perfSONAR User Q&A and Other Discussion

["Roderick Mooi" <>]

Hi Aaron

I added these lines to /etc/sysconfig/iptables and restarted the
iptables service on perfsonar1 and perfsonar2:

# bwping OWAMP Control (Incoming)
-A INPUT -m state --state NEW,ESTABLISHED -m tcp -p tcp --dport
4000:4100 -j ACCEPT

# bwping OWAMP Test (Incoming)
-A INPUT -m udp -p udp --dport 4000:4100 -j ACCEPT

Now it connects (control session seems to be working) and starts but I
get blank results / errors.

10 sent, 10 lost (100.000%), 0 duplicates
one-way delay min/median/max = nan/nan/nan ms, (err=0.228 ms)

OR

owping: FILE=protocol.c, LINE=2419, _OWPReadStopSessions: Unable to
read final H                                                            
                                                MAC block
owping: FILE=protocol.c, LINE=2453, _OWPReadStopSessions: Failed
owping: FILE=owping.c, LINE=1772, Test session(s) Failed...

I tried updating the owamp ports to bwctld.conf by adding owamp_port   
  5601-5900
and restarting bwctld and adding those ports to IP tables.

# bwping OWAMP Control (Incoming)
-A INPUT -m state --state NEW,ESTABLISHED -m tcp -p tcp --dport
4000:4100 -j ACCEPT
-A INPUT -m state --state NEW,ESTABLISHED -m tcp -p tcp --dport
5601:5900 -j ACCEPT

# bwping OWAMP Test (Incoming)
-A INPUT -m udp -p udp --dport 5601:5900 -j ACCEPT
-A INPUT -m udp -p udp --dport 4000:4100 -j ACCEPT

Now I get either blank results

10 sent, 10 lost (100.000%), 0 duplicates
one-way delay min/median/max = nan/nan/nan ms, (err=0.228 ms)
one-way jitter = nan ms (P95-P50)

OR

owping: FILE=protocol.c, LINE=2703, _OWPReadFetchAck: Unable to read
from socket.
owping: FILE=owping.c, LINE=1833, Unable to fetch data for
sid(9be8281ad760e959ff6d2f472aebc34e)

I suspect the test ports aren't open but which ports are those?

Thanks!

Regards,

Roderick

>>> On 2014-07-03 at 16:14, Aaron Brown 
>>> <>
>>>  wrote:
> Hey Roderick,
> 
> bwctl doesn’t reuse the owampd daemon (due to specifics of the
owamp and 
> bwctl protocols) so the owampd port range isn’t applicable. The
‘owamp test’ 
> port range defaults to 4000-4100 if it’s unset. Is that port range
open in the 
> firewall on your host?
> 
> Cheers,
> Aaron
> 
> On Jul 3, 2014, at 9:41 AM, Roderick Mooi 
> <>
>  wrote:
> 
>> Hi Aaron
>> 
>> [rmooi@perfsonar3
>>  ~]$ bwping -T owamp -s perfsonar1.sanren.ac.za -c
>> perfsonar2.sanren.ac.za
>> bwping: Using tool: owamp
>> bwping: 18 seconds until test results available
>> 
>> SENDER START
>> owping: FILE=owping.c, LINE=1598, Unable to open control connection
to
>> [155.232.40.26]:4003.
>> bwctl: local tool exited before expected with status=1
>> 
>> SENDER END
>> 
>> bwctl, bwping (ping) work fine. owampd and bwctld are running on
both
>> perfsonar1 and perfsonar2.
>> 
>> What do I have to do to get bwping -T owamp working?
>> 
>> Thanks!
>> 
>> Regards,
>> 
>> Roderick 
>> 
>>>>> On 2014-02-18 at 20:11, Aaron Brown 
>>>>> <>
>>>>>  wrote:
>>> Hi all,
>>> 
>>> A new version of BWCTL is now available. BWCTL 1.5.1 is a major
>> upgrade over 
>>> the previously released version.
>>> 
>>> Notable additions in this release:
>>> - Support for ping and owping (Run 'bwping -h' to see the
available
>> options)
>>> - Support for traceroute and tracepath (Run 'bwtraceroute -h' to
see
>> the 
>>> available options)
>>> - Support for iperf3, and improved support for nuttcp
>>> - Support for working behind a firewall for iperf3, ping,
traceroute
>> and 
>>> tracepath (use the "--flip" flag when the receiver is behind the
>> firewall)
>>> - Handles NTP unsync a bit better (the daemon start, but will deny
>> tests 
>>> until NTP is synchronized)
>>> 
>>> Those who are using the perfSONAR Toolkit, or otherwise have the
>> Internet2 
>>> RPM repository enabled, can run 'yum update' to get the latest
>> changes. For 
>>> those who are installing from source or prefer to install the RPMs
>> manually, 
>>> the newest version can be downloaded from
>> http://software.internet2.edu/ . 
>>> After installation, you will need to restart bwctld to use the new
>> features. 
>>> You can do this by running “/etc/init.d/bwctld restart”.
>>> 
>>> Please let us know if you have any questions and we look forward to

>>> everyone's continued feedback and support!
>>> 
>>> Thank you,
>>> The perfSONAR-PS Development Team
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> legal notice, and implemented Open Document Format (ODF) standard. 
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> 
> -- 
> This message is subject to the CSIR's copyright terms and conditions,
e-mail 
> legal notice, and implemented Open Document Format (ODF) standard. 
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> http://www.csir.co.za/disclaimer.html.
> 
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-- 
This message is subject to the CSIR's copyright terms and conditions, e-mail 
legal notice, and implemented Open Document Format (ODF) standard. 
The full disclaimer details can be found at 
http://www.csir.co.za/disclaimer.html.

This message has been scanned for viruses and dangerous content by 
MailScanner, 
and is believed to be clean.

Please consider the environment before printing this email.