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LPAR Networking: Can't ping

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Operating Systems AIX LPAR Networking: Can't ping
# 8  
Old 07-17-2012
You need a gateway or an adapter into that other subnet. So is 10.1.40.1 a gateway? Is it up and running?
# 9  
Old 07-17-2012
Yes, 10.1.40.1 is a gateway and it's up and running. My other systems using that as the default GW is up.
# 10  
Old 07-17-2012
Is the gateway 10.1.40.1 external ie. not an LPAR but a router? If yes, you might be missing a SEA (Shared Ethernet Adapter) to bridge the VLAN to the physical LAN. Maybe compare with the LPARs that are working, if they use a SEA.
In the output of your lsdev -Ccadapter I see no SEA listed. That could be it.
# 11  
Old 07-17-2012
Quote:
Originally Posted by zaxxon
Is the gateway 10.1.40.1 external ie. not an LPAR but a router? If yes, you might be missing a SEA (Shared Ethernet Adapter) to bridge the VLAN to the physical LAN. Maybe compare with the LPARs that are working, if they use a SEA.
In the output of your lsdev -Ccadapter I see no SEA listed. That could be it.
I'm 99% sure 10.1.40.1 is external because my non-LPAR systems use that gateway as well.

How do I know if an LPAR is using a SEA? I know I have a SEA because on the VIO Server...

Code:
$ lsmap -all -net
SVEA    Physloc
----- ----------------------------------------
ent2  U9110.51A.06A027D-V1-C3-T1

SEA                     ent3
Backing device          ent0
Physloc                 U788C.001.AAAA6218-P1-T1

On the LPAR that's working....
Code:
# lsdev -Ccadapter
ent0   Available         Virtual I/O Ethernet Adapter (l-lan)
ide0   Defined     01-08 ATA/IDE Controller Device
vsa0   Available         LPAR Virtual Serial Adapter
vscsi0 Available         Virtual SCSI Client Adapter

And on the LPAR that's not working:
Code:
# lsdev -Ccadapter
ent0   Available 01-08 10/100/1000 Base-TX PCI-X Adapter (14106902)
ent1   Available       Virtual I/O Ethernet Adapter (l-lan)
ide0   Available 03-08 ATA/IDE Controller Device
usbhc0 Available 02-08 USB Host Controller (33103500)
usbhc1 Available 02-09 USB Host Controller (33103500)
vsa0   Available       LPAR Virtual Serial Adapter
vscsi0 Available       Virtual SCSI Client Adapter

# 12  
Old 07-17-2012
Right, SEA is only visible on VIO, my bad. Hm, no more ideas from here, sorry. Hopefully someone else comes up with an idea.
# 13  
Old 07-17-2012
Quote:
Originally Posted by zaxxon
Right, SEA is only visible on VIO, my bad. Hm, no more ideas from here, sorry. Hopefully someone else comes up with an idea.
That's alright zaxxon. Thanks for the quick responses Smilie

I'm just really frustrated...I don't have a lot of experience with AIX. I have a little more experience with Solaris and it's almost trivial to setup the network on that platform. I've been staring at the terminal for a few days but have no idea what the problem could be Smilie

---------- Post updated at 03:58 PM ---------- Previous update was at 03:55 PM ----------

Here's a question: how do I verify the interface I have on my LPAR is using the SEA? As in, what command(s) do I run on the LPAR to see if it's linked up correctly?
# 14  
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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