Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)

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agmimi

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Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« on: December 06, 2017, 12:49:31 AM »
Hello

We recently purchased the classroom pack of Zodiac FX switches. I made some small-scale tests to verify compatibility of ONOS (1.13.0) and the switches and noticed some issues.

While the discovery of the switch and the installation of flows seems to work fine, I got a set of errors and warnings from ONOS side when the flows expire.
I have attached the logs in case someone can inspect them and identify the core issue.
From a quick inspection, it seems that the switch disconnects momentarily from ONOS and then reconnects after the flows expire.
This issue reproduces every time the process is repeated.
The testbed was fairly simple, consisting of one switch and two servers pinging each other.

In addition to the aforementioned issue, I also noticed the following.
While the two hosts were pinging each other, the RTT would occasionally jump from 0.8ms to approx 20 ms.
I do not believe that the flow was removed from the switch at this time since the ping was every 1 sec and the timeout 5 sec. Might be a hardware related issue?
Note that I was not able to reproduce the ping RTT issue again, so it might have been a one-off.

Apart from the ping, no other traffic flows were active at the time.

Best,
Angelos Mimidis

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Paul Zanna

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #1 on: December 06, 2017, 10:26:24 AM »
Hi Angelos,

I'll take a look at the logs and see if I can find whats causing the ONOS disconnects. As for the ping times, I have seen this happen sometimes when a host is busy and is slow at responding to a ping (i.e Anti-virus, disk write, etc.). It may also happen if a flow time outs and a ping happen at the exact same time then the delay is ONOS recreating the flow.

If you are able reproduce it please let me know.

Regards,
Paul

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agmimi

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #2 on: December 13, 2017, 10:10:58 PM »
HI Paul,

The increase in delay with ping seems to appear at random times.
I have noticed it a couple of times, but I am unable to forcefully reproduce it.

Did you have the chance to go through the logs yet?

Regards, Angelos

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Paul Zanna

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #3 on: December 15, 2017, 07:21:16 AM »
Hi Angelos,

I've looked through the logs and have been able to reproduce the issue which looks to be a message format issue with the flow removed notifications, but it only seems to affect Java based controllers (i.e. ONOS, ODL, Floodlight). We have a firmware update due out just after Christmas so a fix will be included in that release.

Regards,
Paul

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agmimi

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #4 on: January 30, 2018, 09:26:07 PM »
Hi Paul,

Sorry to bother you again. Are there any updates on this ONOS bug?
In GIT, the latest firmware I can see is 0.82 but maybe I am missing something(?)

Thanks,
Angelos

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Paul Zanna

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #5 on: January 31, 2018, 03:41:36 PM »
Hi Angelos,

The issue has been fixed but I still testing the update. If you would like to test the latest build with ONOS to make sure it's fixed please send an email to support@northboundnetworks.com and I can send it to you.

Regards,
Paul

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agmimi

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #6 on: February 01, 2018, 06:16:49 PM »
Hi Paul,

If it is possible just notify me when you push the update with the fix.

Regards, Angelos

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Paul Zanna

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Re: Issue with ONOS 1.13.0 and Zodiac FX (firmware 0.82)
« Reply #7 on: February 03, 2018, 03:06:43 PM »
Hi Angelos,

It has now been fixed in v0.83 which can be downloaded from HERE. Please let me know if you have any further issues.

Regards,
Paul