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[perfsonar-user] NTP errors when running bwctl, and iperf3 times out


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  • From: "Merzouki, Mheni (IntlAssoc)" <>
  • To: "" <>
  • Subject: [perfsonar-user] NTP errors when running bwctl, and iperf3 times out
  • Date: Wed, 28 Nov 2018 18:53:18 +0000
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Hi all,

 

i'm new to using perfsonar, i have the latest perfsonar-toolkit installed on my machine.

i'm trying to test the throughput and bandwidth of my network, i'm doing that by running iperf3 and bwctl as a client for one of the servers provided at http://stats.es.net/ServicesDirectory

 

- for BWCTL

 

this is what i get when running bwctl

 

user@machine:~$ bwctl -a 10 -v -T iperf3 -t 30 -O 4 -c "alt-tic-cdc-pe-b-perfsonar.net.nih.gov:4823"

Messages being sent to syslog(user,err)

bwctl: NTP: STA_NANO should be set. Make sure ntpd is running, and your NTP configuration is good.

bwctl: getaddrinfo(): Name or service not known

bwctl: I2AddrAddrInfo failed

bwctl: Unable to connect to alt-tic-cdc-pe-b-perfsonar.net.nih.gov:4823

 

i'm getting NTP errors even thought i use the -a option, and my ntp service is active

 

antd@solarflare1:~$ sudo service ntp status

● ntp.service - LSB: Start NTP daemon

   Loaded: loaded (/etc/init.d/ntp; bad; vendor preset: enabled)

   Active: active (running) since Wed 2018-11-28 13:16:02 EST; 10min ago

     Docs: man:systemd-sysv-generator(8)

  Process: 5800 ExecStop=/etc/init.d/ntp stop (code=exited, status=0/SUCCESS)

  Process: 5881 ExecStart=/etc/init.d/ntp start (code=exited, status=0/SUCCESS)

    Tasks: 1

   Memory: 568.0K

      CPU: 63ms

   CGroup: /system.slice/ntp.service

           └─5893 /usr/sbin/ntpd -p /var/run/ntpd.pid -g -u 111:117

 

Nov 28 13:16:02 solarflare1 systemd[1]: Starting LSB: Start NTP daemon...

Nov 28 13:16:02 solarflare1 ntp[5881]:  * Starting NTP server ntpd

Nov 28 13:16:02 solarflare1 ntp[5881]:    ...done.

Nov 28 13:16:02 solarflare1 systemd[1]: Started LSB: Start NTP daemon.

Nov 28 13:16:02 solarflare1 ntpd[5893]: proto: precision = 0.068 usec (-24)

Nov 28 13:16:02 solarflare1 ntpd[5893]: switching logging to file /var/log/ntpd

 

- for iperf3

 

I always get a connection time out, eventhough i can ping the specified server, this is what i get when i run the verbose mode.

 

user@machine:~$ iperf3 -V -c wash-pt1.es.net

iperf 3.6

Linux solarflare1 4.4.0-131-generic #157-Ubuntu SMP Thu Jul 12 15:51:36 UTC 2018 x86_64

iperf3: error - unable to connect to server: Connection timed out

 

any help or pointers would be very apreciated.

thank you.

 

Mheni.

 

 


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