perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

web100clt will work, even if the java/http based tester is not being 
maintained:

> [zurawski@bnl-pt1
>  ~]$ ./web100clt -n ndt.wash.net.internet2.edu
> Testing network path for configuration and performance problems  --  Using 
> IPv6 address
> Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
> checking for firewalls . . . . . . . . . . . . . . . . . . .  Done
> running 10s outbound test (client to server) . . . . .  808.36 Mb/s
> running 10s inbound test (server to client) . . . . . . 982.90 Mb/s
> The slowest link in the end-to-end path is a 1.0 Gbps Gigabit Ethernet 
> subnet
> Information: Other network traffic is congesting the link
> Server 'ndt.wash.net.internet2.edu' is not behind a firewall. [Connection 
> to the ephemeral port was successful]
> Client is probably behind a firewall. [Connection to the ephemeral port 
> failed]
> Packet size is preserved End-to-End
> Information: Network Address Translation (NAT) box is modifying the 
> Server's IP address
>       Server says [2001:468:9:11::16:3] but Client says [ 
> eth-1.nms-rexp.wash.net.internet2.edu]
> Information: Network Address Translation (NAT) box is modifying the 
> Client's IP address
>       Server says [2001:400:6401:1150::3] but Client says [ 
> bnl-pt1-v6.es.net]

Thanks;

-jason

On Aug 14, 2014, at 8:23 AM, Aaron Brown 
<>
 wrote:

> One thing that you may be able to do is to have someone at WVSU try running 
> an NDT test to http://nms-rexp.wash.net.internet2.edu:7123/ . I *think* 
> that host is still up, but I’m not positive.
> 
> Cheers,
> Aaron
> 
> On Aug 14, 2014, at 9:19 AM, Aaron Brown 
> <>
>  wrote:
> 
>> Hey Pol,
>> 
>> Would it be possible to get someone to install either bwctl, or to stand 
>> up a perfSONAR Toolkit LiveCD at WVSU? Preferably, somewhere close to the 
>> campus edge.
>> 
>> Cheers,
>> Aaron
>> 
>> On Aug 13, 2014, at 6:30 PM, Pol Llovet 
>> <>
>>  wrote:
>> 
>>> Nope!  We haven't seen any additional movement on this.  The last bit of 
>>> information was the testing to the OSU endpoint. To recap: throughput to 
>>> OSU is symmetrically bad, but not as bad as the asymmetric throughput to 
>>> WVSU.  Throughputh to wash.net.internet2.edu looks good as the last 
>>> "known good" hop on the trace.  
>>> 
>>> Not sure where to go next, actually.  This is just itch-scratching since 
>>> I don't need to ship data to WVSU, and our network looks ok (this appears 
>>> to be an OAR/WVSU problem).  I'd be curious to find out what's wrong (and 
>>> so, presumably, would WVSU), but it's not critical.
>>> 
>>> thanks for checking up,
>>> 
>>> pol
>>> 
>>> 
>>> Pol M. Llovet
>>> Research Computing CI / Middleware
>>> XSEDE Campus Champion
>>> Montana State University
>>> w: 406-994-3416
>>> c: 406-646-6747
>>> 
>>> 
>>> On Tue, Aug 12, 2014 at 7:49 PM, John Hicks 
>>> <>
>>>  wrote:
>>> Hi Pol,
>>> Has there been any movement on this?  Was anyone able to stand up an 
>>> iperf server (or other) closer to WVSU edge?  Please let me know if I can 
>>> provide and more help on the Internet2 end.
>>> 
>>> Thanks,
>>> -John
>>> 
>>> On Aug 5, 2014, at 6:24 AM, Pol Llovet 
>>> <>
>>>  wrote:
>>> 
>>>> Hi, we are diagnosing a slow throughput situation to West Virginia. All 
>>>> the tests through to the Washington DC internet2 PS node look good 
>>>> (bwctl.wash.net.internet2.edu).  I would like to test from that node 
>>>> through to the endpoint.  
>>>> 
>>>> The endpoint is just a workstation IP, and there aren't any perfsonar 
>>>> nodes on-campus that I can test against.  I was thinking I could just do 
>>>> a traceroute/ping test from the node UI, but it doesn't have the UI 
>>>> exposed for testing (that I could find).  And since I don't have a PS 
>>>> endpoint at one end, I can't use the bw* cli tools.
>>>> 
>>>> Any tips on how I could diagnose the rest of this issue?
>>>> 
>>>> Pol M. Llovet
>>>> Research Computing / Middleware
>>>> Montana State University
>>>> w: 406-994-3416
>>>> c: 406-646-6747