Virtual Ethernet VIO HMC LPARs


 
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Operating Systems AIX Virtual Ethernet VIO HMC LPARs
# 8  
Old 06-13-2009
Answers:
1) I think so but haven't tried it anywhere

2) Definitely yes - I do this on my 2 VIOs and then create a Etherchannel composed of the 2 SEAs (1 from each VIO) on the client LPAR for redundancy.
# 9  
Old 06-15-2009
Thanks for the reply.

The only problem which I face is with the VLANs. May be you can help me out.


on my VIO:
My Virtual Adapter has the following properties
Default VLAN ID: 102
Additional VLANs to accept: 103
IEEE 801.Q ==> YES
Trunk ==> YES
This one is mapped to the physical adapter ENT1 using the command
mkvdev -sea ent0 -vadapter ent3 -default ent3 -defaultid 102
ent4 Available
et4
so I get en4 ==> I give it the IP 172.16.102.40
I can ping my gateway and outside..
No issues what-so-ever.



My Client LPAR has two virtual ethernet adapters
en0 ==> default vlan id: 102 (IP 172.16.102.50)
I can ping outside // to gateway....no issues what-so-ever

en1 ==> default vlan id: 103 (IP 172.16.103.50) {I can't use this yet because SEA has not been configured to route the packets to external... I try pinging.. nothing happens}

IEEE 801.Q ==> NO
Trunk ==> NO


Now I go back to my VIO try to add the 103 VLAN to my SEA
this is how I add
mkvdev -vlan ent2 -tagid 103
ent5 Available
en5
et5

*** However, I cannot give any IP address to en5, it gives me error..
But that's not the issue....
I want my LPAR which is using 172.16.103.50 to go to external network.
But it doesn't go out.

Tried so many methods...really exhausted..


read several documents:
latest one: http://www.google.com/url?sa=t&sourc...S_dFwkS1kHHn9w
IBM - Create an SEA with vlan tagging and without

but doesn't help..


any info would be appreciated...
# 10  
Old 06-15-2009
  1. I tend not to give IP's to the adapters I create for sea on the vio servers.
  2. Yes, you should use a different VLAN ID for each subnet you create virtual adapters for.
  3. The etherchannel setup is a good idea for failover between the two vio servers, but I would only use the backup adapter feature rather than combining the two adapters.
Padow
# 11  
Old 06-16-2009
I know where my problem is now. finding the problem is 50% of the solution.

What I need is here

SEA: Bridging Three VLAN, untagged
VLAN 101,102,103

Command:
$mkvdev -sea ent0 -vadapter ent1 -default ent1 -defaultid ???

$mkvdev -sea ent0 -vadapter ent1 -default ent1 -defaultid 101,102,103





VLAN 101,102,103 frames in the Hypervisor are bridged to the external network as untagged frames

Untagged frames from the external network are tagged with VLAN 101,102,103 and bridged to the Hypervisor switch

Tagged VLAN 101,102,103 frames from the external network are bridged through ent1.



Postscript:

Some Documents:
http://lpar.co.uk/TP/VLAN.pdf
http://learnitfromshiva.wordpress.co...7/08/aix-lpar/
http://www.ibm.com/developerworks/fo...hreadID=130502
http://www.ibmsystemsmag.com/aix/ene...e/20127p1.aspx

Last edited by filosophizer; 09-08-2009 at 06:52 AM..
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