Switch not getting connected (solved)

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Eder Ollora

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Oct 19, 2023, 6:06:55 AM10/19/23

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Quick update: pingall is working, thanks a lot man. I did it without CLI only used GUI for activating proxy and fwd.

Thanks & Regards,

Harsh Bijwe.

Personal mail id: harsh...@gmail.com

Contact: 8234074223.

On Wed, Oct 18, 2023 at 2:38 PM Harsh Bijwe <harsh...@gmail.com> wrote:

Hi Eder,

Performed Step 1 successfully but at Step 2 it says onos: command not found. I eventually did some googling and found out I shall run onos/tools/test/bin/onos localhost. It ran but it was continuously asking for a password. I am entering rocks/karaf, but no help.

Thanks & Regards,
Harsh Bijwe.
Personal mail id: harsh...@gmail.com
Contact: 8234074223.

On Tue, Oct 17, 2023 at 5:03 PM Eder Ollora <gan...@gmail.com> wrote:
Hi,

Do the following:

1) in a first terminal
cd
git clone https://github.com/opennetworkinglab/onos.git
cd onos
git branch -m remotes/origin/onos-2.7
bazel run onos-local -- clean

2) in a second terminal and wait for some time
onos localhost

3) in a third terminal, run a topology
sudo mn --switch=ovsk,protocols=OpenFlow13 --mac --controller=remote --topo single,2
pingall

4) Run apps -s -a (in onos localhost) and paste it here

(if not proxyarp, then app activate proxyarp)

Try and see if this works

Cheers,

On Tue, 17 Oct 2023 at 12:58, Harsh Bijwe <harsh...@gmail.com> wrote:

I got the attached output.

Thanks & Regards,
Harsh Bijwe.
Personal mail id: harsh...@gmail.com
Contact: 8234074223.

On Tue, Oct 17, 2023 at 4:16 PM Eder Ollora <gan...@gmail.com> wrote:
Hi,

1) You might want to deactivate:

app deactivate tunnel
app deactivate ovsdb-base
app deactivate ovsdbhostprovider
app deactivate ovsdb
app deactivate drivers.ovsdb
app deactivate drivers
app deactivate drivers.optical
app deactivate drivers.polatis.openflow

and also you might want to:

app activate proxyarp

2) Also, please use the output from ONOS to show me :)

3) Also please go to: http://localhost:8181/onos/ui/login.html and do onos / rocks . Let's see if there any switches and hosts (you can type h if you can/cannot see anything)

And check if there are any issue .

Cheers

On Tue, 17 Oct 2023 at 12:34, Harsh Bijwe <harsh...@gmail.com> wrote:
Yeah Eder,

Output 1:
onos@root > apps -s -a 16:02:33
* 4 org.onosproject.hostprovider 2.7.0 Host Location Provider
* 5 org.onosproject.lldpprovider 2.7.0 LLDP Link Provider
* 6 org.onosproject.optical-model 2.7.0 Optical Network Model
* 7 org.onosproject.openflow-base 2.7.0 OpenFlow Base Provider
* 8 org.onosproject.openflow 2.7.0 OpenFlow Provider Suite
* 9 org.onosproject.tunnel 2.7.0 Tunnel Subsystem
* 10 org.onosproject.ovsdb-base 2.7.0 OVSDB Provider
* 11 org.onosproject.ovsdbhostprovider 2.7.0 OVSDB host Provider
* 12 org.onosproject.ovsdb 2.7.0 OVSDB Southbound Meta
* 13 org.onosproject.drivers.ovsdb 2.7.0 Generic OVSDB Drivers
* 18 org.onosproject.drivers 2.7.0 Default Drivers
* 22 org.onosproject.drivers.optical 2.7.0 Basic Optical Drivers
* 23 org.onosproject.drivers.polatis.openflow 2.7.0 Polatis OpenFlow Device Drivers
* 30 org.onosproject.gui2 2.7.0 ONOS GUI2
* 33 org.onosproject.fwd 2.7.0 Reactive Forwarding
* 166 org.onosproject.dhcp 2.7.0 DHCP Server
onos@root >

Output 2:

sudo mn --switch=ovsk,protocols=OpenFlow13 --mac --controller=remote --topo single,2
*** Creating network
*** Adding controller
Connecting to remote controller at 127.0.0.1:6653
*** Adding hosts:
h1 h2
*** Adding switches:
s1
*** Adding links:
(h1, s1) (h2, s1)
*** Configuring hosts
h1 h2
*** Starting controller
c0
*** Starting 1 switches
s1 ...
*** Starting CLI:
mininet> pingall
*** Ping: testing ping reachability
h1 -> X
h2 -> X
*** Results: 100% dropped (0/2 received)
mininet>

Thanks & Regards,
Harsh Bijwe.
Personal mail id: harsh...@gmail.com
Contact: 8234074223.

On Tue, Oct 17, 2023 at 3:58 PM Eder Ollora <gan...@gmail.com> wrote:
Hi,

First, please can you run this "apps -s -a" and send the output command?

