perfSONAR User Q&A and Other Discussion

["Garnizov, Ivan (RRZE)" <>]

Hi Dan,

 

“. The new interface has an IP on the same subnet as the primary interface, if that matters at all.”

Here in the doc http://docs.perfsonar.net/manage_dual_xface.html#ip-addressing-strategy you will see some extra configuration, which is needed to make the linux system distinguish between the interfaces.

Also note that: “ It is recommended that you assign each interface to a different subnet. ” {from documentation}

 

Could you also try to setup a bwctl or owamp test from the secondary interface?

Have a look at the running processes and see how (about the options with which) the ping test is executed. This might give us a clue on what is wrong.

 

And of course please make sure that on the external FW you have the correct exceptions/rules for the new IP.

 

Regards,

Ivan Garnizov

 

GEANT SA1T2: pS deployments GN Operations

GEANT SA2T3: pS development team

GEANT SA3T5: eduPERT team

 

 

 

From: [mailto:] On Behalf Of Daniel Manzo
Sent: Donnerstag, 13. Oktober 2016 21:11
To: perfsonar-user
Subject: [perfsonar-user] two NICs on same subnet

 

Hi all,

 

My current perfSONAR setup is an HP server with 8 GB of RAM and an OS of RHEL 6.8. I installed using the CentOS bundle method with perfsonar-toolkit. My perfSONAR server is behind a firewall, and we have added another network interface in order to split our tests for bandwidth and latency. After setting up a normal ping test on the new interface via the webpage, I am not seeing any results at all being populated. The new interface has an IP on the same subnet as the primary interface, if that matters at all. I tried following the instructions on the “Configuring a Host with Multiple Interfaces” page, but it did not work. Any and all help is greatly appreciated.

 

Best regards,

 

Dan Manzo