ADD A FLOW ENTRY


SirPilgrims
 

Hi everybody.

I'm trying to do a simple thing with the controller, but it doesn't works.

Configuration:

1 switch with 3 hosts:
h1->IP: 10.10.1.1/24, gw1->10.10.1.254/24
h2->IP: 10.10.2.1/24, gw2->10.10.2.254/24
h3->IP: 10.10.3.1/24, gw3->10.10.3.254/24

Using the simple forwarding everything is ok.

Now I'd like to redirect all the traffic from Port 1 (h1) to Port 2 (h2), so I added a flow entry:

Input Port:1
Ethernet Type: 0x800
Priority: 500
Add Output Port: 2

I choosed Priority = 500 because from the troubleshooting i saw that the Simple Forwarding Priority is 1.

The problem is that it doesn't works!
I saw that directly from wireshark doing a tcp request from h1 ("e.g. www.google.com")

Why?

Thanks,
Alessandro.
 





Michal Polkorab
 

Hi Alessandro,


could you provide more details ? For example what distribution are you using ? What is the date of your distribution ?

How do you add your flow - osgi, rest or gui ?

What about flowMod messages from the wireshark - are they present ? are they correct ?


Regards

Michal Polkorab


From: Alessandro Pellegrini <pellegrini.alessandro@...>
Sent: 22 May 2014 11:01
To: openflowjava-dev@...
Cc: openflowjava-dev-bounces@...; openflowplugin-dev@...
Subject: [openflowjava-dev] ADD A FLOW ENTRY
 
Hi everybody.

I'm trying to do a simple thing with the controller, but it doesn't works.

Configuration:

1 switch with 3 hosts:
h1->IP: 10.10.1.1/24, gw1->10.10.1.254/24
h2->IP: 10.10.2.1/24, gw2->10.10.2.254/24
h3->IP: 10.10.3.1/24, gw3->10.10.3.254/24

Using the simple forwarding everything is ok.

Now I'd like to redirect all the traffic from Port 1 (h1) to Port 2 (h2), so I added a flow entry:

Input Port:1
Ethernet Type: 0x800
Priority: 500
Add Output Port: 2

I choosed Priority = 500 because from the troubleshooting i saw that the Simple Forwarding Priority is 1.

The problem is that it doesn't works!
I saw that directly from wireshark doing a tcp request from h1 ("e.g. www.google.com")

Why?

Thanks,
Alessandro.
 




MichalPolkoráb

Software Developer


Mlynské Nivy 56 / 821 05 Bratislava / Slovakia
+421 918 378 907
/ michal.polkorab@...
reception: +421 2 206 65 111
/ www.pantheon.sk

logo


SirPilgrims
 

I downloaded the latest version about one week ago like the installion guide suggests.
https://wiki.opendaylight.org/view/OpenDaylight_Controller:Pulling,_Hacking,_and_Pushing_the_Code_from_the_CLI

I used the gui interface

Wireshark:

H1:
-ARP request and ARP reply between h1 and GW1
-TCP from H1 to Proxy

H2:
-ARP request and ARP reply between h2 and GW2

H3
-ARP request and ARP reply between h3 and GW3

So, i thought to find the same TCP packet in h2, but nothing.
Do you need anything else?

Regards,
Alessandro.



From: michal.polkorab@...
To: pellegrini.alessandro@...; openflowjava-dev@...
CC: openflowjava-dev-bounces@...; openflowplugin-dev@...
Subject: RE: [openflowjava-dev] ADD A FLOW ENTRY
Date: Thu, 22 May 2014 09:23:43 +0000

Hi Alessandro,



could you provide more details ? For example what distribution are you using ? What is the date of your distribution ?

How do you add your flow - osgi, rest or gui ?

What about flowMod messages from the wireshark - are they present ? are they correct ?



Regards

Michal Polkorab


From: Alessandro Pellegrini <pellegrini.alessandro@...>
Sent: 22 May 2014 11:01
To: openflowjava-dev@...
Cc: openflowjava-dev-bounces@...; openflowplugin-dev@...
Subject: [openflowjava-dev] ADD A FLOW ENTRY
 
Hi everybody.

I'm trying to do a simple thing with the controller, but it doesn't works.

Configuration:

1 switch with 3 hosts:
h1->IP: 10.10.1.1/24, gw1->10.10.1.254/24
h2->IP: 10.10.2.1/24, gw2->10.10.2.254/24
h3->IP: 10.10.3.1/24, gw3->10.10.3.254/24

Using the simple forwarding everything is ok.

