostly concerning about flowmods and
actions, and when I ran "make", I got the following error message:
*include/openflow/nicira-ext.h:142: error at "/": parse error*
*make[2]: *** [include/openflow/nicira-ext.hstamp] Error 1*
*make[1]: *** [all-recurs
Hi,
This is my test result:
$ ovn/env3/packet2.sh
+ ovs-appctl ofproto/trace br-int
in_port=3,dl_src=00:00:00:00:00:03,dl_dst=00:00:00:00:00:01,tun_id=1,tun_metadata0=196609
-generate
Bridge: br-int
Flow:
tun_id=0x1,in_port=3,vlan_tci=0x,dl_src=00:00:00:00:00:03,dl_dst=00:00:00:00:00:01,dl_ty
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