perfSONAR User Q&A and Other Discussion

[Aaron Brown <>]

Hey Roderick,

Could you try running bwping with ‘-x’ so that it grabs the server side of 
the test as well?

Cheers,
Aaron

On Jul 4, 2014, at 5:02 AM, Roderick Mooi 
<>
 wrote:

> 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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> -- 
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> The full disclaimer details can be found at 
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> 
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> Please consider the environment before printing this email.
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