Virtual Ethernet VIO HMC LPARs Post: 302321619

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Operating Systems AIX Virtual Ethernet VIO HMC LPARs Post 302321619 by homeyjoe on Monday 1st of June 2009 05:46:51 PM

06-01-2009

Registered User

This can be a tough concept to grasp - I'll list the steps I do.

1. Edit VIO profile from the HMC like you list in #2.
- I noticed that the steps you listed in #2 go into the 'Dynamic Logical Partitioning' but be careful because if you don't make changes to the profile also then when you reboot the lpar (VIO or client) all changes will be lost.
- Make sure you put a checkmark in 'Access external network Trunk priority'. Also , make note of which adapter ID you give it (it doesn't matter what the number is, this will be used later when you do the mkvdev command). I used 23 because we have a .23.xxx network segment and a .41.xxx segment (you can guess what I used for the other virtual ethernet adapter id).

2. Edit the lpar client's profile from the HMC and do all of the steps you listed under #2
- BUT do NOT put a checkmark in 'Access external network'
- Use the same Adapter ID you made note of in my Step 1. I also use the same ID for the VLAN ID.

3. Create the SEA on VIO1 - (on our system the 23 segment cable is plugged into ent1)
Example from my VIO1:
# lsdev -Cc adapter |grep ent

ent0 Available 02-08 10/100/1000 Base-TX PCI-X Adapter (14106902)
ent1 Available 0A-00 10/100/1000 Base-TX PCI-Express Adapter (14104003)
ent2 Available 0A-01 10/100/1000 Base-TX PCI-Express Adapter (14104003)
ent3 Available 08-08 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent4 Available 08-09 2-Port 10/100/1000 Base-TX PCI-X Adapter (14108902)
ent5 Available Virtual I/O Ethernet Adapter (l-lan)
ent6 Available Virtual I/O Ethernet Adapter (l-lan)

## Find 23 segment (C23) virtual adapter (Ex. ent5)
# lscfg | grep ent | grep Virtual
* ent5 U9117.MMA.10FF11F-V3-C23-T1 Virtual I/O Ethernet Adapter (l-lan)
* ent6 U9117.MMA.10FF11F-V3-C41-T1 Virtual I/O Ethernet Adapter (l-lan)

## So we will create the SEA using ent1 as the physical adapter and ent5 as the virtual adapter
$ mkvdev -sea ent1 -vadapter ent5 -default ent5 -defaultid 23

4. Boot the client lpar or run cfgmgr if it's already up and running - then configure the adapter as usual with 'smitty tcpip'

Hope this helps.
Homeyjoe

homeyjoe

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ethers

ethers(4)							   File Formats 							 ethers(4)

NAME

       ethers - Ethernet address to hostname database or domain

DESCRIPTION

       The  ethers  file  is  a local source of information about the (48-bit) Ethernet addresses of hosts on the Internet. The ethers file can be
       used in conjunction with or instead of other ethers sources, including the NIS maps ethers.byname and ethers.byaddr, the NIS+ table ethers,
       or Ethernet address data stored on an LDAP server. Programs use the ethers(3SOCKET) routines to access this information.

       The ethers file has one line for each host on an Ethernet. The line has the following format:

	      Ethernet-address official-host-name

       Items are separated by any number of SPACE and/or TAB characters. A `#' indicates the beginning of a comment extending to the end of line.

       The  standard  form  for  Ethernet  addresses is "x:x:x:x:x:x" where x is a hexadecimal number between 0 and ff, representing one byte. The
       address bytes are always in network order. Host names may contain any printable character other than SPACE, TAB, NEWLINE, or comment  char-
       acter.

FILES

       /etc/ethers

SEE ALSO

       ethers(3SOCKET), hosts(4), nsswitch.conf(4)

SunOS 5.10							    22 Jul 2004 							 ethers(4)