Also, can you run this?

sudo mn --switch=ovsk,protocols=OpenFlow13 --mac --controller=remote --topo single,2

Cheers,

On Tue, 17 Oct 2023 at 12:19, Harsh Bijwe <harsh...@gmail.com> wrote:
I will explain everything I am doing from the start.

1. I start the ONOS controller by command:  sudo /opt/onos/bin/onos-service start

I get following log: (.....)

2. Then I start the ONOS CLI by: sudo /opt/onos/bin/onos -l onos

I get this:

Password authentication
Password:
Welcome to Open Network Operating System (ONOS)!
____ _ ______ ____
/ __ \/ |/ / __ \/ __/
/ /_/ / / /_/ /\ \
\____/_/|_/\____/___/

Documentation: wiki.onosproject.org
Tutorials:   tutorials.onosproject.org
Mailing lists: lists.onosproject.org

Come help out! Find out how at: contribute.onosproject.org

Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'logout' to exit ONOS session.

onos@root >

3. I create Mininet by: sudo mn --controller remote

I get:

*** Creating network
*** Adding controller
Connecting to remote controller at 127.0.0.1:6653
*** Adding hosts:
h1 h2
*** Adding switches:
s1
*** Adding links:
(h1, s1) (h2, s1)
*** Configuring hosts
h1 h2
*** Starting controller
c0
*** Starting 1 switches
s1 ...
*** Starting CLI:
mininet> pingall
*** Ping: testing ping reachability
h1 -> X
h2 -> X
*** Results: 100% dropped (0/2 received)

Which is expected since I did not enable fwd in the 2nd step.

4. Now I turn on the fwd on ONOS CLI

I get

onos@root > app activate fwd 15:42:13
Activated org.onosproject.fwd
onos@root >

5. Now I do pingall still result is:

mininet> pingall
*** Ping: testing ping reachability
h1 -> X
h2 -> X
*** Results: 100% dropped (0/2 received)

Note I also tried creating topology again by exiting mininet and sudo mn -c then sudo mn --controller remote. But the results are the same. Please help me ping.

Thanks & Regards,
Harsh Bijwe.
Personal mail id: harsh...@gmail.com
Contact: 8234074223.

On Tue, Oct 17, 2023 at 3:31 PM Eder Ollora <gan...@gmail.com> wrote:
Hi,

Please add all the description from when ONOS starts until OvS gets disconnected.

Cheers,

On Tue, 17 Oct 2023 at 11:59, Harsh Bijwe <harsh...@gmail.com> wrote:
Hi,

Thanks for the reply. Yeah I am able to run and exit from mininet as specified by you.

Thanks & Regards,
Harsh Bijwe.
Personal mail id: harsh...@gmail.com
Contact: 8234074223.

On Tue, Oct 17, 2023 at 3:25 PM Eder Ollora <gan...@gmail.com> wrote:
Hi,

Let's see. You can run mininet, but mininet continues coming up. Can you actually stop it?

sudo mn --topo single,5 --switch=ovsk,protocols=OpenFlow13 --controller remote,ip=127.0.0.1 --mac

Then:

mininet> exit

if you cannot exit, then run:

sudo ps o pgid,args | grep mininet: | sudo awk '{system("sudo kill --signal SIGSTOP -"$1)}' -

Let me know if you have more problems which I guess you do but let's take one minute at a time :)

cheers

On Tue, 17 Oct 2023 at 11:03, Harsh Bijwe <harsh...@gmail.com> wrote:
Dear Sir,

Please help me. I am stuck at this error since 2 weeks. I am running ONOS 2.7.0 on Ubuntu 18. I am getting Switch Connected and then suddenly switch disconnects. I cannot do ping from one host to other even after enabling forwarding and open flow. Here is log.

14:28:08.940 INFO [MeterManager] Configured. PurgeOnDisconnection is disabled
14:28:08.941 INFO [MeterManager] UserDefinedIndex is disabled
14:28:09.430 INFO [ContextHandler] Started HttpServiceContext{httpContext=WebAppHttpContext{org.onosproject.onos-apps-dhcp-app - 216}}
14:28:09.485 INFO [ContextHandler] Started HttpServiceContext{httpContext=WebAppHttpContext{org.onosproject._onos-gui2-base-jar - 198}}
14:28:09.538 INFO [ContextHandler] Started HttpServiceContext{httpContext=WebAppHttpContext{org.onosproject.onos-rest - 197}}
14:30:46.005 INFO [ServerUserAuthService] Session onos@/127.0.0.1:56670 authenticated
14:31:32.784 INFO [OFChannelHandler] New switch connection from /127.0.0.1:56918
14:31:32.888 INFO [OFChannelHandler] Switch disconnected callback for sw:[/127.0.0.1:56918 DPID[?]]. Cleaning up ...
14:31:32.888 WARN [OFChannelHandler] no dpid in channelHandler registered for disconnected switch [/127.0.0.1:56918 DPID[?]]
ssh-keygen -f "/root/.ssh/known_hosts" -R "[localhost]:8101"

I think problem is switch getting disconnected suddenly after connection. How can I resolve this issue?

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