perfSONAR User Q&A and Other Discussion

["Wussler, Doug" <>]

Joseph -

Yes, I have this configuration working with the PerfSONAR Toolket ISO for
CentOS 6.  I followed instructions at
http://docs.perfsonar.net/manage_dual_xface.html and then added the
parameters mentioned at
http://z-issue.com/wp/linux-rhel-6-centos-6-two-nics-in-the-same-subnet-but
-secondary-doesnt-ping/.

use ³sysctl ­a | grep rp" to verify the 6 kernel parameters
and use ³ip rule list² to verify your routing changes, as suggested in
http://docs.perfsonar.net/manage_dual_xface.html

Doug



Doug Wussler
850.645.4201
Application Developer/Designer ­ Core Network Team
Information Technology Services
RK Shaw Building
644 W. Call Street
Tallahassee, FL  32304
 




On 6/24/16, 4:15 PM, 
"
 on behalf of
Joseph Ghobrial" 
<
 on behalf of
>
 wrote:

>Hi, has anyone setup a perfsonar box with 2 NICs in the same subnet? I¹m
>trying to get my kernel routing rules correct along with what I believe
>is necessary for the /proc/sys/net/ipv4/conf/*/rp_filter kernel options.
>
>The issue I¹m trying to resolve is my wanting a latency testing NIC with
>a separate throughput testing NIC and have the traffic correctly enter
>and leave the respective NIC. Right now the traffic obeys the default
>gateway rule for some reason even though I¹ve specified what I believe is
>the correct combination of rules to get things working with each
>respective NIC.
>
>This is probably pretty terse and I¹m not sure if a supported
>configuration.
>
>Thanks,
>Joseph
>
>-- 
>Joseph Ghobrial
>Systems Analyst II
>Office of Information Technology
>Rice University
>x5190
>jghobrial @ rice.edu
>