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Full Discussion: LPAR Networking: Can't ping
Operating Systems AIX LPAR Networking: Can't ping Post 302673231 by zaxxon on Tuesday 17th of July 2012 05:11:47 PM
Old 07-17-2012
I would suggest you compare via HMC the settings of the virtual ethernet adapter of one of your working LPARs with the non-working one.
Both have to be in a VLAN that is set on the SEA on the VIO. Your SEA can have more than 1 Virtual Lan ID. It needs to match at least one VLAN-ID between your LPAR's vAdapter and the VIO/SEA. It could also be, that all your client LPAR vAdapters are in the same VLAN which makes things a tad easier when comparing settings.
Maybe you have accidentally hooked a box for trunking or priority, whatever.
Have no HMC at hand, but here is a link, that shows exactly how things are set up:

http://www.ibm.com/developerworks/sy...5-virtualvlan/

Last edited by zaxxon; 07-18-2012 at 05:45 AM.. Reason: Rephrasing the whole post to a more proper english
 

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MRTG-PING-PROBE(1)					      General Commands Manual						MRTG-PING-PROBE(1)

NAME
mrtg-ping-probe - ping probe module for Multi Router Traffic Grapher DESCRIPTION
mrtg-ping-probe is a ping probe module for MRTG 2.x. It is used to monitor the round trip time and packet loss to networked devices. MRTG uses the output of mrtg-ping-probe to generate graphs visualizing minimum and maximum round trip times or packet loss. mrtg-ping-probe is not run directly, but is called by MRTG as a helper when it needs to determine ping time to a host. Act responsibly: do not use mrtg-ping-probe to ping devices without the owner's permission. Just imagine if 10,000 people decided to ping your hosts! mrtg-ping-probe is meant to be used within your network to get round trip time performance figures for your network. OPTIONS
To use mrtg-ping-probe you need to configure MRTG to call it from within the definition of a target host. This is done in the MRTG config file, which is usually /etc/mrtg.conf. Here's an example snippet: change the target name and IP address to suit your needs. Target[your.target.ping]: `/usr/bin/mrtg-ping-probe 123.456.789.123` SetEnv[your.target.ping]: MRTG_INT_IP="123.456.789.123" MRTG_INT_DESCR="ping" MaxBytes[your.target.ping]: 100 AbsMax[your.target.ping]: 200 Options[your.target.ping]: gauge, growright YLegend[your.target.ping]: ping time (ms) ShortLegend[your.target.ping]: ms Legend1[your.target.ping]: Maximum Round Trip Time in ms Legend2[your.target.ping]: Minimum Round Trip Time in ms Legend3[your.target.ping]: Maximal 5 Minute Maximum Round Trip Time in ms Legend4[your.target.ping]: Maximal 5 Minute Minimum Round Trip Time in ms LegendI[your.target.ping]:  Max: LegendO[your.target.ping]:  Min: Pay close attention to the backticks in the first line which tell MRTG to execute the nominated external program. Note also that you need to use the "gauge" option, since the results of subsequent ping probes are independant values and not an incrementing counter. SEE ALSO
mrtg(1). The latest release of mrtg-ping-probe can be found on the web at http://pwo.de/projects/mrtg/ AUTHOR
This manual page was written by Jonathan Oxer <jon@debian.org>, for the Debian project (but may be used by others). April 14, 2003 MRTG-PING-PROBE(1)
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