Now I'd like to redirect all the traffic from Port 1 (h1) to Port 2 (h2), so I added a flow entry:

Input Port:1
Ethernet Type: 0x800
Priority: 500
Add Output Port: 2

I choosed Priority = 500 because from the troubleshooting i saw that the Simple Forwarding Priority is 1.

The problem is that it doesn't works!
I saw that directly from wireshark doing a tcp request from h1 ("e.g. www.google.com")

Why?

Thanks,
Alessandro.
 




MichalPolkoráb

Software Developer


Mlynské Nivy 56 / 821 05 Bratislava / Slovakia
+421 918 378 907
/ michal.polkorab@...
reception: +421 2 206 65 111
/ www.pantheon.sk

logo


Michal Polkorab
 

​When switch processes packets, it compares them against installed flows. If there is no matching flow, then the table-miss flow entry occurs (if it is installed). If the table-miss flow entry is not installed, the packet is dropped (according to OF specification).

When you want every packet to be routed to some node, you have to install table-miss flow entry (and possibly delete all other flows - in case the received packet would match one of them).
In order to install the table-miss flow entry you have to use priority = 0, and no Ethernet type specified in your match. Output Action should stay the same.

Michal

From: Alessandro Pellegrini <pellegrini.alessandro@...>
Sent: 22 May 2014 12:05
To: Michal Polkoráb; openflowjava-dev@...
Cc: openflowjava-dev-bounces@...; openflowplugin-dev@...
Subject: RE: [openflowjava-dev] ADD A FLOW ENTRY
 
I downloaded the latest version about one week ago like the installion guide suggests.
https://wiki.opendaylight.org/view/OpenDaylight_Controller:Pulling,_Hacking,_and_Pushing_the_Code_from_the_CLI

I used the gui interface

Wireshark:

H1:
-ARP request and ARP reply between h1 and GW1
-TCP from H1 to Proxy

H2:
-ARP request and ARP reply between h2 and GW2

H3
-ARP request and ARP reply between h3 and GW3

So, i thought to find the same TCP packet in h2, but nothing.
Do you need anything else?

Regards,
Alessandro.



From: michal.polkorab@...
To: pellegrini.alessandro@...; openflowjava-dev@...
CC: openflowjava-dev-bounces@...; openflowplugin-dev@...
Subject: RE: [openflowjava-dev] ADD A FLOW ENTRY
Date: Thu, 22 May 2014 09:23:43 +0000

Hi Alessandro,



could you provide more details ? For example what distribution are you using ? What is the date of your distribution ?

How do you add your flow - osgi, rest or gui ?

What about flowMod messages from the wireshark - are they present ? are they correct ?



Regards

Michal Polkorab


From: Alessandro Pellegrini <pellegrini.alessandro@...>
Sent: 22 May 2014 11:01
To: openflowjava-dev@...
Cc: openflowjava-dev-bounces@...; openflowplugin-dev@...
Subject: [openflowjava-dev] ADD A FLOW ENTRY
 
Hi everybody.

I'm trying to do a simple thing with the controller, but it doesn't works.

Configuration:

1 switch with 3 hosts:
h1->IP: 10.10.1.1/24, gw1->10.10.1.254/24
h2->IP: 10.10.2.1/24, gw2->10.10.2.254/24
h3->IP: 10.10.3.1/24, gw3->10.10.3.254/24

Using the simple forwarding everything is ok.

Now I'd like to redirect all the traffic from Port 1 (h1) to Port 2 (h2), so I added a flow entry:

Input Port:1
Ethernet Type: 0x800
Priority: 500
Add Output Port: 2

I choosed Priority = 500 because from the troubleshooting i saw that the Simple Forwarding Priority is 1.

The problem is that it doesn't works!
I saw that directly from wireshark doing a tcp request from h1 ("e.g. www.google.com")

Why?

Thanks,
Alessandro.
 




MichalPolkoráb

Software Developer


Mlynské Nivy 56 / 821 05 Bratislava / Slovakia
+421 918 378 907
/ michal.polkorab@...
reception: +421 2 206 65 111
/ www.pantheon.sk

logo 

MichalPolkoráb

Software Developer


Mlynské Nivy 56 / 821 05 Bratislava / Slovakia
+421 918 378 907
/ michal.polkorab@...
reception: +421 2 206 65 111
/ www.pantheon.sk

logo